偏W形通风系统瓦斯浓度场分布规律研究

Research on Distribution Rule of Gas Concentration about Partial W-type Ventilation System

为了加强对偏W形通风系统瓦斯浓度场分布规律的研究,以太岳煤矿2201综采面为例,采用数值模拟与现场实测相结合的方法进行研究,从理论和实践两方面得出综采面分别采用2种不同的通风方式时瓦斯浓度场分布情况。通过对比分析得到,两进一回偏W形通风方式更有利于瓦斯集中抽放及预防回风隅角瓦斯超限。

By taking 2201 fully mechanized coal face of Taiyue mine as an example, deep research was carried out on the distribution rule of gas concentration about partial W-type ventilation system with the combined method of numerical simulation and site measurement,the gas concentration with two ventilation systems at the full mechanized coal face was obtained in both theory and practice. By the contrast analysis, it will be more advantageous to the gas concentration drainage and the prevention of return air corner gas overrun by partial W-type ventilation system of two intakes and one return.