2024-08-29_PERMIT FILE - C1980007 (2)

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West Elk Mine 2.05-42 Rev. 11/04, 03/06, 04/06 & 05/06- PR10; 08/09- TR118; 08/09-TR119; 09/09- MR357; 01/10- TR120; 10/12- MR-388 From the stacking tubes, the 54-inch underground conveyor reclaim system transports the coal to a double-roller crusher. This conveyor has a capacity of 1,500 tons per hour and will travel at 550 feet per minute. The crushed coal is transported to the screening plant on a 60-inch high- angle conveyor belt with a capacity of 1,500 tons per hour. Product-sized coal that passes through the screens is transported to the silo conveyor belt (S-1) on a 48-inch, 1,500 tons per hour conveyor belt. Over-sized material is transported to the rotary breaker on a 48-inch high- angle conveyor with a capacity of 300 tons per hour. Product-sized material that passes through the rotary breaker is transported to the silos on conveyor S-1, and oversized material is dropped into the reject bin. Conveyor TC-1 is a 350-foot long, 36-inch wide conveyor belt designed to convey ROM coal material from a dozer/loader-fed hopper near the run-of-mine (ROM) coal stack tube ST-1 stockpile to the TC-1/PR-2 Transfer Tower. The ROM coal material is transferred from the TC-1 conveyor to the PR-2 conveyor within an enclosed portion of this tower. The Transfer Tower & Scalping Station will be approximately 20 feet wide, 40 feet long and 50 feet tall, and will house a single 8’ wide by 24’ long vibrating screen to remove the oversize coal material and drop it into a concrete walled pit at ground level. ROM coal material that passes through the screen will be directed onto plant feed conveyor PR-2. Conveyor PR-2 is a 2,000-foot long, 48-inch wide conveyor designed to convey ROM coal material from conveyor TC-1 via the Transfer Tower and Scalping Station to the Preparation Plant located on the LRP mine facilities bench. This conveyor follows the ground for approximately half its length and is elevated using bent (open structural-steel support) structures of varying length for the other half of its length. The S-1 conveyor belt to storage Silo No. 1 and Silo No. 2 has been upgraded from a 42-inch to 48-inch width belt. The conveyor belting is covered by a semi-circular corrugated galvanized metal cover. Primary and secondary walkways were constructed along the conveyor. The conveyor structures are steel. Crushed (product-sized) coal stack-tubes, storage areas and reclaim systems are fed by a 48-inch conveyor from the top of Silo No. 2 to the top of the ST-4 stack-tube. The conveyor belt has a capacity of 1,500 tons per hour. As described below, a 48” reversible conveyor can convey product coal to and from stack tube ST-5. Product coal is also conveyed from the preparation plant via two side-by-side 36” conveyors to ST-5. A dozer trap and 48-inch reclaim conveyor located west of the silos, has the capacity to reclaim coal from the silo pad of 1,500 tons per hour. A 72-inch belt conveyor carries coal from the storage silos to the over-the-track train loadout. This conveyor has a capacity of 6,000 tons per hour and runs at a speed of 850 feet per minute. Total length is approximately 600 feet. The conveyor is covered by a semi-circular corrugated galvanized metal cover. The portion of the conveyor that crosses the North Fork of the Gunnison River and State Highway 133 is completely enclosed. Primary and secondary walkways were constructed along the conveyor. The conveyor structure is steel. ROM Stack Tubes, Underground Conveyor Reclaim System, and Crushers Construction of three stack tubes and an underground conveyor reclaim system was begun during 1991 and became operational in July of 1992. The approximately 100,000 to 120,000 tons of run-of-mine coal storage provided by these tubes is needed to handle the higher longwall