深井自燃煤层注复合惰气防灭火技术研究

Study on Fire-extinguishing Technology of Compound Inert Gas Injection from Coal-fired Layer in Deep Well

唐口煤矿5306工作面在停采撤面期间采空区内部极易发生遗煤自燃,常规防火成本高,因此,提出采用复合惰化气体用于采空区遗煤的防治工作。结果表明:采用复合惰化气体后采空区遗煤自燃得到有效防治,同时其防火成本也得到了极大的降低。

In the 5306 working face of Tangkou Coal Mine,during the stoping and withdrawal of the working face,it is very easy to have the spontaneous combustion of the remaining coal in the goaf,and the conventional fire prevention cost is high.Therefore,the compound inert gas is proposed to be used for the prevention and control of the remaining coal in the goaf.The results show that the spontaneous combustion of coal in goaf is effectively prevented and the cost of fire prevention is greatly reduced.