METSO INDIA CUSTOMER MAGAZINE FOR THE MINING AND CONSTRUCTION INDUSTRIES · PDF...
Transcript of METSO INDIA CUSTOMER MAGAZINE FOR THE MINING AND CONSTRUCTION INDUSTRIES · PDF...
(34) (1)
resultsminerals & aggregates
METSO INDIA CUSTOMER MAGAZINE FOR THE MINING AND CONSTRUCTION INDUSTRIES Vol. 18 4 2011
India races on….Jaypee Group and Metso create history together 4
For more information: www.metso.com/performancesolutions
Long term reliabilityMetso Perfomance Solutions consists of Metso global team of professionals possessing experience, technological know-how and pro-active attitude to extend the life cycle of your industrial processes.
We build solid long term relationships with our customers through mutual learning. Understanding of your value chain enables us to steer innovations based on your daily challenges.
QR code for smartphones
2716666www.metso.com/in
2 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 3
PUBLISHED BY Metso Minerals India Pvt. Ltd.,
DLF Building No. 10,
Tower A, 1st Floor,
DLF Cybercity, DLF Phase II,
Gurgaon - 122002,
Tel: +91 124 2716666,
Fax: +91 124 2351601
EDITORDinesh Sharda
ASSOCIATE EDITORIAL Amol Sinha, Amit Mishra, Arup Raha,
Ashutosh Agarwal, Niraj Srivastava,
Peeyush Bajpai, Sudhir Kamath.
RESULTSMetso India customer magazine is a
quarterly magazine and is for
circulation in India. To receive your
copy, please write to
Metso is the leading global supplier of
technology and services for the mining
and construction industries. Our
customers work in quarrying,
aggregates production, construction,
civil engineering, mining and minerals
processing.
FOR MORE INFORMATIONPlease write to the editor
at [email protected] or
visit us at www.metso.com/in
In this issue
4 India races on….
Jaypee Group and Metso create
history together
10 Metso Process Technology and
Innovation, Metso’s SmartTag™
Ore tracking, the next generation
and beyond
14 Metso C120 Jaw Crusher
The new face of reliability
Dear Customer,
Looking at 2011 in retrospect draws a lot of learning when we see it from the perspective of what we all have achieved together. It is
always good to take stock and learn from the experience as it gives us a better understanding of how we should plan for the future.
We expanded our flagship manufacturing unit in India, Metso Park, by acquiring additional land of around 30 acres in Alwar, Rajasthan.
With this Metso Park has now become Metso’s second biggest manufacturing base spanning around 80 acres. Amongst the first of
factories opened in this facility, Slurry pumps and Rubber factories have already gathered steam this year and we reached the landmark of
producing and selling 1000 Pumps in one single year. Metso Park is accredited with some of the best integrated management practices
and certifications such as ISO 9001, ISO 14001 and OSHAS18001, making it a truly global facility. This year will see further expansion at
Metso Park and we are now ready to rollout our Track Plants and open the Vibrating Equipments factory from this facility. Our strategy of
being closer to the markets is clearly in action now.
Our mining customers rediscovered their interest for HGMS. The technology has the unique efficiency to scavenge tailings, thereby greatly
improving the recovery by ensuring almost zero loss of precious iron ore minerals. Due to its unique features the demand outstrips supply
and we are working hard to improve deliveries.
We continued to work towards making our offering more competitive by investing in enhancing our local skills in engineering, procure-
ment and project management. We have also further strengthened our Service capability with increased investment in distribution and
warehousing with the objective of serving our customers more efficiently. Year 2011 started with optimism but has ended with skepticism
about future rate of growth. Industry is looking for clear policy signals to spur the growth momentum. We sincerely hope that this
skepticism gives way to growth soon. We are committed to support you with renewed vigor and are looking forward to working with our
customers in supporting their needs for new investment or optimizing the existing one.
We thank you for your patronage and wish you a happy and successful year ahead !
Kamal PahujaVice President – IndiaMining & Construction Technology
16 Ellipti Flo Screen
For high capacity, high moisture
screening
20 News in brief
Global experts introduce Metso’s
Comprehensive mining solutions
to Tata Steel Limited
22 Slag crushing technology from
Metso
26 Metso Vertimills® in Iron Ore
The most efficient Grinding solution
to Iron ore processing
30 Facilities for the Sochi Winter
Olympics constructed
with high-quality aggregates
(2) (3)
2 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 3
PUBLISHED BY Metso Minerals India Pvt. Ltd.,
DLF Building No. 10,
Tower A, 1st Floor,
DLF Cybercity, DLF Phase II,
Gurgaon - 122002,
Tel: +91 124 2716666,
Fax: +91 124 2351601
EDITORDinesh Sharda
ASSOCIATE EDITORIAL Amol Sinha, Amit Mishra, Arup Raha,
Ashutosh Agarwal, Niraj Srivastava,
Peeyush Bajpai, Sudhir Kamath.
RESULTSMetso India customer magazine is a
quarterly magazine and is for
circulation in India. To receive your
copy, please write to
Metso is the leading global supplier of
technology and services for the mining
and construction industries. Our
customers work in quarrying,
aggregates production, construction,
civil engineering, mining and minerals
processing.
FOR MORE INFORMATIONPlease write to the editor
at [email protected] or
visit us at www.metso.com/in
In this issue
4 India races on….
Jaypee Group and Metso create
history together
10 Metso Process Technology and
Innovation, Metso’s SmartTag™
Ore tracking, the next generation
and beyond
14 Metso C120 Jaw Crusher
The new face of reliability
Dear Customer,
Looking at 2011 in retrospect draws a lot of learning when we see it from the perspective of what we all have achieved together. It is
always good to take stock and learn from the experience as it gives us a better understanding of how we should plan for the future.
We expanded our flagship manufacturing unit in India, Metso Park, by acquiring additional land of around 30 acres in Alwar, Rajasthan.
With this Metso Park has now become Metso’s second biggest manufacturing base spanning around 80 acres. Amongst the first of
factories opened in this facility, Slurry pumps and Rubber factories have already gathered steam this year and we reached the landmark of
producing and selling 1000 Pumps in one single year. Metso Park is accredited with some of the best integrated management practices
and certifications such as ISO 9001, ISO 14001 and OSHAS18001, making it a truly global facility. This year will see further expansion at
Metso Park and we are now ready to rollout our Track Plants and open the Vibrating Equipments factory from this facility. Our strategy of
being closer to the markets is clearly in action now.
Our mining customers rediscovered their interest for HGMS. The technology has the unique efficiency to scavenge tailings, thereby greatly
improving the recovery by ensuring almost zero loss of precious iron ore minerals. Due to its unique features the demand outstrips supply
and we are working hard to improve deliveries.
We continued to work towards making our offering more competitive by investing in enhancing our local skills in engineering, procure-
ment and project management. We have also further strengthened our Service capability with increased investment in distribution and
warehousing with the objective of serving our customers more efficiently. Year 2011 started with optimism but has ended with skepticism
about future rate of growth. Industry is looking for clear policy signals to spur the growth momentum. We sincerely hope that this
skepticism gives way to growth soon. We are committed to support you with renewed vigor and are looking forward to working with our
customers in supporting their needs for new investment or optimizing the existing one.
We thank you for your patronage and wish you a happy and successful year ahead !
Kamal PahujaVice President – IndiaMining & Construction Technology
16 Ellipti Flo Screen
For high capacity, high moisture
screening
20 News in brief
Global experts introduce Metso’s
Comprehensive mining solutions
to Tata Steel Limited
22 Slag crushing technology from
Metso
26 Metso Vertimills® in Iron Ore
The most efficient Grinding solution
to Iron ore processing
30 Facilities for the Sochi Winter
Olympics constructed
with high-quality aggregates
(2) (3)
4 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 5
(4) (5)
India races on….
C O V E R S T O R Y
Jaypee Group and Metso create history together
Buddha International Circuit (BIC), undoubtedly, is the finest example of sports infrastructure in India. Not something that we acknowledge easily since we may be biased but the international audience and media minced no words in praising this big leap that India took in October 2011. The 5.1km race track has beaten the best of quality and timelines at the global stage. Jaypee group made India proud this Diwali and gifted the country a sport that is fast growing in popularity. Both the sport and project are symbolic of India’s amazing speed and quality to build world class infrastructure. BIC broke all myths and created benchmarks with the most stringent deadlines and specifications to build the track. With the highest of stakes involved in the USD 400 million project, Jaypee Group believed only Metso could deliver as per time and quality specifications. For Metso it was a dream project that turned out to be the most challenging and satisfying till date.
4 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 5
(4) (5)
India races on….
C O V E R S T O R Y
Jaypee Group and Metso create history together
Buddha International Circuit (BIC), undoubtedly, is the finest example of sports infrastructure in India. Not something that we acknowledge easily since we may be biased but the international audience and media minced no words in praising this big leap that India took in October 2011. The 5.1km race track has beaten the best of quality and timelines at the global stage. Jaypee group made India proud this Diwali and gifted the country a sport that is fast growing in popularity. Both the sport and project are symbolic of India’s amazing speed and quality to build world class infrastructure. BIC broke all myths and created benchmarks with the most stringent deadlines and specifications to build the track. With the highest of stakes involved in the USD 400 million project, Jaypee Group believed only Metso could deliver as per time and quality specifications. For Metso it was a dream project that turned out to be the most challenging and satisfying till date.
(6) (7)
6 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 7
These asphalt tracks have to take a lot of
beating far exceeding that of a
carriageway of highway and hence have
to be designed to deliver higher
strength. To achieve higher strength,
aggregate quality and specification also
has to be superior. The project was
subcontracted to Oriental Structural
Engineering and 4 out of 6 crushing &
screening plants being used at Yamuna
Expressway were handed over for laying
of F1 track to M/s Oriental Structural
Engineering Pvt. Ltd. They have vast
experience in the development of
various major highways, were confident
to deliver the superior quality of track
and they not only met but exceeded the
expectations by using Metso Plants.
Says Mr. Anjan Meher, DGM (Plant & Machinery), Oriental Structural Engineering Pvt Ltd. ” In the F1 tracks we
had followed the British Standard
specifications so maintaining the quality of
works was more challenging. Timelines
were very strict too. Metso machines were
quite efficient and hence 80% of the raw
materials came from Metso machines. “
C O V E R S T O R YC O V E R S T O R Y
Opening doors to F1
The Formula 1 Grand Prix started in 1950
and achieved instant commercial success
and publicity. Held in 68 countries today
F1 championship came to India in its
62nd season. When the opportunity of
hosting the prestigious event started
making headlines in India, quite a few
potential venues popped up to host the
coveted event. Kolkata, Chennai,
Coimbatore, Bengaluru, Hyderabad,
Mumbai, Delhi, Gurgaon & Lucknow were
all deliberated by the various state
administrations & industrialists. National
Capital Region with its established image
and infrastructure became the obvious
choice in the end. Greater Noida that
already is seen as world class city by living
standards and by the quality of
infrastructure, became the first choice
and Jaypee Group won the project hands
down for its impeccable legacy of
executing the best of projects in the
country, that gave birth to the biggest
sporting dream of India - The “Buddha
International Circuit”.
The 5.14 km long Buddha International
Circuit (BIC) has been designed by
renowned German architect and race
track designer, Herman Tilke, who has
designed world –class race circuits in
Malaysia, Bahrain, China, Turkey,
Indonesia, the UAE, South Africa, South
Korea and the US. Tilke’s signature is
unmistakably inscribed across BIC. Two
expansive straights, blend into an
interesting mix of 16 curves and corners,
making for an exciting challenge. These
combinations of high speed straights and
elevations are is what makes this sport
exciting. And to talk about the top speed,
F1 cars on BIC can zoom as high as
325km/hr which is the fastest in the
world.
Yamuna Expressway to F1 Track
JP and Metso’s partnership goes a long
way back with the first delivery of
crushers almost a decade back for the
Tehri Dam project. Several hydro projects
executed since then by JP group from
Tehri to Vishnuprayag to Baglihar Power
Plant found repeat orders to Metso. A
decade long experience of Metso
technology with several C Jaw crushers,
GP cones and HP cones performing day
and night at several projects created a
unique partnership and understanding
between the two companies.
With time, confidence in technology kept
rising and Metso’s expertise created a
niche for itself in many projects so much
so that today over 50 crushers with JP
have an established track record. The
confidence for the critical F1 project also
emanated out of the results from the
prestigious Yamuna Expressway project
that was awarded to JP in 2003. A 165 km
build – operate – transfer (BOT) model
expressway that connects Noida with
Agra had supplies of 6 units of 300 MTPH
plant with the HP300 and B9100SE to
construct the 8 lane expressway. The
results particularly from the HP crusher
were appreciated. All in all the success at
the Yamuna Expressway was the apt
precedent to select Metso for the most
ambitious and critical project – Buddha
International Circuit.
Says Mr. Baldev V Raisinghani, President (Purchase), Jaypee Group, “F-1 is probably
the most prestigious of all events to ever
come to India. Without a shadow of
doubt, the Buddha International Circuit
Greater Noida, which has brought F-1 to
subcontinent for the first time has
created history, whosoever got the
opportunity to participate/witness have
seen history being created. This achieve-
ment is expected to be talked about for
some time to come.”
Special mix for better grip
The F1 race track had international
standards to be adhered to and high
efficiency levels to be delivered. To
achieve a course with a sufficient degree
of undulation, some 12 million cubic
meter of soil was to be excavated. Within
the first three months itself, an elevation
of 14 meters was created, dotted with
features inspired by the best around the
world. Determined to get it right, JPSI
sought inputs from the racing teams
themselves, so that after a series of
factory simulations and modifications, a
fast course that facilitates overtaking was
developed to add to the excitement of
India’s first motorsports event of this
magnitude.
These steep accelerations, high speed
sharp bends and screeching brakings
transfer all the brute force of roaring
engines of F1 cars onto the asphalt tracks.
Specifications for the aggregate and type of standards that were needed for the F1 tracks.
M/s Oriental managed to achieve 3 to 4% better than what the norms required for each case.
Parameter
Medium polishedstone value
Los Angelesabrasion
%m < 20 < 20 < 30 ASTM 131-81Size: 10-15 mm
Water absorption %m < 1.0 < 2 < 2 BS 812
Dust content(< 0.075mm)
%Adhesivity tobituminous binder
Aggregate shape(flakiness index)
Amount of light coloured aggregates in mix
%m
%m
%m
< 0.5
< 20< 16
> 35 no requirement no requirement
< 25 BS 812
> 95 > 90 > 80 ASTMD 1664with ultrasonic
bath
< 1 < 1
> 56 no requirement no requirement British StandardBS 812
Dim. Binder Course Asphalt BaseCourse
Test MethodWearing Course
(6) (7)
6 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 7
These asphalt tracks have to take a lot of
beating far exceeding that of a
carriageway of highway and hence have
to be designed to deliver higher
strength. To achieve higher strength,
aggregate quality and specification also
has to be superior. The project was
subcontracted to Oriental Structural
Engineering and 4 out of 6 crushing &
screening plants being used at Yamuna
Expressway were handed over for laying
of F1 track to M/s Oriental Structural
Engineering Pvt. Ltd. They have vast
experience in the development of
various major highways, were confident
to deliver the superior quality of track
and they not only met but exceeded the
expectations by using Metso Plants.
Says Mr. Anjan Meher, DGM (Plant & Machinery), Oriental Structural Engineering Pvt Ltd. ” In the F1 tracks we
had followed the British Standard
specifications so maintaining the quality of
works was more challenging. Timelines
were very strict too. Metso machines were
quite efficient and hence 80% of the raw
materials came from Metso machines. “
C O V E R S T O R YC O V E R S T O R Y
Opening doors to F1
The Formula 1 Grand Prix started in 1950
and achieved instant commercial success
and publicity. Held in 68 countries today
F1 championship came to India in its
62nd season. When the opportunity of
hosting the prestigious event started
making headlines in India, quite a few
potential venues popped up to host the
coveted event. Kolkata, Chennai,
Coimbatore, Bengaluru, Hyderabad,
Mumbai, Delhi, Gurgaon & Lucknow were
all deliberated by the various state
administrations & industrialists. National
Capital Region with its established image
and infrastructure became the obvious
choice in the end. Greater Noida that
already is seen as world class city by living
standards and by the quality of
infrastructure, became the first choice
and Jaypee Group won the project hands
down for its impeccable legacy of
executing the best of projects in the
country, that gave birth to the biggest
sporting dream of India - The “Buddha
International Circuit”.
The 5.14 km long Buddha International
Circuit (BIC) has been designed by
renowned German architect and race
track designer, Herman Tilke, who has
designed world –class race circuits in
Malaysia, Bahrain, China, Turkey,
Indonesia, the UAE, South Africa, South
Korea and the US. Tilke’s signature is
unmistakably inscribed across BIC. Two
expansive straights, blend into an
interesting mix of 16 curves and corners,
making for an exciting challenge. These
combinations of high speed straights and
elevations are is what makes this sport
exciting. And to talk about the top speed,
F1 cars on BIC can zoom as high as
325km/hr which is the fastest in the
world.
Yamuna Expressway to F1 Track
JP and Metso’s partnership goes a long
way back with the first delivery of
crushers almost a decade back for the
Tehri Dam project. Several hydro projects
executed since then by JP group from
Tehri to Vishnuprayag to Baglihar Power
Plant found repeat orders to Metso. A
decade long experience of Metso
technology with several C Jaw crushers,
GP cones and HP cones performing day
and night at several projects created a
unique partnership and understanding
between the two companies.
With time, confidence in technology kept
rising and Metso’s expertise created a
niche for itself in many projects so much
so that today over 50 crushers with JP
have an established track record. The
confidence for the critical F1 project also
emanated out of the results from the
prestigious Yamuna Expressway project
that was awarded to JP in 2003. A 165 km
build – operate – transfer (BOT) model
expressway that connects Noida with
Agra had supplies of 6 units of 300 MTPH
plant with the HP300 and B9100SE to
construct the 8 lane expressway. The
results particularly from the HP crusher
were appreciated. All in all the success at
the Yamuna Expressway was the apt
precedent to select Metso for the most
ambitious and critical project – Buddha
International Circuit.
Says Mr. Baldev V Raisinghani, President (Purchase), Jaypee Group, “F-1 is probably
the most prestigious of all events to ever
come to India. Without a shadow of
doubt, the Buddha International Circuit
Greater Noida, which has brought F-1 to
subcontinent for the first time has
created history, whosoever got the
opportunity to participate/witness have
seen history being created. This achieve-
ment is expected to be talked about for
some time to come.”
Special mix for better grip
The F1 race track had international
standards to be adhered to and high
efficiency levels to be delivered. To
achieve a course with a sufficient degree
of undulation, some 12 million cubic
meter of soil was to be excavated. Within
the first three months itself, an elevation
of 14 meters was created, dotted with
features inspired by the best around the
world. Determined to get it right, JPSI
sought inputs from the racing teams
themselves, so that after a series of
factory simulations and modifications, a
fast course that facilitates overtaking was
developed to add to the excitement of
India’s first motorsports event of this
magnitude.
These steep accelerations, high speed
sharp bends and screeching brakings
transfer all the brute force of roaring
engines of F1 cars onto the asphalt tracks.
Specifications for the aggregate and type of standards that were needed for the F1 tracks.
M/s Oriental managed to achieve 3 to 4% better than what the norms required for each case.
Parameter
Medium polishedstone value
Los Angelesabrasion
%m < 20 < 20 < 30 ASTM 131-81Size: 10-15 mm
Water absorption %m < 1.0 < 2 < 2 BS 812
Dust content(< 0.075mm)
%Adhesivity tobituminous binder
Aggregate shape(flakiness index)
Amount of light coloured aggregates in mix
%m
%m
%m
< 0.5
< 20< 16
> 35 no requirement no requirement
< 25 BS 812
> 95 > 90 > 80 ASTMD 1664with ultrasonic
bath
< 1 < 1
> 56 no requirement no requirement British StandardBS 812
Dim. Binder Course Asphalt BaseCourse
Test MethodWearing Course
These asphalt tracks have to take a lot of
beating far exceeding that of a
carriageway of highway and hence have
to be designed to deliver higher
strength. To achieve higher strength,
aggregate quality and specification also
has to be superior. The project was
subcontracted to Oriental Structural
Engineering and 4 out of 6 crushing &
screening plants being used at Yamuna
Expressway were handed over for laying
of F1 track to M/s Oriental Structural
Engineering Pvt. Ltd. They have vast
experience in the development of
various major highways, were confident
to deliver the superior quality of track
and they not only met but exceeded the
expectations by using Metso Plants.
Says Mr. Anjan Meher, DGM (Plant & Machinery), Oriental Structural Engineering Pvt Ltd. ” In the F1 tracks we
had followed the British Standard
specifications so maintaining the quality of
works was more challenging. Timelines
were very strict too. Metso machines were
quite efficient and hence 80% of the raw
materials came from Metso machines. “
Opening doors to F1
The Formula 1 Grand Prix started in 1950
and achieved instant commercial success
and publicity. Held in 68 countries today
F1 championship came to India in its
62nd season. When the opportunity of
hosting the prestigious event started
making headlines in India, quite a few
potential venues popped up to host the
coveted event. Kolkata, Chennai,
Coimbatore, Bengaluru, Hyderabad,
Mumbai, Delhi, Gurgaon & Lucknow were
all deliberated by the various state
administrations & industrialists. National
Capital Region with its established image
and infrastructure became the obvious
choice in the end. Greater Noida that
already is seen as world class city by living
standards and by the quality of
infrastructure, became the first choice
and Jaypee Group won the project hands
down for its impeccable legacy of
executing the best of projects in the
country, that gave birth to the biggest
sporting dream of India - The “Buddha
International Circuit”.
The 5.14 km long Buddha International
Circuit (BIC) has been designed by
renowned German architect and race
track designer, Herman Tilke, who has
designed world –class race circuits in
Malaysia, Bahrain, China, Turkey,
Indonesia, the UAE, South Africa, South
Korea and the US. Tilke’s signature is
unmistakably inscribed across BIC. Two
expansive straights, blend into an
interesting mix of 16 curves and corners,
making for an exciting challenge. These
combinations of high speed straights and
elevations are is what makes this sport
exciting. And to talk about the top speed,
F1 cars on BIC can zoom as high as
325km/hr which is the fastest in the
world.
Yamuna Expressway to F1 Track
JP and Metso’s partnership goes a long
way back with the first delivery of
crushers almost a decade back for the
Tehri Dam project. Several hydro projects
executed since then by JP group from
Tehri to Vishnuprayag to Baglihar Power
Plant found repeat orders to Metso. A
decade long experience of Metso
technology with several C Jaw crushers,
GP cones and HP cones performing day
and night at several projects created a
unique partnership and understanding
between the two companies.
With time, confidence in technology kept
rising and Metso’s expertise created a
niche for itself in many projects so much
so that today over 50 crushers with JP
have an established track record. The
confidence for the critical F1 project also
emanated out of the results from the
prestigious Yamuna Expressway project
that was awarded to JP in 2003. A 165 km
build – operate – transfer (BOT) model
expressway that connects Noida with
Agra had supplies of 6 units of 300 MTPH
plant with the HP300 and B9100SE to
construct the 8 lane expressway. The
results particularly from the HP crusher
were appreciated. All in all the success at
the Yamuna Expressway was the apt
precedent to select Metso for the most
ambitious and critical project – Buddha
International Circuit.
Says Mr. Baldev V Raisinghani, President (Purchase), Jaypee Group, “F-1 is probably
the most prestigious of all events to ever
come to India. Without a shadow of
doubt, the Buddha International Circuit
Greater Noida, which has brought F-1 to
subcontinent for the first time has
created history, whosoever got the
opportunity to participate/witness have
seen history being created. This achieve-
ment is expected to be talked about for
some time to come.”
Special mix for better grip
The F1 race track had international
standards to be adhered to and high
efficiency levels to be delivered. To
achieve a course with a sufficient degree
of undulation, some 12 million cubic
meter of soil was to be excavated. Within
the first three months itself, an elevation
of 14 meters was created, dotted with
features inspired by the best around the
world. Determined to get it right, JPSI
sought inputs from the racing teams
themselves, so that after a series of
factory simulations and modifications, a
fast course that facilitates overtaking was
developed to add to the excitement of
India’s first motorsports event of this
magnitude.
These steep accelerations, high speed
sharp bends and screeching brakings
transfer all the brute force of roaring
engines of F1 cars onto the asphalt tracks.
(8) (9)
8 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 9
C O V E R S T O R Y
Niraj SrivastavaVice President, Technical support,
CSR, Metso India
Expertise delivered
The plants supplied to JP were 300 MTPH
3 stage plants with the configuration of
Metso secondary Cone Crusher HP300
and Metso Barmac VSI B9100 SE. These
plants were instrumental in achieving the
desired quality & quantity and to achieve
it was no easy feat; reliability &
productivity which each & every plant of
Metso exuberate were key to delivering
this promise of Metso. Backed by the
technical knowhow and service
commitment from Metso, M/s Oriental
were able to finish the job well within the
stipulated time.
Says Mr. Raisinghani, “The critical
parameters to select the technical
partners were based on past experience
and reputation. We needed a partner
who could not only produce aggregates
as per the specifications but also do it in
the strict timelines given. Metso was the
preferred supplier for us for the
construction of the course aggregates.”
Below are the details of the plants Metso supplied to JP for this project:
Capacity – 300 MTPH, 3 stage, Fixed plant
Grizzly feeder – VMO T 46/12
Primary screen – CVB 2060 – 2D
Cone crusher – HP300
Barmac VSI – B9100 SE (Double Drive,
2x220 kW)
Product screen – CVB 2060 – 3D
Product fraction – (-40)mm
Metso’s expertise delivered aggregates as
per the shape, size and timelines.
Experts in application from Metso studied
the special requirements of aggregate
gradation was as per British standard
which not only exceed the Indian
Standard but also require deep
understanding of qualitative properties of
aggregates. The experts utilised their
knowhow and came out with right
suggestions to M/s Oriental to achieve
the qualitative requirements.
To make the output suitable for this
project, a few modifications were done to
the existing plant to make it suitable for
producing aggregates for F1.
After analysis it was concluded that the
existing aggregate plant would need
additional conveyor belt for stacking of
4th product. So, wire meshes depending
on the product gradation required
should be procured and installed in the
screens.
Says Mr. Raisinghani, “The project
execution despite various problems
met race schedule delivery line and all
participant suppliers played a critical role
in demonstrating highest standard of
sales and support during the execution
of the project. “
Says Mr. Niraj Srivastava, Vice President,
Technical support, CSR, "We are proud that
Metso plants have contributed to the F1
race tracks. Having proven technology with
Fixed Shaft Cone Crusher, Rock on Rock VSI
Technology and High Efficiency Screens &
Feeders, Metso machines produced
aggregates meeting tough international
specifications laid down by the authorities
for preparation of world class F1 Track in
India.
Our Application, Service and After Market
Support facilitated this plant to operate at
optimum level so that the project could be
completed in the tight scheduled time. This
project placed India firmly in world sporting
map and has built a lot of confidence in
Metso technology being able to build
world class sporting infrastructure."
REQUIREMENT OF AGGREGATES FOR BITUMENOUS WORKS AT F-1 RACE TRACK PROJECTActivity Wearing Course DGBM 25 DGBM 40
cum MT/cum MT cum MT/cum MT cum MT/cum MTQuantity 28623 2.4021 68755.3 21764 2.39 52016.0 53641 2.4 128738.4 AddWastage 3% 70818.0 53576.4 132600.6Agg Size(in mm) Total Rqmt QTY ( MT) % QTY( MT) % QTY (MT)
37.5 to 26.5 29172.121 0 0 0 22 29172.12
26.5 to 19 9107.9946 0 17 9107.995 0
26.5 to 13.2 19227.08 14.5 19227.08
19 to 13.2 11550.3 10&2.5* 3513.8 15 8036.466
13.2 to 9.5 11833.7 11&19.5* 11833.7 0 0 0
13.2 to 4.75 34991.9 22 11786.82 17.5 23205.1
9.5 to 4.75 19175.0 17&32* 19175.0
4.75 to 0 121936.8 62&46* 36295.4 46 24645.16 46 60996.25Total 256995.0
Grading of Nominal aggregate size (-) 19 mm IS Sieve Cum % by WT of total aggregate passing
mm Lower Limit of wearing course Upper Limit of wearing course 26.5 100 100 19 79 100
13.2 59 79 9.5 52 72
4.75 35 55 2.36 28 46 1.18 20 34 0.6 15 27 0.3 10 20
0.15 5 13 0.075 2 8
Requirement of aggregates for the F1 race track as required by JP shown below:
These asphalt tracks have to take a lot of
beating far exceeding that of a
carriageway of highway and hence have
to be designed to deliver higher
strength. To achieve higher strength,
aggregate quality and specification also
has to be superior. The project was
subcontracted to Oriental Structural
Engineering and 4 out of 6 crushing &
screening plants being used at Yamuna
Expressway were handed over for laying
of F1 track to M/s Oriental Structural
Engineering Pvt. Ltd. They have vast
experience in the development of
various major highways, were confident
to deliver the superior quality of track
and they not only met but exceeded the
expectations by using Metso Plants.
Says Mr. Anjan Meher, DGM (Plant & Machinery), Oriental Structural Engineering Pvt Ltd. ” In the F1 tracks we
had followed the British Standard
specifications so maintaining the quality of
works was more challenging. Timelines
were very strict too. Metso machines were
quite efficient and hence 80% of the raw
materials came from Metso machines. “
Opening doors to F1
The Formula 1 Grand Prix started in 1950
and achieved instant commercial success
and publicity. Held in 68 countries today
F1 championship came to India in its
62nd season. When the opportunity of
hosting the prestigious event started
making headlines in India, quite a few
potential venues popped up to host the
coveted event. Kolkata, Chennai,
Coimbatore, Bengaluru, Hyderabad,
Mumbai, Delhi, Gurgaon & Lucknow were
all deliberated by the various state
administrations & industrialists. National
Capital Region with its established image
and infrastructure became the obvious
choice in the end. Greater Noida that
already is seen as world class city by living
standards and by the quality of
infrastructure, became the first choice
and Jaypee Group won the project hands
down for its impeccable legacy of
executing the best of projects in the
country, that gave birth to the biggest
sporting dream of India - The “Buddha
International Circuit”.
The 5.14 km long Buddha International
Circuit (BIC) has been designed by
renowned German architect and race
track designer, Herman Tilke, who has
designed world –class race circuits in
Malaysia, Bahrain, China, Turkey,
Indonesia, the UAE, South Africa, South
Korea and the US. Tilke’s signature is
unmistakably inscribed across BIC. Two
expansive straights, blend into an
interesting mix of 16 curves and corners,
making for an exciting challenge. These
combinations of high speed straights and
elevations are is what makes this sport
exciting. And to talk about the top speed,
F1 cars on BIC can zoom as high as
325km/hr which is the fastest in the
world.
Yamuna Expressway to F1 Track
JP and Metso’s partnership goes a long
way back with the first delivery of
crushers almost a decade back for the
Tehri Dam project. Several hydro projects
executed since then by JP group from
Tehri to Vishnuprayag to Baglihar Power
Plant found repeat orders to Metso. A
decade long experience of Metso
technology with several C Jaw crushers,
GP cones and HP cones performing day
and night at several projects created a
unique partnership and understanding
between the two companies.
With time, confidence in technology kept
rising and Metso’s expertise created a
niche for itself in many projects so much
so that today over 50 crushers with JP
have an established track record. The
confidence for the critical F1 project also
emanated out of the results from the
prestigious Yamuna Expressway project
that was awarded to JP in 2003. A 165 km
build – operate – transfer (BOT) model
expressway that connects Noida with
Agra had supplies of 6 units of 300 MTPH
plant with the HP300 and B9100SE to
construct the 8 lane expressway. The
results particularly from the HP crusher
were appreciated. All in all the success at
the Yamuna Expressway was the apt
precedent to select Metso for the most
ambitious and critical project – Buddha
International Circuit.
Says Mr. Baldev V Raisinghani, President (Purchase), Jaypee Group, “F-1 is probably
the most prestigious of all events to ever
come to India. Without a shadow of
doubt, the Buddha International Circuit
Greater Noida, which has brought F-1 to
subcontinent for the first time has
created history, whosoever got the
opportunity to participate/witness have
seen history being created. This achieve-
ment is expected to be talked about for
some time to come.”
Special mix for better grip
The F1 race track had international
standards to be adhered to and high
efficiency levels to be delivered. To
achieve a course with a sufficient degree
of undulation, some 12 million cubic
meter of soil was to be excavated. Within
the first three months itself, an elevation
of 14 meters was created, dotted with
features inspired by the best around the
world. Determined to get it right, JPSI
sought inputs from the racing teams
themselves, so that after a series of
factory simulations and modifications, a
fast course that facilitates overtaking was
developed to add to the excitement of
India’s first motorsports event of this
magnitude.
These steep accelerations, high speed
sharp bends and screeching brakings
transfer all the brute force of roaring
engines of F1 cars onto the asphalt tracks.
(8) (9)
8 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 9
C O V E R S T O R Y
Niraj SrivastavaVice President, Technical support,
CSR, Metso India
Expertise delivered
The plants supplied to JP were 300 MTPH
3 stage plants with the configuration of
Metso secondary Cone Crusher HP300
and Metso Barmac VSI B9100 SE. These
plants were instrumental in achieving the
desired quality & quantity and to achieve
it was no easy feat; reliability &
productivity which each & every plant of
Metso exuberate were key to delivering
this promise of Metso. Backed by the
technical knowhow and service
commitment from Metso, M/s Oriental
were able to finish the job well within the
stipulated time.
Says Mr. Raisinghani, “The critical
parameters to select the technical
partners were based on past experience
and reputation. We needed a partner
who could not only produce aggregates
as per the specifications but also do it in
the strict timelines given. Metso was the
preferred supplier for us for the
construction of the course aggregates.”
Below are the details of the plants Metso supplied to JP for this project:
Capacity – 300 MTPH, 3 stage, Fixed plant
Grizzly feeder – VMO T 46/12
Primary screen – CVB 2060 – 2D
Cone crusher – HP300
Barmac VSI – B9100 SE (Double Drive,
2x220 kW)
Product screen – CVB 2060 – 3D
Product fraction – (-40)mm
Metso’s expertise delivered aggregates as
per the shape, size and timelines.
Experts in application from Metso studied
the special requirements of aggregate
gradation was as per British standard
which not only exceed the Indian
Standard but also require deep
understanding of qualitative properties of
aggregates. The experts utilised their
knowhow and came out with right
suggestions to M/s Oriental to achieve
the qualitative requirements.
To make the output suitable for this
project, a few modifications were done to
the existing plant to make it suitable for
producing aggregates for F1.
After analysis it was concluded that the
existing aggregate plant would need
additional conveyor belt for stacking of
4th product. So, wire meshes depending
on the product gradation required
should be procured and installed in the
screens.
Says Mr. Raisinghani, “The project
execution despite various problems
met race schedule delivery line and all
participant suppliers played a critical role
in demonstrating highest standard of
sales and support during the execution
of the project. “
Says Mr. Niraj Srivastava, Vice President,
Technical support, CSR, "We are proud that
Metso plants have contributed to the F1
race tracks. Having proven technology with
Fixed Shaft Cone Crusher, Rock on Rock VSI
Technology and High Efficiency Screens &
Feeders, Metso machines produced
aggregates meeting tough international
specifications laid down by the authorities
for preparation of world class F1 Track in
India.
Our Application, Service and After Market
Support facilitated this plant to operate at
optimum level so that the project could be
completed in the tight scheduled time. This
project placed India firmly in world sporting
map and has built a lot of confidence in
Metso technology being able to build
world class sporting infrastructure."
REQUIREMENT OF AGGREGATES FOR BITUMENOUS WORKS AT F-1 RACE TRACK PROJECTActivity Wearing Course DGBM 25 DGBM 40
cum MT/cum MT cum MT/cum MT cum MT/cum MTQuantity 28623 2.4021 68755.3 21764 2.39 52016.0 53641 2.4 128738.4 AddWastage 3% 70818.0 53576.4 132600.6Agg Size(in mm) Total Rqmt QTY ( MT) % QTY( MT) % QTY (MT)
37.5 to 26.5 29172.121 0 0 0 22 29172.12
26.5 to 19 9107.9946 0 17 9107.995 0
26.5 to 13.2 19227.08 14.5 19227.08
19 to 13.2 11550.3 10&2.5* 3513.8 15 8036.466
13.2 to 9.5 11833.7 11&19.5* 11833.7 0 0 0
13.2 to 4.75 34991.9 22 11786.82 17.5 23205.1
9.5 to 4.75 19175.0 17&32* 19175.0
4.75 to 0 121936.8 62&46* 36295.4 46 24645.16 46 60996.25Total 256995.0
Grading of Nominal aggregate size (-) 19 mm IS Sieve Cum % by WT of total aggregate passing
mm Lower Limit of wearing course Upper Limit of wearing course 26.5 100 100 19 79 100
13.2 59 79 9.5 52 72
4.75 35 55 2.36 28 46 1.18 20 34 0.6 15 27 0.3 10 20
0.15 5 13 0.075 2 8
Requirement of aggregates for the F1 race track as required by JP shown below:
(10) (11)
P R O D U C T S A N D S O L U T I O N S
Innovation at its best
Metso’s Process Technology and
Innovation group is a world leader in
mineral processing consulting. A
significant amount of this consulting
work involves Process Integration and
Optimisation (PIO) studies, which
includes investigating the effects of drill
and blast design and implementation on
downstream processing. Critical to these
studies is the ability to track specific ore
into and through the plant.
To increase the accuracy of this ore
tracking, Metso Process Technology and
Innovation (PTI) developed a system to
track ores using RFID transponders called
SmartTag™. Since its commercialisation
in 2007 SmartTag™ has been used in the
majority of PTI’s consulting projects and
several permanent systems have been
installed world wide.
The benefits of using SmartTag™
include: linking spatial mine data to time
based processing data; increased
confidence in ore blending; proactive
process changes for known ore types;
and accurate measurement of residence
times in stock piles and bins.
Since 2007 there have been significant
advancements with RFID technology that
has allowed PTI to extend the reach of
SmartTag™ beyond secondary crushing
to tertiary crushing and beyond. This has
been achieved by drastically reducing the
size of the SmartTags from a diameter of
60 mm to 20 mm. The new smaller RFID
tags have been successfully used in
several studies.
The SmartTag™ System
A SmartTag™ RFID tag travels through a
mine and mineral processing plant in a
series of simple steps. Initially, the tag and
insertion location is logged using a hand
held computer or PDA, then it is inserted
into the ore (e.g. into a blast hole). The
tag travels with the ore through digging,
transport and processing, before being
detected at detection locations (on
conveyor belts), when the time and
specific tag is recorded. The RFID tag data
is then loaded into a database and
analysed as required.
To achieve this, the SmartTag™ system
requires five main components. The first
component in the SmartTag™ system is a
PDA, which allows the initial RFID tag
insertion process to become more
efficient and accurate. Each RFID tag is
added to the database using one of three
options; it is associated with a GPS
coordinate; it is associated with a
predefined point (such as a blast hole); or
it is associated with a new point, which
can be accurately located later.
At present the system does not allow for
high precision GPS but it can locate the
nearest point in a series of predefined
points, such as blast holes, and allow the
user to associate RFID tags with these
points.
The next component in the system, the
antenna, is located at the conveyor belts.
The antenna both induces a charge on
the tag and also receives a transmitted
signal back from the tag. The design of
the antenna is decided by two param-
eters, which are its size and its robustness.
The size of the antenna dictates the size
and the strength of the field it radiates.
For this application the area of field
strong enough to charge the tag should
be as large as possible; therefore, the
antenna used for the SmartTag™ system
is the largest available for this frequency
of RFID system.
An RFID reader then decodes the signal
from the antenna and determines the ID
of the RFID tag passing the antenna. Later
versions of the readers also have
auto-tuning capabilities which ensure
that the maximum possible read distance
is achieved at all time. In the SmartTag™
system the reader then transmits the ID
using serial communications.
A data logging or buffer stage improves
the reliability of the systems and also
makes movable systems possible. The
data logger receives data directly from
the RFID reader, stores the IDs with the
time they were detected and monitors
vital system parameters, such as the
tuning state of the antenna. The data
logging stage also makes SmartTag™ less
reliant on communication links (such as
wireless) as the data is stored at the
detection point until a link is established
to the software applications. The critical
communications links, like the one
between the antenna and the reader, are
all wired and very reliable.
The core of the SmartTag™ software is an
SQL (Structured Query Language)
database. The database, located on a
dedicated server, stores all the informa-
tion about the detection points, detected
RFID tags and original locations. There are
several SmartTag™ software applications
which either input data into the database
or use the data to output information.
These include the SmartTagServer, which
reads data from the data loggers, the
SmartTagPDA, which exchanges data
with the PDAs and translates site blast
hole layout diagrams, and the Smart-
TagRes, which calculates the residence
time between two detection points.
Adding mini RFID tags
To expand the applications of SmartTag™
through and beyond secondary crushing
a mini RFID tag was required. To incorpo-
rate the mini RFID tags into the
SmartTag™ system, PTI faced two
significant challenges; firstly, the reduced
read distance, and secondly, making the
mini tags robust.
By reducing the size of the RFID tag, the
size of the antenna in the tag is also
reduced. The size of the antenna in the
tag is directly proportional to the amount
of charge that is induced, for a given field
strength. Therefore, the read range of a
tag will be reduced as the size of the tag
is reduced.
Through investigation, the 20 mm tags
were found to have an insufficient read
range for the standard SmartTag™
installation. PTI trialed two methods for
fixing this issue; one method was to use
two antennas while the second method
was to place the antenna closer to the
RFID tags.
Both systems were tested at an iron ore
mine. Both approaches, dual antennas or
closer antenna distance, were found to
have similar detection capability.
However, based purely on the ease of
installation, a single antenna located
under the belt, was chosen as the new
standard installation method.
The second challenge faced when
incorporating the mini RFID tags into the
SmartTag™ system was how to protect
them sufficiently to survive a blast. A
method previously used by PTI to achieve
this was to encase the tags in a two part
epoxy. The method works well for
protecting the tags, and although it is
time consuming and expensive it is
currently the preferred method for
protecting the tags. Different encasing
materials, such as reinforced nylon, are
still being investigated.
After encasing in epoxy, the mini-tags
have a diameter of 20 mm and are
shown, with a standard SmartTag™ as
reference, in Figure 1. The size of the mini
RFID tags allows them to pass easily
through screens with apertures down to
25 mm.
Conclusions
Metso PTI has successfully incorporated a
smaller, or mini, RFID tag into their
SmartTag™ system. The changes to the
system installation are minor and increase
the reliability of the system as a whole. In
several examples the mini RFID tags have
proven to be, on average, more robust
than normal sized RFID tags.
The PTI team envisage that with the
successful incorporation of the mini RFID
tags into the SmartTag™ system it will
allow applications for the system to be
expanded. These new applications could
include a wider use in the iron ore
industry where size is the critical material
quality. PTI is now working on proving
the reliability of the next size of RFID tags,
the even smaller micro RFID tag, which
can pass through a 10 mm mesh screen.
With the decreasing size of RFID tags and
the development of SmartTag™ into a
truly distributed system, it can be
extended past the mine to cover the
whole minerals supply chain. Detection
points can now be located in the plant,
the port and even at the location of the
customer, such as a blast furnace.
Case Studies
The two case studies presented here
demonstrate applications where it is
advantageous to use the mini RFID tags
rather than the normal size RFID tags.
Case Study 1 - Secondary Crushing
Circuit
As part of a wider PIO study a secondary
crushing circuit was surveyed while
being fed with a particular ore type. To
determine the origin of the ore at any
particular time and, most importantly,
during the surveys, SmartTag™ detection
points were set up at three locations
around the circuit. The three locations
were primary crusher product, secondary
crusher feed and secondary crusher
product.
A total of 384 mini RFID tags were placed
on eight polygons (a polygon is defined
as different ore zones within the mine
block model) after the blast, the ROM pad
and trucks as they tipped ore into the
primary crusher.
Of the 384 tags placed onto either the
muck pile or on the ROM pad 45 per cent
were detected. However, if this is
compared with the percentage of each
polygon that had been excavated by the
end of the trial it is a fair conclusion that
many of the RFID tags that weren’t
detected were also not excavated during
the trial.
To determine the survival rate of the tags
during secondary crushing the number
of tags detected before and after the
secondary crusher were compared. Of
the 128 tags detected before the
secondary crusher, 97 were also detected
after secondary crushing.
However, as there were 52 tags that were
detected after the secondary crusher but
weren’t detected before the secondary
crusher, the real survival rate is difficult to
determine. By just comparing RFID tags
detected at both detection points, it can
10 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 11
SmartTag™ Metso Process Technology and InnovationOre tracking, the next generation and beyond
SmartTag™ is an RFID (Radio Frequency Identification) based technology designed to allow tracking of ore
from its source through blasting, run of mine (ROM) pads, crushers, intermediate stockpiles and finally into
the concentrator. Here we look at current developments and the future direction of the SmartTag™ ore
tracking system.
be concluded that at least 76 per cent of
the mini tags survived secondary
crushing, although this number is likely to
be much higher.
The screen immediately following the
secondary crusher uses panels with 55
mm apertures and, as expected, none of
the tags were recycled back through the
secondary crusher.
The primary application for SmartTag™
was to determine the origin of the ore
being processed during the plant
surveys. In this application, where the
plant feed included ore from ROM mixing
and stock piles, SmartTag™ was essential
for determining which materials were
processed in the plant at the time of the
surveys. Mini tags were required to
enable the ore source to be tracked all
the way through secondary crushing, and
proved to be robust enough to survive
both blasting and secondary crushing.
Case Study 2 - HPGR Circuit
PTI was contracted to assess the
performance of a circuit at a mine located
in South America. The SmartTag™ system
was used in this application to allow the
PTI engineers to know exactly when a
surveyed blast was being processed. For
this reason, detection points were
located on conveyor belts carrying the
product of the primary crusher, the
output of the stock pile and the HPGR
(High Pressure Grinding Roll) feed.
As the blast was being audited RFID tags
were deposited into 68 blast holes, using
an even split of 34 normal tags and 34
mini tags. A further 50 tags were later
added into the trays of 25 trucks at the
primary crusher, using one of each of the
two different types of tags in each truck.
A total of 68 tags were identified at the
primary crusher product detection point,
23 at the stockpile output detection
point and 41 at the HPGR feed detection
point.
The blast occurred on the 22nd of
January and the excavation of the muck
pile took place between the 15th and
17th of March (two months later). The
SmartTag™ system monitored the
material passing through the process
over a period of 30 hours. During this
period, a total of 67 different tags were
detected; 33 were of normal size and 34
were mini tags.
For the stock pile and HPGR feed
detection points, the recovery was
calculated with reference to the 64
distinct RFID tags detected at the primary
crusher. Of the normal tags detected at
the primary crusher detection point, 42.4
per cent were then detected at the HPGR
feed detection point; whereas for the
mini tags 67.6 per cent of tags detected
at the primary crusher were also detected
at the HPGR feed. This shows that the
survival of the mini tags in the circuit is
higher than the normal tags. In a
hypothetical situation, where the
secondary screening mesh is smaller than
50 x 50 mm, normal tags certainly would
not reach the HPGR.
The detection of tags at the primary
crusher was also affected by the removal
of the SmartTag™ system before the
entire blast was processed (for logistical
reasons).
The tags were used to track the material
during an optimization campaign at the
plant. During the plant survey the
material that fed the plant originated
from the central portion of the blast.
An unexpected result was that three of
the mini tags were twice detected at the
HPGR feed detection point. An explana-
tion for this is that they survived the
HPGRs and returned with the circulating
ore (screened to +5 mm).
Says Mr. Peeyush Bajpai, Vice
President, Strategic development,
Mining & Construction Technology,
Metso India, “The Smart TagTM system
offers a reliable way to track the ore from
the mine to input in the processing
circuit and thereby allows for tracking of
characteristics of the ore entering the
process line. It also helps the user to
decide operation parameters and
methodology to be planned for. Having
proven its utility in various mines around
the world, Metso offers the cumulative
experience of varied applications with in
the Smart TagTM, which is a winning
proposition for operations planning and
ore tracking.”
(10) (11)
P R O D U C T S A N D S O L U T I O N S
Innovation at its best
Metso’s Process Technology and
Innovation group is a world leader in
mineral processing consulting. A
significant amount of this consulting
work involves Process Integration and
Optimisation (PIO) studies, which
includes investigating the effects of drill
and blast design and implementation on
downstream processing. Critical to these
studies is the ability to track specific ore
into and through the plant.
To increase the accuracy of this ore
tracking, Metso Process Technology and
Innovation (PTI) developed a system to
track ores using RFID transponders called
SmartTag™. Since its commercialisation
in 2007 SmartTag™ has been used in the
majority of PTI’s consulting projects and
several permanent systems have been
installed world wide.
The benefits of using SmartTag™
include: linking spatial mine data to time
based processing data; increased
confidence in ore blending; proactive
process changes for known ore types;
and accurate measurement of residence
times in stock piles and bins.
Since 2007 there have been significant
advancements with RFID technology that
has allowed PTI to extend the reach of
SmartTag™ beyond secondary crushing
to tertiary crushing and beyond. This has
been achieved by drastically reducing the
size of the SmartTags from a diameter of
60 mm to 20 mm. The new smaller RFID
tags have been successfully used in
several studies.
The SmartTag™ System
A SmartTag™ RFID tag travels through a
mine and mineral processing plant in a
series of simple steps. Initially, the tag and
insertion location is logged using a hand
held computer or PDA, then it is inserted
into the ore (e.g. into a blast hole). The
tag travels with the ore through digging,
transport and processing, before being
detected at detection locations (on
conveyor belts), when the time and
specific tag is recorded. The RFID tag data
is then loaded into a database and
analysed as required.
To achieve this, the SmartTag™ system
requires five main components. The first
component in the SmartTag™ system is a
PDA, which allows the initial RFID tag
insertion process to become more
efficient and accurate. Each RFID tag is
added to the database using one of three
options; it is associated with a GPS
coordinate; it is associated with a
predefined point (such as a blast hole); or
it is associated with a new point, which
can be accurately located later.
At present the system does not allow for
high precision GPS but it can locate the
nearest point in a series of predefined
points, such as blast holes, and allow the
user to associate RFID tags with these
points.
The next component in the system, the
antenna, is located at the conveyor belts.
The antenna both induces a charge on
the tag and also receives a transmitted
signal back from the tag. The design of
the antenna is decided by two param-
eters, which are its size and its robustness.
The size of the antenna dictates the size
and the strength of the field it radiates.
For this application the area of field
strong enough to charge the tag should
be as large as possible; therefore, the
antenna used for the SmartTag™ system
is the largest available for this frequency
of RFID system.
An RFID reader then decodes the signal
from the antenna and determines the ID
of the RFID tag passing the antenna. Later
versions of the readers also have
auto-tuning capabilities which ensure
that the maximum possible read distance
is achieved at all time. In the SmartTag™
system the reader then transmits the ID
using serial communications.
A data logging or buffer stage improves
the reliability of the systems and also
makes movable systems possible. The
data logger receives data directly from
the RFID reader, stores the IDs with the
time they were detected and monitors
vital system parameters, such as the
tuning state of the antenna. The data
logging stage also makes SmartTag™ less
reliant on communication links (such as
wireless) as the data is stored at the
detection point until a link is established
to the software applications. The critical
communications links, like the one
between the antenna and the reader, are
all wired and very reliable.
The core of the SmartTag™ software is an
SQL (Structured Query Language)
database. The database, located on a
dedicated server, stores all the informa-
tion about the detection points, detected
RFID tags and original locations. There are
several SmartTag™ software applications
which either input data into the database
or use the data to output information.
These include the SmartTagServer, which
reads data from the data loggers, the
SmartTagPDA, which exchanges data
with the PDAs and translates site blast
hole layout diagrams, and the Smart-
TagRes, which calculates the residence
time between two detection points.
Adding mini RFID tags
To expand the applications of SmartTag™
through and beyond secondary crushing
a mini RFID tag was required. To incorpo-
rate the mini RFID tags into the
SmartTag™ system, PTI faced two
significant challenges; firstly, the reduced
read distance, and secondly, making the
mini tags robust.
By reducing the size of the RFID tag, the
size of the antenna in the tag is also
reduced. The size of the antenna in the
tag is directly proportional to the amount
of charge that is induced, for a given field
strength. Therefore, the read range of a
tag will be reduced as the size of the tag
is reduced.
Through investigation, the 20 mm tags
were found to have an insufficient read
range for the standard SmartTag™
installation. PTI trialed two methods for
fixing this issue; one method was to use
two antennas while the second method
was to place the antenna closer to the
RFID tags.
Both systems were tested at an iron ore
mine. Both approaches, dual antennas or
closer antenna distance, were found to
have similar detection capability.
However, based purely on the ease of
installation, a single antenna located
under the belt, was chosen as the new
standard installation method.
The second challenge faced when
incorporating the mini RFID tags into the
SmartTag™ system was how to protect
them sufficiently to survive a blast. A
method previously used by PTI to achieve
this was to encase the tags in a two part
epoxy. The method works well for
protecting the tags, and although it is
time consuming and expensive it is
currently the preferred method for
protecting the tags. Different encasing
materials, such as reinforced nylon, are
still being investigated.
After encasing in epoxy, the mini-tags
have a diameter of 20 mm and are
shown, with a standard SmartTag™ as
reference, in Figure 1. The size of the mini
RFID tags allows them to pass easily
through screens with apertures down to
25 mm.
Conclusions
Metso PTI has successfully incorporated a
smaller, or mini, RFID tag into their
SmartTag™ system. The changes to the
system installation are minor and increase
the reliability of the system as a whole. In
several examples the mini RFID tags have
proven to be, on average, more robust
than normal sized RFID tags.
The PTI team envisage that with the
successful incorporation of the mini RFID
tags into the SmartTag™ system it will
allow applications for the system to be
expanded. These new applications could
include a wider use in the iron ore
industry where size is the critical material
quality. PTI is now working on proving
the reliability of the next size of RFID tags,
the even smaller micro RFID tag, which
can pass through a 10 mm mesh screen.
With the decreasing size of RFID tags and
the development of SmartTag™ into a
truly distributed system, it can be
extended past the mine to cover the
whole minerals supply chain. Detection
points can now be located in the plant,
the port and even at the location of the
customer, such as a blast furnace.
Case Studies
The two case studies presented here
demonstrate applications where it is
advantageous to use the mini RFID tags
rather than the normal size RFID tags.
Case Study 1 - Secondary Crushing
Circuit
As part of a wider PIO study a secondary
crushing circuit was surveyed while
being fed with a particular ore type. To
determine the origin of the ore at any
particular time and, most importantly,
during the surveys, SmartTag™ detection
points were set up at three locations
around the circuit. The three locations
were primary crusher product, secondary
crusher feed and secondary crusher
product.
A total of 384 mini RFID tags were placed
on eight polygons (a polygon is defined
as different ore zones within the mine
block model) after the blast, the ROM pad
and trucks as they tipped ore into the
primary crusher.
Of the 384 tags placed onto either the
muck pile or on the ROM pad 45 per cent
were detected. However, if this is
compared with the percentage of each
polygon that had been excavated by the
end of the trial it is a fair conclusion that
many of the RFID tags that weren’t
detected were also not excavated during
the trial.
To determine the survival rate of the tags
during secondary crushing the number
of tags detected before and after the
secondary crusher were compared. Of
the 128 tags detected before the
secondary crusher, 97 were also detected
after secondary crushing.
However, as there were 52 tags that were
detected after the secondary crusher but
weren’t detected before the secondary
crusher, the real survival rate is difficult to
determine. By just comparing RFID tags
detected at both detection points, it can
10 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 11
SmartTag™ Metso Process Technology and InnovationOre tracking, the next generation and beyond
SmartTag™ is an RFID (Radio Frequency Identification) based technology designed to allow tracking of ore
from its source through blasting, run of mine (ROM) pads, crushers, intermediate stockpiles and finally into
the concentrator. Here we look at current developments and the future direction of the SmartTag™ ore
tracking system.
be concluded that at least 76 per cent of
the mini tags survived secondary
crushing, although this number is likely to
be much higher.
The screen immediately following the
secondary crusher uses panels with 55
mm apertures and, as expected, none of
the tags were recycled back through the
secondary crusher.
The primary application for SmartTag™
was to determine the origin of the ore
being processed during the plant
surveys. In this application, where the
plant feed included ore from ROM mixing
and stock piles, SmartTag™ was essential
for determining which materials were
processed in the plant at the time of the
surveys. Mini tags were required to
enable the ore source to be tracked all
the way through secondary crushing, and
proved to be robust enough to survive
both blasting and secondary crushing.
Case Study 2 - HPGR Circuit
PTI was contracted to assess the
performance of a circuit at a mine located
in South America. The SmartTag™ system
was used in this application to allow the
PTI engineers to know exactly when a
surveyed blast was being processed. For
this reason, detection points were
located on conveyor belts carrying the
product of the primary crusher, the
output of the stock pile and the HPGR
(High Pressure Grinding Roll) feed.
As the blast was being audited RFID tags
were deposited into 68 blast holes, using
an even split of 34 normal tags and 34
mini tags. A further 50 tags were later
added into the trays of 25 trucks at the
primary crusher, using one of each of the
two different types of tags in each truck.
A total of 68 tags were identified at the
primary crusher product detection point,
23 at the stockpile output detection
point and 41 at the HPGR feed detection
point.
The blast occurred on the 22nd of
January and the excavation of the muck
pile took place between the 15th and
17th of March (two months later). The
SmartTag™ system monitored the
material passing through the process
over a period of 30 hours. During this
period, a total of 67 different tags were
detected; 33 were of normal size and 34
were mini tags.
For the stock pile and HPGR feed
detection points, the recovery was
calculated with reference to the 64
distinct RFID tags detected at the primary
crusher. Of the normal tags detected at
the primary crusher detection point, 42.4
per cent were then detected at the HPGR
feed detection point; whereas for the
mini tags 67.6 per cent of tags detected
at the primary crusher were also detected
at the HPGR feed. This shows that the
survival of the mini tags in the circuit is
higher than the normal tags. In a
hypothetical situation, where the
secondary screening mesh is smaller than
50 x 50 mm, normal tags certainly would
not reach the HPGR.
The detection of tags at the primary
crusher was also affected by the removal
of the SmartTag™ system before the
entire blast was processed (for logistical
reasons).
The tags were used to track the material
during an optimization campaign at the
plant. During the plant survey the
material that fed the plant originated
from the central portion of the blast.
An unexpected result was that three of
the mini tags were twice detected at the
HPGR feed detection point. An explana-
tion for this is that they survived the
HPGRs and returned with the circulating
ore (screened to +5 mm).
Says Mr. Peeyush Bajpai, Vice
President, Strategic development,
Mining & Construction Technology,
Metso India, “The Smart TagTM system
offers a reliable way to track the ore from
the mine to input in the processing
circuit and thereby allows for tracking of
characteristics of the ore entering the
process line. It also helps the user to
decide operation parameters and
methodology to be planned for. Having
proven its utility in various mines around
the world, Metso offers the cumulative
experience of varied applications with in
the Smart TagTM, which is a winning
proposition for operations planning and
ore tracking.”
Innovation at its best
Metso’s Process Technology and
Innovation group is a world leader in
mineral processing consulting. A
significant amount of this consulting
work involves Process Integration and
Optimisation (PIO) studies, which
includes investigating the effects of drill
and blast design and implementation on
downstream processing. Critical to these
studies is the ability to track specific ore
into and through the plant.
To increase the accuracy of this ore
tracking, Metso Process Technology and
Innovation (PTI) developed a system to
track ores using RFID transponders called
SmartTag™. Since its commercialisation
in 2007 SmartTag™ has been used in the
majority of PTI’s consulting projects and
several permanent systems have been
installed world wide.
The benefits of using SmartTag™
include: linking spatial mine data to time
based processing data; increased
confidence in ore blending; proactive
process changes for known ore types;
and accurate measurement of residence
times in stock piles and bins.
Since 2007 there have been significant
advancements with RFID technology that
has allowed PTI to extend the reach of
SmartTag™ beyond secondary crushing
to tertiary crushing and beyond. This has
been achieved by drastically reducing the
size of the SmartTags from a diameter of
60 mm to 20 mm. The new smaller RFID
tags have been successfully used in
several studies.
The SmartTag™ System
A SmartTag™ RFID tag travels through a
mine and mineral processing plant in a
series of simple steps. Initially, the tag and
insertion location is logged using a hand
held computer or PDA, then it is inserted
into the ore (e.g. into a blast hole). The
tag travels with the ore through digging,
transport and processing, before being
detected at detection locations (on
conveyor belts), when the time and
specific tag is recorded. The RFID tag data
is then loaded into a database and
analysed as required.
To achieve this, the SmartTag™ system
requires five main components. The first
component in the SmartTag™ system is a
PDA, which allows the initial RFID tag
insertion process to become more
efficient and accurate. Each RFID tag is
added to the database using one of three
options; it is associated with a GPS
coordinate; it is associated with a
predefined point (such as a blast hole); or
it is associated with a new point, which
can be accurately located later.
At present the system does not allow for
high precision GPS but it can locate the
nearest point in a series of predefined
points, such as blast holes, and allow the
user to associate RFID tags with these
points.
The next component in the system, the
antenna, is located at the conveyor belts.
The antenna both induces a charge on
the tag and also receives a transmitted
signal back from the tag. The design of
the antenna is decided by two param-
eters, which are its size and its robustness.
The size of the antenna dictates the size
and the strength of the field it radiates.
For this application the area of field
strong enough to charge the tag should
be as large as possible; therefore, the
antenna used for the SmartTag™ system
is the largest available for this frequency
of RFID system.
An RFID reader then decodes the signal
from the antenna and determines the ID
of the RFID tag passing the antenna. Later
versions of the readers also have
auto-tuning capabilities which ensure
that the maximum possible read distance
is achieved at all time. In the SmartTag™
system the reader then transmits the ID
using serial communications.
A data logging or buffer stage improves
the reliability of the systems and also
makes movable systems possible. The
data logger receives data directly from
the RFID reader, stores the IDs with the
time they were detected and monitors
vital system parameters, such as the
tuning state of the antenna. The data
logging stage also makes SmartTag™ less
reliant on communication links (such as
wireless) as the data is stored at the
detection point until a link is established
to the software applications. The critical
communications links, like the one
between the antenna and the reader, are
all wired and very reliable.
The core of the SmartTag™ software is an
SQL (Structured Query Language)
database. The database, located on a
dedicated server, stores all the informa-
tion about the detection points, detected
RFID tags and original locations. There are
several SmartTag™ software applications
which either input data into the database
or use the data to output information.
These include the SmartTagServer, which
reads data from the data loggers, the
SmartTagPDA, which exchanges data
with the PDAs and translates site blast
hole layout diagrams, and the Smart-
TagRes, which calculates the residence
time between two detection points.
Adding mini RFID tags
To expand the applications of SmartTag™
through and beyond secondary crushing
a mini RFID tag was required. To incorpo-
rate the mini RFID tags into the
SmartTag™ system, PTI faced two
significant challenges; firstly, the reduced
read distance, and secondly, making the
mini tags robust.
By reducing the size of the RFID tag, the
size of the antenna in the tag is also
reduced. The size of the antenna in the
tag is directly proportional to the amount
of charge that is induced, for a given field
strength. Therefore, the read range of a
tag will be reduced as the size of the tag
is reduced.
Through investigation, the 20 mm tags
were found to have an insufficient read
range for the standard SmartTag™
Peeyush Bajpai
Vice President, Strategic development,
Mining & Construction Technology,
Metso India
(12) (13)
installation. PTI trialed two methods for
fixing this issue; one method was to use
two antennas while the second method
was to place the antenna closer to the
RFID tags.
Both systems were tested at an iron ore
mine. Both approaches, dual antennas or
closer antenna distance, were found to
have similar detection capability.
However, based purely on the ease of
installation, a single antenna located
under the belt, was chosen as the new
standard installation method.
The second challenge faced when
incorporating the mini RFID tags into the
SmartTag™ system was how to protect
them sufficiently to survive a blast. A
method previously used by PTI to achieve
this was to encase the tags in a two part
epoxy. The method works well for
protecting the tags, and although it is
time consuming and expensive it is
currently the preferred method for
protecting the tags. Different encasing
materials, such as reinforced nylon, are
still being investigated.
After encasing in epoxy, the mini-tags
have a diameter of 20 mm and are
shown, with a standard SmartTag™ as
reference, in Figure 1. The size of the mini
RFID tags allows them to pass easily
through screens with apertures down to
25 mm.
Conclusions
Metso PTI has successfully incorporated a
smaller, or mini, RFID tag into their
SmartTag™ system. The changes to the
system installation are minor and increase
the reliability of the system as a whole. In
several examples the mini RFID tags have
proven to be, on average, more robust
than normal sized RFID tags.
The PTI team envisage that with the
successful incorporation of the mini RFID
tags into the SmartTag™ system it will
allow applications for the system to be
expanded. These new applications could
include a wider use in the iron ore
industry where size is the critical material
quality. PTI is now working on proving
the reliability of the next size of RFID tags,
the even smaller micro RFID tag, which
can pass through a 10 mm mesh screen.
With the decreasing size of RFID tags and
the development of SmartTag™ into a
truly distributed system, it can be
extended past the mine to cover the
whole minerals supply chain. Detection
points can now be located in the plant,
the port and even at the location of the
customer, such as a blast furnace.
Case Studies
The two case studies presented here
demonstrate applications where it is
advantageous to use the mini RFID tags
rather than the normal size RFID tags.
Case Study 1 - Secondary Crushing
Circuit
As part of a wider PIO study a secondary
crushing circuit was surveyed while
being fed with a particular ore type. To
determine the origin of the ore at any
particular time and, most importantly,
during the surveys, SmartTag™ detection
points were set up at three locations
around the circuit. The three locations
were primary crusher product, secondary
crusher feed and secondary crusher
product.
A total of 384 mini RFID tags were placed
on eight polygons (a polygon is defined
as different ore zones within the mine
block model) after the blast, the ROM pad
and trucks as they tipped ore into the
primary crusher.
Of the 384 tags placed onto either the
muck pile or on the ROM pad 45 per cent
were detected. However, if this is
compared with the percentage of each
polygon that had been excavated by the
end of the trial it is a fair conclusion that
many of the RFID tags that weren’t
detected were also not excavated during
the trial.
To determine the survival rate of the tags
during secondary crushing the number
of tags detected before and after the
secondary crusher were compared. Of
the 128 tags detected before the
secondary crusher, 97 were also detected
after secondary crushing.
However, as there were 52 tags that were
detected after the secondary crusher but
weren’t detected before the secondary
crusher, the real survival rate is difficult to
determine. By just comparing RFID tags
detected at both detection points, it can
12 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 13
be concluded that at least 76 per cent of
the mini tags survived secondary
crushing, although this number is likely to
be much higher.
The screen immediately following the
secondary crusher uses panels with 55
mm apertures and, as expected, none of
the tags were recycled back through the
secondary crusher.
The primary application for SmartTag™
was to determine the origin of the ore
being processed during the plant
surveys. In this application, where the
plant feed included ore from ROM mixing
and stock piles, SmartTag™ was essential
for determining which materials were
processed in the plant at the time of the
surveys. Mini tags were required to
enable the ore source to be tracked all
the way through secondary crushing, and
proved to be robust enough to survive
both blasting and secondary crushing.
Case Study 2 - HPGR Circuit
PTI was contracted to assess the
performance of a circuit at a mine located
in South America. The SmartTag™ system
was used in this application to allow the
PTI engineers to know exactly when a
surveyed blast was being processed. For
this reason, detection points were
located on conveyor belts carrying the
product of the primary crusher, the
output of the stock pile and the HPGR
(High Pressure Grinding Roll) feed.
As the blast was being audited RFID tags
were deposited into 68 blast holes, using
an even split of 34 normal tags and 34
mini tags. A further 50 tags were later
added into the trays of 25 trucks at the
primary crusher, using one of each of the
two different types of tags in each truck.
A total of 68 tags were identified at the
primary crusher product detection point,
23 at the stockpile output detection
point and 41 at the HPGR feed detection
point.
The blast occurred on the 22nd of
January and the excavation of the muck
pile took place between the 15th and
17th of March (two months later). The
SmartTag™ system monitored the
material passing through the process
over a period of 30 hours. During this
period, a total of 67 different tags were
detected; 33 were of normal size and 34
were mini tags.
For the stock pile and HPGR feed
detection points, the recovery was
calculated with reference to the 64
distinct RFID tags detected at the primary
crusher. Of the normal tags detected at
the primary crusher detection point, 42.4
per cent were then detected at the HPGR
feed detection point; whereas for the
mini tags 67.6 per cent of tags detected
at the primary crusher were also detected
at the HPGR feed. This shows that the
survival of the mini tags in the circuit is
higher than the normal tags. In a
hypothetical situation, where the
secondary screening mesh is smaller than
50 x 50 mm, normal tags certainly would
not reach the HPGR.
The detection of tags at the primary
crusher was also affected by the removal
of the SmartTag™ system before the
entire blast was processed (for logistical
reasons).
The tags were used to track the material
during an optimization campaign at the
plant. During the plant survey the
material that fed the plant originated
from the central portion of the blast.
An unexpected result was that three of
the mini tags were twice detected at the
HPGR feed detection point. An explana-
tion for this is that they survived the
HPGRs and returned with the circulating
ore (screened to +5 mm).
Says Mr. Peeyush Bajpai, Vice
President, Strategic development,
Mining & Construction Technology,
Metso India, “The Smart TagTM system
offers a reliable way to track the ore from
the mine to input in the processing
circuit and thereby allows for tracking of
characteristics of the ore entering the
process line. It also helps the user to
decide operation parameters and
methodology to be planned for. Having
proven its utility in various mines around
the world, Metso offers the cumulative
experience of varied applications with in
the Smart TagTM, which is a winning
proposition for operations planning and
ore tracking.”
P R O D U C T S A N D S O L U T I O N SP R O D U C T S A N D S O L U T I O N S
Innovation at its best
Metso’s Process Technology and
Innovation group is a world leader in
mineral processing consulting. A
significant amount of this consulting
work involves Process Integration and
Optimisation (PIO) studies, which
includes investigating the effects of drill
and blast design and implementation on
downstream processing. Critical to these
studies is the ability to track specific ore
into and through the plant.
To increase the accuracy of this ore
tracking, Metso Process Technology and
Innovation (PTI) developed a system to
track ores using RFID transponders called
SmartTag™. Since its commercialisation
in 2007 SmartTag™ has been used in the
majority of PTI’s consulting projects and
several permanent systems have been
installed world wide.
The benefits of using SmartTag™
include: linking spatial mine data to time
based processing data; increased
confidence in ore blending; proactive
process changes for known ore types;
and accurate measurement of residence
times in stock piles and bins.
Since 2007 there have been significant
advancements with RFID technology that
has allowed PTI to extend the reach of
SmartTag™ beyond secondary crushing
to tertiary crushing and beyond. This has
been achieved by drastically reducing the
size of the SmartTags from a diameter of
60 mm to 20 mm. The new smaller RFID
tags have been successfully used in
several studies.
The SmartTag™ System
A SmartTag™ RFID tag travels through a
mine and mineral processing plant in a
series of simple steps. Initially, the tag and
insertion location is logged using a hand
held computer or PDA, then it is inserted
into the ore (e.g. into a blast hole). The
tag travels with the ore through digging,
transport and processing, before being
detected at detection locations (on
conveyor belts), when the time and
specific tag is recorded. The RFID tag data
is then loaded into a database and
analysed as required.
To achieve this, the SmartTag™ system
requires five main components. The first
component in the SmartTag™ system is a
PDA, which allows the initial RFID tag
insertion process to become more
efficient and accurate. Each RFID tag is
added to the database using one of three
options; it is associated with a GPS
coordinate; it is associated with a
predefined point (such as a blast hole); or
it is associated with a new point, which
can be accurately located later.
At present the system does not allow for
high precision GPS but it can locate the
nearest point in a series of predefined
points, such as blast holes, and allow the
user to associate RFID tags with these
points.
The next component in the system, the
antenna, is located at the conveyor belts.
The antenna both induces a charge on
the tag and also receives a transmitted
signal back from the tag. The design of
the antenna is decided by two param-
eters, which are its size and its robustness.
The size of the antenna dictates the size
and the strength of the field it radiates.
For this application the area of field
strong enough to charge the tag should
be as large as possible; therefore, the
antenna used for the SmartTag™ system
is the largest available for this frequency
of RFID system.
An RFID reader then decodes the signal
from the antenna and determines the ID
of the RFID tag passing the antenna. Later
versions of the readers also have
auto-tuning capabilities which ensure
that the maximum possible read distance
is achieved at all time. In the SmartTag™
system the reader then transmits the ID
using serial communications.
A data logging or buffer stage improves
the reliability of the systems and also
makes movable systems possible. The
data logger receives data directly from
the RFID reader, stores the IDs with the
time they were detected and monitors
vital system parameters, such as the
tuning state of the antenna. The data
logging stage also makes SmartTag™ less
reliant on communication links (such as
wireless) as the data is stored at the
detection point until a link is established
to the software applications. The critical
communications links, like the one
between the antenna and the reader, are
all wired and very reliable.
The core of the SmartTag™ software is an
SQL (Structured Query Language)
database. The database, located on a
dedicated server, stores all the informa-
tion about the detection points, detected
RFID tags and original locations. There are
several SmartTag™ software applications
which either input data into the database
or use the data to output information.
These include the SmartTagServer, which
reads data from the data loggers, the
SmartTagPDA, which exchanges data
with the PDAs and translates site blast
hole layout diagrams, and the Smart-
TagRes, which calculates the residence
time between two detection points.
Adding mini RFID tags
To expand the applications of SmartTag™
through and beyond secondary crushing
a mini RFID tag was required. To incorpo-
rate the mini RFID tags into the
SmartTag™ system, PTI faced two
significant challenges; firstly, the reduced
read distance, and secondly, making the
mini tags robust.
By reducing the size of the RFID tag, the
size of the antenna in the tag is also
reduced. The size of the antenna in the
tag is directly proportional to the amount
of charge that is induced, for a given field
strength. Therefore, the read range of a
tag will be reduced as the size of the tag
is reduced.
Through investigation, the 20 mm tags
were found to have an insufficient read
range for the standard SmartTag™
Peeyush Bajpai
Vice President, Strategic development,
Mining & Construction Technology,
Metso India
(12) (13)
installation. PTI trialed two methods for
fixing this issue; one method was to use
two antennas while the second method
was to place the antenna closer to the
RFID tags.
Both systems were tested at an iron ore
mine. Both approaches, dual antennas or
closer antenna distance, were found to
have similar detection capability.
However, based purely on the ease of
installation, a single antenna located
under the belt, was chosen as the new
standard installation method.
The second challenge faced when
incorporating the mini RFID tags into the
SmartTag™ system was how to protect
them sufficiently to survive a blast. A
method previously used by PTI to achieve
this was to encase the tags in a two part
epoxy. The method works well for
protecting the tags, and although it is
time consuming and expensive it is
currently the preferred method for
protecting the tags. Different encasing
materials, such as reinforced nylon, are
still being investigated.
After encasing in epoxy, the mini-tags
have a diameter of 20 mm and are
shown, with a standard SmartTag™ as
reference, in Figure 1. The size of the mini
RFID tags allows them to pass easily
through screens with apertures down to
25 mm.
Conclusions
Metso PTI has successfully incorporated a
smaller, or mini, RFID tag into their
SmartTag™ system. The changes to the
system installation are minor and increase
the reliability of the system as a whole. In
several examples the mini RFID tags have
proven to be, on average, more robust
than normal sized RFID tags.
The PTI team envisage that with the
successful incorporation of the mini RFID
tags into the SmartTag™ system it will
allow applications for the system to be
expanded. These new applications could
include a wider use in the iron ore
industry where size is the critical material
quality. PTI is now working on proving
the reliability of the next size of RFID tags,
the even smaller micro RFID tag, which
can pass through a 10 mm mesh screen.
With the decreasing size of RFID tags and
the development of SmartTag™ into a
truly distributed system, it can be
extended past the mine to cover the
whole minerals supply chain. Detection
points can now be located in the plant,
the port and even at the location of the
customer, such as a blast furnace.
Case Studies
The two case studies presented here
demonstrate applications where it is
advantageous to use the mini RFID tags
rather than the normal size RFID tags.
Case Study 1 - Secondary Crushing
Circuit
As part of a wider PIO study a secondary
crushing circuit was surveyed while
being fed with a particular ore type. To
determine the origin of the ore at any
particular time and, most importantly,
during the surveys, SmartTag™ detection
points were set up at three locations
around the circuit. The three locations
were primary crusher product, secondary
crusher feed and secondary crusher
product.
A total of 384 mini RFID tags were placed
on eight polygons (a polygon is defined
as different ore zones within the mine
block model) after the blast, the ROM pad
and trucks as they tipped ore into the
primary crusher.
Of the 384 tags placed onto either the
muck pile or on the ROM pad 45 per cent
were detected. However, if this is
compared with the percentage of each
polygon that had been excavated by the
end of the trial it is a fair conclusion that
many of the RFID tags that weren’t
detected were also not excavated during
the trial.
To determine the survival rate of the tags
during secondary crushing the number
of tags detected before and after the
secondary crusher were compared. Of
the 128 tags detected before the
secondary crusher, 97 were also detected
after secondary crushing.
However, as there were 52 tags that were
detected after the secondary crusher but
weren’t detected before the secondary
crusher, the real survival rate is difficult to
determine. By just comparing RFID tags
detected at both detection points, it can
12 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 13
be concluded that at least 76 per cent of
the mini tags survived secondary
crushing, although this number is likely to
be much higher.
The screen immediately following the
secondary crusher uses panels with 55
mm apertures and, as expected, none of
the tags were recycled back through the
secondary crusher.
The primary application for SmartTag™
was to determine the origin of the ore
being processed during the plant
surveys. In this application, where the
plant feed included ore from ROM mixing
and stock piles, SmartTag™ was essential
for determining which materials were
processed in the plant at the time of the
surveys. Mini tags were required to
enable the ore source to be tracked all
the way through secondary crushing, and
proved to be robust enough to survive
both blasting and secondary crushing.
Case Study 2 - HPGR Circuit
PTI was contracted to assess the
performance of a circuit at a mine located
in South America. The SmartTag™ system
was used in this application to allow the
PTI engineers to know exactly when a
surveyed blast was being processed. For
this reason, detection points were
located on conveyor belts carrying the
product of the primary crusher, the
output of the stock pile and the HPGR
(High Pressure Grinding Roll) feed.
As the blast was being audited RFID tags
were deposited into 68 blast holes, using
an even split of 34 normal tags and 34
mini tags. A further 50 tags were later
added into the trays of 25 trucks at the
primary crusher, using one of each of the
two different types of tags in each truck.
A total of 68 tags were identified at the
primary crusher product detection point,
23 at the stockpile output detection
point and 41 at the HPGR feed detection
point.
The blast occurred on the 22nd of
January and the excavation of the muck
pile took place between the 15th and
17th of March (two months later). The
SmartTag™ system monitored the
material passing through the process
over a period of 30 hours. During this
period, a total of 67 different tags were
detected; 33 were of normal size and 34
were mini tags.
For the stock pile and HPGR feed
detection points, the recovery was
calculated with reference to the 64
distinct RFID tags detected at the primary
crusher. Of the normal tags detected at
the primary crusher detection point, 42.4
per cent were then detected at the HPGR
feed detection point; whereas for the
mini tags 67.6 per cent of tags detected
at the primary crusher were also detected
at the HPGR feed. This shows that the
survival of the mini tags in the circuit is
higher than the normal tags. In a
hypothetical situation, where the
secondary screening mesh is smaller than
50 x 50 mm, normal tags certainly would
not reach the HPGR.
The detection of tags at the primary
crusher was also affected by the removal
of the SmartTag™ system before the
entire blast was processed (for logistical
reasons).
The tags were used to track the material
during an optimization campaign at the
plant. During the plant survey the
material that fed the plant originated
from the central portion of the blast.
An unexpected result was that three of
the mini tags were twice detected at the
HPGR feed detection point. An explana-
tion for this is that they survived the
HPGRs and returned with the circulating
ore (screened to +5 mm).
Says Mr. Peeyush Bajpai, Vice
President, Strategic development,
Mining & Construction Technology,
Metso India, “The Smart TagTM system
offers a reliable way to track the ore from
the mine to input in the processing
circuit and thereby allows for tracking of
characteristics of the ore entering the
process line. It also helps the user to
decide operation parameters and
methodology to be planned for. Having
proven its utility in various mines around
the world, Metso offers the cumulative
experience of varied applications with in
the Smart TagTM, which is a winning
proposition for operations planning and
ore tracking.”
P R O D U C T S A N D S O L U T I O N SP R O D U C T S A N D S O L U T I O N S
(14) (15)
A new titan on the rise
The C120 is a heavy duty Jaw crusher that
perfectly fits into demanding stationary
application but also meets requirements
set by mobile and portable applications.
Even at the first glance it is clear from the
C120 that Metso has paid special
attention to its new, durable and
user-friendly design, which begins with
the casting, the design of which is based
on thorough FEA and casting simulations.
Every detail of the C120 is engineered for
reliable operation and long life, resulting
in high, constant crushing capacity and
uptime.
The new C120 has been designed after
closely listening to the customer and
collected field data from a number of
sites. Based on that, Metso decided to
design the crusher cavity and kinematics
first. As a result, Metso can now offer
aggregate producers, large-scale
contracts and mining companies a new
crusher that meets all the standards set
for any demanding application.
C120 key features:
1. Outstanding productivity through
long stroke and fixed jaw die –
The outstanding productivity of the C120
is guaranteed, thanks to several new
design elements. The crusher novelty
features a long and aggressively directed
stroke, and a fixed jaw die longer than
previously seen in this crusher size class.
The C120 has a large feed opening of
1200 X 870 mm (34X47”) and an
aggressive cavity cross section, securing a
high performance and reduction ratio.
In terms of cavity volume and crusher
weight, the C120 is positioned between
the existing Metso C116 Jaw crusher and
C125 Jaw crusher models.
2. Easy to install –
The C120 is easy to install, thanks to its
compact design, and includes for
example an optional integrated motor
bed and guards. Being well-balanced, the
C120 is quick, easy and cost-efficient to
install through rubber mounted pads
underneath the crusher mounting
brackets. No separate horizontal supports
are needed. The crusher can be mounted
in multiple ways to ensure an easy fit
onto an existing or a new steel structure.
For a quick, easy and safe setting
adjustment, it is possible to select either a
mechanical or hydraulic setting
adjustment system. For Jaw dies, several
cavity options are available depending
on the customer’s performance, it is
possible to use either single – or two –
piece Jaw dies.
3. Safety is the highest priority –
The C120 features optional robust
composite flywheel guards that allow
quick and safe access to all service points.
The standard delivery includes lifting
tools for Jaw dies, cheek plates and
toggle plate, contributing to operational
safety when changing wear parts.
The Metso C120’s nominal power is
160kW (200 HP), operating speed 230
rpm, closed side setting between 70-200
mm (2 3/4” – 8”). The operational weight
is 26,000 kg (57,200 lbs), excluding
options.
Other features
1. Application flexibility –
There is an option for multiple different
level cavity options. It comes with
movable and fixed 1 piece and 2 piece
configurations. It also has 3 & 4 fixed jaw
die options. A setting adjustment system
with either mechanical or hydraulic
wedges. As a result, the setting
adjustment system is safe, easy and quick.
Three partly overlapping setting ranges
for ultimate application flexibility.
Possible to utilize all managense without
special installation or removal.
2. Strong focus on user friendliness –
Metso has made sure that with the C120,
the operation and service are safe and
easy. The durable composite guards are
used for easy and safe handling.
C120 advantages
1. Reliability –
Owing to its structural excellence it
guarantees reliability to the aggregate
producer. The material and component
selection for the C120 is designed around
the needs of the customer from a Jaw
crusher.
2. Productivity –
The C120 has been engineered on
kinematics, crusher and cavity design that
has been proven in field tests.
3. Safety –
Safety is one of the major reasons to try
the new Metso C120 Jaw crusher. Lifting
tools are delivered with the crusher as a
standard offering. With limited number of
service points, Composite guards make it
easy to open the crusher for maintenance
and services.
All in all the C120 is a Jaw crusher that
provides the user with lowest achievable
cost/ton that is safe and easy to operate.
With this kind of configuration it is hard
to go wrong. The C120 being designed
on customers’ needs, Metso’s in-house
foundry expertise and only
improvements were done without any
compromises. The C120 is a safe
investment to providing with greater
reliability and performance. The C120 is a
crusher that is safe to own and operate.
For further details contact :
Metso C120 Jaw Crusher The new face of reliability
Like all other innovations by Metso, the C120 has been designed around customer needs. Engineered
around crusher cavity and kinematics, it ensures reliable operations and a long life, for constant crushing
capacity and uptime. Read on to know more.
14 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 15
N E W A T M E T S O
(14) (15)
A new titan on the rise
The C120 is a heavy duty Jaw crusher that
perfectly fits into demanding stationary
application but also meets requirements
set by mobile and portable applications.
Even at the first glance it is clear from the
C120 that Metso has paid special
attention to its new, durable and
user-friendly design, which begins with
the casting, the design of which is based
on thorough FEA and casting simulations.
Every detail of the C120 is engineered for
reliable operation and long life, resulting
in high, constant crushing capacity and
uptime.
The new C120 has been designed after
closely listening to the customer and
collected field data from a number of
sites. Based on that, Metso decided to
design the crusher cavity and kinematics
first. As a result, Metso can now offer
aggregate producers, large-scale
contracts and mining companies a new
crusher that meets all the standards set
for any demanding application.
C120 key features:
1. Outstanding productivity through
long stroke and fixed jaw die –
The outstanding productivity of the C120
is guaranteed, thanks to several new
design elements. The crusher novelty
features a long and aggressively directed
stroke, and a fixed jaw die longer than
previously seen in this crusher size class.
The C120 has a large feed opening of
1200 X 870 mm (34X47”) and an
aggressive cavity cross section, securing a
high performance and reduction ratio.
In terms of cavity volume and crusher
weight, the C120 is positioned between
the existing Metso C116 Jaw crusher and
C125 Jaw crusher models.
2. Easy to install –
The C120 is easy to install, thanks to its
compact design, and includes for
example an optional integrated motor
bed and guards. Being well-balanced, the
C120 is quick, easy and cost-efficient to
install through rubber mounted pads
underneath the crusher mounting
brackets. No separate horizontal supports
are needed. The crusher can be mounted
in multiple ways to ensure an easy fit
onto an existing or a new steel structure.
For a quick, easy and safe setting
adjustment, it is possible to select either a
mechanical or hydraulic setting
adjustment system. For Jaw dies, several
cavity options are available depending
on the customer’s performance, it is
possible to use either single – or two –
piece Jaw dies.
3. Safety is the highest priority –
The C120 features optional robust
composite flywheel guards that allow
quick and safe access to all service points.
The standard delivery includes lifting
tools for Jaw dies, cheek plates and
toggle plate, contributing to operational
safety when changing wear parts.
The Metso C120’s nominal power is
160kW (200 HP), operating speed 230
rpm, closed side setting between 70-200
mm (2 3/4” – 8”). The operational weight
is 26,000 kg (57,200 lbs), excluding
options.
Other features
1. Application flexibility –
There is an option for multiple different
level cavity options. It comes with
movable and fixed 1 piece and 2 piece
configurations. It also has 3 & 4 fixed jaw
die options. A setting adjustment system
with either mechanical or hydraulic
wedges. As a result, the setting
adjustment system is safe, easy and quick.
Three partly overlapping setting ranges
for ultimate application flexibility.
Possible to utilize all managense without
special installation or removal.
2. Strong focus on user friendliness –
Metso has made sure that with the C120,
the operation and service are safe and
easy. The durable composite guards are
used for easy and safe handling.
C120 advantages
1. Reliability –
Owing to its structural excellence it
guarantees reliability to the aggregate
producer. The material and component
selection for the C120 is designed around
the needs of the customer from a Jaw
crusher.
2. Productivity –
The C120 has been engineered on
kinematics, crusher and cavity design that
has been proven in field tests.
3. Safety –
Safety is one of the major reasons to try
the new Metso C120 Jaw crusher. Lifting
tools are delivered with the crusher as a
standard offering. With limited number of
service points, Composite guards make it
easy to open the crusher for maintenance
and services.
All in all the C120 is a Jaw crusher that
provides the user with lowest achievable
cost/ton that is safe and easy to operate.
With this kind of configuration it is hard
to go wrong. The C120 being designed
on customers’ needs, Metso’s in-house
foundry expertise and only
improvements were done without any
compromises. The C120 is a safe
investment to providing with greater
reliability and performance. The C120 is a
crusher that is safe to own and operate.
For further details contact :
Metso C120 Jaw Crusher The new face of reliability
Like all other innovations by Metso, the C120 has been designed around customer needs. Engineered
around crusher cavity and kinematics, it ensures reliable operations and a long life, for constant crushing
capacity and uptime. Read on to know more.
14 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 15
N E W A T M E T S O
Ellipti Flo screen For high capacity, high moisture screeningRising environmental restrictions and high capacity screening requirements prompted Metso to come up
with a new screening technology that adheres to all standards and fulfill the customers need for dry screen-
ing. Metso introduces the new ELLIPTI FLO screen that allows complete dynamic process control and
ensures high capacity and high moisture dry screening.
(16) (17)
16 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 17
Demand and supply
There is an emerging demand for high
capacity dry screening with finer
separation and with high moisture
content up to 12% (a laboratory test is
required to ensure the capacity). It has
been seen that in many customer sites,
such feed material is traditionally
processed in wet process due to difficulty
in screening in rainy season.
However dry screening process means a
lower operational cost, lower capital
equipment investment for Greenfield
projects due to lack of water processing
equipment and also a shorter time to get
environmental license for new projects,
so customers always prefer dry screening.
An R&D challenge
Metso rose up to the challenge and
started R&D on finding the right kind of
solution and hence tried to understand
the moisture, acceleration, type of media
and special anti agglomeration devices
that influence the screening process.
After the results of the laboratory tests, a
prototype screen was built with self
synchronism elliptical motion with a
special feature of attack angle controlled
by encoders. The unique design of the
mechanisms with self synchronism at 45°
allows independence of encoder devices
that means no screen stoppage due to
electronic failure.
The Ellipti Flo screen is able to work with
any screening media, but due to its
combination of high acceleration and
elliptical motion, the screen is able to
perform with rigid high % open area
media without clogging, increasing the
screening capacity. Common linear
motion screens needs to operate with a
flexible media to prevent clogging.
N E W A T M E T S O
Ellipti Flo screen For high capacity, high moisture screeningRising environmental restrictions and high capacity screening requirements prompted Metso to come up
with a new screening technology that adheres to all standards and fulfill the customers need for dry screen-
ing. Metso introduces the new ELLIPTI FLO screen that allows complete dynamic process control and
ensures high capacity and high moisture dry screening.
(16) (17)
16 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 17
Demand and supply
There is an emerging demand for high
capacity dry screening with finer
separation and with high moisture
content up to 12% (a laboratory test is
required to ensure the capacity). It has
been seen that in many customer sites,
such feed material is traditionally
processed in wet process due to difficulty
in screening in rainy season.
However dry screening process means a
lower operational cost, lower capital
equipment investment for Greenfield
projects due to lack of water processing
equipment and also a shorter time to get
environmental license for new projects,
so customers always prefer dry screening.
An R&D challenge
Metso rose up to the challenge and
started R&D on finding the right kind of
solution and hence tried to understand
the moisture, acceleration, type of media
and special anti agglomeration devices
that influence the screening process.
After the results of the laboratory tests, a
prototype screen was built with self
synchronism elliptical motion with a
special feature of attack angle controlled
by encoders. The unique design of the
mechanisms with self synchronism at 45°
allows independence of encoder devices
that means no screen stoppage due to
electronic failure.
The Ellipti Flo screen is able to work with
any screening media, but due to its
combination of high acceleration and
elliptical motion, the screen is able to
perform with rigid high % open area
media without clogging, increasing the
screening capacity. Common linear
motion screens needs to operate with a
flexible media to prevent clogging.
N E W A T M E T S O
(18) (19)
18 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 19
As EF screen has an elliptical “anti-clogging” motion, the Metso
special % open area media, called Hiper Flow, is the right
combination to optimize the screening performance. Higher % of
open area is possible when using rigid polyurethane media, as the
membrane doesn’t need to support secondary vibration.
After a large number of tests during the rainy season, the prototype
screen process tests completed. One of the customers from South
America confirmed that the EF screen surpassed the performance
of the Banana linear motion screen, conventional circular screen
and also roller screens.
Hence the new unique high acceleration, stroke control, elliptical
motion screen was baptized as ELLIPTIFLO screen.
Arup Raha
Deputy General Manager -
Product Support -
Vibrating Screens, Metso India
Amit Mishra
Manager Sales-
Vibrating Screens
Metso India
Design concept
The introduction of Ellipti Flo Screen has
not only widened the gamut of the
product line but also has performed in a
much more satisfactory way in a number
of ways as compared to conventional
screens. The concept behind the design
of the ELLIPTI FLO is as follows:
• The Roller bearings are a limitation for
large screen design (larger than 3m wide)
with exciters assembled in the side plate.
• The successful bronze bushing
technology of cone crusher was
borrowed to build a powerful bronze
bushing exciter.
• The elliptical motion together with a
high acceleration (5G) assured a blinding
and clogging free media operation, even
for rigid wire media.
Features of the ELLIPTI FLO screen
1. Upto 30% more capacity compared to
conventional screens.
2. Process control: 30 to 60° stroke angle
and 4 to 5 G acceleration
3. Elliptical motion to provide low
clogging and blinding tendency
4. Lifetime bronze bushing exciter for
large screens
5. Designed to work with wide range of
Metso Trellex media ( Polyurethane,
rubber or wire mesh)
The EF screen advantage
I. Motion Control
Smart Speed System
• Electronic control by encoders
• Changing the attack angle it is
possible to control time of material over
the deck
• Natural synchronization at 45°. No risk
to stop the screen due to encoder failure.
II. Stroke control use for high moisture
ore
Non agglomerated ore
• Easy screening
• Working angle of 40 to 35°
• Optimized capacity
Agglomerated ore
• Difficulty screening
• Working angle of 50 to 60°
• Optimized efficiency (more screening
time)
A notch higher at lesser cost
Metso believes in surpassing its own
benchmarks. Metso’s Banana screen is
one such benchmark product for
screening fines. Now Metso has
surpassed that and has come up with the
EF screen for fine screening.
Comparison of Total weights of MF
and EF screen
MF 2461 -2 (8’ x 20’ DD) – 18385 kg
EF 2461 -2 (8’ x 20’ DD) – 15812 kg
The Ellipto Flo Screens can also
replace the Banana Screens for
product screening for dry application
where the capacity requirement is very
high , moisture is high and finer
separation is required .
A very large Banana can be replaced
with a moderate size Ellipto Flo Screen
and thus saving the structural and
engineering cost besides performing
better in the high moisture.
N E W A T M E T S O N E W A T M E T S O
40°35°
50°60°
Conclusion
• Elliptical motion is the best one for rigid wire media.
• It combines the high capacity, high efficiency (no clogging tendency) and allows working in any deck angle
Trellex LS
HiPer Flow
1176 holes (FR8)
resulting in an
effective open
area of 41,1%
Trellex LS (Standard)
880 holes (FR8) resulting in an effective open area of 30.8%
(18) (19)
18 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 19
As EF screen has an elliptical “anti-clogging” motion, the Metso
special % open area media, called Hiper Flow, is the right
combination to optimize the screening performance. Higher % of
open area is possible when using rigid polyurethane media, as the
membrane doesn’t need to support secondary vibration.
After a large number of tests during the rainy season, the prototype
screen process tests completed. One of the customers from South
America confirmed that the EF screen surpassed the performance
of the Banana linear motion screen, conventional circular screen
and also roller screens.
Hence the new unique high acceleration, stroke control, elliptical
motion screen was baptized as ELLIPTIFLO screen.
Arup Raha
Deputy General Manager -
Product Support -
Vibrating Screens, Metso India
Amit Mishra
Manager Sales-
Vibrating Screens
Metso India
Design concept
The introduction of Ellipti Flo Screen has
not only widened the gamut of the
product line but also has performed in a
much more satisfactory way in a number
of ways as compared to conventional
screens. The concept behind the design
of the ELLIPTI FLO is as follows:
• The Roller bearings are a limitation for
large screen design (larger than 3m wide)
with exciters assembled in the side plate.
• The successful bronze bushing
technology of cone crusher was
borrowed to build a powerful bronze
bushing exciter.
• The elliptical motion together with a
high acceleration (5G) assured a blinding
and clogging free media operation, even
for rigid wire media.
Features of the ELLIPTI FLO screen
1. Upto 30% more capacity compared to
conventional screens.
2. Process control: 30 to 60° stroke angle
and 4 to 5 G acceleration
3. Elliptical motion to provide low
clogging and blinding tendency
4. Lifetime bronze bushing exciter for
large screens
5. Designed to work with wide range of
Metso Trellex media ( Polyurethane,
rubber or wire mesh)
The EF screen advantage
I. Motion Control
Smart Speed System
• Electronic control by encoders
• Changing the attack angle it is
possible to control time of material over
the deck
• Natural synchronization at 45°. No risk
to stop the screen due to encoder failure.
II. Stroke control use for high moisture
ore
Non agglomerated ore
• Easy screening
• Working angle of 40 to 35°
• Optimized capacity
Agglomerated ore
• Difficulty screening
• Working angle of 50 to 60°
• Optimized efficiency (more screening
time)
A notch higher at lesser cost
Metso believes in surpassing its own
benchmarks. Metso’s Banana screen is
one such benchmark product for
screening fines. Now Metso has
surpassed that and has come up with the
EF screen for fine screening.
Comparison of Total weights of MF
and EF screen
MF 2461 -2 (8’ x 20’ DD) – 18385 kg
EF 2461 -2 (8’ x 20’ DD) – 15812 kg
The Ellipto Flo Screens can also
replace the Banana Screens for
product screening for dry application
where the capacity requirement is very
high , moisture is high and finer
separation is required .
A very large Banana can be replaced
with a moderate size Ellipto Flo Screen
and thus saving the structural and
engineering cost besides performing
better in the high moisture.
N E W A T M E T S O N E W A T M E T S O
40°35°
50°60°
Conclusion
• Elliptical motion is the best one for rigid wire media.
• It combines the high capacity, high efficiency (no clogging tendency) and allows working in any deck angle
Trellex LS
HiPer Flow
1176 holes (FR8)
resulting in an
effective open
area of 41,1%
Trellex LS (Standard)
880 holes (FR8) resulting in an effective open area of 30.8%
(20) (21)
20 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 21
upon Tata Steel’s current requirement of
ore transportation from one of their
deposits into the plant. The topic was
well received with questions on
anticipated transportation issues and the
technology on offer.
Dusty Jacobson ( Applications Manager ,
large mining crushers, Metso York ) and
Subhas Hazra (Senior Product Manager ,
Grinding Mills , Metso York) spoke on
‘Optimized solutions on crushing and
milling tehcnologies’ . Dusty shared his
experience in optimized solutions in
mining crushers and Subhas spoke on
optimized solutions in grinding.
In the end, Peeyush Bajpai enlightened
the audience on Metso’s service offerings
and and our ‘hands on’ experience with
proprietary equipment and their
applications at the clients‘ sites.
Our speakers cited examples from across
the globe, which best highlighted our
customer’s positive experiences with our
machines. The interest of the customers
was substantiated by the response and
queries which we generated after the
session.
Our guests were also invited to a light
entertainment program and dinner
during which they had an opportunity to
interact with our global experts in person
for their queries and requirements.
In all, we were successful in achieving our
objective of bringing our ‘comprehensive
mining’ solutions portfolio to a key
account like Tata Steel and the client
could also benefit from the ‘One Metso’
outlook that we had on display.
Sudhir KamathDeputy General Manager,
Mining Sales, Equipment & Systems,
Metso India
Global experts introduce Metso’s comprehensive mining solutions to Tata Steel Limited A conclave was organized on 13th December, 2011, in Jamshedpur; where Metso showcased its comprehensive
mining solutions to Tata Steel. Around 60 people from Tata Steel attended the conclave, during which
global experts interacted with the customer and explained our world class mining solutions.
The conclave was opened by Kamal
Pahuja (Vice President, Mining and
Construction Technology, India) who
gave a brief introduction of the speakers,
followed by Sudhir Srivastava (Senior Vice
President , Mining and Construction
Technology , Asia Pacific) who presented
an overview of Metso Corporation and its
presence across the globe. Sudhir’s
speech was followed by Heikki
Hartikainen (Manager Product Training ,
beneficiation systems, Metso Sala ,
Sweden ) who presented Metso’s
involvement in ore beneficiation.
Considering the three beneficiation
plants envisaged at Tata Steel during
2012, it was a subject which generated
interest and was appropriate for the forum.
This was followed by a presentation from
Graham Gilliam ( Sales and Service
Manager , Cable belt conveyors, BMH ,
Metso UK ) who spoke on Cable belt
conveyors, wherein emphasis was laid
N E W S I N B R I E F
(20) (21)
20 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 21
upon Tata Steel’s current requirement of
ore transportation from one of their
deposits into the plant. The topic was
well received with questions on
anticipated transportation issues and the
technology on offer.
Dusty Jacobson ( Applications Manager ,
large mining crushers, Metso York ) and
Subhas Hazra (Senior Product Manager ,
Grinding Mills , Metso York) spoke on
‘Optimized solutions on crushing and
milling tehcnologies’ . Dusty shared his
experience in optimized solutions in
mining crushers and Subhas spoke on
optimized solutions in grinding.
In the end, Peeyush Bajpai enlightened
the audience on Metso’s service offerings
and and our ‘hands on’ experience with
proprietary equipment and their
applications at the clients‘ sites.
Our speakers cited examples from across
the globe, which best highlighted our
customer’s positive experiences with our
machines. The interest of the customers
was substantiated by the response and
queries which we generated after the
session.
Our guests were also invited to a light
entertainment program and dinner
during which they had an opportunity to
interact with our global experts in person
for their queries and requirements.
In all, we were successful in achieving our
objective of bringing our ‘comprehensive
mining’ solutions portfolio to a key
account like Tata Steel and the client
could also benefit from the ‘One Metso’
outlook that we had on display.
Sudhir KamathDeputy General Manager,
Mining Sales, Equipment & Systems,
Metso India
Global experts introduce Metso’s comprehensive mining solutions to Tata Steel Limited A conclave was organized on 13th December, 2011, in Jamshedpur; where Metso showcased its comprehensive
mining solutions to Tata Steel. Around 60 people from Tata Steel attended the conclave, during which
global experts interacted with the customer and explained our world class mining solutions.
The conclave was opened by Kamal
Pahuja (Vice President, Mining and
Construction Technology, India) who
gave a brief introduction of the speakers,
followed by Sudhir Srivastava (Senior Vice
President , Mining and Construction
Technology , Asia Pacific) who presented
an overview of Metso Corporation and its
presence across the globe. Sudhir’s
speech was followed by Heikki
Hartikainen (Manager Product Training ,
beneficiation systems, Metso Sala ,
Sweden ) who presented Metso’s
involvement in ore beneficiation.
Considering the three beneficiation
plants envisaged at Tata Steel during
2012, it was a subject which generated
interest and was appropriate for the forum.
This was followed by a presentation from
Graham Gilliam ( Sales and Service
Manager , Cable belt conveyors, BMH ,
Metso UK ) who spoke on Cable belt
conveyors, wherein emphasis was laid
N E W S I N B R I E F
Slag is a vitreous mass left as a residue by the smelting of metallic ore. Due to presence of un-crushable
metallic residue, slag cannot be crushed by regular crushers. It requires modifications in the regular crusher
to crush the slag. New technology known as the Active Setting Control from Metso has eased the mecha-
nism of such tedious crushing and can be adjusted with the Metso Jaw crusher to give effective results.
Read on to know more.
Slag crushing technology from Metso
(22) (23)
Alok Jha
General Manager, CSR,
Operations, Metso India
determined by local market needs. The
metallics can be returned to the mill or
brokered for sale. The slag products are
marketed for various construction
purposes depending on its nature.
Modern slag uses
Depending upon nature of Slag i.e. its
mineral composition, mineral
composition, physical strength it can be
used for suitable purposes. For example
some Blast Furnace slag have
cementitious property, hence it can be
grounded and granulated and used in
concrete in combination with Portland
cement as part of a blended cement.
Ground granulated slag reacts with water
to produce cementitious properties.
Concrete containing ground granulated
slag develops strength over a longer
period, leading to reduced permeability
and better durability. Since the unit
volume of Portland cement is reduced,
this concrete is less vulnerable to
alkali-silica and attack.
The slag can also be used to create fibers
which can be used as an insulation
material named slag wool.
If the slag posseses good strength and is
inert in nature it can be used as
aggregate in road building activity. It can
also be used in base layer or mixed with
other cementitious material like asphalt
or cement and can be used in various
Macadam layers used in laying a road.
While some other kind of slag may
contain solid pieces of metal which
sometimes are left behind in process of
smelting. Slag also needs to re processed
to extract more of these metallics.
Metso solution for slag crushing
The metallics in the slag pose the biggest
challenge for the crushing of slag as
these can be of very high strength and
are uncrushable in nature. It is
recommended that as much as of these
metallics should be removed before
being fed into any crusher. Multiple
magnetic separators like magnetic pulley,
overhead band magnet etc should be
placed before each and every crusher
even in a multi stage crushing, so that
maximum metallics are recovered and
also amount of uncrushable particles
entering any crusher is minimized.
22 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 23
What is Slag?
In nature, the ores of metals such as iron,
copper, lead, aluminium and other metals
are found in impure states, often oxidized
and mixed in with silicates of other metals.
During smelting, when the ore is exposed
to high temperatures, these impurities are
separated from the molten metal and can
be removed. The collection of compounds
that is removed is the slag. Slag is a partially
vitreous by-product of smelting ore to
separate the metal fraction from the
unwanted fraction. It can usually be
considered to be a mixture of metal oxides
and silicon dioxide. However, slag can
contain metal compounds and even metal
in the metallic form. While slag generally
comes out as a waste in metal smelting
process, it can also serve other purposes as
it contains valuable metal compounds &
metals itself. Slag can also be used as
aggregate in construction industry or they
can be processed again to recover more of
metal or useful minerals from it.
Once the slag has cooled sufficiently, it is
processed through a slag plant to remove
recoverable metallics and to size the slag
into various products, which are
C Jaw with ASC forms the primary
crusher in any slag crushing plant and
will reduce boulders to predominantly
-80mm lumps. If process demands that
these lumps be further crushed down to
still smaller particles Metso offers
Nordberg HP Cone Crusher technology
which are well suited for crushing lumps
with some amount of uncrushable
“tramp” steel pieces.
Boulders of slag when crushed in a C Jaw
Crusher with ASC will break down and
metallic pieces will be liberated from
them hence it will again be advised to
put in place multiple magnetic separators
before HP Cone crusher.
The Tramp release system of HP Cone
crusher are the best available technology
to handle the metallics present in Slag
feed.
HP Cone crusher will further reduce the
lumps to predominantly -30mm lumps
which can be screened to specific sizes
so that the waste Slag is converted into
useful aggregate etc. This stage of
crushing will further liberate more
metallics which can be extracted. In case
process requires that it is further ground
into still finer particles Metso brings in
another of its technology suitable to
further crush these very abrasive Slag
with maximum ease, viz Barmac VSI.
Barmac VSI acts like an Autogenous Mill.
The conventional Barmac VSI rotor can be
dressed with highly abrasion resistant
parts like:
- Tungsten Distributor Plate
- Tungsten Trail Plate
- Laminated Tip Sets
- Lipped upper & lower wear plates
These offer maximum rotor protection
against hard and abrasive Slag particles.
Features and benefits
1. Release function –
• In an overload situation the pressure
relief valves lets the oil escape from the
hydraulic cylinders to the tank
releasing the setting.
• No down time because of toggle plate
bending
• Ability to go extreme applications
concerning steel.
2. Recovery function –
• Returns the setting back to normal
after release
• Optional in stationary applications and
standard in an LT
• Ensures constant end product
recovery function in a stationary
application
• The recovery function is handled
through the IC1000 automation
control system
• In an overload situation the oil escapes
to a tank and the IC 1000 returns it to
the cylinders until the setting has
returned to the target level
• The setting is adjusted by means of an
ultrasonic sensor connected to the
IC 1000
• In C-Jaw applications with the IC1000
the opening pressure is 300 bar (4350
PSI) which means that the whole
setting range can be utilised
recovery function in a LT
• The recovery function is handled
through the IC controls
• In an overload situation the oil escapes
to a tank and the IC returns it to the
target level.
Active Setting Control (ASC)Operating principle
3 integrated cylinders
Overload returns to tank
Overload to accumulator
Recovery to cylinders
To tank
To accumulator
To tank
No wedges, cylinders adjust the setting!
Yet it is never possible to ensure 100%
removal of large or small solid metallic
pieces which are uncrushable and pose
serious danger to the health of crusher
and if they report to cavity of crusher will
lead to lengthy & costly breakdown.
To take care of this tough application
Metso has taken up this challenge and
has designed crushers specifically meant
for our customer who are involved in
business of Slag crushing and processing.
The most significant product in this niche
range is C jaws with “Active setting
Control” technology.
Active Setting Control
The Active Setting Control is a new
system that acts as a setting adjustment
system and releases the crusher cavity to
open in the event of hitting
non-crushable, oversized material.
The Active Control System is based on
three hydraulic cylinders and an
ultrasonic sensor attached to the rear of
the crusher. In cases where
non-crushable material like a piece of
iron enters the crushing cavity and
generates a high pressure, the relief valve
is opened and releases the hydraulic oil
from the cylinders.
Active Setting Control adjustment is used
basically in the same way as the hydraulic
wedge setting adjustment. The system is
powered with an independent hydraulic
unit, or it can be connected to a large
hydraulic system, as in the Lokotrack.
When the setting of the jaw is adjusted
the hydraulic oil flow moves the pistons
in the ASC cylinders in and out, which
increases and decreases the crusher
setting respectively. Pressure relief valves
hold the oil in the cylinders when the
setting is not adjusted which in turn hold
the setting of the jaw constant.
The Active Setting Control also functions
as a safety device. If there are any
uncrushable objects in the jaw cavity, the
pressure in the cylinders rises. When the
pressure rises over a pre-set value, the
pressure relief valves open and let the
piston move in. The crusher setting opens
and the uncrushable material can exit the
jaw cavity.
The active setting control works as a
safety device only throughout the
adjustment range of the cylinders. If the
uncrushable object is larger than the
maximum physical setting, the toggle
plate gives up through elastic buckling.
Main Components & Operating
Principle
Setting is adjusted by increasing or
decreasing the oil volume in the
cylinders. There is no adjustment wedges.
Instead of wedges there are three
hydraulic cylinders.
In an overload situation (when the
pressure exceeds the limit value) the
pressure relief valves lets the oil escape
from the hydraulic cylinders to the oil
tank releasing the setting. This decreases
down time caused by toggle plate
bending and increases ability to go to
extreme applications concerning steel.
• The setting is adjusted by means of an
ultrasonic sensor connected to the IC.
• In LT applications the opening
pressure is 300 bar (4350 PSI) which
means that the whole setting range
can be utilised.
3. Operating principle –
(i) Stationary application –
• Release function as standard
• Recovery function as an option
optional recovery function taken care
of by IC1000
(ii) LT application –
• Release function as standard
• Recovery function as standard
Recovery function handled through
the IC controls (Ultrasonic sensor)
• Opening pressure > 300 bar
• The whole setting range can be
utilized
Applications
• Recycling applications
• Slag
• Applications with relatively big
uncrushable particles (up to the size of
the largest allowed c.s.s. of the crusher)
Availability
• C96/LT96
• C106/LT106
• Possible other models in the future viz
C120, etc.
P R O D U C T S A N D S O L U T I O N SP R O D U C T S A N D S O L U T I O N S
Slag is a vitreous mass left as a residue by the smelting of metallic ore. Due to presence of un-crushable
metallic residue, slag cannot be crushed by regular crushers. It requires modifications in the regular crusher
to crush the slag. New technology known as the Active Setting Control from Metso has eased the mecha-
nism of such tedious crushing and can be adjusted with the Metso Jaw crusher to give effective results.
Read on to know more.
Slag crushing technology from Metso
(22) (23)
Alok Jha
General Manager, CSR,
Operations, Metso India
determined by local market needs. The
metallics can be returned to the mill or
brokered for sale. The slag products are
marketed for various construction
purposes depending on its nature.
Modern slag uses
Depending upon nature of Slag i.e. its
mineral composition, mineral
composition, physical strength it can be
used for suitable purposes. For example
some Blast Furnace slag have
cementitious property, hence it can be
grounded and granulated and used in
concrete in combination with Portland
cement as part of a blended cement.
Ground granulated slag reacts with water
to produce cementitious properties.
Concrete containing ground granulated
slag develops strength over a longer
period, leading to reduced permeability
and better durability. Since the unit
volume of Portland cement is reduced,
this concrete is less vulnerable to
alkali-silica and attack.
The slag can also be used to create fibers
which can be used as an insulation
material named slag wool.
If the slag posseses good strength and is
inert in nature it can be used as
aggregate in road building activity. It can
also be used in base layer or mixed with
other cementitious material like asphalt
or cement and can be used in various
Macadam layers used in laying a road.
While some other kind of slag may
contain solid pieces of metal which
sometimes are left behind in process of
smelting. Slag also needs to re processed
to extract more of these metallics.
Metso solution for slag crushing
The metallics in the slag pose the biggest
challenge for the crushing of slag as
these can be of very high strength and
are uncrushable in nature. It is
recommended that as much as of these
metallics should be removed before
being fed into any crusher. Multiple
magnetic separators like magnetic pulley,
overhead band magnet etc should be
placed before each and every crusher
even in a multi stage crushing, so that
maximum metallics are recovered and
also amount of uncrushable particles
entering any crusher is minimized.
22 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 23
What is Slag?
In nature, the ores of metals such as iron,
copper, lead, aluminium and other metals
are found in impure states, often oxidized
and mixed in with silicates of other metals.
During smelting, when the ore is exposed
to high temperatures, these impurities are
separated from the molten metal and can
be removed. The collection of compounds
that is removed is the slag. Slag is a partially
vitreous by-product of smelting ore to
separate the metal fraction from the
unwanted fraction. It can usually be
considered to be a mixture of metal oxides
and silicon dioxide. However, slag can
contain metal compounds and even metal
in the metallic form. While slag generally
comes out as a waste in metal smelting
process, it can also serve other purposes as
it contains valuable metal compounds &
metals itself. Slag can also be used as
aggregate in construction industry or they
can be processed again to recover more of
metal or useful minerals from it.
Once the slag has cooled sufficiently, it is
processed through a slag plant to remove
recoverable metallics and to size the slag
into various products, which are
C Jaw with ASC forms the primary
crusher in any slag crushing plant and
will reduce boulders to predominantly
-80mm lumps. If process demands that
these lumps be further crushed down to
still smaller particles Metso offers
Nordberg HP Cone Crusher technology
which are well suited for crushing lumps
with some amount of uncrushable
“tramp” steel pieces.
Boulders of slag when crushed in a C Jaw
Crusher with ASC will break down and
metallic pieces will be liberated from
them hence it will again be advised to
put in place multiple magnetic separators
before HP Cone crusher.
The Tramp release system of HP Cone
crusher are the best available technology
to handle the metallics present in Slag
feed.
HP Cone crusher will further reduce the
lumps to predominantly -30mm lumps
which can be screened to specific sizes
so that the waste Slag is converted into
useful aggregate etc. This stage of
crushing will further liberate more
metallics which can be extracted. In case
process requires that it is further ground
into still finer particles Metso brings in
another of its technology suitable to
further crush these very abrasive Slag
with maximum ease, viz Barmac VSI.
Barmac VSI acts like an Autogenous Mill.
The conventional Barmac VSI rotor can be
dressed with highly abrasion resistant
parts like:
- Tungsten Distributor Plate
- Tungsten Trail Plate
- Laminated Tip Sets
- Lipped upper & lower wear plates
These offer maximum rotor protection
against hard and abrasive Slag particles.
Features and benefits
1. Release function –
• In an overload situation the pressure
relief valves lets the oil escape from the
hydraulic cylinders to the tank
releasing the setting.
• No down time because of toggle plate
bending
• Ability to go extreme applications
concerning steel.
2. Recovery function –
• Returns the setting back to normal
after release
• Optional in stationary applications and
standard in an LT
• Ensures constant end product
recovery function in a stationary
application
• The recovery function is handled
through the IC1000 automation
control system
• In an overload situation the oil escapes
to a tank and the IC 1000 returns it to
the cylinders until the setting has
returned to the target level
• The setting is adjusted by means of an
ultrasonic sensor connected to the
IC 1000
• In C-Jaw applications with the IC1000
the opening pressure is 300 bar (4350
PSI) which means that the whole
setting range can be utilised
recovery function in a LT
• The recovery function is handled
through the IC controls
• In an overload situation the oil escapes
to a tank and the IC returns it to the
target level.
Active Setting Control (ASC)Operating principle
3 integrated cylinders
Overload returns to tank
Overload to accumulator
Recovery to cylinders
To tank
To accumulator
To tank
No wedges, cylinders adjust the setting!
Yet it is never possible to ensure 100%
removal of large or small solid metallic
pieces which are uncrushable and pose
serious danger to the health of crusher
and if they report to cavity of crusher will
lead to lengthy & costly breakdown.
To take care of this tough application
Metso has taken up this challenge and
has designed crushers specifically meant
for our customer who are involved in
business of Slag crushing and processing.
The most significant product in this niche
range is C jaws with “Active setting
Control” technology.
Active Setting Control
The Active Setting Control is a new
system that acts as a setting adjustment
system and releases the crusher cavity to
open in the event of hitting
non-crushable, oversized material.
The Active Control System is based on
three hydraulic cylinders and an
ultrasonic sensor attached to the rear of
the crusher. In cases where
non-crushable material like a piece of
iron enters the crushing cavity and
generates a high pressure, the relief valve
is opened and releases the hydraulic oil
from the cylinders.
Active Setting Control adjustment is used
basically in the same way as the hydraulic
wedge setting adjustment. The system is
powered with an independent hydraulic
unit, or it can be connected to a large
hydraulic system, as in the Lokotrack.
When the setting of the jaw is adjusted
the hydraulic oil flow moves the pistons
in the ASC cylinders in and out, which
increases and decreases the crusher
setting respectively. Pressure relief valves
hold the oil in the cylinders when the
setting is not adjusted which in turn hold
the setting of the jaw constant.
The Active Setting Control also functions
as a safety device. If there are any
uncrushable objects in the jaw cavity, the
pressure in the cylinders rises. When the
pressure rises over a pre-set value, the
pressure relief valves open and let the
piston move in. The crusher setting opens
and the uncrushable material can exit the
jaw cavity.
The active setting control works as a
safety device only throughout the
adjustment range of the cylinders. If the
uncrushable object is larger than the
maximum physical setting, the toggle
plate gives up through elastic buckling.
Main Components & Operating
Principle
Setting is adjusted by increasing or
decreasing the oil volume in the
cylinders. There is no adjustment wedges.
Instead of wedges there are three
hydraulic cylinders.
In an overload situation (when the
pressure exceeds the limit value) the
pressure relief valves lets the oil escape
from the hydraulic cylinders to the oil
tank releasing the setting. This decreases
down time caused by toggle plate
bending and increases ability to go to
extreme applications concerning steel.
• The setting is adjusted by means of an
ultrasonic sensor connected to the IC.
• In LT applications the opening
pressure is 300 bar (4350 PSI) which
means that the whole setting range
can be utilised.
3. Operating principle –
(i) Stationary application –
• Release function as standard
• Recovery function as an option
optional recovery function taken care
of by IC1000
(ii) LT application –
• Release function as standard
• Recovery function as standard
Recovery function handled through
the IC controls (Ultrasonic sensor)
• Opening pressure > 300 bar
• The whole setting range can be
utilized
Applications
• Recycling applications
• Slag
• Applications with relatively big
uncrushable particles (up to the size of
the largest allowed c.s.s. of the crusher)
Availability
• C96/LT96
• C106/LT106
• Possible other models in the future viz
C120, etc.
P R O D U C T S A N D S O L U T I O N SP R O D U C T S A N D S O L U T I O N S
determined by local market needs. The
metallics can be returned to the mill or
brokered for sale. The slag products are
marketed for various construction
purposes depending on its nature.
Modern slag uses
Depending upon nature of Slag i.e. its
mineral composition, mineral
composition, physical strength it can be
used for suitable purposes. For example
some Blast Furnace slag have
cementitious property, hence it can be
grounded and granulated and used in
concrete in combination with Portland
cement as part of a blended cement.
Ground granulated slag reacts with water
to produce cementitious properties.
Concrete containing ground granulated
slag develops strength over a longer
period, leading to reduced permeability
and better durability. Since the unit
volume of Portland cement is reduced,
this concrete is less vulnerable to
alkali-silica and attack.
The slag can also be used to create fibers
which can be used as an insulation
material named slag wool.
If the slag posseses good strength and is
inert in nature it can be used as
aggregate in road building activity. It can
also be used in base layer or mixed with
other cementitious material like asphalt
or cement and can be used in various
Macadam layers used in laying a road.
While some other kind of slag may
contain solid pieces of metal which
sometimes are left behind in process of
smelting. Slag also needs to re processed
to extract more of these metallics.
Metso solution for slag crushing
The metallics in the slag pose the biggest
challenge for the crushing of slag as
these can be of very high strength and
are uncrushable in nature. It is
recommended that as much as of these
metallics should be removed before
being fed into any crusher. Multiple
magnetic separators like magnetic pulley,
overhead band magnet etc should be
placed before each and every crusher
even in a multi stage crushing, so that
maximum metallics are recovered and
also amount of uncrushable particles
entering any crusher is minimized.
What is Slag?
In nature, the ores of metals such as iron,
copper, lead, aluminium and other metals
are found in impure states, often oxidized
and mixed in with silicates of other metals.
During smelting, when the ore is exposed
to high temperatures, these impurities are
separated from the molten metal and can
be removed. The collection of compounds
that is removed is the slag. Slag is a partially
vitreous by-product of smelting ore to
separate the metal fraction from the
unwanted fraction. It can usually be
considered to be a mixture of metal oxides
and silicon dioxide. However, slag can
contain metal compounds and even metal
in the metallic form. While slag generally
comes out as a waste in metal smelting
process, it can also serve other purposes as
it contains valuable metal compounds &
metals itself. Slag can also be used as
aggregate in construction industry or they
can be processed again to recover more of
metal or useful minerals from it.
Once the slag has cooled sufficiently, it is
processed through a slag plant to remove
recoverable metallics and to size the slag
into various products, which are
(24) (25)
Amol Sinha
Manager - Applications,
CSR, Metso India
C Jaw with ASC forms the primary
crusher in any slag crushing plant and
will reduce boulders to predominantly
-80mm lumps. If process demands that
these lumps be further crushed down to
still smaller particles Metso offers
Nordberg HP Cone Crusher technology
which are well suited for crushing lumps
with some amount of uncrushable
“tramp” steel pieces.
Boulders of slag when crushed in a C Jaw
Crusher with ASC will break down and
metallic pieces will be liberated from
them hence it will again be advised to
put in place multiple magnetic separators
before HP Cone crusher.
The Tramp release system of HP Cone
crusher are the best available technology
to handle the metallics present in Slag
feed.
HP Cone crusher will further reduce the
lumps to predominantly -30mm lumps
which can be screened to specific sizes
so that the waste Slag is converted into
useful aggregate etc. This stage of
crushing will further liberate more
metallics which can be extracted. In case
process requires that it is further ground
into still finer particles Metso brings in
another of its technology suitable to
further crush these very abrasive Slag
with maximum ease, viz Barmac VSI.
Barmac VSI acts like an Autogenous Mill.
The conventional Barmac VSI rotor can be
dressed with highly abrasion resistant
parts like:
- Tungsten Distributor Plate
- Tungsten Trail Plate
- Laminated Tip Sets
- Lipped upper & lower wear plates
These offer maximum rotor protection
against hard and abrasive Slag particles.
Features and benefits
1. Release function –
• In an overload situation the pressure
relief valves lets the oil escape from the
hydraulic cylinders to the tank
releasing the setting.
• No down time because of toggle plate
bending
• Ability to go extreme applications
concerning steel.
2. Recovery function –
• Returns the setting back to normal
after release
• Optional in stationary applications and
standard in an LT
• Ensures constant end product
recovery function in a stationary
application
• The recovery function is handled
through the IC1000 automation
control system
• In an overload situation the oil escapes
to a tank and the IC 1000 returns it to
the cylinders until the setting has
returned to the target level
• The setting is adjusted by means of an
ultrasonic sensor connected to the
IC 1000
• In C-Jaw applications with the IC1000
the opening pressure is 300 bar (4350
PSI) which means that the whole
setting range can be utilised
recovery function in a LT
• The recovery function is handled
through the IC controls
• In an overload situation the oil escapes
to a tank and the IC returns it to the
target level.
24 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 25
Yet it is never possible to ensure 100%
removal of large or small solid metallic
pieces which are uncrushable and pose
serious danger to the health of crusher
and if they report to cavity of crusher will
lead to lengthy & costly breakdown.
To take care of this tough application
Metso has taken up this challenge and
has designed crushers specifically meant
for our customer who are involved in
business of Slag crushing and processing.
The most significant product in this niche
range is C jaws with “Active setting
Control” technology.
Active Setting Control
The Active Setting Control is a new
system that acts as a setting adjustment
system and releases the crusher cavity to
open in the event of hitting
non-crushable, oversized material.
The Active Control System is based on
three hydraulic cylinders and an
ultrasonic sensor attached to the rear of
the crusher. In cases where
non-crushable material like a piece of
iron enters the crushing cavity and
generates a high pressure, the relief valve
is opened and releases the hydraulic oil
from the cylinders.
Active Setting Control adjustment is used
basically in the same way as the hydraulic
wedge setting adjustment. The system is
powered with an independent hydraulic
unit, or it can be connected to a large
hydraulic system, as in the Lokotrack.
When the setting of the jaw is adjusted
the hydraulic oil flow moves the pistons
in the ASC cylinders in and out, which
increases and decreases the crusher
setting respectively. Pressure relief valves
hold the oil in the cylinders when the
setting is not adjusted which in turn hold
the setting of the jaw constant.
The Active Setting Control also functions
as a safety device. If there are any
uncrushable objects in the jaw cavity, the
pressure in the cylinders rises. When the
pressure rises over a pre-set value, the
pressure relief valves open and let the
piston move in. The crusher setting opens
and the uncrushable material can exit the
jaw cavity.
The active setting control works as a
safety device only throughout the
adjustment range of the cylinders. If the
uncrushable object is larger than the
maximum physical setting, the toggle
plate gives up through elastic buckling.
Main Components & Operating
Principle
Setting is adjusted by increasing or
decreasing the oil volume in the
cylinders. There is no adjustment wedges.
Instead of wedges there are three
hydraulic cylinders.
In an overload situation (when the
pressure exceeds the limit value) the
pressure relief valves lets the oil escape
from the hydraulic cylinders to the oil
tank releasing the setting. This decreases
down time caused by toggle plate
bending and increases ability to go to
extreme applications concerning steel.
• The setting is adjusted by means of an
ultrasonic sensor connected to the IC.
• In LT applications the opening
pressure is 300 bar (4350 PSI) which
means that the whole setting range
can be utilised.
3. Operating principle –
(i) Stationary application –
• Release function as standard
• Recovery function as an option
optional recovery function taken care
of by IC1000
(ii) LT application –
• Release function as standard
• Recovery function as standard
Recovery function handled through
the IC controls (Ultrasonic sensor)
• Opening pressure > 300 bar
• The whole setting range can be
utilized
Applications
• Recycling applications
• Slag
• Applications with relatively big
uncrushable particles (up to the size of
the largest allowed c.s.s. of the crusher)
Availability
• C96/LT96
• C106/LT106
• Possible other models in the future viz
C120, etc.
P R O D U C T S A N D S O L U T I O N SP R O D U C T S A N D S O L U T I O N S
determined by local market needs. The
metallics can be returned to the mill or
brokered for sale. The slag products are
marketed for various construction
purposes depending on its nature.
Modern slag uses
Depending upon nature of Slag i.e. its
mineral composition, mineral
composition, physical strength it can be
used for suitable purposes. For example
some Blast Furnace slag have
cementitious property, hence it can be
grounded and granulated and used in
concrete in combination with Portland
cement as part of a blended cement.
Ground granulated slag reacts with water
to produce cementitious properties.
Concrete containing ground granulated
slag develops strength over a longer
period, leading to reduced permeability
and better durability. Since the unit
volume of Portland cement is reduced,
this concrete is less vulnerable to
alkali-silica and attack.
The slag can also be used to create fibers
which can be used as an insulation
material named slag wool.
If the slag posseses good strength and is
inert in nature it can be used as
aggregate in road building activity. It can
also be used in base layer or mixed with
other cementitious material like asphalt
or cement and can be used in various
Macadam layers used in laying a road.
While some other kind of slag may
contain solid pieces of metal which
sometimes are left behind in process of
smelting. Slag also needs to re processed
to extract more of these metallics.
Metso solution for slag crushing
The metallics in the slag pose the biggest
challenge for the crushing of slag as
these can be of very high strength and
are uncrushable in nature. It is
recommended that as much as of these
metallics should be removed before
being fed into any crusher. Multiple
magnetic separators like magnetic pulley,
overhead band magnet etc should be
placed before each and every crusher
even in a multi stage crushing, so that
maximum metallics are recovered and
also amount of uncrushable particles
entering any crusher is minimized.
What is Slag?
In nature, the ores of metals such as iron,
copper, lead, aluminium and other metals
are found in impure states, often oxidized
and mixed in with silicates of other metals.
During smelting, when the ore is exposed
to high temperatures, these impurities are
separated from the molten metal and can
be removed. The collection of compounds
that is removed is the slag. Slag is a partially
vitreous by-product of smelting ore to
separate the metal fraction from the
unwanted fraction. It can usually be
considered to be a mixture of metal oxides
and silicon dioxide. However, slag can
contain metal compounds and even metal
in the metallic form. While slag generally
comes out as a waste in metal smelting
process, it can also serve other purposes as
it contains valuable metal compounds &
metals itself. Slag can also be used as
aggregate in construction industry or they
can be processed again to recover more of
metal or useful minerals from it.
Once the slag has cooled sufficiently, it is
processed through a slag plant to remove
recoverable metallics and to size the slag
into various products, which are
(24) (25)
Amol Sinha
Manager - Applications,
CSR, Metso India
C Jaw with ASC forms the primary
crusher in any slag crushing plant and
will reduce boulders to predominantly
-80mm lumps. If process demands that
these lumps be further crushed down to
still smaller particles Metso offers
Nordberg HP Cone Crusher technology
which are well suited for crushing lumps
with some amount of uncrushable
“tramp” steel pieces.
Boulders of slag when crushed in a C Jaw
Crusher with ASC will break down and
metallic pieces will be liberated from
them hence it will again be advised to
put in place multiple magnetic separators
before HP Cone crusher.
The Tramp release system of HP Cone
crusher are the best available technology
to handle the metallics present in Slag
feed.
HP Cone crusher will further reduce the
lumps to predominantly -30mm lumps
which can be screened to specific sizes
so that the waste Slag is converted into
useful aggregate etc. This stage of
crushing will further liberate more
metallics which can be extracted. In case
process requires that it is further ground
into still finer particles Metso brings in
another of its technology suitable to
further crush these very abrasive Slag
with maximum ease, viz Barmac VSI.
Barmac VSI acts like an Autogenous Mill.
The conventional Barmac VSI rotor can be
dressed with highly abrasion resistant
parts like:
- Tungsten Distributor Plate
- Tungsten Trail Plate
- Laminated Tip Sets
- Lipped upper & lower wear plates
These offer maximum rotor protection
against hard and abrasive Slag particles.
Features and benefits
1. Release function –
• In an overload situation the pressure
relief valves lets the oil escape from the
hydraulic cylinders to the tank
releasing the setting.
• No down time because of toggle plate
bending
• Ability to go extreme applications
concerning steel.
2. Recovery function –
• Returns the setting back to normal
after release
• Optional in stationary applications and
standard in an LT
• Ensures constant end product
recovery function in a stationary
application
• The recovery function is handled
through the IC1000 automation
control system
• In an overload situation the oil escapes
to a tank and the IC 1000 returns it to
the cylinders until the setting has
returned to the target level
• The setting is adjusted by means of an
ultrasonic sensor connected to the
IC 1000
• In C-Jaw applications with the IC1000
the opening pressure is 300 bar (4350
PSI) which means that the whole
setting range can be utilised
recovery function in a LT
• The recovery function is handled
through the IC controls
• In an overload situation the oil escapes
to a tank and the IC returns it to the
target level.
24 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 25
Yet it is never possible to ensure 100%
removal of large or small solid metallic
pieces which are uncrushable and pose
serious danger to the health of crusher
and if they report to cavity of crusher will
lead to lengthy & costly breakdown.
To take care of this tough application
Metso has taken up this challenge and
has designed crushers specifically meant
for our customer who are involved in
business of Slag crushing and processing.
The most significant product in this niche
range is C jaws with “Active setting
Control” technology.
Active Setting Control
The Active Setting Control is a new
system that acts as a setting adjustment
system and releases the crusher cavity to
open in the event of hitting
non-crushable, oversized material.
The Active Control System is based on
three hydraulic cylinders and an
ultrasonic sensor attached to the rear of
the crusher. In cases where
non-crushable material like a piece of
iron enters the crushing cavity and
generates a high pressure, the relief valve
is opened and releases the hydraulic oil
from the cylinders.
Active Setting Control adjustment is used
basically in the same way as the hydraulic
wedge setting adjustment. The system is
powered with an independent hydraulic
unit, or it can be connected to a large
hydraulic system, as in the Lokotrack.
When the setting of the jaw is adjusted
the hydraulic oil flow moves the pistons
in the ASC cylinders in and out, which
increases and decreases the crusher
setting respectively. Pressure relief valves
hold the oil in the cylinders when the
setting is not adjusted which in turn hold
the setting of the jaw constant.
The Active Setting Control also functions
as a safety device. If there are any
uncrushable objects in the jaw cavity, the
pressure in the cylinders rises. When the
pressure rises over a pre-set value, the
pressure relief valves open and let the
piston move in. The crusher setting opens
and the uncrushable material can exit the
jaw cavity.
The active setting control works as a
safety device only throughout the
adjustment range of the cylinders. If the
uncrushable object is larger than the
maximum physical setting, the toggle
plate gives up through elastic buckling.
Main Components & Operating
Principle
Setting is adjusted by increasing or
decreasing the oil volume in the
cylinders. There is no adjustment wedges.
Instead of wedges there are three
hydraulic cylinders.
In an overload situation (when the
pressure exceeds the limit value) the
pressure relief valves lets the oil escape
from the hydraulic cylinders to the oil
tank releasing the setting. This decreases
down time caused by toggle plate
bending and increases ability to go to
extreme applications concerning steel.
• The setting is adjusted by means of an
ultrasonic sensor connected to the IC.
• In LT applications the opening
pressure is 300 bar (4350 PSI) which
means that the whole setting range
can be utilised.
3. Operating principle –
(i) Stationary application –
• Release function as standard
• Recovery function as an option
optional recovery function taken care
of by IC1000
(ii) LT application –
• Release function as standard
• Recovery function as standard
Recovery function handled through
the IC controls (Ultrasonic sensor)
• Opening pressure > 300 bar
• The whole setting range can be
utilized
Applications
• Recycling applications
• Slag
• Applications with relatively big
uncrushable particles (up to the size of
the largest allowed c.s.s. of the crusher)
Availability
• C96/LT96
• C106/LT106
• Possible other models in the future viz
C120, etc.
P R O D U C T S A N D S O L U T I O N SP R O D U C T S A N D S O L U T I O N S
(26) (27)
26 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 27
Metso Vertimills® in Iron Ore The most efficient Grinding solution to Iron ore processing
Significantly reduced energy consumption, media consumption, lower installation cost, highest availability,
greater operational ease, better product and minimal liner wear is what defines the concept of the Metso
Vertimill®. Globally recognized as energy efficient machines, these grinding equipment from Metso can
guarantee lowest total cost of ownership in almost all applications, hence substantially improving the
profitability of the grinding plant. And Iron Ore grinding is no exception to this fact. Read on to know more
about the Metso Vertimill® and how they make a positive impact on Iron Ore processing.
ABSTRACT
In the past twenty years more than 60
Vertimills® have been sold for Iron Ore
applications, with more than 20 of those
in the last two years alone. The Metso
Vertimill® had become the standard in
regrind applications, but quickly the
industry realized its potential in coarser
applications as well.
The mill has been proven to grind more
efficiently than ball mills even with feeds
as coarse as 6 mm. While there are still
cost advantages with multiple Vertimills
compared to a single ball mill, the newly
developed 3000 HP (2240 kW) Vertimill®
lowers the total cost of ownership even
further. By replacing ball mills in power
intensive grinding applications such as
grinding SAG mill and HPGR products,
the savings that have been experienced
in regrind applications can be multiplied
further. Typically, the total cost of
ownership of the Vertimill® compared
with traditional ball mills is 35% less.
Potentially every MW of ball mill power
saved in a primary or secondary
application means a NPV cost savings of
US$ 10 million and 80,000 tonnes of
carbon saved over a ten year mine life.
With increasing energy costs and
environmental consciousness, it is an
economic inevitability that Vertimills® will
become the standard in secondary
grinding, further lowering the processing
costs of Iron ore.
Introduction
Vertimills® are primarily selected because
of the operational cost savings they have
over other grinding mills. The total cost of
ownership for a Vertimill® is almost always
significantly less than a traditional
horizontal ball mill solution.
The Vertimill® advantages include:
• Reduced energy consumption
• Reduced media consumption
• Reduced Maintenance due to machine
simplicity
• Lower Installation Cost
• Less floor space
• High Availability
• Long Wear Life
• Quiet operation (less than 85 db
possible)
• Greater operational safety
Now the big question is: Is it possible to
replace the ball mill completely by the
use of stirred mills and would there be
process and energy consumption
benefits?
The answer is a Yes, however the below
case studies would form a quite reliable
basis for this answer.
There are many such analysis on operating benefits of Vertimills as compared to Ball mill which can be provided on request.
(26) (27)
26 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 27
Metso Vertimills® in Iron Ore The most efficient Grinding solution to Iron ore processing
Significantly reduced energy consumption, media consumption, lower installation cost, highest availability,
greater operational ease, better product and minimal liner wear is what defines the concept of the Metso
Vertimill®. Globally recognized as energy efficient machines, these grinding equipment from Metso can
guarantee lowest total cost of ownership in almost all applications, hence substantially improving the
profitability of the grinding plant. And Iron Ore grinding is no exception to this fact. Read on to know more
about the Metso Vertimill® and how they make a positive impact on Iron Ore processing.
ABSTRACT
In the past twenty years more than 60
Vertimills® have been sold for Iron Ore
applications, with more than 20 of those
in the last two years alone. The Metso
Vertimill® had become the standard in
regrind applications, but quickly the
industry realized its potential in coarser
applications as well.
The mill has been proven to grind more
efficiently than ball mills even with feeds
as coarse as 6 mm. While there are still
cost advantages with multiple Vertimills
compared to a single ball mill, the newly
developed 3000 HP (2240 kW) Vertimill®
lowers the total cost of ownership even
further. By replacing ball mills in power
intensive grinding applications such as
grinding SAG mill and HPGR products,
the savings that have been experienced
in regrind applications can be multiplied
further. Typically, the total cost of
ownership of the Vertimill® compared
with traditional ball mills is 35% less.
Potentially every MW of ball mill power
saved in a primary or secondary
application means a NPV cost savings of
US$ 10 million and 80,000 tonnes of
carbon saved over a ten year mine life.
With increasing energy costs and
environmental consciousness, it is an
economic inevitability that Vertimills® will
become the standard in secondary
grinding, further lowering the processing
costs of Iron ore.
Introduction
Vertimills® are primarily selected because
of the operational cost savings they have
over other grinding mills. The total cost of
ownership for a Vertimill® is almost always
significantly less than a traditional
horizontal ball mill solution.
The Vertimill® advantages include:
• Reduced energy consumption
• Reduced media consumption
• Reduced Maintenance due to machine
simplicity
• Lower Installation Cost
• Less floor space
• High Availability
• Long Wear Life
• Quiet operation (less than 85 db
possible)
• Greater operational safety
Now the big question is: Is it possible to
replace the ball mill completely by the
use of stirred mills and would there be
process and energy consumption
benefits?
The answer is a Yes, however the below
case studies would form a quite reliable
basis for this answer.
There are many such analysis on operating benefits of Vertimills as compared to Ball mill which can be provided on request.
(28) (29)
Case Study – 1: Hibbing Taconite Application (Iron Ore Pelletization plant)
An interesting example is Hibbing
Taconite Application. Hibbing installed
Vertimills as they were facing the below
issues with their existing installations
PROBLEMS• Silica Levels were increasing
• Ore weight recovery was declining
• It was getting difficult to meet
Pelletizing Specifications for grind
SOLUTION?2 Nos. Vertimills VTM-1250-WB installed at
Hibbing Taconite
Circuit Flowsheet for Hibbing Taconite Company
The original flow sheet at Hibbing
Taconite consisted of single stage
crushing followed by single stage
grinding, closed circuited with
hydrocyclones and two steps of
magnetic separation. Fine screens were
added in 1988 to maintain productivity
while handling lower grade ores and
targeting a lower silica content in the
fired pellet. Here, the fine screen oversize
was routed back to the primary mill for
additional grinding. Cobbing and
crushing of the trommel oversize pebbles
was added in 1995 to increase
productivity, on four mill lines. Secondary
cyclones were added to those same four
mill lines in 1997 to improve silica, grind
and Blaine control. The fine screen
oversize grinding circuit, called FSOG, was
added in 1999.
The new circuit removes and grinds, fine
screen oversize material, outside of the
primary autogenous mill circuit.
Apart from the operational
improvements, the Vertimills proved to
significantly lower maintenance budget
by reducing the wear parts consumption.
While the shell liners (Metso Orebed ®
liners) are kind of permanent liners and
are fitted for life, the screw liners also
delivered an impressive service life.
Report on wear life of the Vertimills for Hibbing Taconite Application
Screw Wear
Findings on Screw Liner wear• 5066 Operating Hours, 37 % weight
loss, 0.45 lbs./hr
• Liners can be used until greater than
70% weight loss
• Average Digging Shoe life of 18 months
• The shoe on the right is new, compared
to the shoe on the left which was
removed after 5066 operating hours and
showed 37 percent weight loss, about
0.45 of a pound per operating hour, or
about 0.003 of a pound per ton of mill
feed.
28 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 29
Hibbing Taconite w
p
c
m
a
o
a
T
s
p
A
i
s
b
W
l
a
dResults
Mine and Concentrator Savings
• 1,500,000 tons in the 2000 mine plan
originally classified as waste was
re-classified as ore and successfully
processed in the plant
• A reduction in loading units - 7 shovels
to 6, 2 loaders to 1
• Increased Concentrate Production by
442,000 tons
• Improved Silica Control (see below
table)
MEAN 3 SIGMA COMPLIANCE
1997 4.17 0.41 83%
1998 4.15 0.48 80%
1999 4.13 0.47 86%
2000 4.10 0.29 98%
Case Study – 2 : Las Encinas (Two (2) VTM-1500-WB )
Application : Secondary grinding of Magnetite
Equipment : 2 nos. VTM-1500-WB replaced 2 nos.
operating ball mills of 2000 hp each
Selection : sizing was done based on plant data
• F80 = 240 microns
• P80 =50 microns
Vertimills at Les Encinas
Achievements• 47% Less Media Consumption
• 25-35% Less energy
• 18% Increase in Throughput
Proven Technology
The Vertimill® is a proven technology that
offers considerable savings in media and
energy operating costs that will lower the
cost of production significantly. Also, the
environmental impact of an iron or for
that matter any concentrator is signifi-
cantly decreased.
In India where the cost of energy is
significant, availability of power is a
challenge, Grinding media is quite costly
and environmental norms are becoming
tougher by the passing day, it is prudent
that a technology is adopted which
lowers the burden of Power, Media and
Maintenance cost, provides a safer
working environment in addition to
reduced impact on environment.
In the future, it is extremely likely that
more sites will adopt this technology for
more of their grinding needs to improve
their profitability.
Ashutosh AgarwalManager - Mining sales,
Mining & Construction Technology
T E C H T A L K
HIBBING TACONITE COMPANY
(28) (29)
Case Study – 1: Hibbing Taconite Application (Iron Ore Pelletization plant)
An interesting example is Hibbing
Taconite Application. Hibbing installed
Vertimills as they were facing the below
issues with their existing installations
PROBLEMS• Silica Levels were increasing
• Ore weight recovery was declining
• It was getting difficult to meet
Pelletizing Specifications for grind
SOLUTION?2 Nos. Vertimills VTM-1250-WB installed at
Hibbing Taconite
Circuit Flowsheet for Hibbing Taconite Company
The original flow sheet at Hibbing
Taconite consisted of single stage
crushing followed by single stage
grinding, closed circuited with
hydrocyclones and two steps of
magnetic separation. Fine screens were
added in 1988 to maintain productivity
while handling lower grade ores and
targeting a lower silica content in the
fired pellet. Here, the fine screen oversize
was routed back to the primary mill for
additional grinding. Cobbing and
crushing of the trommel oversize pebbles
was added in 1995 to increase
productivity, on four mill lines. Secondary
cyclones were added to those same four
mill lines in 1997 to improve silica, grind
and Blaine control. The fine screen
oversize grinding circuit, called FSOG, was
added in 1999.
The new circuit removes and grinds, fine
screen oversize material, outside of the
primary autogenous mill circuit.
Apart from the operational
improvements, the Vertimills proved to
significantly lower maintenance budget
by reducing the wear parts consumption.
While the shell liners (Metso Orebed ®
liners) are kind of permanent liners and
are fitted for life, the screw liners also
delivered an impressive service life.
Report on wear life of the Vertimills for Hibbing Taconite Application
Screw Wear
Findings on Screw Liner wear• 5066 Operating Hours, 37 % weight
loss, 0.45 lbs./hr
• Liners can be used until greater than
70% weight loss
• Average Digging Shoe life of 18 months
• The shoe on the right is new, compared
to the shoe on the left which was
removed after 5066 operating hours and
showed 37 percent weight loss, about
0.45 of a pound per operating hour, or
about 0.003 of a pound per ton of mill
feed.
28 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 29
Hibbing Taconite w
p
c
m
a
o
a
T
s
p
A
i
s
b
W
l
a
dResults
Mine and Concentrator Savings
• 1,500,000 tons in the 2000 mine plan
originally classified as waste was
re-classified as ore and successfully
processed in the plant
• A reduction in loading units - 7 shovels
to 6, 2 loaders to 1
• Increased Concentrate Production by
442,000 tons
• Improved Silica Control (see below
table)
MEAN 3 SIGMA COMPLIANCE
1997 4.17 0.41 83%
1998 4.15 0.48 80%
1999 4.13 0.47 86%
2000 4.10 0.29 98%
Case Study – 2 : Las Encinas (Two (2) VTM-1500-WB )
Application : Secondary grinding of Magnetite
Equipment : 2 nos. VTM-1500-WB replaced 2 nos.
operating ball mills of 2000 hp each
Selection : sizing was done based on plant data
• F80 = 240 microns
• P80 =50 microns
Vertimills at Les Encinas
Achievements• 47% Less Media Consumption
• 25-35% Less energy
• 18% Increase in Throughput
Proven Technology
The Vertimill® is a proven technology that
offers considerable savings in media and
energy operating costs that will lower the
cost of production significantly. Also, the
environmental impact of an iron or for
that matter any concentrator is signifi-
cantly decreased.
In India where the cost of energy is
significant, availability of power is a
challenge, Grinding media is quite costly
and environmental norms are becoming
tougher by the passing day, it is prudent
that a technology is adopted which
lowers the burden of Power, Media and
Maintenance cost, provides a safer
working environment in addition to
reduced impact on environment.
In the future, it is extremely likely that
more sites will adopt this technology for
more of their grinding needs to improve
their profitability.
Ashutosh AgarwalManager - Mining sales,
Mining & Construction Technology
T E C H T A L K
HIBBING TACONITE COMPANY
“In the initial stages of preparation for the
technical requirements of the equipment,
we had planned to purchase a mobile
washing plant, but Metso’s engineers
convinced us of the advantages of
stationary washing and screening
equipment. Today, with the complex
working 24/7 at full capacity, it is easy to
see that we made the right choice,” says
Maykop Nerud’s Deputy General Director,
Alexey Poddubny.
From sand-gravel mix to quality
aggregates
As raw material Maykop Nerud uses
metamorphic alluvial sediments of hard
rock, deposited in the valley of the Belaya
River millions of years ago. The
sand-gravel mix in the company’s quarry
features some properties of granite with
excellent hardness, making it a good feed
for the production of quality aggregates.
Straightforward quarrying technology is
utilized: excavators dig up the
sand-gravel mix and move it to
stockpiles. From the stockpiles the
sand-gravel mix is reclaimed to Metso’s
three-stage crushing and screening
process, consisting of tracked jaw and
cone crushing plants and a mobile
screen.
Crushed to the size of 0–20 mm, the
material is transported by conveyors to a
washing complex consisting of a feed
hopper, conveyors, a 4-deck washing
screen, a spiral classifier and an
automated control system.
In order to facilitate the operations of its
customers, Metso has established a stock
of spares and consumables on Maykop
Nerud’s territory; Maykop Nerud can use
the stock for its own purposes and parts
can also be delivered to other Metso
customers as required. The reliability of
the equipment and its operational
effectiveness mainly depend on the
availability and prompt replacement of
spares and consumables – a prerequisite
ensured by the mutual efforts of Metso
personnel and Maykop Nerud staff.
Powerful crushing complex in
combination with washing plant
Having taken into account the growing
demand for high-quality end products,
Maykop Nerud and Metso agreed to
extend their cooperation and create an
even more powerful stationary crushing
and screening complex, including a
primary jaw crusher and two stationary
cone crushers for operation in combina-
tion with a stationary washing complex.
“Beginning in the second quarter of 2012,
we will use the new stationary crushing
and screening complex along with the
mobile equipment, thus allowing us to
increase our capacity to 130,000 –
140,000 tons per month in order to meet
the constantly growing demand,” says
Stanislav Steblyansky, Deputy General
Director of Maykop Nerud.
The company’s sand-gravel-mix resources
are expected to last upwards of 20 years.
Upon the completion of mining and
once the territory has been rehabilitated,
the quarry will be transformed into an
artificial lake for recreation and fishing for
the residents of the City of Maykop.
More info:
Alexey Shevyakhov
Tel. +7 495 915 29 30
FACT FILE
Maykop quarry, owned by the Maykop
Nerud Company
Location: City of Maykop, Republic of
Adygea, Southern Russia
Raw material: hard rock sand-gravel mix,
hardness 40 kN
Capacity: 250 t/h, with increase up to 550
t/h in 2012
Resources: over 10 million cubic meters
On-site Меtsо equipment:
1 Lokotrack LT106 jaw plant
1 Lokotrack LT200HP cone plant
1 Lokotrack ST3.5 mobile screen
1 Nordberg CVB 2060-4 inclined screen;
1 Nordberg SF2870 sand trap
Equipment being installed with
commissioning in 2nd quarter of 2012:
1 Nordberg C80 jaw crusher
2 Nordberg HP4 cone crushers
2 Nordberg CVB2060-4 inclined screens
1 Nordberg SF2360 sand trap
1 Nordberg SF2870 sand trap
End products:
Washed building sand 0–5 mm and
crushed aggregates 5–10 mm, 10–20
mm, 5–20 mm, 20–40 mm.
Picture captions:
Sochi_1: Metso’s stationary washing plant
was delivered to Maykop Nerud and so
far has processed over 500,000 tons of
high-quality aggregates and sand for the
construction of Olympic facilities in Sochi.
Sochi _2: The sand & gravel mix is
crushed and screened into 0–20 mm
fractions using jaw and cone crushing
plants combined with a mobile screen.
Sochi _3: Positive estimate of the end
product quality. General Director of
Maykop Nerud Company Alexander
Kozhanov (in the middle), with his
deputies Alexey Poddubny and Stanislav
Steblyansky.
Sochi _4: Metso’s sand trap is a critical
component of the washing complex.
Sochi _5: The Maykop Nerud Company
has supplied more than 150,000 tons of
0–5 mm washed sand and aggregates
fractions of 5–10 mm, 10–20 mm and
5–20 mm for shotcreting and for the
concrete lining of the constructed
tunnels.
Construction projects at a total
budget of EUR 5.34 billion
The construction budget of EUR 5.34
billion for projects in Sochi includes three
major sites: the Olympic Park along the
shore of Black Sea, the Olympic Village
containing residences for the athletes,
and the ski resort Krasnaya Polyana in the
Caucasus Mountains.
These three sites will be interconnected
by numerous new highways, roads,
bridges and tunnels. Essentially, the entire
infrastructure within and around the
110-km-long Sochi will be renewed.
More than 155,000 workers are involved
in the construction projects. In total,
more than 300,000 cubic meters of
concrete will be used for shotcreting and
for the solid cladding of the tunnels. A
considerable proportion of that concrete
will be prepared using the aggregates
and sand of Maykop Nerud.
The company Severstroy is producing
concrete elements for lining 23 kilome-
ters of various tunnels. All of the washed
aggregates and sand for those projects is
also being supplied by Maykop Nerud.
Picture:
Sochi_6: In August 2011, construction of
the new ice stadium in Olympic Park was
at full speed.
(30) (31)
30 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 31
The City of Sochi, despite its subtropical
climate, is preparing to host the Winter
Olympic Games in 2014. In connection
with this event, major sports and
infrastructure facilities are being built.
Because the Olympic site is classified as a
12-magnitude seismic zone, the State
Corporation “Olympstroy” and Russian
construction regulations only allow the
use of high-quality washed aggregates in
concrete when constructing critical
objects in Sochi.
The above-mentioned requirements are
being met in full by the company
Maykop Nerud Company, which
produces crushed stone of various
fractions and sand using Metso’s mobile
crushing and screening plant and a
stationary washing complex, processing
ancient metamorphic alluvial formations
into high-quality construction materials.
To date, Maykop Nerud has shipped to
Sochi more than a million tons of inert
materials/aggregates produced in its
in-house production and in adjacent
quarries. Inert materials are delivered to
Sochi exclusively by rail, due to difficult
mountain conditions. The company
dispatches 1 to 2 trains containing 3,000
– 6,000 tons of crushed stone and
building sand to the Olympic city daily.
Aggregates from Maykop Nerud are
being used in many Olympic projects,
including a major ice rink, and in tunnel
complex No. 1, consisting of 2.5 kilome-
ters of road, railway and service tunnels,
which will be used to transport guests at
the Sochi 2014 Olympic Games between
the Olympic Village and a ski complex in
Krasnaya Polyana.
Maykop Nerud’s washed sand is also
being used by manufacturers of tubing
for five tunnels under construction.
“Мetso is more than just a partner”
Maykop Nerud was established just four
years ago and was supplying the inert
materials of other producers using an
in-house railroad warehouse. Later, the
company entered into contracts with
major construction companies running
operations in Sochi and purchased its
own equipment for crushing and
screening.
“While looking for an equipment supplier,
we were approached by leading
manufacturers of crushing and screening
equipment. After their proposals were
subsequently cross-checked, Metso was
deservedly appreciated as a supplier of
high-quality equipment by all other
bidders,” says Alexander Kozhanov,
General Director of Maykop Nerud.
“Since choosing Metso as our equipment
supplier and during the course of our
cooperation we have come to the
realization that Metso is a true partner for
us. In close cooperation with Metso we
develop and implement processes
unavailable to competitors, work
together as a united team and share
valuable experience,” Kozhanov adds.
A good example is Metso’s washing
complex, operated at Maykop Nerud’s
quarry. It is the first complex of its kind in
Russia.
Facilities for the Sochi Winter Olympics constructed with high-quality aggregatesTEXT & PHOTOS Eero Hämäläinen
G L O B E T R O T T I N G
“In the initial stages of preparation for the
technical requirements of the equipment,
we had planned to purchase a mobile
washing plant, but Metso’s engineers
convinced us of the advantages of
stationary washing and screening
equipment. Today, with the complex
working 24/7 at full capacity, it is easy to
see that we made the right choice,” says
Maykop Nerud’s Deputy General Director,
Alexey Poddubny.
From sand-gravel mix to quality
aggregates
As raw material Maykop Nerud uses
metamorphic alluvial sediments of hard
rock, deposited in the valley of the Belaya
River millions of years ago. The
sand-gravel mix in the company’s quarry
features some properties of granite with
excellent hardness, making it a good feed
for the production of quality aggregates.
Straightforward quarrying technology is
utilized: excavators dig up the
sand-gravel mix and move it to
stockpiles. From the stockpiles the
sand-gravel mix is reclaimed to Metso’s
three-stage crushing and screening
process, consisting of tracked jaw and
cone crushing plants and a mobile
screen.
Crushed to the size of 0–20 mm, the
material is transported by conveyors to a
washing complex consisting of a feed
hopper, conveyors, a 4-deck washing
screen, a spiral classifier and an
automated control system.
In order to facilitate the operations of its
customers, Metso has established a stock
of spares and consumables on Maykop
Nerud’s territory; Maykop Nerud can use
the stock for its own purposes and parts
can also be delivered to other Metso
customers as required. The reliability of
the equipment and its operational
effectiveness mainly depend on the
availability and prompt replacement of
spares and consumables – a prerequisite
ensured by the mutual efforts of Metso
personnel and Maykop Nerud staff.
Powerful crushing complex in
combination with washing plant
Having taken into account the growing
demand for high-quality end products,
Maykop Nerud and Metso agreed to
extend their cooperation and create an
even more powerful stationary crushing
and screening complex, including a
primary jaw crusher and two stationary
cone crushers for operation in combina-
tion with a stationary washing complex.
“Beginning in the second quarter of 2012,
we will use the new stationary crushing
and screening complex along with the
mobile equipment, thus allowing us to
increase our capacity to 130,000 –
140,000 tons per month in order to meet
the constantly growing demand,” says
Stanislav Steblyansky, Deputy General
Director of Maykop Nerud.
The company’s sand-gravel-mix resources
are expected to last upwards of 20 years.
Upon the completion of mining and
once the territory has been rehabilitated,
the quarry will be transformed into an
artificial lake for recreation and fishing for
the residents of the City of Maykop.
More info:
Alexey Shevyakhov
Tel. +7 495 915 29 30
FACT FILE
Maykop quarry, owned by the Maykop
Nerud Company
Location: City of Maykop, Republic of
Adygea, Southern Russia
Raw material: hard rock sand-gravel mix,
hardness 40 kN
Capacity: 250 t/h, with increase up to 550
t/h in 2012
Resources: over 10 million cubic meters
On-site Меtsо equipment:
1 Lokotrack LT106 jaw plant
1 Lokotrack LT200HP cone plant
1 Lokotrack ST3.5 mobile screen
1 Nordberg CVB 2060-4 inclined screen;
1 Nordberg SF2870 sand trap
Equipment being installed with
commissioning in 2nd quarter of 2012:
1 Nordberg C80 jaw crusher
2 Nordberg HP4 cone crushers
2 Nordberg CVB2060-4 inclined screens
1 Nordberg SF2360 sand trap
1 Nordberg SF2870 sand trap
End products:
Washed building sand 0–5 mm and
crushed aggregates 5–10 mm, 10–20
mm, 5–20 mm, 20–40 mm.
Picture captions:
Sochi_1: Metso’s stationary washing plant
was delivered to Maykop Nerud and so
far has processed over 500,000 tons of
high-quality aggregates and sand for the
construction of Olympic facilities in Sochi.
Sochi _2: The sand & gravel mix is
crushed and screened into 0–20 mm
fractions using jaw and cone crushing
plants combined with a mobile screen.
Sochi _3: Positive estimate of the end
product quality. General Director of
Maykop Nerud Company Alexander
Kozhanov (in the middle), with his
deputies Alexey Poddubny and Stanislav
Steblyansky.
Sochi _4: Metso’s sand trap is a critical
component of the washing complex.
Sochi _5: The Maykop Nerud Company
has supplied more than 150,000 tons of
0–5 mm washed sand and aggregates
fractions of 5–10 mm, 10–20 mm and
5–20 mm for shotcreting and for the
concrete lining of the constructed
tunnels.
Construction projects at a total
budget of EUR 5.34 billion
The construction budget of EUR 5.34
billion for projects in Sochi includes three
major sites: the Olympic Park along the
shore of Black Sea, the Olympic Village
containing residences for the athletes,
and the ski resort Krasnaya Polyana in the
Caucasus Mountains.
These three sites will be interconnected
by numerous new highways, roads,
bridges and tunnels. Essentially, the entire
infrastructure within and around the
110-km-long Sochi will be renewed.
More than 155,000 workers are involved
in the construction projects. In total,
more than 300,000 cubic meters of
concrete will be used for shotcreting and
for the solid cladding of the tunnels. A
considerable proportion of that concrete
will be prepared using the aggregates
and sand of Maykop Nerud.
The company Severstroy is producing
concrete elements for lining 23 kilome-
ters of various tunnels. All of the washed
aggregates and sand for those projects is
also being supplied by Maykop Nerud.
Picture:
Sochi_6: In August 2011, construction of
the new ice stadium in Olympic Park was
at full speed.
(30) (31)
30 RESULTS MINERALS & AGGREGATES 4/2011 RESULTS MINERALS & AGGREGATES 4/2011 31
The City of Sochi, despite its subtropical
climate, is preparing to host the Winter
Olympic Games in 2014. In connection
with this event, major sports and
infrastructure facilities are being built.
Because the Olympic site is classified as a
12-magnitude seismic zone, the State
Corporation “Olympstroy” and Russian
construction regulations only allow the
use of high-quality washed aggregates in
concrete when constructing critical
objects in Sochi.
The above-mentioned requirements are
being met in full by the company
Maykop Nerud Company, which
produces crushed stone of various
fractions and sand using Metso’s mobile
crushing and screening plant and a
stationary washing complex, processing
ancient metamorphic alluvial formations
into high-quality construction materials.
To date, Maykop Nerud has shipped to
Sochi more than a million tons of inert
materials/aggregates produced in its
in-house production and in adjacent
quarries. Inert materials are delivered to
Sochi exclusively by rail, due to difficult
mountain conditions. The company
dispatches 1 to 2 trains containing 3,000
– 6,000 tons of crushed stone and
building sand to the Olympic city daily.
Aggregates from Maykop Nerud are
being used in many Olympic projects,
including a major ice rink, and in tunnel
complex No. 1, consisting of 2.5 kilome-
ters of road, railway and service tunnels,
which will be used to transport guests at
the Sochi 2014 Olympic Games between
the Olympic Village and a ski complex in
Krasnaya Polyana.
Maykop Nerud’s washed sand is also
being used by manufacturers of tubing
for five tunnels under construction.
“Мetso is more than just a partner”
Maykop Nerud was established just four
years ago and was supplying the inert
materials of other producers using an
in-house railroad warehouse. Later, the
company entered into contracts with
major construction companies running
operations in Sochi and purchased its
own equipment for crushing and
screening.
“While looking for an equipment supplier,
we were approached by leading
manufacturers of crushing and screening
equipment. After their proposals were
subsequently cross-checked, Metso was
deservedly appreciated as a supplier of
high-quality equipment by all other
bidders,” says Alexander Kozhanov,
General Director of Maykop Nerud.
“Since choosing Metso as our equipment
supplier and during the course of our
cooperation we have come to the
realization that Metso is a true partner for
us. In close cooperation with Metso we
develop and implement processes
unavailable to competitors, work
together as a united team and share
valuable experience,” Kozhanov adds.
A good example is Metso’s washing
complex, operated at Maykop Nerud’s
quarry. It is the first complex of its kind in
Russia.
Facilities for the Sochi Winter Olympics constructed with high-quality aggregatesTEXT & PHOTOS Eero Hämäläinen
G L O B E T R O T T I N G
(34) (1)
resultsminerals & aggregates
METSO INDIA CUSTOMER MAGAZINE FOR THE MINING AND CONSTRUCTION INDUSTRIES Vol. 18 4 2011
India races on….Jaypee Group and Metso create history together 4
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