煤炭工程 ›› 2015, Vol. 47 ›› Issue (9): 94-96.doi: 10.11799/ce201509031

• 研究探讨 • 上一篇    下一篇

瓦斯抽采钻孔新型高水材料封孔性能的研究与应用

宋吴兵   

  1. 中国矿业大学
  • 收稿日期:2015-02-13 修回日期:2015-04-21 出版日期:2015-09-11 发布日期:2015-10-09
  • 通讯作者: 宋吴兵 E-mail:wubingsong@126.com

The Research and Application of New High Water Material Sealing Performance in Gas Drainage Borehole

  • Received:2015-02-13 Revised:2015-04-21 Online:2015-09-11 Published:2015-10-09

摘要: 为了改善煤矿瓦斯抽采钻孔封孔效果,提高瓦斯抽采的浓度,针对传统封孔材料封孔效果不佳、操作复杂、成本较高等缺点,提出了利用新型高水材料封孔的方法。该材料以A料(煤矸石)为基料,配以B料(生石灰、膨胀剂、脱水剂、偶联剂等)。当质量比A料∶B料∶水=1∶1∶4时,封孔效果达到最佳,并在西山煤电集团官地矿进行了成功的应用。结果表明:应用新型高水材料后瓦斯抽采浓度可提高35%~50%。

关键词: 瓦斯抽采, 注浆封孔, 新型高水材料, 抽采浓度

Abstract: In order to improve the borehole sealing effect and the gas drainage concentration of coal mine underground.Based on the shortcomings of the traditional sealing material,such as sealing effect is poor,complex operation and high cost,put forward the method of using new high water material.The material which is based on A (coal gangue powder),using B as adjuvant(quicklime,expansive agent ,dehydrating agent,coupling agent etc).when the mass ratio of A: B: H2O=1:1:4,sealing effect to achieve the best,and the successful application in Guandi Coal Mine of Xishan Coal Electricity Group Company.The result showed that application of new high water material can be increased gas drainage concentration by 35%-50%.

Key words: gas drainage, grouting and sealing, new high water material, concentration

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