综合防灭火技术在综放工作面末采的实践应用

Application of Integrated Technique for Fire Protection and Extinguishment with End-mining Operation on Fully Mechanized Top Caving Mining Ace

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 that the Carbon Monoxide appearances in all three fully mechanized top caving mining faces during end-mining period in Guzhuang coal mine, adopting the integrated technique,-containing stopping top coal, even pressure ventilation, spraying inhibitor to heat dissipation area, injecting nitrogen to inflammable area, injecting three-phase foam to the lane of removing support,prevention system with the person and technology united organically-, the fully mechanized top caving mining face No.15705 never exists spontaneous combustible gas. The assay result of spontaneous combustible gas has been normal since it was sealed two years ago.