工作面正常回采期间防灭火技术的应用

Application of fire prevention technology during normal mining period

以ZF2809工作面为例,发现工作面在正常回采期间,两顺槽出现CO升高现象,对此,介绍了以注氮防灭火、黄泥灌浆、喷洒阻化剂、顺槽施工钻孔等综合防灭火技术的应用,经现场试验,工作面、顺槽及采空区CO浓度显著降低。综合防灭火技术抑制了CO浓度升高的趋势,取得了良好的效果,保证了工作面的安全回采。

During the normal mining period of No.ZF2809 working face,the CO concentration increased in the two mining roadways,and the comprehensive fire prevention and extinguishing technology was adopted,such as nitrogen injection,loess grouting,spraying inhibitor,and construction of drilling holes.The monitoring shows that the CO concentration in goaf and two mining roadways was decreased significantly,which ensure the safety mining of working face.