回采工作面回撤期间防灭火技术  

Fire Prevention and Extinguishment Technology During Withdrawal of Mining Face

作　　者：裴晓春 Pei Xiaochun(Shanxi Coking Coal Fenxi Mining Rescue Brigade,Xiaoyi Shanxi 032300)

机构地区：[1]山西焦煤汾西矿业救护大队,山西孝义032300

出　　处：《山西冶金》2022年第8期145-146,149,共3页Shanxi Metallurgy

摘　　要：自燃煤层回采工作面设备回撤期间采空区遗煤存在较大自燃风险,针对3506采煤工作面设备回撤期间采空区遗煤自燃风险较高问题,提出构建以注氮为核心的综合防灭火技术,现场应用效果显著,回采工作面回撤期间采空区内CO浓度均在较低范围内,回撤通道未监测到CO。研究成果可为矿井其他回采工作面回撤工作开展提供经验指导。There is a large risk of spontaneous combustion of the coal left in the goaf during the equipment withdrawal of the spontaneous combustion coal seam working face.In view of the high risk of spontaneous combustion of the coal left in the goaf during the equipment withdrawal of the 3506 coal mining face,it is proposed to build a comprehensive fire prevention technology with nitrogen injection as the core.The field application effect is significant.During the face withdrawal,the CO concentration in the goaf is in a low range,and the CO is not monitored in the withdrawal channel.The research results provide experience guidance for other mining face withdrawal work.

关 键 词：回采工作面 自燃煤层 设备回撤 防灭火 注氮 

分 类 号：TD752.2[矿业工程—矿井通风与安全]