2#煤层及综合瓦斯抽放工艺在屯兰矿的应用

Study on 2# Seam and Comprehensive Taked Gas out System in Tunlan Coal Mine

分析了几种提高煤层透气性途径 ,进行 2 # 煤层瓦斯抽放工艺实验 ,针对屯兰矿下组煤在掘进时瓦斯涌出异常及瓦斯赋存情况采用综合瓦斯抽放工艺。通过抽放工艺改造 ,提高了瓦斯抽放率 。

Analyses four kinds of way raised seam permeability,thetaked gas out process test had been done.In accordance with gas spraied out unusual phenomena and its occurrence,comprehensive taking gas out process are used.By improving system the taked gas out ratio is raised to ensure safety production.