采用“Y”型通风的采煤工作面采空区综合防火技术

Comprehensive fire protection technology in goaf of coal mining face with "Y" type ventilation

采煤工作面采用“Y”型通风方式可有效解决回风隅角瓦斯积聚超限问题,但是对于自燃和易自燃煤层的采煤工作面,由于“Y”型通风导致的采空区漏风容易造成采空区遗煤自燃,从而发生自然发火事故。王村矿8305采煤工作面采用“Y”型通风,煤层自燃倾向性为自燃,为解决采空区遗煤容易自燃问题,根据现场实际研究应用了采空区自然发火综合防治技术,取得了很好的防治自然发火效果,确保了采煤工作面安全回采。

The use of "Y"-shaped ventilation in the coal mining face can effectively solve the problem of excessive gas accumulation in the return air corner,but for the coal mining face with spontaneous combustion and easily spontaneous combustion coal seams,due to the "Y" ventilation,it is easy to cause air leakage in the goaf.Cause the coal leftover in the goaf to spontaneously ignite,resulting in a spontaneous fire accident.The 8305 coal mining face of Wangcun Mine adapt "Y" type ventilation,and the spontaneous combustion tendency of the coal seam was spontaneous combustion.It had a good effect of preventing natural ignition and ensures the safe mining of coal mining face.