AN INTRODUCTION TO SARPI PROJECT. VARIOUS MACHINERIES DEPLOYED IN THEMINE. DEVELOPMENT AND DEPILLARINGPATTERN FOLLOWED IN THE MINE. COST OF THE CONTINUOUS MINERPACKAGE. SHUTTLE CAR:a) SPECIFICATIONSb) VARIOUS MECHANICAL AND HYDRAULICSYSTEMS IN A SHUTTLE CAR.c) SAFETY FEATURES.
BORD AND PILLAR TYPE OF MINING IS FOLLOWED. MINE IS STILL IS IN DEVELOPMENT PHASE. CONTINUOUS MINER IS USED FOR CUTTING THECOAL INSTEAD OF CONVENTIONAL DRILLINGBLASTING METHOD. DAILY PRODUCTION OF THE CONTINUOUS MINERPANEL IS ABOUT 1500 TONNES. THE DEPTH OF THE SHAFT IS 159m. 5 HEADING DEVELOPMENT IS DONE. THE WIDTH AND HEIGHT OF THE GALLERIES IS6mX4.6m. THE DIMENSIONS OF THE PILLAR IS 32mX32mX4.6m. DEGREE OF GASSINESS-II
Actually Continuous Miner is a package of machinery including-Coal Cutting Machine :- Continuous MinerCoal Hauling Machine :- Shuttle CarCoal Lump Breaking & FeedingMachine to Conveyors :- Feeder BreakerFace Supporting Machine :- QuadbolterFace & Road Cleaning Machine :- LHDPower Distribution :- Load CentreAs Continuous Miner is large underground machinery, so lowering thepackage of CM machinery can only be done through incline of proper crosssection & gradient – not through any shaft / pit.OPERATING MACHINERIES
Typical Development LayoutThe standard layout consists of a five road development, with the main conveyor and feeder breakerpositioned in the central roadway. This provides working areas to carry out all the main developmentfunctions:One heading for the CM to becuttingOne heading ready for cuttingOne heading for ventilationrearrangement and survey workOne heading for cleaning byLHDOne heading for supporting byQuadbolter
PRICE LIST OF DIFFERENT MACHINERIES IN THE CM PANELSl.No.Equipment QuantityCountry ofOriginUnit PriceUS $Total PriceUS $1 ContinuousMiner 12CM15-10D1 no. USA 2,791,265.00 2,791,265.002 Shuttle Car10SC32B2 no. RSA 934,617.00 1,869,234.003 Feeder BreakerBF14B-3-7C1 no. USA 743,312.00 743,312.004 Quad Bolter 1 no. Australia 1,183,225.00 1,183,225.005 ElectricalEquipment1 no. UK 971,115.00 971,115.00TOTAL PACKAGE VALUE – US DOLLARS 7,558,151.00(US Dollars Seven million Five hundred Fifty Eight thousand one hundred Fifty One only)
The function of shuttle car is to transport the coal that is shearedby continuous miner from the face to the place where feederbreaker is installed. Capacity of a 10SC32 shuttle is 10.19 tons and the fill factor isabout 0.85.
Joy Shuttle Car Model 10SC32B SpecificationsGeneral•Type : JOY 10SC32•Operating voltage: 1050 V•Voltage Rating: ±10%•Total Rated Power: 202.6kW2 × 85 kW Traction Motors1 × 18.6 kW Conveyor Motor1 × 14 kW Pump Motor•Weight 20,500kg (approximately) empty•Cubic Capacity : 10.19cu meters•Dimensions (l × w × h): 8.99m × 3.05m × 1.31m•Ground clearance: 290mm (Nominal)•Ground Bearing Pressure: 520 kPa empty; 830 kPa loaded•Gradient (in line of advance): Below 6 degrees. If greater than 6 degrees, a new gearwith reduction of 66.56: 1 could be used.•Cross gradient: not greater than 5 degrees•Total Service Life: 1.5 million tones
Boom lifting mechanism is present so to adjust with variabledischarge heights. Telescopic type of cylinder is used. Atmospheric vent is provided in the cylinder to prevent thecylinder from damage during roof fall condition.extend pressure: 120.6-127.5 bar.atmosphere relief pressure: 227.7 bar. Dual output pump is used 46 lpm and 34lpm. The high volume stage of pump delivers (46LPM) fluid tocable reel valve(Since here, shuttle car is in stationary mode,cable reel motor will be in stalled position) & conveyorelevating cylinder. The Low volume Stage delivers (34LPM) fluid to hydrauliccylinders in steering mechanism and Brake circuits(emergency/ park & service).
FOUR WHEEL STEERING MECHANISM IS USED IN JOYSHUTTLE CARS TO NEGOTIATE TIGHTER TURNS.
Four floor jack cylinders are provided at fourcorners of the shuttle car so that the machinecan be lifted from the ground for maintenance.
Drum limit switch Emergency stops Oil temperature Oil level Brake pressure switch E/Leakage Relays off load and on load Overloads Pre-start Alarm Emergency and Service Brakes NOTE:- All the machine have DANGER,WARNING,CAUTION, SIGNS mounted on them.