深井近距离薄-中厚煤层综采工作面瓦斯治理技术研究  

Research on Gas Treatment Technology of Comprehensive Mining Face of Deep Well Thick Coal Seam

作　　者：赵斌 Zhao Bin(Yuanxiang Coal Mine of Taiyuan China Resources Coal Co.,Ltd.,Shanxi,030200)

机构地区：[1]太原华润煤业有限公司原相煤矿,山西030200

出　　处：《当代化工研究》2023年第6期49-51,共3页Modern Chemical Research

摘　　要：针对原相煤矿深部工作面高瓦斯问题,研究了工作面瓦斯涌出来源及工作面的瓦斯涌出量,来压期间采空区瓦斯涌出量导致工作面瓦斯涌出总量增大。在此基础上提出了工作面瓦斯治理技术并用Fluent模拟了采用治理技术后的瓦斯浓度,数值模拟结果表明底板附近低瓦斯浓度区域面积增加,工作面上隅角瓦斯浓度下降。同时现场工程实践也表明回采期间上隅角和回风巷瓦斯浓度无超限现象。Aiming at the problem of high gas in working face in deep working face of Yuanxiang coal mine,the source of gas emission in working face and the amount of gas emission in working face were studied.The amount of gas emission in goaf during the pressure period led to the increase of the total amount of gas emission in working face.On this basis,the gas treatment technology of the working surface was proposed and the gas concentration after the treatment technology was simulated by Fluent,and the numerical simulation results showed that the area of the low gas concentration area near the bottom plate increased,and the corner gas concentration on the working surface decreased.At the same time,the on-site engineering practice also shows that there is no overrun of the gas concentration in the upper corner angle and the return wind lane during the recovery period.

关 键 词：瓦斯来源 数值模拟 瓦斯治理 

分 类 号：TD[矿业工程]