易燃煤层沿空留巷工作面综合防灭火技术应用研究

Applied Research for the Integrated Fire Control Technique of Inflammable Coal Gob Working Face

在易燃煤层中采用加固沿空留巷墙体堵塞墙体漏风,对采空区进行开放式注氮,改变通风系统,加快工作面推进速度,实现沿空留巷无煤柱工作面安全回采。

The paper puts forward some measures,such as steadying the gob wall in flammability coal to block air leakage, using open nitrogen injection for the mined-out area to change the ventilation system, accelerating the forward speed of the working face to achieve the safe recovery of gob without pillar face.