综放工作面支架上方浮煤自燃火灾的综合治理

Comprehensive Treatment of Loose Coal Spontaneous Sombustion on Supports at Fully Mechanized Caving Face

1001工作面为五虎山煤矿一综放工作面,在停采回撤支架期间,在99#支架间首先发现CO严重超标(最大0.2%)、烟雾、水蒸气、煤壁挂汗和温度上升现象,并有高温区域扩大的趋势。

1001 working face is a fully mechanized caving face of Wuhushan Coal Mine. During the withdraw of coal face, the phenomemon of CO badly exceed （reach 0.2% most greatly）,fog, water vapor, condensation on the coal wall, temperature increasing were first discovered between the supports of 99#, and the area of high temperature has a trend of enlargement, facing the threat of further expansion of coal spontaneous combustion. After the problems were discovered, we got a fix on the fire source by field surveys, tests and sense data analysis, then drilled holes to inject water, solidified foam, grouting, and a series of measure to remove the hidden danger, guaranteed the .safe, tv nrodnction.