CAJ | 학술논문

分析了“三软”煤层综放工作面自然发火的特点,提出了预防综放工作面自然发火的技术措施,并在宝鸡秦源煤矿N101综放工作面火区治理中进行了实践应用。实践结果表明,采用该防灭火技术措施后,在封闭灭火期间,38#支架后部的采空区(火区CO浓度最高点和温度最高点)的CO浓度,由5.8×10-4逐步降至5.0×10-6,说明所采取的灭火措施收到了良好的效果。该技术措施最终成功扑灭了N101综放工作面自燃火灾,并撤出了被封闭数月的液压支架等综采设备。
분석료“삼연”매층종방공작면자연발화적특점,제출료예방종방공작면자연발화적기술조시,병재보계진원매광N101종방공작면화구치리중진행료실천응용。실천결과표명,채용해방멸화기술조시후,재봉폐멸화기간,38#지가후부적채공구(화구CO농도최고점화온도최고점)적CO농도,유5.8×10-4축보강지5.0×10-6,설명소채취적멸화조시수도료량호적효과。해기술조시최종성공복멸료N101종방공작면자연화재,병철출료피봉폐수월적액압지가등종채설비。
In this paper, analysis was made on the characteristics of coal spontaneous combustion in fully mechanized top-coal caving face in“three-soft” coal seam, and the preventive measures against coal spontaneous combustion were proposed and applied for the prevention and control of the spontaneous fire zone in N101 fully mechanized top-coal caving face of Baoji Qinyuan Mine. The application results showed that during the enclosure of the spontaneous fire zone, the CO concentration in the gob behind No. 38 support ( the point where the highest CO concentration and temperature appeared in the whole fore zone) gradually reduced from 5. 8í10-4 to 5. 0í10-6 after taking the fire preventive and extinguishing measures, this indicated the good effect of the fire-fighting measures. Using this fire-fighting technology, the spontaneous fire in N101 fully mechanized top-coal caving face was successfully put out, and the fully mechanized equipment such as hydraulic powered supports which were enclosed in the face for several months was finally withdrawn.