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综放工作面开采Y型通风系统,两进一回Y型通风方式是适合无煤柱开采技术要求的预防和治理工作面上隅角瓦斯积聚最有效的通风方式;大大降低了回采工作面上半段沿倾向的瓦斯浓度递增梯度和上隅角瓦斯浓度,能有效地防止高瓦斯综采工作面的瓦斯积聚,为高瓦斯综采工作面的高产高效提供了可靠保证。
The fully mechanized caving mining face adopts the Y-type ventilation system. The two-in-one back Y-type ventilation method is the most effective ventilation method to prevent and control the accumulation of gas in the corner of the working face, which is suitable for the technical requirements of non-coal pillar mining; greatly reduces the working face The gradual increment of gas concentration and the gas concentration in the upper corner along the half of the dip can effectively prevent the gas accumulation in the high gas fully mechanized coal mining face and provide a reliable guarantee for the high production and high efficiency of the high gas fully mechanized coal mining face.