Guidance and control system automatically positions cutting drums of double-ended longwall shearer so they follow coal seam. System determines location of upper interface between coal and shale and continuously adjusts cutting-drum positions, upward or downward, to track undulating interface. Objective to keep cutting edges as close as practicable to interface and thus extract as much coal as possible from seam.
Vertical-Control Subsystem for Automatic Coal Mining
NASA Tech Briefs ; 8 , 2
1984-11-01
Miscellaneous
No indication
English
NTRS | 1985
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