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Longwall shearer. <br /> Function: Cuts coal in a longwall system. <br /> Continuous miner. <br /> Function: cuts coal, conveys it from the face. <br /> Used to advance headings in solid coal, including <br /> entries for main slope development, exploration, <br /> ventilation, and in preparation for both retreat <br /> and advancing longwalls. <br /> Also used to "pull pillars" in room-and-pillar <br /> operations. <br /> (B) Coal Loading and Transportation <br /> Longwall face conveyor. <br /> Function: Transports the cut coal from the face <br /> and conveys it to the longwall stage loader. <br /> Longwall stager loader. <br /> Function: Receives coal from the face conveyor, <br /> loads it onto the entry belt conveyor. <br /> Underground conveyor system. <br /> Function: Transports coal from the working face to <br /> the outside portal on the surface. <br /> Overland conveyor system. <br /> Function: Transports coal from portal to storage. <br /> Reclaim conveyor system. <br /> Function: Transports coal from storage to wash <br /> plant for processing. <br /> Shuttle car. <br /> Function: Transports coal from a continuous miner <br /> to the feeder breaker. <br /> Feeder breaker. <br /> Function: Used in a continuous mining section to <br /> size and meter coal as it is deliveredto the entry <br /> belt conveyor. <br /> Entry belt conveyor. <br /> Function: Transports coal from the working section <br /> to the underground conveying system. <br /> Truck/tractor. <br /> Function: Used to transport men/materials through <br /> the adit/rock tunnel, between surface and <br /> underground workings. <br /> Crystal Springs Coal, Inc. 151 Coal Basin Hine <br />