SF_6示踪气体在新集二矿1上煤采空区漏风检测中的应用

Application of SF_6 in Air Leakage Detection of Goaf-A Case in Xinji No.2 Mine

采用连续释放SF6示踪气体法,通过分析井上井下对照图,实地考察新集二矿2101采区1上煤的开采状况及巷道布置情况,结合井下采空区漏风和1上自燃发火情况,查找210107采面可疑漏风源与漏风汇的位置,合理布置释放接收点,利用瞬时释放示踪气体法确定了210107工作面上部210108采空区的漏风方向和漏风速度,在此基础上确定了漏风通道,为矿井自燃发火煤层防灭火工作提供了科学依据。

The SF6 tracer gas single point continuous release method was used to analyze the coal mining conditions and the roadway layout in the 2101 mining area of Xinji No.2 mine,and tile air leakage in the underground goaf and the spontaneous combustion. Combined with the underground mined-out air leakage suspicious air leakage and 1 on the spontaneous combustion situation,to find 210107 mining surface and leakage of the sink position,a reasonable arrangement to release the receiving point. Using the instantaneous release tracer gas method to determine the air leakage direction and air leakage rate of 210108 goal which upper of the 210107 working surface. To determine the air leakage channel, which provides a scientific basis for mine fire prevention and control.