煤炭工程 ›› 2023, Vol. 55 ›› Issue (4): 87-91.doi: 10.11799/ce202304016

• 生产技术 • 上一篇    下一篇

神东矿区综采工作面上隅角瓦斯治理技术研究

高登云1,李瑞群2   

  1. 1. 神东煤炭集团生产管理部
    2. 神东煤炭集团寸草塔煤矿
  • 收稿日期:2022-02-07 修回日期:2022-09-26 出版日期:2023-04-20 发布日期:2023-06-05
  • 通讯作者: 李瑞群 E-mail:36583390@qq.com

Study on Gas Control Technology in the Upper Corner of Fully Mechanized Mining Face in Shendong Mining Area

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  • Received:2022-02-07 Revised:2022-09-26 Online:2023-04-20 Published:2023-06-05

摘要: 为了解决神东矿区北部区低瓦斯矿井综采面上隅角瓦斯超限难题,保证综采工作面上隅角气体正常,采取多种形式瓦斯抽采治理技术,主要包含上隅角插管抽放、采空区密闭插管抽放和采空区钻孔埋管抽放工艺,瓦斯抽采率达到45%~64%,取得了很好的抽采效果,实现了对上隅角气体的有效管控。在抽采工艺应用过程中,优化了瓦斯抽放硐室设计,丰富了管路布置方式,同时配合采取辅助控制技术,工作面回采期间回风隅角瓦斯浓度显著降低,解决了综采工作面回采期间回风隅角瓦斯局部积聚超限的现场难题。

关键词: 低瓦斯矿井, 综采工作面, 瓦斯抽放, 抽放硐室, 抽放工艺

Abstract: In order to solve the problem of gas overrun in the upper corner of the fully mechanized mining face of low gas mines in the northern area of Shendong mining area, a comprehensive treatment technology focusing on gas drainage is adopted, and the drainage processes of upper corner intubation drainage, goaf closed intubation drainage and goaf borehole buried pipe drainage are adopted, together with corresponding auxiliary control technologies, At the same time, the design of the gas drainage chamber and the layout of the pipeline are optimized and improved. By adopting the above technologies, the gas concentration in the return air corner is significantly reduced during the mining of the working face, and the gas extraction rate of the working face reaches 45 ~ 64%, which solves the problem of local accumulation and overrun of the gas in the return air corner during the mining of the working face, This paper introduces the gas control technology of fully mechanized mining face in Shendong mining area.

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