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Clean and efficient coal mining

机译:清洁高效的煤矿开采

摘要

The present invention is a clean and efficient coal mining method applied to the field of solid waste disposal in mines. The width of the short face is designed based on the amount of solid waste (including underground waste and ground coal ash) generated in the mine. First, two adjacent short cutting faces are filled and mined, anchor bolts are supported along the edge of the filling surface and along the solid coal side, and the tunnel is reserved. A long face system is made up of a shaft reserved with two short face faces and intermediate coal. While mining the long face, skip mining on the short filling face on both sides, and also transporting the waste generated at the long face to the short face at the same time and filling it, filling and mining the short face, Realize a continuous mining system that efficiently collects long cutting faces. The present invention can treat all solid waste above and below the mine, reducing the cost of waste disposal, reducing damage to the ecological environment, and filling the mining cavities with solid waste. As a tunnel is formed, coal columns are eliminated and resource recovery rate is increased. [Selection diagram] FIG.
机译:本发明是一种清洁高效的煤矿开采方法,应用于矿山固体废物处理领域。短工作面的宽度是根据矿井中产生的固体废物(包括地下废物和煤灰)的量设计的。首先,填充和开采两个相邻的短切面,沿填充面的边缘和沿煤粉的一面支撑地脚螺栓,并预留隧道。一个长工作面系统由一个保留两个短工作面和中间煤的井筒组成。在采掘长面的同时,跳过两侧短填方的开采,并将长面产生的废料同时运至短面并填满,填充并开采短面,实现连续开采有效收集长切削面的系统。本发明可以处理矿山之上和之下的所有固体废物,减少废物处理的成本,减少对生态环境的破坏,并用固体废物填充采矿腔。随着隧道的形成,消除了煤柱,提高了资源回收率。 [选择图]

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