HEMM – PRESENT AND FUTURE TREND
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Transcript of HEMM – PRESENT AND FUTURE TREND
HEMM – PRESENT AND FUTURE TREND
Kunal Dahasahasra Saurabh Puttewar Dhiraj Patil
BE 6th Semester
Rajiv Gandhi College of Engineering Research and Technology, Chandrapur, Maharashtra - 442403
www.rcert.co.in
SURFACE MINING
Out of the total production of minerals 80% of production belongs to surface mining, and in this share 88% comes from the coal sector by surface mining.
Indian Mineral Scenario Total 86 minerals 4 fuels 10 metallic 46 non-metallic 3 atomic 23 minor minerals
Type of Mineral
Way of Mining
Total share
Bauxite LimestoneGypsumIron oreDolomite
Open Pit Mining
100% by opencast methods
CoalCopperLead-zincManganese
Either opencast or underground method
50-60% by either of any method
UraniumGoldSilverNickelLead
By only underground method
100% underground method
EQUIPMENT SYSTEM
Dozer – Pay-loader Scrapper Shovel – Dumper Shovel – Dumper – Dragline Bucket Wheel Excavator – conveyor -
spreader In-pit Crushing and Conveying Technology Continuous Surface Miners Highwall Mining
HEAVY EARTH MOVING MACHINERIES
Drill Dozer Pay – loader Scraper Rope Shovels Hydraulic Excavator Backhoe Excavator Bucket Wheel Excavator Continuous Surface Miner Dumper Belt Conveyor
FUTURE TRENDS FOR INCREASING PRODUCTION IN COAL SECTOR: Production growth envisaged from 06-07 level is
148 million tonns in XI plan (2011-12) i.e. 47% & further 141 million tonns in XII Plan (2016-17)
This necessitates Introduction of higher size equipment to work at a larger Stripping ratio in mines not less than 10-15 Mtpa. RBH 400 mm drills Dozers up to 1000 Hp Rope Shovel up to 42 Cu.m 10 Cu.m Rope shovel & 85t/100t/120t dumper to
continue as backbone 10 -15 Cu.m Hydraulic shovel with 850Hp dozers Draglines with bucket capacity of 44-55 Cu.m
Rear Dumper – 240 tonns In-Pit Crushing and Conveying technology as an
alternative for large volume handling High wall mining Trolley assist dump truck for long distance haul Use of mobile crushing unit Use of larger IT oriented systems in mining
operations.
DRILLS Application:- Drilling Working Parameters: (DR-460)
Hole range 251-311 mm Max. drilling depth 75 m Feed Pull-down 356 k-N Existing: Diameter 110 to 311 mm
Future : Up to Diameter 400 mm Noiseless operation Twin Drill Technology
Features: GPS System Performance monitoring Comfortable cabin design with excellent
visibility and good hole spotting. Highly productive single and multipass
drill, standard low pressure air for rotary drilling.
Full, extra-wide perimeter walkway for improved access and service security that allows the operator and service technicians free access around the rig.
Optional extreme environment package for operation in high elevation and arctic conditions.
Twin Drill Technology
Rotary Drill Rig
ROPE SHOVEL Application: Excavation and loading of Ore
and Overburden. Working parameter:
Bucket Size: 10 Cu.m Max. Digging Radius: 17.12 M Max. Digging Height: 13.03 M Max. Dumping Radius : 14.61 M Max. Dumping Height: 14.27 M
Existing: 4 to 24 Cu.m Bucket Capacity Future:- Up to 42 Cu.m Features:-
More productivity Robust Use in hard strata. Improved performance and reliability. Lower energy cost versus diesel hydraulic
excavators Load Cells with bucket Analyses the blast efficiency
HYDRAULIC EXCAVATOR Application: Excavation and Loading of Ore
and Overburden Working parameter:
Operating Weight : 200 tonns Bucket Capacity : 11.2 Cu.m Maximum Dump Height: 10 m
Existing: 1.2 to 34 Cu.m Bucket Capacity Future:- Up to 45 Cu.m Features:- Reliability and Durability
Robust structural design Productivity
Powerful digging forces Easy bucket filling
Buckets and Wear Packages to suit all material densities and ground conditions
Large Comfortable Cab Large volume cab with full view front
window increases operator view Comprehensive climate control (AC, filter
ventilation)
BACKHOE EXCAVATOR
Application: Watery condition, Soft strata Working Parameter:
Operating Weight : 845 to 900 tonns Bucket Capacity : 1.70 to 4.38 Cu.m Digging Depth: 1 to 12 m Maximum Reach: 1 to 18 m
Existing: 1.2 to 34 Cu.m Bucket Capacity Future:- Up to 55 Cu.m Features: Reliability and Durability
Robust structural design Provided with load cells
Productivity Powerful digging forces Easy bucket filling
Large Comfortable Cab Well elevated operators position
provides superior all around view Comprehensive climate control with
pressurized, filtered air ventilation and air conditioning
PAY LOADER
Application: Short transport, In-Pit Crushing and Conveying
Working parameters: Fly wheel :191 Hp Operating weight : 18 tonns Bucket capacity : 2.9 – 4 Cu.m Dumping height loader: 1 to 3 m
Existing: Up to 10 Cu.m Future: 23.5 to 45.8 Cu.m High productivity:
Largest bucket capacity Remote boom positioner Low fuel consumption Hi-cab Extra dumping clearance and reach
High reliability and durability: High rigidity frames
Easy Maintainace: Equipment Management Monitoring
System (EMMS)
DRAGLINE Application: Handling mass OB Working parameter: 24 x 96
Boom length : 74 - 95 m Bucket Capacity (nominal): 26 - 34 cu m Dump height : 38 - 40 m Digging depth : 44.3 - 53.4 m Operating radius : 64.6 - 88.2 m Walking speed : 0.24 km-ph
Existing: 4 to 32 Cu.m Future: 45 up to 55 Cu.m Features:
Large Boom length advantage Increased efficiency More tonns of ore uncovered in less time Lower dilution of Ore Increased Safety Displaying the position & heading of
supporting machine near dragline
DOZER Application: For dozing purpose Working parameters: 220Hp
Operation weight: 23800kg Dozing capacity(m3): 8.4 Blade width (mm): 3500
Existing: 220 to 720Hp Future: 860 to 1500 Hp Features: When it comes to crawler dozers, bigger really is
better More efficient: They push more material per hour,
and per shift, for a lower overall cost per yard Automatic lockup torque converter saves fuel and
increases speed and power transmitting efficiency on long pushes
ECMV (Electronic Controlled Modulation Valve) controlled steering clutch/ brakes system facilitates steering operation.
BUCKET WHEEL EXCAVATOR Application: Mining of Week, Un-consolidated
ground Working Parameters:
Materials to be handled: Overburden Nominal capacity: 6500 m3/h Bucket capacity: 1400 liters Block height: 30 m Length of bucket wheel boom: 32 m
Existing: Up to 2100 liters Future: Up to10,000 liters Features:
Robust structural design Can work in soft to moderate strata More no of Buckets with huge bucket
capacity With higher production rates.
Bucket wheel excavator used for the project Neyveli Mine II, India.
CONTINUOUS SURFACE MINER
Application: Selective mining Working Specification:
Cutting width : 7100 mm Cutting depth/height: 0 to 2900 Weight: 540 tonns
Existing: Up to 190 Cu.m/hr Future: Up to 326Cu.m/hr Features:
Can handle soft to moderate strata Less ore loss and dilution Improved ore recovery especially in areas
sensitive to blasting Primary crushing and fragmentation of
ore Reduced capacity requirements for coal
washing/preparation plants
DUMPER Application: Material transport Working Specification:
Maximum gross vehicle weight :78 tonns Capacity: 45.2 Maximum Travel (mph): 43.5
Existing: 35 to 240 tonns Future: Up to 400 tonns Features:
Advanced Hill Start Hydro-pneumatic suspension designed for
optimum performance and ride Provided with GPS Technology
Environmentally Friendly Fuel efficient engine Low noise retarding
Reliability Features Steering and brake accumulators Hydraulically actuated multiple-disc wet
brakes Operator Environment
Ergonomically designed spacious cab with excellent visibility
Fully adjustable driving position settings Advanced dash panel with payload display AM/FM/CD/MP3/USB radio Trolley Assist Dump Truck
Application: Long Transport Working Specification:
Belt width: 1200 mm Belt length: 10/20 m & 20-40 m Power required: 7.5/11 Kw & 15-30 Kw Belt Speed (m/s):1.3-2.0 Capacity (t/h): 200-400
Existing: Up to 3 m width Future: Up to width of 4 m Features:
Strong transferring capacity Simple structure, Easy maintenance,
Energy-saving Long conveying distance More portable Continuous fast delivery Quick and easy installation Noise reduction
BELT CONVEYOR
CONCLUSION
Application of high-end technology equipment in conjunction with efficient production practices thus appears to be the requirement and future trend of Indian surface mining sector. The focus in indigenous sector is on increasing the overall configuration & efficiency of HEMM by beginning of the introduction of the most modern and fully mechanized equipments. There is huge potential for rapid introduction of these equipments, which will dramatically increase required production, productivity and safety of existing surface mining operations in the years to come.
THANK YOU