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针对固庄煤矿回采过程中3个综放面末采期间均出现CO,有可能发生煤炭自燃的问题,对15705工作面采取停止放顶煤、均压通风、人防技防相结合、散热带喷洒阻化剂、易燃带注N2、撤架巷注三相泡沫等措施,使15705工作面在末采期间未出现自燃标志性气体,封闭至今2 a内,气体分析化验均正常。
Aiming at the problems of spontaneous combustion of coal during the last mining of the three fully mechanized top-coal caving faces in the process of the mining of the Zhuangzhuang coal mine, it is necessary to stop the top coal caving in the 15705 working face, Retardant, flammable with note N2, withdrawal of three-phase foam laneway injection and other measures to make 15705 face did not appear during the end of spontaneous collection of signature gas, sealed up to 2 a, the gas analysis tests were normal.