摘要
石圪台煤矿31205工作面由于埋深较浅,且上覆采空区与周边小煤窑采空区可能存在漏风通道,导致31205工作面在回采期间存在氧气浓度偏低及一氧化碳浓度超标的问题。鉴于此,在工作面回采期间采用均压防灭火技术,使工作面及采空区压力平衡,减少有毒有害气体涌入工作面。通过现场应用,采用均压防灭火技术对防治上覆采空区有毒有害气体涌入工作面效果明显,确保了工作面安全生产。
The 31205 working face of Shigetai Coal Mine is shallow-buried, and air leakage channels exist between the overlying goal and small coal mine goal, which leads to low oxygen content and excessive CO content during coal mining. In view of this, even pressure fire control technology was applied in working face mining, to balance the pressure between working face and goaf, thus, reduce the flow of toxic and harmful gases to work surface. According to field application, significant effect was achieved in keeping the toxic and harmful gas of overlying goal from the working face, and safe production of working face was ensured.
出处
《煤炭工程》
北大核心
2017年第F08期146-148,共3页
Coal Engineering
关键词
近距离煤层
漏风
有害气体
均压防灭火技术
close-distance coal seams
air leakage
harmful gas
even pressure fire control technology
