The utility model relates to an aeration blower for sewage treatment, which is a centrifugal single suction double support structure, which is driven by an electric motor or a steam turbine through an elastic column pin coupling. From the rear end of the motor or steam turbine, the rotor rotates counterclockwise, and the inlet and outlet face up. The shell is made of cast iron and has the advantages of vibration reduction, noise reduction, corrosion resistance and high temperature resistance. The spindle is made of high quality carbon steel, the impeller is made of ordinary low alloy steel, if the pressure is too high, the general use of high-strength alloy steel. Rolling and sliding bearing, rolling bearings with MoS2 lithium grease lubrication, oil lubrication sliding bearing by force.
Sewage treatment aeration blower is generally multi-level, the flow is generally in 20-500 meters per minute, the pressure is generally 3500-20000mmH2O.
Sewage treatment multistage centrifugal blower in sewage treatment is better than that of Roots blower, such as low noise, high efficiency, convenient adjustment, unfavorable wear, high system efficiency, small vibration, long service life, high cost, energy saving and so on.