工作面采空区氧化规律研究及应用  

Study and application of oxidation law in goaf of working face

作　　者：姚文宇 YAO Wen-yu(Zhangshuanglou Coal Mine of Xuzhou Mining Group Co.,Ltd.,Xuzhou,Jiangsu 221611)

机构地区：[1]江苏徐矿能源股份有限公司张双楼煤矿,江苏徐州221611

出　　处：《煤炭科技》2020年第2期79-81,共3页Coal Science & Technology Magazine

摘　　要：张双楼煤矿7煤为自燃煤层,存在采空区自然发火危险。为了观测采空区O2、CO浓度以及温度变化规律,在74101工作面建立采空区测温和取样观测系统,通过模拟74101工作面采空区在不同边界条件和通风参数条件下的采空区氧化规律,确定了74101工作面最佳供风量范围和最低回采速度,为有效防治采空区自燃灾害提供理论依据。Coal 7 in Zhangshuanglou Coal Mine is a spontaneous combustion coal seam, and there is a risk of spontaneous combustion in the goaf during the mining process. The temperature measurement and sampling observation system of goaf was established in 74101 working face. The changes of O2, CO concentration and temperature in goaf were observed with the advancing of working face. The oxidation law of goaf in 74101 working face was simulated under different boundary conditions and ventilation parameters. The best air supply range and the minimum mining speed were determined,which has provided basic foundation for effectively preventing and controlling the spontaneous combustion disaster in goaf.

关 键 词：采空区 自然发火期 三带 风量 推进度 

分 类 号：TD752[矿业工程—矿井通风与安全]