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Chapter II <br /> Rock and refuse materials removed from the coal at the preparation plant are <br /> conveyed to the coal refuse disposal area, known as the Sutey Pile, by covered <br /> conveyor belt. <br /> The Adit/Rock Tunnel will, on completion, extend laterally to access the workings of <br /> Entries #3, #4 and #5. These are on stand-by status, awaiting an improvement in <br /> market conditions for coal. If production resumes through these entries prior to <br /> completion of the Adit/Rock Tunnel, mine operations are as follows: <br /> Coal is transported from the working section by conveyor belt, up to the portal, then <br /> discharged in the portal area. From the portal area, the coal will then be hauled by <br /> truck down the haul roads to raw coal storage. <br /> Men/materiel will be transported to/from the portals over the haul roads. Between <br /> the portal to working sections of the mine, men/materiel will be transported by <br /> mantrip. <br /> b. Major Equipment. <br /> The major equipment and its use in underground coal production is as follows: <br /> (1) Mining. <br /> Longwall shearer. <br /> Function: cuts the coal in a longwall system. <br /> Continuous miner. <br /> Function: cuts coal, conveys it from the face. They're used to advance headings in <br /> solid coal, including entries for main slope development, exploration, ventilation, and <br /> in preparation for retreating and advancing longwalls. They're also used to "pull <br /> pillars" in room-and-pillar operations. <br /> (2) Coal Loading and Transportation. <br /> Longwall face conveyor. <br /> Function: Transports coal from the longwall face to the stage loader. It runs parallel <br /> and adjacent to the face and is located between the face and the shields. <br /> Longwall stage loader. <br /> Function: Receives coal from the face conveyor, loads it onto the entry belt <br /> conveyor. <br /> Underground conveyor system. <br /> Function: Tranports coal from the working face to the surface, and raw coal storage. <br /> Overland conveyor system. <br /> Transports coal from portal to storage. <br /> 4 <br />