aiming at the problem of the poor drainage effect using local fan to drain the gas in return corner in Yannan coal mine, using the gas diluter reconstruction design, application in ifeld shows that thegas diluter has an ideal effect for some and a dead end, can be used widely in the mining area.%针对雁南煤矿局部通风机抽排回风隅角瓦斯效果不佳的问题,采用经过改造设计的瓦斯稀释器。通过现场应用表明,瓦斯稀释器对一些死巷和死角的气体扩散有着理想的效果,可在大雁矿区进行推广使用。
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