锦丘煤矿工作面自然火灾治理技术  

Natural Fire hazard technology in Jinqiu Coal mine

作　　者：张均仿 杜振启 ZHANG Junfang;DU Zhenqi(Jinqiu Coal mine of Guo Zhuang Mining Co.,LTD,Tengzhou 277500,China)

机构地区：[1]郭庄矿业有限责任公司锦丘煤矿,山东滕州277500

出　　处：《煤矿现代化》2024年第5期119-123,共5页Coal Mine Modernization

摘　　要：为解决锦丘煤矿井下煤层快速氧化问题,联合使用排除法+钻孔探测迅速锁定危险区域,针对各氧化原因提出相应的治理措施并现场应用,最后建立井下火灾检测系统和灭火系统,并对重点区域提出火灾防治方案。结果表明:针对12306工作面采空区因积水浸媒体导致煤岩快速氧化,采用喷洒阻化剂+注浆的治理方案在第13天降至最低值,而后CO浓度保持在0.0015%~0.0043%区间内;针对12307工作面采空区留设支撑煤柱压裂氧化放热的情况,采用围煤柱浇筑厚30 cm的混凝土墙,并注浆+氮气堕化空区的治理方案,发现采空区CO浓度震荡式下降后对封闭墙加固,最终在第12天降至最低值,CO浓度保持在0.0017%~0.0041%的区间内。In order to solve the problem of rapid oxidation of coal seam in Jinqiu Coal mine,a combination of removal method and drilling detection was used to quickly lock the dangerous area,and corresponding treatment measures were proposed for each oxidation cause and applied on site.Finally,a underground fire detection system and fire extinguishing system were established,and fire prevention and control plans were proposed for key areas.The results show that:in view of the rapid oxidation of coal and rock caused by water leaching media in the goaf of 12306 working face,the treatment plan of spraying inhibitor+grouting is reduced to the lowest value on the 13th day,and then the CO concentration is maintained in the range of 0.0015%~0.0043%.In view of the situation that supporting coal pillar is left in the goaf of the working face 12307,a concrete wall with a thickness of 30cm is poured around the coal pillar,and the treatment plan of grouting+nitrogen decaying goaf is adopted.It is found that the sealing wall is reinforced after the CO concentration in the goaf drops shockingly,and finally drops to the lowest value on the 12th day.The CO concentration is maintained in the range of 0.0017%~0.0041%.

关 键 词：煤岩快速氧化 危险区域定位 注浆+阻化剂 井下火灾监测 灭火系统 

分 类 号：TD752.22[矿业工程—矿井通风与安全]