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West Elk Mine <br />Conveyors <br />Run -of -mine coal is transported from the longwall production and continuous miner <br />development sections to the various surface facilities by a system of belt conveyors. A 60 -inch <br />mine conveyor carries coal from the mine portal to the stacking tubes. At a speed of 900 feet <br />per minute, the capacity of this conveyor is approximately 3,500 tons per hour. The conveyor <br />belting is covered by a semi -circular corrugated galvanized metal cover. Primary and <br />secondary walkways were constructed along the conveyor. The conveyor structure is steel. A <br />reclaim feeder was installed on the run of mine belt near the portals in 1987. <br />From the stacking tubes, the 54 -inch underground conveyor reclaim system transports the coal <br />to a double -roller crusher. This conveyor has a capacity of 1,500 tons per hour and will travel <br />at 550 feet per minute. The crushed coal is transported to the screening plant on a 60 -inch <br />high -angle conveyor belt with a capacity of 1,500 tons per hour. Product -sized coal that passes <br />through the screens is transported to the silo conveyor belt (S-1) on a 48 -inch, 1,500 tons per <br />hour conveyor belt. Over -sized material is transported to the rotary breaker on a 48 -inch high - <br />angle conveyor with a capacity of 300 tons per hour. Product -sized material that passes <br />through the rotary breaker is transported to the silos on conveyor S-1, and oversized material <br />is dropped into the reject bin. <br />Conveyor TC -1 is a 350 -foot long, 36 -inch wide conveyor belt designed to convey ROM coal <br />material from a dozer/loader-fed hopper near the run -of -mine (ROM) coal stack tube ST -1 <br />stockpile to the TC-1/PR-2 Transfer Tower. The ROM coal material is transferred from the <br />TC -1 conveyor to the PR -2 conveyor within an enclosed portion of this tower. The Transfer <br />Tower & Scalping Station will be approximately 20 feet wide, 40 feet long and 50 feet tall, and <br />will house a single 8' wide by 24' long vibrating screen to remove the oversize coal material <br />and drop it into a concrete walled pit at ground level. ROM coal material that passes through <br />the screen will be directed onto plant feed conveyor PR -2. Conveyor PR -2 is a 2,000 -foot <br />long, 48 -inch wide conveyor designed to convey ROM coal material from conveyor TC -1 via <br />the Transfer Tower and Scalping Station to the Preparation Plant located on the LRP mine <br />facilities bench. This conveyor follows the ground for approximately half its length and is <br />elevated using bent (open structural -steel support) structures of varying length for the other <br />half of its length. <br />The S-1 conveyor belt to storage Silo No. 1 and Silo No. 2 has been upgraded from a 42 -inch <br />to 48 -inch width belt. The conveyor belting is covered by a semi -circular corrugated <br />galvanized metal cover. Primary and secondary walkways were constructed along the <br />conveyor. The conveyor structures are steel. <br />Crushed (product -sized) coal stack -tubes, storage areas and reclaim systems are fed by a 48 -inch <br />conveyor from the top of Silo No. 2 to the top of the ST -4 stack -tube. The conveyor belt has a <br />capacity of 1,500 tons per hour. As described below, a 48" reversible conveyor can convey <br />product coal to and from stack tube ST -5. Product coal is also conveyed from the preparation <br />plant via two side-by-side 36" conveyors to ST -5. A dozer trap and 48 -inch reclaim conveyor <br />located west of the silos, has the capacity to reclaim coal from the silo pad of 1,500 tons per hour. <br />2.05-42 Rev. 11/04, 03/06, 04/06 & 05/06- PR10; 08/09- TRI18; 08/09-TRI19; 09/09- MR357 <br />