煤炭工程 ›› 2016, Vol. 48 ›› Issue (10): 64-55.doi: 10.11799/ce201610021

• 生产技术 • 上一篇    下一篇

综采工作面停采期间的综合防灭火技术

张修峰1,郭庆2   

  1. 1. 江苏建筑职业技术学院
    2. 中国矿业大学安全工程学院
  • 收稿日期:2015-11-25 修回日期:2016-01-22 出版日期:2016-10-10 发布日期:2016-11-03
  • 通讯作者: 郭庆 E-mail:zgkdgq@163.com

Comprehensive Fire Preventing Technology for Fully Mechanized Mining during Withdraw Period

  • Received:2015-11-25 Revised:2016-01-22 Online:2016-10-10 Published:2016-11-03

摘要: 针对张楼矿9427综采工作面在停采回撤期间采空区遗煤自燃、架间及回风流CO浓度超限等问题,从工作面地质构造、遗煤、漏风通道等方面对煤自燃进行了综合分析,并针对该工作面的实际情况和现有防灭火技术的特点,按照快速减少漏风、隔氧、消除高温点的原则,采取了均压、高位钻孔注高水材料、架间钻孔注凝胶泡沫为主的综合防灭火技术,使架间CO浓度从1200ppm降低到10ppm以下,并稳定至回撤结束,保证了工作面的安全回撤。

关键词: 综采工作面, 停采, 煤自燃, 综合防灭火技术, 高水材料

Abstract: Aiming to solve the problems of coal spontaneous combustion, CO content over limit occurred during the withdraw period of Zhang Shuang-lou coal mine 9427 working area, the geological structure of the coal mining face, coal quantity left, ventilation leakage and other aspects were analyzed. According to the actual conditions of coal mining face and features of each fire prevention technology, a comprehensive technology was applied including pressure balancing, grouting high-water materials through high level boreholes, injecting foam-gel in the boreholes drilled in front of the stents based on the principles of reducing leakage, isolating the oxygen, deleting high temperature areas quickly. The concentration of CO decreased from 1200ppm to 10ppm or less, and finally stabilized to the end of withdraw period.

Key words: Mining stop, Coal spontaneous combustion, Comprehensive fire preventing technology, High-water material

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