斜沟矿综采面上隅角瓦斯治理技术研究

Study on Gas Control Technology in Upper Corner of Fully Mechanized Face in Xiegou Mine

利用FLUENT数值模拟软件对不同通风形式下的瓦斯浓度进行分析,发现Y通风对瓦斯的治理效果最佳。同时为了解决瓦斯活跃区的瓦斯浓度大的问题,本文采取在活跃区进行埋管抽采的方式对其进行治理,发现当埋管深度为15m时上隅角与回风巷的瓦斯含量最低,为矿山治理上隅角瓦斯超限问题作出了一定的贡献。

This paper analyzes the gas concentration under different ventilation modes by using FLUENT numerical simulation software,and finds that Y ventilation has the best effect on gas control.At the same time,in order to solve the problem of high gas concentration in the active area,this paper adopts the way of buried pipe drainage in the active area to control it.It is found that when the buried pipe depth is 15 m,the gas content in the upper corner and the return air lane is the lowest,which makes a certain contribution to the control of the gas over limit in the upper corner of the mine.