摘要
根据国内外综放工作面采空区氮气防火技术的应用实践．确定了综放工作面采空区氮气防火合理工艺参数，对提高综放工作面采空区氮气防火效果和推进放顶煤综采在我国煤矿中的发展具有重要意义．
his paper determines the rational technical nitrogen fire-proof Parameter in sub-levelcaving after studying the practice of nitrogen fire-proof in sub-level caving at home and abroad,t'hich is important for improving the effect of the nitrogen fire-proof in sub-level caving and givesgreat impetus to the development of the sub-level caving in our country.
关键词
采煤
工艺参数
氮气防火
综放工作面
sub-level caving, nitrogen fire-proof, nitrogen-injection flow, nitrogen exit, coal spontaneous fire
