|
|||||
|
|
| 瓦斯分源抽放技术的应用与实践 | |
| 引用本文： | 王启明,许卫东,张学博.瓦斯分源抽放技术的应用与实践[J].煤炭科学技术,2011,39(4):65-68,93. |
| 作者姓名： | 王启明 许卫东 张学博 |
| 作者单位： | 1. 河南煤业化工集团有限责任公司,安阳鑫龙公司,河南,安阳,455133 2. 安阳市主焦煤业有限责任公司,河南,安阳,455141 3. 河南理工大学,安全科学与工程学院,河南,焦作,454003 |
| 摘 要： | 为解决主焦煤矿21141回采工作面瓦斯超限问题,针对本煤层抽放中存在的钻孔工程量少、瓦斯涌出量较大、抽放率低等问题,分析了瓦斯涌出的主要来源,确定采用分源抽放技术抽放瓦斯,即在采取继续打本煤层顺层平行钻孔的同时,改进本煤层封孔工艺,使用YFF-9压风封孔器,同时结合高位钻孔抽放技术。结果表明:实施分源抽放后,工作面瓦斯抽放量一般在7.8m3/m in以上,回风流中瓦斯体积分数降至0.4%左右,上隅角瓦斯体积分数可降低至0.4%~0.9%,瓦斯超限次数显著减少,采面瓦斯抽放率达到62.3%,从而有效解决了该工作面瓦斯超限问题。 |
| 关 键 词： | 瓦斯 分源抽放 抽放工艺 本煤层抽放 高位钻孔抽放 压风封孔器 |
Application and Practices on Gas Drainage Technology with Different Resources |
|
| WANG Qi-ming,XU Wei-dong,ZHANG Xue-bo.Application and Practices on Gas Drainage Technology with Different Resources[J].Coal Science and Technology,2011,39(4):65-68,93. | |
| Authors: | WANG Qi-ming XU Wei-dong ZHANG Xue-bo |
| Affiliation: | WANG Qi-ming1,XU Wei-dong2,ZHANG Xue-bo3(1.Anyang Xinlong Company,Henan Coal Mining and Chemical Group Corporation Ltd.,Anyang 455133,China,2.Anyang Coking Coal Company Ltd.,Anyang 455141,3.School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo 454003,China) |
| Abstract: | In order to solve the gas content over limit problems in No.21141 Coal Mining Face of Zhujiao Mine,according to the less borehole engineering,high gas emission,low gas drainage rate and other problems existed in the mining seam drainage operation,the paper analyzed the main sources of the gas emission.The gas drainage technology with different gas sources was applied.While the borehole drilling in and along the mining seam continuously conducted,the borehole sealing technique in the mining seam was improved... |
| Keywords: | gas gas drainage with different resources gas drainage technique gas drainage in mining seam high level borehole gas drainage pneumatic borehole sealer |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |