摘要
对下行通风时瓦斯涌出及下隅角瓦斯减少的原因进行论证,对上行风改为下行风应注意的问题进行了论证。
This paper discussed methane emission, the reasons for methane reduction in up comer, problems should be considered in the condition of change from normal ventilation into downriver ventilation.
出处
《煤炭技术》
CAS
2007年第5期129-130,共2页
Coal Technology
关键词
下行风
瓦斯浓度
应用
downriver ventilation
methane concentration
practice