摘要
为了防止采空区内遗煤氧化积热自燃诱发矿井火灾,以小庄煤矿40201工作面采空区为研究对象,通过现场实测采空区内O_(2)和CO浓度,利用Matlab软件得到O_(2)和CO浓度的分布规律和等值线图,以O_(2)浓度作为自燃“三带”的划分指标,获得试验工作面采空区自燃“三带”的分布范围,将O_(2)和CO浓度进行叠加,确定采空区内高危险区域的范围,并计算了工作面的最大停产整顿时间为7 d。真实、直观地显示出采空区自燃“三带”的分布情况,能够为小庄煤矿采空区防灭火工作的实施提供技术支撑,确保40201工作面的安全回采。
In order to prevent the spontaneous combustion of residual coal oxidation heat accumulation in goaf from inducing mine fires,this article takes the goaf of 40201 working face of Xiaozhuang Coal Mine as the research object,the O_(2) and CO concentration in goaf were measured on-site,Matlab was used to obtain the distribution law and contour map of O_(2) and CO concentration,the O_(2) concentration was used as the dividing index of spontaneous combustion“three zones”,and the distribution range of spontaneous combustion“three zones”in goaf of the test working face was obtained.The O_(2) and CO concentration was superimposed to determine the range of high risk area in goaf,and the maximum production shutdown and rectification time of the working face was calculated to be 7 d.The distribution of spontaneous combustion“three zones”in goaf can be shown in a real and intuitive way,which can provide technical support for the implementation of fire prevention and suppression work in goaf of Xiaozhuang Coal Mine,and ensure the safety coal winning of 40201 working face.
作者
尚玮炜
张飞
罗华贵
王宁
李斌
SHANG Weiwei;ZHANG Fei;LUO Huagui;WANG Ning;LI Bin(Ventilation Safety Technical Service Branch,Shanxi Jinmei Group Technology Research Institute Co.,Ltd.,Jincheng 048006,China;College of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China;Key Laboratory of Mine Power Disaster and Prevention of Ministry of Education,Liaoning Technical University,Huludao 125105,China)
出处
《矿业安全与环保》
北大核心
2022年第1期94-99,共6页
Mining Safety & Environmental Protection
关键词
采空区
矿井火灾
自燃“三带”
分布规律
停产整顿时间
安全回采
goaf
mine fire
spontaneous combustion“three zones”
distribution law
production shutdown and rectification time
safety coal winning
