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赵各庄矿地质条件相当复杂,煤层倾角变化较大,大倾角煤层实现综合机械化回采是该矿在采煤管理上重大突破。因此,复杂地质条件下回采工作面的自然发火管理也成为了安全管理的难题。通过对3237回采工作面采空区内O2和CO浓度以及浮煤温升的变化的测定及分析,确定了自燃“三带”的划分范围,并找出了工作面容易发火的可能位置,对矿井自然发火的防治具有重要的指导意义。
The geological conditions of Zhaogezhuang Mine are quite complex, and the coal seam dip angle changes greatly. The comprehensive mechanization recovery of the coal seam with large dip angle is a major breakthrough in this coal mining management. Therefore, natural fire management of mining face under complex geological conditions has also become a problem of safety management. Through the determination and analysis of the changes of O2 and CO concentration and the temperature rise of floating coal in the gob of 3237 working face, the division range of spontaneous combustion “three belts ” was determined and the possible position of easy ignition of working face was found out It has important guiding significance for the prevention and control of spontaneous combustion in mines.