大倾角中厚煤层短壁工作面防灭火实践

Prevention and extinguishnent Practice of coal spontaneous Short-wal Covnbustion at the working face of high slope and medium coalseam

沛城煤矿8325采煤工作面属大倾角中厚煤层短壁开采。工作面回采过程中发生严重的采空区煤炭自燃现象,针对具体条件采用均压、埋管注胶、雾化阻化剂等防灭火措施,取得了较好的效果,提出了采煤工作面大倾角中厚煤层短壁开采的防灭火方法。

8325 coal working face was belonged to high slope and medium coalseam,short wall Mining method was adopted.During Mining course of the working face,serious coal spontaneous combustion in the gob occured.Direded to the actual condition,the compreheusive technology methods induding pressure-equalizing and glue injection and spray catalyzer were adopted.which made obvious effect.The prevention and extinguishment methods for high slope and medium coalseam and short wall were presented.