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• 2.04.11 <br />Underground Mining Dust Suppression <br />Longwall Production per shift <br />Possible Minutes work per 10 hour shift <br />Travel Time <br />Efficiency 90% <br />Minutes worked per 10 hour shift <br />Longwall Details <br />Spray Details <br />12,130 Tons <br />600 Minutes <br />-40 Minutes <br />-60 Minutes <br />500 Minutes <br />90 Sprays <br />1.6 gpm/spay <br />Longwall consumption -gallons/12,130 tons 72,000 <br />Longwall consumption -per 6.0 million tons 29,687,000 <br />Longwall consumption -acre-feet per 6.0 million tons 109.3 <br />r 1 <br />LJ <br /> <br />PR-06 <br />/~ Pi.9o~sD <br />~ ~l 5/0 <br />Continuous Miner (CM) <br />Two required 10 hours per day for Development <br />Possible Minutes work per 10 hour shift 600 Minutes <br />Travel Time -40 Minutes <br />Efficiency 50% -300 Minutes <br />Minutes worked per 10 hour shift 260 Minutes <br />CM Details <br />Spray Details <br />CM consumption -gallons/10 Hour Shift <br />CM consumption (2) -gallons/355 Work Days <br />CM consumption -acre-feet <br />Conveyor Spays - 4 in mine <br />Transfer details <br />Spray Details <br />Consumption per transfer - 10 hour shift <br />4 Transfers <br />Consumption -acre feet for 355 Shifts <br />2.04 - 67 - <br />30 Sprays <br />1.6 gpm spray <br />12,480 gallons <br />8,861,000 <br />27.2 <br />3 Sprays <br />1.6 gpm/spray <br />2,880 gallons <br />11,520 gallons <br />12.6 <br />08/01 <br />