七号平峒+1405 m西翼工作面采空区自燃“三带”分布规律研究

Study on the distribution law of“three zones”of spontaneous combustion in goaf of+1405m west wing working face of No.7 Adit

煤矿火灾事故多由于采空区遗煤自燃引起,而“三带”之中的氧化带是自燃现象发生频率最高的区域。为掌握综采放顶煤工作面采空区自燃“三带”分布规律,以四棵树煤炭有限责任公司七号平硐+1405 m西翼工作面为研究对象,通过现场实测工作面遗煤自燃因素,研究分析了A5煤层采空区自燃“三带”分布规律,并进行总结分析,合理确定了该工作面进风侧、回风侧采空区自燃“三带”的范围。

Coal mine fire accidents are mostly caused by spontaneous combustion of residual coal in goaf,and the oxidation zone in the"three zones"is the area with the highest frequency of spontaneous combustion.In order to master the distribution law of"three zones"of spontaneous combustion in the goaf of fully mechanized top coal caving face,taking the No.7 adit+1405 m West Wing working face of Sikeshu Coal Co.Ltd.as the research object,the distribution law of"three zones"of spontaneous combustion in the goaf of A5 coal seam is studied and analyzed through on-site measurement of the spontaneous combustion factors of residual coal in the working face,summarized and analyzed,and the air inlet side of the working face is reasonably determined The scope of"three zones"of spontaneous combustion in goaf at return air side.