煤矿井下瓦斯排放技术及其效果评价研究

Study on Underground Gas Emission Technologies and Their Effect Evaluation in Coal Mine

从不同的瓦斯排放技术出发,利用理论分析的方法,分析了全风压通风排放、局部通风机通风排放、智能型自控设备排放及抽采系统辅助排放技术的技术特征,并提出了矿井瓦斯排放基本原则,采用理论计算方法确定了通风排放瓦斯所需时间,探讨了效果评价方法,可以为煤矿进行井下瓦斯排放提供理论支撑与现场指导。

Based on the different technologies of gas emission, by using the method of theoretical analysis, this paper analyzed the technical characteristics of the technology of total air pressure ventilation, local fan ventilation, intelligent automatic control equipment and assistant drainage of extraction system, and put forward the basic principles of mine gas emission, determined the time of ventilation and gas emission by theoretical calculation method, and discussed the drainage effect evaluation methods,which can provide theoretical support and field guidance for underground gas emission in coal mines.