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1, in order for coal mine ventilation network resistance requirements, and make sure that ventilation efficiency, this machine uses a rotating structure, the two planes each reverse rotation of the impeller, eliminates the guide vanes in the wicket and reduced losses

2, using the motor with impeller direct coupled type, avoid gear damage, also eliminates the transmission energy loss, improve the efficiency of the blower. 

3, and motor are installation in wind machine main wind tube within of closed cover in the, closed cover has must of resistance pressure sex, can makes motor and wind machine flow road in the containing gas of gas isolated, while also up must of thermal role, closed cover has two row streamlined wind pipeline, through main wind tube and ground atmosphere communicates, makes fresh air into closed cover in the, while and can makes cover within air in wind machine run in the keep are pressure state.