EXTRACTION CONTROLLER FOR COAL MINING
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United States of America Patent
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app pub date -
Sep 14, 2007
filing date -
Mar 17, 2005
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Abandoned
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Abstract
The invention relates to an extraction controller for coal mining comprising a central control unit above ground and a longwall face control unit at the end of the face for controlling the extraction functions of the extraction units, i.e. robbing, advancing and jigging. The longwall face control unit is equipped with a display, which is controlled by a program that is stored on a hard drive. The face control unit comprises additional read-only memory modules as program memories for storing the required function programs.
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