Y型通风方式治理高产综采面瓦斯研究

后退式采煤两进一回Y型通风系统，两条巷道进风，使通过工作面的风量相对减少，有助于防止工作面煤尘飞扬，改善工作面气候条件，减少采空区漏风和瓦斯涌出，从而具有防止工作面瓦斯积聚的作用。两进一回Y型通风系统主进风通过工作面，稀释本煤层瓦斯，并利用在采空区维护的回风巷，有控制地向采空区回风道漏风，使采空区瓦斯直接进入回风道，而副进风巷进风的作用在于驱散上隅角瓦斯积聚，并具有稀释回风巷瓦斯浓度的作用。其中一条巷道可专用作排瓦斯巷，

Study to Management for Gas in Synthetic Excavating Face with Mass Production by Y Ventilating Style

Gas thickness in return corner and groove of working face always exceed the limit with U type ventilator system, which greatly restrain normal product and increase in efficiency of coal mine. Compositively considering such aspects as reform of coal cutting technology, ventilating and manufacture capacity, gas management etc., the paper states the advantage and developing prospect of Y type ventilating system.