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我矿是年产100万吨的高沼气矿井,采区自然发火严重。根据《煤矿安全规程》的要求,必须对采空区进行预防性灌浆。同时我矿为厚煤层倾斜分层采煤法,也必须进行铺笆灌浆工作。灌浆工作量大,年消耗黄土一万吨左右。以前我们沿用旧方法,人工操作高压水管冲击黄土搅拌成浆。这种方法虽
Mine is an annual output of 1 million tons of high-methane mines, mining area naturally angry seriously. According to “Coal Mine Safety Regulations” requirements, the gob must be preventive grouting. At the same time mine for the thick seam inclined stratified mining method, also must carry out the work of paving the grout. Grouting workload, the annual consumption of loess 10,000 tons. In the past, we follow the old method of manually operating the high-pressure water pipe to stir the loess into slurry. Although this method