摘要
大兴煤矿N2-405综采工作面煤层为易自燃发火煤层,回采期间首次实施了采空区氧化带开采区注氮气防火措施,取得了最佳的防火效果,防止了自燃发火事故发生,保证了工作面安全回采。
N2 - 405 fully mechanized coal face of Daxing Coal Mine is an easy spontaneous fire seam. The fire proof measures of pouring nitrogen gob oxidizing band working area during actual mining are first used, which has obtained good result, prevent spontaneous fire accidents, and ensure safe mining.
出处
《煤炭技术》
CAS
2007年第3期62-64,共3页
Coal Technology
关键词
自燃煤层
综采
注氮气
防火
spontaneous fine seam
fully mechanized coal face
pouring nitrogen
fire proof
