Shanxi fan impeller according to the number of different, mainly fans can be divided into single-stage (an impeller) and multi-stage tandem on the same shaft impellers). The main fan more than a single class, and axial flow fan bite mainly for BU level. According to the number of impeller inlet air intake is different, the main suction fan can be divided into single or double suction human rights L. major ventilation Axial fans are single suction Shanxi, and fan blower manufacturers mainly for single or double suck suck. Shanxi mine ventilator fan circle can be divided according to their service: ① main fan: for the whole mine or mine a jump (district) ventilation fan. ② Auxiliary Shanxi fan: for mine ventilation air duct and some branch network, the emperor to help work the main fan, fan manufacturers to ensure that the branch of the required wind t auxiliary fan. ③ local Shanxi fan: for mine ventilation local sites, such as the single head of roadway excavation, all the pressure it generates to overcome its resistance to wind simple connection. Shanxi fan pressure based. Blower fan can be divided into low, medium and high pressure air blower. In the standard intake condition, the main fan size divided by its total pressure ① ② low pressure and medium pressure main fan Main Fan: 1000Pa. 

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