矸石混入对露天煤矿可采原煤量的影响

Effect of gangue mixing on the quantity of workable raw coal in open-pit mine

露天煤矿可采原煤量直接关系到露天矿的生产规模、服务年限及经济效益。受采掘设备的限制,露天煤矿只能剔除大于某一厚度的矸石,小于某一厚度的矸石直接混入到原煤中。分析混入矸石后对煤质的影响,进而将煤质不符合要求的煤量不计入可采原煤量。对丰富露天煤矿可采原煤量的求解具有积极意义。

The quantity of workable raw coal directly affects the scale of production,service life and economic performance in the open-pit mine.Due to the limitation of the excavate equipment,the open-pit coal mine only eliminates the coal gangue thickness in excess of some thickness.When the coal gangue thickness is less than some thickness,the coal gangue will be mixed in the coal.The article analyzes the effect of mixing gangue on the quality of coal,and the quantity of workable raw coal which are useless will not be counted,which will play an active role in the calculation of the quantity of workable raw coal.