应用沿空留巷采煤技术提高资源回收率

摘要

以屯兰矿28109工作面为例，分别对沿空留巷与一般综采两种采煤技术的采出量、回采率等方面进行了对比分析，得出沿空留巷采煤技术在回收资源方面更优于一般综合采煤技术。沿空留巷采煤技术无需留设煤柱，实现了无煤柱开采，可最大限度地提高了资源回收率，延长了矿井服务年限。%Takes 28109 working face of Tunlan coal mine as an example,respectively contrast and analyze two kinds of coal mining technology from several aspects such as produced quantity and recovery rate,of which is gob side entry retaining and general fully mechanized coal mining technology,it concludes that the coal minging technology of gob side entry retaining is superior to general fully mechanized coal mining technology in recovery resource.The coal mining technology of gob side entry retaining without coal pillar,it realizes no coal pillar mining,improves the re-source recovery rate furthest,extends the service life of the coal mine.