Gas is exhausted in a non-overlimit state by a series of techniques on the advanced design of aerofoil leaves for aeroengine,the facture of a intelligent actiyator and so on.

• 采用双速电机和可调前导叶组合技术使风机在掘进全过程的4种工况下高效、节能地运行,通过先进的航空发动机机翼型叶片的优化设计和智能调速装置研制等一系列技术手段,实现瓦斯最大效率的无超限排放。