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| Research and application of gas comprehensive prevention and control technology in multi-seam minig face |
| Zhang Li 1,2 |
| 1. Shanxi Jinshen Energy Co., Ltd., Xinzhou 036599, China; 2. Taiyuan University of Technology, Taiyuan 030024, China |
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Abstract In view of the high gas in the process of multi-coal seam mining and the influence of mine safety mining, the method of source prediction is proposed to predict and analyze the gas source in the coal seam of the working face. According to the results of gas source analysis, comprehensive gas control measures and schemes are formulated, such as gas drainage in the coal seam, separate drainage in adjacent coal seams, gas drainage in goaf of working face, and establishment of ' U ' type mine drainage system. The results show that the gas concentration and air discharge of the working face are significantly reduced, the maximum absolute gas emission of the working face coal seam is reduced from 5.8 m3/min to 3.9 m3/min, and the maximum gas concentration of the air discharge of the working face is reduced from 0.45% to 0.19%. During the mining period of the working face, there are no accidents such as abnormal gas concentration and gas overrun, and the safe and smooth mining of the working face is realized.
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| 1 ] 牛来福. 煤矿开采过程中瓦斯综合治理工作[ J ]. 当代化工研究，2019（ 17 ）：17 - 18.
[ 2 ] 韦 冬. 煤矿瓦斯治理及防治策略研究[ J ]. 能源与节能，2017（ 3 ）：18 - 19.
[ 3 ] 岳东旭. 近距离突出煤层群瓦斯综合治理技术应用研究[ J ]. 煤矿现代化，2020（ 4 ）：73 - 75.
[ 4 ] 李晓东. 工作面上隅角瓦斯综合治理技术的研究[ J ]. 机械管理开发，2016（ 5 ）：41 - 43.
[ 5 ] 张 元. 高瓦斯煤层工作面瓦斯综合治理技术及应用[ J ]. 煤，2020（ 8 ）：19 - 21. |
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