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煤矸石资源化利用充填邻近废旧巷道的防灭火技术 预览

Fire Prevention and Extinguishing Technology that by using Gangue Resources to Fulfill Adjacent Waste Roadway
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摘要 火灾是严重影响矿井安全生产的五大灾害之一,而采空区浮煤自燃是引起矿井火灾最主要的因素。本文分析采空区自然发火特征和影响因素的基础上,指出封闭漏风通道是降低回采工作面煤层自然发火可能性的关键,分析了“降、注、封”三位一体防灭火方案,结合石槽村煤矿煤层自然发火期短、煤矸石外排量大、废旧巷道多、煤层间距小等难题,提出煤矸石充填邻近废旧巷道的防灭火方法。实践证明:利用煤矸石充填邻近废旧巷道,不仅实现了矸石井下处理,改善了地面生态环境,而且有效遏制了巷道顶板下沉和地表沉陷,同时,巷道的完全密实充填又可封堵采空区漏风通道,改善采空区通风条件,降低采空区浮煤自然发火率,为类似矿井做好防灭火工作提供借鉴。 The fire is one of the five major disasters which seriously affect the safe production of the mine, and the spontaneous combustion of the coal in the goaf is the most important factor in the mine fire. Based on the analysis of the characteristics and factors of spontaneous combustion in the goaf,it is pointed out that the closed air-leakage channel is the key to reducing the possibility of spontaneous combustion of the coal seam in the working face,and the three-in-one anti-fire-fighting scheme of“reducing,injecting and clos. ing”is analyzed. The problems of large external displacement of the coal-fired stone,the number of old and old tunnels and the small space between the coal seams and the like are difficult,and a fire-fighting method for filling the adjacent waste roadway with the coal-fired stone is put forward. The practice proves that the method has the advantages that the coal-fired stone is used for filling the adjacent waste roadway,not only the underground treatment of the gaugnue is realized,the surface ecological environment is improved,the roof of the roadway is effectively restrained from sinking and the surface subsidence is effectively restrained,and meanwhile,the complete dense filling of the roadway can be used for plugging the air leakage passage of the goaf,improving that ventilation condition of the goaf,reducing the spontaneous combustion rate of the float. ing coal in the goaf,and providing reference for a similar mine to do the fire prevention work.
作者 王建杰 陈志维 WANG Jianjie;CHEN Zhiwei(Shicaocun Coal Mine, Ningxia Coal Industry Company, National Energy Group,Lingwu,Ningxia,750408)
出处 《神华科技》 2019年第5期15-19,共5页 Shenhua Science and Technology
关键词 废旧巷道 矸石充填 防灭火 Waste roadway Gangue filling Fire prevention and extinguishing
作者简介 王建杰(1971-),男,工程师,2015年毕业于西安科技大学,现任国家能源集团宁夏煤业公司石槽村煤矿副总工程师。Tel:13519214368,E-mail:1059988541@qq.com.
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