煤田地质与勘探Issue(3)：115-117,121,4.DOI:10.3969/j.issn.1001-1986.2015.03.024
顺煤层瓦斯抽采钻孔封孔新工艺
Hole sealing method of bedding gas drainage borehole
李孜军 1陈艳丽 1朱壮观2
作者信息
- 1. 中南大学资源与安全工程学院，湖南长沙 410083
- 2. 淮北矿业有限公司祁南矿防突区，安徽宿州 234000
- 折叠
摘要
Abstract
The gas extraction effect largely depends on hole sealing method and hole sealing quality. Aiming at the insufficient sealing depth and weakness of sealing materials of the existing sealing technology in Qinan, improve-ment measures were put forward for the exiting sealing technology. Through increasing sealing depth and adopting new sealing materials, the measures avoided short circuit air flow, reduced the consumption of negative pressure in pipeline, and made the gas extraction concentration increased by 25%~50%, eventually improving the production efficiency, and providing security for later coal mine production.关键词
瓦斯抽放/顺层抽采/封孔工艺Key words
gas drainage/bedding extraction/hole sealing technology分类
矿业与冶金引用本文复制引用
李孜军,陈艳丽,朱壮观..顺煤层瓦斯抽采钻孔封孔新工艺[J].煤田地质与勘探,2015,(3):115-117,121,4.
