煤矿火区下开采技术研究报告

摘要

The coalseam in this paper belongs to coal mines that easy to spontaneous combustion, through the Wong grouting for small kiln fire area, the mining workface under fire area uses pressure ventilation and sprays magnesium chloride inhibitor, both ends of the back of the head in mining workface builds flyash and gelling agent wall to prevent carbon monoxide and other harmful gases of small kiln fire area pouring out the mining workface and the spontaneous combustion of left coal in this workface goaf.%本文对煤层容易自燃的矿井，通过对小窑火区的黄泥灌浆，火区下采煤工作面采用均压通风和喷洒氯化镁阻化剂，采煤工作面两端头后部构筑粉煤灰和胶凝剂墙体，防止小窑火区一氧化碳等有害气体向采煤工作面涌出，也防止本工作面采空区遗煤的自燃发火。