高瓦斯不易自燃煤层瓦斯燃烧事故引火源分析

Ignition Source Analysis of Gas Burning Accident for High Gas Seam with Low Spontaneous Combustion Tendency

随着开采深度的增加,矿井老巷、老空区增多,高瓦斯不易自燃煤层瓦斯燃烧事故也随之增多,准确分析引火源是预防和处理此类事故的关键。引用矿压、煤自燃、采空区瓦斯流动、瓦斯燃烧等理论,以祁东矿6135工作面瓦斯燃烧事故为例进行分析,确立煤自燃是此次瓦斯燃烧事故的点火源;在准确分析引火源产生和火灾传递过程的基础上,制定了封闭火区治理方案并实施,火区得到快速治理。

With the increase of mining depth, the number of old roadways and goaf rises up, and these may be the reason of the rising gas burning accidents of high gas seam with low spontaneous combustion tendency. An accurate analysis of the ignition source is the key to the prevention and treatment of such incidents. By the theories of underground pressure, coal spontaneous combustion, gas flows in goal and gas burning, the gas burning incidents in 6t35 working face of Qidong Mine are analyzed, it find that spontaneous combustion is the source of the gas burning accident. Then a program of closing fire zone is formulated and implemented before the fire zone is trea- ted in a short time.