保护层开采治理瓦斯技术在金岭煤矿的应用

Application of Gas Control Technology in Protection Layer Mining

根据保护层开采理论,在金岭煤矿对一7极薄煤层进行了保护层开采,并采取瓦斯抽放技术综合治理二1煤层瓦斯。说明了保护层开采的保护范围,详述了瓦斯抽放方法及抽采效果,并对保护层开采前后二1煤层采掘工作面的瓦斯情况进行了比较分析,提出了保护层开采应注意的问题。实践证明:利用保护层开采结合瓦斯抽采技术进行区域治理矿井瓦斯是行之有效的办法。

According to the theory of protection layer mining in Jinling Coal Mine,protection layer mining method was adopted in Ⅰ7 extremely-thin coal seam,gas extraction technology was used to control gas in Ⅱ1 coal seam.Expounded the scope of protection layer mining,gas drainage method and extraction of protective effect were also explained.Gas conditions were compared and analysed before and after protection layer mining,meanwhile,some key problems should be paid attention to were also proposed.Application practice shows that,the protection layer mining combined with gas extraction technology for regional gas control is an effective method.