摘要
针对东泰矿业有限公司一号矿高瓦斯难抽极薄采煤工作面隅角瓦斯超标问题,通过对工作面通风系统进行分析,提出采用"Y"形通风方式治理回风角隅瓦斯,并优化布置了瓦斯抽放系统,改造后,经对比测试表明:工作面风流平均瓦斯浓度降低0.17%,回风流平均瓦斯浓度降低0.19%,回风隅角平均瓦斯浓度降低0.41%。
To solve the issue of the methane concentration in the corner exceeding the limitation in the mining faces of gassy and extremely thin coal seams in No. 1 Coal Mine, Dongtai Mining Industry Co. , Ltd. , the paper analyzes the ventilation system of mining faces, puts forwards to apply Y-shape ventilation to control the gas in the runway corner, and optimizes the distribution of the gas drainage system. After the reconstruction, it is indicated in the comparison test that, the average methane concentration of the airflow in the mining faces decreased by 0. 17%, the average methane concentration of the return airflow decreased by 0. 19%, and the he average methane concentra- tion in the runway corner decreased by 0.41%.
出处
《中国煤层气》
2014年第2期3-7,共5页
China Coalbed Methane
关键词
极薄煤层
隅角瓦斯
“Y”形通风
Extremely thin coal seam
gas in the comer, Y-shape ventilation
