L型井采空区瓦斯抽采技术的应用
Mining Safety & Environmental Protection(2016)
Abstract
为解决寺河矿3313采煤工作面回采过程中上隅角瓦斯浓度高的问题,运用地面井施工新技术,在3313工作面煤层顶板裂隙带施工一口水平井,利用地面瓦斯抽采泵站通过L型井对采煤工作面的采空区瓦斯进行抽采.地面L型抽采井运行后,平均抽采瓦斯纯量为16.74 m3/min,瓦斯浓度为70%~90%,日均抽采瓦斯纯量约2.4万m3.在采煤工作面日产量增加约2500t的情况下,回风流中平均瓦斯浓度降低约0.11%.
MoreAI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined