能位测试与示踪气体联合检测在复杂采空区漏风中的应用研究

Using Potential Energy Measurement and Tracing-gas Technique to Detect Gob Area Air Leakage

自然发火矿井中采空区漏风可以引发采空区煤炭氧化、自燃,查找漏风通道是防治采空区煤炭自燃的重要技术工作。本文根据林南仓矿西一采区的采空区复杂条件,测定了火区周围地点的能位,分析可能存在的漏风通道,释放SF6检测出采空区中存在的漏风通道。根据测试结果采取了注浆封堵措施,保证了矿井的安全生产。

Majority of spontaneous combustion caused fires in coal mines are the results of air leakage in gob areas. It is a important means to find the rout of air leakage. According to the condition of west No. l mining area in Linnancang coal mine, the potential energies around the fire zone were measured. The possible rout of air leakage were studied. The tracing - gas of SF6 was used and the rout of air leakage was found in the gob area. This practice provides sufficient assistance to the prevention and control of spontaneous combustion in gob areas and work safety in Linnancang coal mine.