摘要
通过对4405工作面采空区气体浓度的监测,分析了注氮前后采空区瓦斯浓度的分布规律,并对注氮前后"三带"的划分进行了阐述,得出了注氮前安全区范围,注氮消除了爆炸区域,保障了安全生产。
Through the monitoring of gas concentrations in 4405 working face goaf,the paper analyzes the distribution law of gas concentration before and after nitrogen injection,and describes the division of ＂three zones＂ before and after nitrogen injection,and obtains safety area before nitrogen injection,eliminate the explosive region,which ensures the safety production.
出处
《煤矿安全》
CAS
北大核心
2012年第B10期145-147,共3页
Safety in Coal Mines
关键词
瓦斯分布
“三带”划分
爆炸燃烧区
注氮
gas distribution
division of＂three zones＂
explosive combustion zone
nitroger injection
