煤炭工程 ›› 2015, Vol. 47 ›› Issue (9): 62-64.doi: 10.11799/ce201509021

• 生产技术 • 上一篇    下一篇

复杂条件下孤岛综放面自燃防治技术研究

邓军1,王凯2,翟小伟1,文虎1,郭军1   

  1. 1. 西安科技大学
    2. 西安科技大学能源学院
  • 收稿日期:2014-11-27 修回日期:2015-01-28 出版日期:2015-09-11 发布日期:2015-10-09
  • 通讯作者: 王凯 E-mail:wk_stirless@163.com

Application on Fire Preventing Technology of Islet Fully Mechanized Caving Workface under Complex Condition

  • Received:2014-11-27 Revised:2015-01-28 Online:2015-09-11 Published:2015-10-09

摘要: 针对孟巴矿特厚煤层二分层1210孤岛综放面高地温高湿环境、采空区遗煤多及构造带漏风等复杂条件下开采的特点,分析了煤自燃防治的重点区域,根据生产期间不同时期工作面CO气体的变化情况,综合论证不同防灭火技术的作用效果,采用定期监测、端头封堵后复合胶体隔离、注氮惰化等综合防灭火技术,有效地阻断了煤自燃发展的必要条件,确保了1210孤岛综放面的正常生产和回收。

关键词: 煤自燃, 高地温, 高湿环境, 孤岛综放面, 分层开采, 防火技术

Abstract: According to the complex characteristic of high ground temperature, high moisture, large amount of float coal in goaf, serious air leak and big fault of 1210 islet fully mechanized caving working face located in the second layer of Mengba mine, the emphasis zones of fire preventing were analyzed. On the basis of CO gas changing of working face during mining, combined with the applicability of different fire preventing technology, the comprehensive measures of prediction, gel injection, nitrogen injection, grouting were taken to interdict the necessary condition of coal spontaneous combustion. And the normal production of 1210 working face was ensured, which provided reference for safe mining of the similar condition working face.

Key words: Coal spontaneous combustion, High temperature, High moisture, Islet fully mechanized caving face, Layer mining, Fire preventing

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