西曲矿综采工作面瓦斯治理技术研究

Study on Gas Control Technology in Fully Mechanized Mining Face of Xiqu Coal Mine

为解决西曲矿18202工作面上隅角和回风流瓦斯治理难题,分析了该工作面瓦斯来源,据此提出了本煤层抽放和高位裂隙瓦斯抽放相结合治理瓦斯方法,并对钻孔封孔工艺和抽放系统进行了完善。结果表明,通过瓦斯治理方案的实施,有效降低了18202工作面上隅角和回风流瓦斯浓度,解决了工作面瓦斯超限问题。

In order to solve the difficult problem of gas control in the upper corner and the return air of the 18202 working face in Xiqu Coal Mine,the gas source of the working face was analyzed.Based on this,this paper put forward the method of controlling gas by combining coal seam drainage with gas drainage in high fracture zone,and improved the borehole sealing technology and drainage system.The results show that the gas concentration in the upper corner and the return air of the 18202 working face is effectively reduced,and the problem of gas overrun is solved.