注氮防灭火技术在综采工作面回采期间的应用  

Application of Firefighting by Nitrogen Technology on Mining Face During Stope

作　　者：亢新华 KANG Xin-hua(Hejin Xuehu Gorge Coalmine Co.,Ltd.,Huozhou Coal Electricity Group,Hejin 043300,Shanxi)

机构地区：[1]霍州煤电河津薛虎沟煤业有限责任公司,山西河津043300

出　　处：《凿岩机械气动工具》2024年第2期32-35,39,共5页Rock Drilling Machinery & Pneumatic Tools

摘　　要：针对薛虎沟矿2-113综放工作面上隅角出现CO有害气体的问题,结合现场实际情况采取注氮防灭火技术对采空区遗煤自燃进行治理,取得良好效果,经治理后工作面上隅角CO气体浓度从23ppm左右基本降为零,保证了工作面的安全回采。For existence of harmful CO in corners of 2-113 mining faces in Xuhu Gorge coalmine,the article uses the firefighting by nitrogen technology to address the self-ignition of remained coals in the gob area based on the actual conditions on sites,which leads to remarkable results.The concentration of CO in corns of the mining faces decrease from 23 ppm to around O ppm,guaranteeing the safe stope of mining faces.

关 键 词：综采工作面 注氮防灭火 采空区 遗煤自燃 

分 类 号：TD753.3[矿业工程—矿井通风与安全]