全创煤矿煤自燃火源位置的判定

Position Determination of Coal Spontaneous Combustion in Quanchuang Mine

通过对全创煤矿原火区观测孔气体和温度的检测,研究得出:原火区没有复燃的可能性。为了查明原火区与目前井下CO泄露点是否存在漏风通道,采用释放SF6示踪气体测定漏风技术,确定了原火区与目前井下3个CO异常涌出点之间没有漏风通道。综合原火区预留观测孔孔底气体和温度信息、SF6示踪气体检测漏风通道实验、探测钻孔的孔底气体和温度信息,最后判定火源位于故县全创煤矿两条巷道内。

By measurement of gas and temperature of observation well in original fire zone in Quanchuang Mine, the study concludes the impossibility of recombustion. To check if air-leaking passages exist in the original fire zone and CO leakage points, SF6 tracing gas was released to measure air leakage.The technology determined that there were no air-leaking passages in the original fire zone and three CO emission points. In combination with the gas and temperature data of the observation well, the air leakage experiment with the SF6 tracing gas, and the gas and temperature data at the bottom of detection drilling holes, the fire position was located in the two roadways of Quanchuang Mine.