正压通风在易自燃综放工作面回撤期间的应用

Application of Positive Pressure Ventilation during Withdrawal Period of Fully Mechanized Caving Face Prone to Spontaneous Combustion

李阳煤业是自然发火严重的高瓦斯矿井,做好综放工作面回撤期间防灭火管理一直是该矿需解决的重大难题。通过采用正压通风,合理调整高抽巷抽采量,配合一些防灭火措施,保证了综放工作面在短时间内回撤完毕,避免了工作面采空区在回撤期间自然发火,为同类矿井工作面回撤期间通风及防灭火管理提供了有力参考。以李阳煤业有限公司15302综放工作面为例,对正压通风在易自燃综放工作面回撤期间的应用进行了探讨。

Liyang Coal Industry Co.,Ltd.is a high gas mine with serious spontaneous fire.Doing a good job of fire prevention management during the withdrawal of fully mechanized caving face has always been a major problem that the mine needs to solve.By adopting positive pressure ventilation,reasonably adjusting the extraction volume of high-extraction tunnels,and cooperating with some fire-fighting measures,the fully mechanized caving mining face can be fully retracted in a short time,and the goaf of the working face is prevented from spontaneous combustion during the retreat,which provide powerful reference for ventilation and fire prevention management during the retreat of similar mines.Taking the 15302 fully mechanized caving face of Liyang Coal Industry Co.,Ltd.as an example,this paper discussed the application of positive pressure ventilation during the withdrawal period of the fully mechanized caving face prone to spontaneous combustion.