开滦矿区综采放顶煤工艺煤炭采出率的分析

为了提高综采放顶煤煤炭采出率,结合开滦矿区放顶煤实践,统计分析了煤炭损失构成、形式和数量等,简要介绍了开滦范各庄、唐山矿采用在后部输送机加装尾煤回收装置;采用将工作面输送机机头、机尾布置在巷道中,对端头支架进行放顶煤提高煤炭采出率的技术方法.以及提高综采放顶煤的采出,减少煤炭损失的其他技术途径.

Analysis on coal mining rate of fully mechanized top coal caving mining in Kailuan Mining Area

In order to improve the coal mining rate of the fully mechanized top coal caving mining, in combined with the top coal caving practices in Kailuan Mining Area, the paper had a statistics and analysis on the coal lost composition, form and quantity. The paper intro- duced the tail coal recovery devices equipped with the real face conveyor applied in Fangezhuang Mine and Tangshan Mine. The head and tail parts of the face conveyor were placed in the mining gateways and the top coal caving operation was conduct...