"Y"型通风条件下香源煤矿1206工作面火灾及瓦斯防治技术

Fire and Gas Control Technology Under "Y" Style Ventilation at 1206 Coal Face in Xiangyuan Coal Mine

摘要: 介绍了香源煤矿1206工作面在停产期间采取的综合防灭火措施。通过采用调整通风系统、改变高位裂隙孔抽采范围、采空区注氮等综合防灭火措施，使采空区瓦斯涌出量从15.95 m³/min下降到11.8 m³/min，采空区CO下降到0，有效抑制了采空区遗煤自燃，实现了工作面的安全复采。

Abstract: We introduce comprehensive fire control measures of 1206 working face in production halts,by using nitrogen injection in goaf,adjusting the ventilation system,reducing the range of pumping gas and so on,the gas emission of goaf decreases to 11.8 m³/min from 15.95 m³/min.At the same time,the CO concentration reduces to 0.