摘要
对某煤矿(9-15)08工作面瓦斯治理进行优化,采用以煤层预抽及高位走向长钻孔抽放瓦斯为主、回风隅角布置管路抽放采空区瓦斯为辅的综合方式,自2020年7月6日生产至今,上隅角瓦斯浓度稳定在0.6%以下,回风流瓦斯浓度稳定在0.5%以下,杜绝了瓦斯超限问题,保障了矿井安全生产。
The study optimizes the gas governance of Liuhuanggou coal mine(9-15)08 working face;adopts the comprehensive style mainly relying on coal seam pre-extraction and high&long drilling extraction of gas,and complementarily relying on air returning corner layout pipeline drainage gob gas.From July,6,2020,gas density of upper corner stabilizes below 0.6%,and that of returning current stabilizes below 0.5%.This avoids transfinite gas problem,and guarantees the mine safety production.
作者
王宁
Wang Ning(Liuhuanggou Coal Mine,Yankuang Xinjiang Mining Co.,LTD.,Changji 831100,China)
出处
《黑龙江科学》
2022年第22期29-32,共4页
Heilongjiang Science
关键词
煤层预抽
高位走向钻孔
瓦斯治理
Seam pre-extraction
High strike borehole
Gas governance
