METHOD FOR MINING PITCHING AND STEEPLY PITCHING COAL SEAMS Russian patent published in 2008 - IPC E21C41/18 B65G15/26 

FIELD: mining industry.

SUBSTANCE: method is intended to be used in the mining industry for extraction of coal and other minerals from pitching and steeply pitching seams. The cutter/loader moving along the stope by a pulling cable pulls belt out of the telescopic part of the belt-type conveyor using a run-around roller pivotally connected to the tail end of the loader. The conveyor belt, with its working side being furnished with fins, after leaving the telescopic part, is directed to the stope space by the deflection assembly, the working side of the belt facing the seam roof. The run-around roller at the tail end of the loader turns the belt so that the belt working side faces the seam floor, and the belt moves in the belt road direction. The coal cut by the cutter/loader gets under the loaded part of the belt by gravity and is dragged along the seam floor to the belt road, covered by the belt. The seam pitch being high enough to provide for coal transportation along the stope by gravity, the working part of the conveyor belt decelerates its movement, otherwise it drags the coal along the seam floor. The cut coal covered by the conveyor belt is less prone to being carried away by the ventilation current, and thus forms less dust in the workspace.

EFFECT: increased mining efficiency thanks to forced mechanical transportation of cut coal along stope.

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