高抽巷在芦沟煤矿瓦斯抽放中的应用

随着开采深度的增加,瓦斯治理工作难度加大,单纯依靠增加风量来实现瓦斯治理在实践中被证实是不可行的。芦沟矿在工作面初采过程中采用本煤层抽放瓦斯技术来治理瓦斯,但在回采过程中回风瓦斯浓度仍然经常达到临界值,为了有效解决瓦斯对安全生产影响的难题,采用了高抽巷专用巷道瓦斯抽放技术,降低了上隅角及回风流瓦斯浓度,保证了工作面正常安全生产。

Application of High-level Gas Drainage Roadway in Gas Drainage on Working Face in Lugou Coal Mine

With the increase of mining depth,it becomes more difficult to control the gas in coal mine,simply rely on the improvement of air flow has been proved to be unfeasible.During the initial mining on working face,the technology of gas drainage in coal seam being worked was used to control gas,but in the process of recovery,the gas density in return air still reaches a critical value.To effectively solve the problem of gas affecting safety production,appropriative high-level gas drainage roadway was used to ext...