摘要
矿井瓦斯是煤矿生产中经常遇到的有害气体,涌出的瓦斯不仅造成掘进工作面瓦斯超限影响掘进正常施工,同时给安全带来极不稳定因素。在高瓦斯掘进工作面采用大直径风筒进行供风可以有效解决掘进工作面瓦斯涌出问题。
The mine gas is the harmful air that grows in the production of the coal mine. The gush of gas not only influences the normal construction because the gas is over the limits at the digging face, but also it＇s a very unsteady factor for the safety. However, the application of the big diameter blowing tube at digging face with high gas can effectively solve the problem of gas gush.
出处
《煤炭技术》
CAS
2007年第7期55-56,共2页
Coal Technology
