煤炭工程 ›› 2013, Vol. 45 ›› Issue (10): 119-121.doi: 10.11799/ce201310039

• 装备技术 • 上一篇    下一篇

矿用新型多功能孔口防喷—降尘装置在车集煤矿的应用

张龙洋1,马恭利1,王宽2,史显锋1   

  1. 1. 河南煤业化工集团永煤公司车集煤矿
    2. 中煤科工集团重庆研究院
  • 收稿日期:2013-06-04 修回日期:2013-07-03 出版日期:2013-10-10 发布日期:2013-10-24
  • 通讯作者: 王宽 E-mail:wangkuan210a@163.com

The Application of New Type and Multifunctional Blowout Prevented and Dust Controlled Device with Mining in Cheji Mining

  • Received:2013-06-04 Revised:2013-07-03 Online:2013-10-10 Published:2013-10-24

摘要:

在高瓦斯矿井井下或突出煤层中施工瓦斯抽放钻孔时,时常会出现“喷孔”现象。为了消除该现象,确保钻孔施工安全,降低钻孔施工过程中产生粉尘的浓度,本文提供了一种矿用新型多功能孔口防喷-降尘装置,其工作原理简单,密封性较好,且可在井下方便、快捷地操作、应用。该装置在车集煤矿2709回风巷施工瓦斯抽放钻孔过程中应用后,表明:在已完成的127个钻孔的施工过程中使用该装置后,并未出现“喷孔”现象,瓦斯传感器的显示浓度最高未超过0.4%,单孔成孔过程中平均浓度均在0.1~0.3%,一氧化碳传感器显示数据均在10~20ppm;在其中20个钻孔的施工过程中采集的粉尘浓度数据最高未超过85mg/m3,平均单孔成孔产生的粉尘浓度均在35~60mg/m3。

关键词: 瓦斯抽放, 喷孔, 粉尘, 一氧化碳

Abstract:

In order to eliminate the phenomenon of jet orifice on the underground of high-gas coal mine or outburst coal seam about drilling holes, ensure the safety of drilling construction, and reduce the concentration of dust in drilling construction, this paper provides a new type and multifunctional blowout prevented and dust controlled device in mine. Its working principle is simple and sealing is better. It can be manipulated and applied quickly and easily in the underground. The application of this device on drilling construction on blowout prevented and Dust Controlled in the 2709 return airway of Cheji coal mine, showed that: the phenomenon of jet orifice does not appear after using this device during construction process with the completed 127 drill holes, and the highest concentration of the gas sensor of the display does not exceed 0.4%, the average concentration ranges from 0.1 to 0.3 % during construction process with the single drill hole, and carbon monoxide sensor data are displayed from 10 to 20ppm; the highest dust concentration does not exceed 85mg / m3 with 20 of those holes in which the construction process of the data collected , the average hole into the hole concentration of dust generated in the 35 to 60mg / m3 .

Key words: Gas drainage, jet orifice, dust, carbon monoxide