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石港公司工作面采空区在开采过程中曾发生多次自燃现象,为加强工作面后方采空区的防火管理,在15108工作面采空区布置了热电偶和束管。通过对检测结果(温度和氧气变化规律)的分析,得出了采空区自燃“三带”的分布规律以及工作面的平均最小推进度。为石港矿采空区预防自然发火,合理安排安全生产提供了技术支持。
In the mining area of Shigang Company, spontaneous combustion occurred many times in the process of mining. In order to strengthen the fire prevention management of the back side gob area, a thermocouple and a beam pipe were arranged in the gob of 15108 working face. Through the analysis of test results (temperature and oxygen variation), the distribution law of spontaneous combustion “three belts ” and the average minimum propulsion degree of working face are obtained. It provided technical support for preventing spontaneous combustion in the gob of Shijiang Mine and arranging safety production reasonably.