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一、矿井开发简况及调整风压的意义我矿是一个已有近80年开采历史的老矿井,东翼为倾斜煤层,西翼为倾斜、急倾斜倒转煤层,可采煤层有5～7层,现整个矿井开拓水平为11、12水平。3～11水平为生产水平。年产煤310万吨。9水平以上为低沼气矿井,以下为高沼气矿井。9煤层为突出煤层,矿井东翼各煤层基本上无自然发火现象。西翼9煤层、12煤层为自然发火煤层,发火期为10个月,全矿井发火煤层储量约占总储量的
First, mine development profile and the significance of adjusting the pressure I mine is a mining history of nearly 80 years of the old mine, the east wing is inclined seam, the west wing is inclined, steep tilt inverted coal seam, coal mining can be 5-7 Layer, the entire mine is now open to the level of 11,12 level. 3 to 11 levels for the production level. Annual output of 3.1 million tons of coal. 9 above the level of low-methane gas wells, the following high-methane gas wells. Seam 9 is a prominent coal seam, and the coal seams in the east wing of the mine basically have no spontaneous combustion phenomenon. West Wing 9 seam, 12 seam is a spontaneous coal seam, the firing period of 10 months, the entire coal seam coal seam reserves of about total reserves