Precast ING
Transcript of Precast ING
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Batching plants
for precast
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The background 02
The company 04
Horizontal batching plants 06
Vertical batching plants 06
Control systems 18Pan mixers 22
Overhead concrete distribution 26
Accessories 30
Installations 32
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The background
The company
Horizontal batching plants
Vertical batching plants
Control systems
Pan mixers
Overhead concrete distribution
Accessories
Installations
02
Over 40 years of experience and know-how in the field of concrete mixing and batching plants have made Le ORU Officine
Riunite - Udine S.p.A. a leader with a name known and appreciated all over the world. As Batching Plants Division of
the IMER Group , ORU conf irm s its pres ence on the mark et as an impo rtan t indu stri al comp lex, capa ble of expre ssin g a
high level of strategic and industrial synergy. As successful partner for its professionalism and experience in the design,
production and sale of concrete batching plants, ORU is dedicated to the development of innovative modern solutions
capable of meeting the different requirements of the market. The vast range of products offered for the production of
quality concrete includes horizontal and vertical batching plants for prefabricated elements; horizontal and vertical
batching plants for truck mixers; overhead concrete distribution systems; planetary pan mixers and twin-shaft mixers;
batching plants with radius lift arms.
Forty years of tradition and innovation at the service of the building industry
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The design of the batching plants and equipment, tailored to the requirements of individual building yards, prefabrication plants
and concrete sale facilities, is the brainchild of the efficient and flexible organization of the ORU engineering department. The rigidly
selected staff, its constant dedication to quality, the continuous technological innovations and the application of rigid controls have
enabled the company to reach high levels of performance and enabled it, in 1996, to obtain the ISO 9001 certification.
ORUs service department, through the experience, responsibility and competence of its personnel and its dense network of
service centres, makes it possible to promptly meet the different requirements of individual customers. Over 22,000 customers
worldwide have shown their preference for ORU products and have been able to verify the quality and reliability of the companys
design and service departments. In addition, with a constant concern for the requirements of the environment and the ecological
aspect of its products, ORU designs and builds certified concrete batching plants and equipment with noise and dust emission
levels below the limits required by the relative standards.
Design, service and respect for the environment
The background
The company
Horizontal batching plants
Vertical batching plants
Control systems
Pan mixers
Overhead concrete distribution
Accessories
Installations
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The ORU horizontal batching plants are designed and built for long operation even in extreme working conditions, a standard
prerogative of every ORU product. Particular design features make these machines easy to install, safe to operate and low in
their maintena nce r equiremen ts. T he st andardizat ion of so me el ements common to al l ver sions, the modular construc tion, the
different equipment combinations, and the vast range of accessories make it possible to increase the versatility of the batching
plant, thus making it the ideal solution for any concrete batching requirement. To respond to the many requirements of build-
ing yards of different types (for clearances, dimensions, etc.), ORU proposes an accurate study capable of resolving the most
diverse problems: from the installation of the batching plant to the delivery of the concrete (distribution, etc.), to the process of
automation and prearrangement of the safety equipment, in compliance with applicable legislation
Horizontal batching plant for precast facilities
The background
The company
Horizontal batching plants
Vertical batching plants
Control systems
Pan mixers
Overhead concrete distribution
Accessories
Installations
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Modular construction and hot galvanizing
To simplify construction and handling, and cut down delivery
times, ORU has standardized some elem ents that are common to
all versions. These elements include walls, extension walls and
partitions, aggregate hoppers, the weighing conveyor belt frame,
and the frame of the hopper with two discharge gates.
The support structure and the aggregate storage bins are hot
galvanized. This type of surface treatment of the metal ensures
an excellent protection against corrosion in any environmental
condition, and therefore a longer life and better inalterability of
the product. On request, th e equipment can also be provided with
paint coating over the galvanized surfaces.
Aggregate st orage and c overs
The dimensions of the compartments are such as to allow a
considerable filling capacity, and the modularity of the hoppers
simplifies their installation. The aggregate storage bin charg-
ing system is made to meet the specific requirements of each
building yard.
Weighing
The aggregate and cement weighing system uses load cells applied
directly to the supports of the respective hoppers, thus achieving an
accurate and reliable weight measurement. The weighing system
with load cells is type approved according to CE standards.
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Vibrator
To facilitate the discharge of particularly cohesive materials,
vibrators have been installed on independent plates applied with aparticular system to avoid negative stresses to the plant structure.
Vibrating e xtractor
Thevibrating extractorsare machines consisting of a spring-
supported steel-plate conduit used to discharge the aggregate
through the movement generated by electromechanical or
electromagnetic vibrators. The machines are suitable for
discharging aggregate of any grain size. The distinctive
characteristics are metering precision, low noise, and practically
maintenance-free operation.
Opening with limit switches
The aggregate is fed from the hoppers through electro-pneumatic
discharge gates, with double speed in the closing phase. On request,
the discharge systems can be of different type (by belt conveyor,
by vibrating conveyors, etc.) and tailored to the requirements of
the customer. When the aggregate is discharged through electro-
pneumatic gates, the use of an adjustable mechanical limit
switch controlling the opening of the discharge gate guarantees
greater batching accuracy.
Extracting conveyor belt
When high metering accuracy is necessary in feeding materi-
als such as sand or crushed stone, the use of the extracting
conveyor beltis a sure solution to the problem. The machine is
equipped with a device signalling the presence of material, a flow
regulator, and a manual cut-off gate for routine maintenance.
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Elevator
Thevertical bucket elevators are endless drag conveyors used
to feed the aggregate storage un its. Their use is essential when
tight spaces do not al low the install ation of conveyor belts.
Conveyor belt
The conveyor belts are used to carry aggregate materials. They
can be installed in a horizontal or inclined position, depending on
the heig ht to reach. The equi pment provided i ncludes charging
and discharge funnels and safety guards.
The application of tailor-made safety guards allows an absolutely
safe access to every component of the batching plant.
Safety-cord limit switch
Safety device with manual reset switch.
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1. TP27 aggregate feeding hopper
2. Auxiliary conveyor belt m 50x0,65
3. Translating and reversible conveyor belt
4. Storage group
5. Aggregate weighing hopper
6. Aggregate weighing conveyor belt
7. Skip mod. 2250/1500
8. ORU MS 2250/1500S planetary mixer
9. Cement weighing hopper of 600 l of capacity
10. Cement silo
11. Dust remover
12. Additive unit with impulse metre
13. Screw feeder 8400x219
14. Screw feeder 11500x219
15. Concrete conveyor belt m 9,6x0,7
16. Concrete conveyor belt
17. Control panel
18. Computer CS90-20P
19. Control cabin
20. Compressor unit
21. Control panels
Oru precast batching plants
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Description of equipment
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Vertical batching plants for precast facilities
In accordance with the general philosophy underlying ORUs commercial policy, the vertical batching plants for prefabrication
operations are designed to provide an answer to specific requirements. The choice of a vertical batching plant presupposes a
greater output compared to a horizontal plant and offers an excellent possibility of controlling noise and dust emissions. The verti-
cal system requires in fact the material to be raised, but thereafter the whole process takes place in a closed environment and by
gravity, with distinct advantages in terms of energy economy, less wear, and contained external noise levels. The combination of the
most modern technologies and of trained personnel makes it possible to obtain a system capable of reconciling productivity and
quality of the product and of best meeting operating demands.
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Control systems CS 90
Based on a new control philosophy, the CS 90 is a complex software system that can be integrated with easily accessed
commercial software whose architecture, based on the WINDOWS NT operating system, is entirely designed, developed and
updated by ORU.
The application of a highly specialized staff, with direct building-yard experience and a thorough understanding of the related
problems, enables ORU to offer a product of considerable potential and with characteristics that are always tailored to the specific
requirements of the customer.
Special requests and product types are not, in fact, a problem for the CS 90which, to better adapt to the different production
realities, is available in three configurations:
CS 90 - Vfor batching plants used for the sale of concrete;
CS 90 - Pfor plants used in the prefabrication and/or production of precast products;
CS 90 - Mfor plants used for both the sale of concrete and for prefabrication.
These configurations are perfectly compatible with each other and, in case of an enlargement or alteration of the batching plant,they can be easi ly integrated with the different f unctions, with obvi ous economic ad vantages.
With the CS 90it is also possible to provide for the control of other sections of the batching plant, the customers own equipment,
or even different batching plants. Thus, it is possible to manage the production process and exchange data with the customers own
computer systems.
Each CS 90configuration is supplied in the most suitable language for the user, who can thus operate in the condition of maximum
productivity right from the start.
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Control systems CS 90
Main performance features and characteristics
- WINDOWS NT / 2000 Operating System
- Dynamic synoptic panels with indication of the different active functions
- Any number of components, depending on the configuration of the plant
- Management of archives for the sale of concrete and/or prefabrication: batching recipes, work orders, customers, building yards,
vehicles, drivers, tr ansportation doc uments, surcharges, manufactured prod ucts and batchin g
- Management of production orders with optimization and rationalization of concrete distribution
- Automatic or manual moisture compensation (simultaneously or in advance)
- Use of different types of moisture detection probes
- Control of mixture directly in the pan mixer (consistence, moisture, water/cement ratio) through the interfacing with hygrometers
in the pan mixer
- Weighing algorithm with control of free-fall learning and dispensing of each component to obtain the required batching accuracy
- Batching tolerance test
- Zero test and automatic tare determination for the weighing units
- Stock of material on hand and consumption of batching plant with possibility of automatic and manual control
- Printing of transportation documents in compliance with the legal provisions of different countries
- Selective printing of all stored information and production statistics
- Alarm messages for all the functions of the batching plant
- Modification of parameters through keyboard and mouse
- Possibility of data protection through password
- Handling of production orders coming from other systems *
- Connection with business computer for automatic invoicing and accounting *
- Connection through modem with remote assistance *
*Optional
Control systems IU 98.04
The IU 98.04 programmable logic unit is the ideal means to automate the operation of the concrete batching plants for
prefabrication facilities or for sale.
The pan mixer charging sequence can be completely configured so as to allow the addition of various components according
to their physic al-chem ical b ehaviour to obta in a h omogeneo us mixt ure.
The system is prearranged for the automatic moisture detection through hygrometric probes placed inside the aggregate
hoppers. Compensation involves the automatic increase of the quantity of aggregate corresponding to the moisture content in
the aggr egate an d the c onseque nt subtr action of the water me tered ou t.
The characteristics of each batching component (slow-down preset, free-fall learning, discharge time, upper-lower tolerance)
can be completely configured from the relative menu.
The operator can decide the batching sequence of each aggregate and each cement; he can set up to 3 work orders and 100
recipes (setting of quantities of components to batch, the number of cycles and relative fractions to make, mixing times and
batching priorities); and he can suspend or restart, or cancel, all the activities in progress on the batching plant, all at the same
time or one by one.
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ORU MS pan mixers
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The ORU MSplanetary pan mixer with vertical shafts and coaxial motor allows the rapid mixing of all types of quality concrete: dry,
semi-dry and plastic. The ORU MS, born of a intensive and systematic study of the problems inherent in the mixing of materials of
different grain sizes, shape, consistency and specific weight, is an extremely sturdy and reliable machine. The MS is characterized
by the high quality and uniformity of the materials, the possibility of achieving any type of mix design, the mixing speed, the wide
range of products and the various solutions and combinations of wear-resistant lining.
The mixing panis made of thick steel plate.
On request, the wear-resistant lining of the mixing pan
is available in different types of materials to suit specific
customer requirements.
The bottom and wall liningof the mixing pan are made up
of interchangeable sectors. The bottom and wall plates are
made of Hardox steel in the standard version or, optionally, they
are made of cast iron or sintered hard metal.
The epicyclic reduction unit
The epicyclic reduction unit rotates on a large disk gear that
ensures a low-noise rotation without backlash even under
severe working conditions. The mechanism is contained in a
single cast-iron gearcase, and all the gears work in an oil bath.
The large diameter of the gearcase allows the oil level to be
lowered without compromising the excellent operation of the
machine.
The scraping and mixing bladescan be made of cast iron
or, on request, elastomers, or they may be tipped with widia.
The angles of incidence and the profiles of all the blades are
carefully studied to draw the best advantage from the power
available and to achieve the shortest possible mixing and
discharge times.
The whirling and rotation speeds of the blades have
been extensively studied and tested to give the ORU MS a high
output without causing the segregation of materials of different
grain size and weight. The movement of the material inside the
mixing pan is smooth, progressive and continuous.
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ORU MS pan mixers: The Skip
The pan mixers can be charged by means of a conveyor belt or a skip. The skip, available in two different upward/downward speed
versions, consist s of a double-wound drum which, than ks to its large size, allows a hi gh peripheral speed with a lo w power input. The
skip has a truncated pyramid shape and is equipped with a gravity discharge gate supported by two sturdy bearings. The skip moves
between rails on 6 special steel wheels, thus guaranteeing excellent stability of the skip in motion. Mechanical and electrical devices
prevent the fall of the skip even in case of breakage of the lifting cable. This, together with the other safety devices on the equipment,
guarantees a high degree of safety. On request, the skip can be provided with antiwear lining.
ORU MB mixers
The ORU MB, the ideal mixer for the preparation of various types of concrete, is provided with two horizontal counter-rotating
mixing shafts with a turning motion synchronized with each other. Moreover, the particular configuration of the mixing devices
makes it possible to use coarse aggregates (with grain sizes >150 mm). The blades are made of special hardened and tempered
steel (on request, of cast iron) and installed on mixing arms, which are also made of steel and have a profile designed to enhance
their strength and shorten mixing times. The angle of inclinat ion of the blades and arms imparts a counter-rota ting, partially
overlapping, spiral movement on the mixture, so as to obtain a complete forced mixing, both horizontally and vertically. This avoids
problems of centrifugal separation or flotation of the lighter materials. The pan is lined with small bolted and interchangeable
elements of special wear-resistant steel (on request, they can be made of hardened and tempered steel or cast iron).
Technical characteristics
Model ORU MS500330
750500
1200800
15001000
22501500
22501500S
30002000
Mixing pan dimensions/mm
Fresh concrete/litres
Compacted concrete/litres/kg
Average time per cycle/sec.
Stars and mixing blades/number
Scraping blades/number
Gear train/rpm
Star/rpm
Mixer power supply/kW
Hyd. unit power supply/kW
478
330/790
45
1x2
1
16
46
15
2,2
1.600x650
725
500/1.200
45
1x2
1
16
46
18,5
2,2
1.850x700
1.160
800/1.900
45
1x3
1
14,7
44,5
30
3
2.200x760
1.450
1.000/2.400
45
2x2
2
12,4
42
45
3
2.450x800
2.175
1.500/3.600
60
2x2
2
10,4
35,4
55
3
2.750x800
2.175
1.500/3.600
45
2x2
2
12,4
42
75
3
2.750x800
2.900
2.000/4.800
60
2x2
3
10,4
35,4
110
3
3.100x1000
Loading capacity/litres
Fresh concrete/litres
Compacted concrete/litres
Average time per cycle/sec.
Max. aggregate grain size/mm
Pan motor/kW
Mixing blades/number
Hyd. unit power supply/kW
Weight (without skip)/kg
625
500
75
0-100
18,5
12
1,5
2.800
750
940
750
75
0-100
22
16
1,5 1,5
3.100
1.125
1.250
1.000
75
0-120
2x18,5
12
4.300
1.500
1.670
1.335
75
0-120
2x22
16
1,5
4.650
2.000
2.080
1.670
75
0-120
2x30
16
1,5
5.400
2.500
2.500
2.000
75
0-150
2x37
12
1,5
6.700
3.000
3.125
2.500
75
0-150
2x45
12
1,5
7.800
3.750
3.750
3.000
75
0-150
2x55
16
1,5
9.000
4.500
5.000
4.000
75
0-150
2x75
16
1,5
10.800
6.000
Technical characteristics
Model ORU MB750500
1125750
15001000
20001335
25001670
30002000
37502500
45003000
60004000
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Overhead concrete distribution
The ORU overhead concrete transportation systemis the outcome of an engineering effort aimed at achieving maximum functionality
and safety. The choice of the ORU concrete distribution system enables the prefabrication operator to draw the greatest advantage from
the production capacities of his plant and, at the same time, to achieve a significant reduction of the labour and costs involved in the
transportation of the concrete. The ORU transportation system makes it possible to maintain intact the characteristics of the concrete up
to the casting phase. Each phase of operation takes place in full compliance with applicable safety standards.
VARIABLE SPEED HYDRAULIC TRANSLATION
The overhead skip is provided with a variable delivery hydraulic system. This system makes it possible to vary the maximum speeds, the
speed on a curve or an incline, the approach speed, and the hopper rotation speed, based on the actual operating conditions.
MAXIMUM COMPACTNESS
The shape of the hopper makes it possible to carry all types of concrete without any wasted space. The compact length and height of the
skip also favour the use of the overhead travelling skip in existing plants.
Twin-rail overhead skip with discharge and rotation
The discharge with rotating skip is particularly suitable for fluid
concrete, as this type of hopper guarantees maximum tightness,
and the discharge system is particularly versatile. The skip can
rotate to the right or left and can be stopped at any angle. This
type of rotation allows a thor ough washing of the hopper.
Twin valve
The discharge with a twin-valve hopper is particularly suitable for
semi-dry and, especially, dry concrete. With this type of hopper it
is possible to supply paired hoppers.
Monorail
For long travelling distances, with many curves, in the presence of
more or less sharp grades and switching points, the monorail
version is more suitable.
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Thanks to a PLC-controlled electro-hydraulic system, it is possible to
guarantee a complete control of all the parameters of the overhead
travelling skip. The software allows an independent operation of the
unit and its complete control through the power bus-bar.
Washing and maintenance station
The automatic washing equipment for the overhead skip consists of
a pumping unit with a 1000-litre tank, a washing head with mobile
jet, a collecting funnel with discharge, electrical system, timers,
tubes, fittings and accessories.
The ORU overhead transportation system is generally provided with a casting crane that can be of bridge type, or of semi-portal
or portal type, with operator on board and with automation features depending on the specific requirements of every customer.
The bucket moving in any direction makes it possible to distribute the concrete in formworks of different shapes and sizes
without the need of additional lifting or transportation means. On specific request, the bucket discharge system can be of
different types: twin-valve, with rotating chutes, with wider mouths for discharging on extruders, with rotary hopper for
discharging the concrete in a longitudinal or transversal direction. ORU can in any case supply special casting cranes to suit the
requirements of the customer.
Technical characteristics
Model ORU FLY 1000 1500 2000
Hopper capacity/litres 1.650 2.480 3.300
Hopper capacity/kg 2.400 2.400 4.800
Driving wheels 2 m/sec/n 2 2 4
Driving wheels 3 m/sec/n 4 4 4
Power 2 m/sec/kW 11 15 18,5
Power 3 m/sec/kW 15 18,5 22
Weight/kg 1.800 2.200 2.400
IDC average bending radius/mm 2.000 2.500 3.000
IMC average bending radius/mm 1.500 2.000 -
Dimensions in mm
Model ORU FLY 1000 1500 2000
A 1.170 1.330 1.730
B 860 1.000 1.000
C 1.592 1.792 2.192
D 2.485 2.690 3.090
E 3.590 4.300 4.700
F 1.450 1.700 1.700
G 1.200 1.700 1.700
H 700 800 1.700
I 1.550 1.740 1.780
L 1.780 2.050 -
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Accessories
Automatic volumetric additive system (ADV)
The system consists of:
- Motor gear pump of 7.5 l/min capacity - 0.25 kW
- Graduated cylinder
- Electric control panel
- Outflow tube
- Inflow tube
The quantity to meter is determined by the position of the proximity sensor
(adjustable on graduated rod). The cylinder batching and emptying phases are
carried out automatically in relation to the batching plant production cycle.
Timed automatic additive system (ADT).The system consists of:
- Motor gear pump of 7.5 l/min capacity - 0.25 kW
- Electric control panel
- Flow meter
- Outflow tube
- Inflow tube
The additive is metered by means of a timer that starts and stops the pump
according to the amount of additive required. The system is provided with a flow
meter, which stops the pump in case of lack of liquid in the circuit.The delivery
of the pump can be adjusted to a proper volume/time ratio. The operation of
the equipmen t is linke d to the auto matic prod uction cyc le of the b atching pl ant.
Additive and colour weighing hoppers
The system includes metering equipment for both additives and colours in liquid
or powder form.
The concrete separator(supplied on request) is an essential item of equipment
for recovering the aggregate and washing water from th e truck mixers and mixers.
The separator puts an end to the problem of formation of concrete stockpiles
in the building yard and of free discharge of the water, thus avoiding negative
ecological impacts on the environment.
Color mix
Technological solutions for the color mix.
Moisture control for aggregate and mixture
Resistive or microwave hygrometric instruments interfaced with ORU control
units are available to control the moisture in the aggregate as well as in the
mixture in the pan.
Dust suction
Ecological systems for smoke and dust abatement in the mixing area.
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References
Le Officine Riunite - Udine S.p.A.Concrete Machinery Division
Via Santa Caterina, 35
33030 Basaldella di Campoformido (UD) Italy
tel. 0432-563911 - fax 0432-562131
e-mail: [email protected] - www.imergroup.com
Sales Department
Piero Forasassi: Sales Manager
Export
Michele Sebastiani: area manger
Stefano Rodaro: Foreign Sales Department
Adele Bianco: Foreign Sales Department
Cristina Bianchi: Foreign Sales Department
Grillo Helga: Foreign Sales Department
Italy
Alfonso Sciandra: Area Manager
Paolo Berton: Area Manager
Massimo Grosso: Area Manager
Gianna Pizzutti: Italian Sales Department
Pierpaolo Turri: Italian Sales Department
Sales processing
Valdino Bassi
Order Processing - Shipping
Nerina Montico
Marketing
Loredana Viel
Operations Manager
Luciano Pennati
Project Department
Nicola Da Riol
Project Manager
Denis Pitton
Spare Parts & Service DepartmentLorenzo Maestroni: Manager of Spare Parts & Service Department
Malvio Leita:Spare Parts & Service Department
Alessandro Marchetti: Spare Parts & Service Department
Andrea Carta: Spare Parts & Service Department
Mario Cristin: Spare Parts & Service Department
Administrative Office
Gianfranco Lorenzut: Administration Management
Mariolina Murianni: Administrative office
Susanna Tondolo: Administrative office
Le Officine Riunite - Udine S.p.A. reserve the right to change the information contained herein without prior notice when they consider it justified. The data and dimensions are
therefore not to be considered as binding. The illustrations may include accessories and therefore they could be slightly different from the standard versions of the equipment.
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Via Santa Caterina, 35
33030 Basaldella di Campoformido (UD) Italy
tel. 0432-563911 - fax 0432-562131
e-mail: [email protected] - www.imergroup.com
Le Officine Riunite - Udine S.p.A.Concrete Machinery Division
Mod.
24-ed.
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005