The SJ series high-pressure and high-efficiency centrifugal blower is mainly used as the main exhaust fan for sintering production lines in the smelting industry. It can also be used in other places with suitable pneumatic parameters for air supply and exhaust. However, the medium transported is non natural, non-toxic, and non corrosive gas, and its temperature cannot exceed 250 ℃. Structural features: Adopting a serrated intermediate disc high-efficiency backward impeller, it has high efficiency, low noise, good wear resistance, and small moment of inertia. There are three types of casings: integral, two-piece, and three piece; Rotation direction can be divided into left and right rotation; There are two types of transmission modes: D-type and F-type; The intake method is divided into two forms: single suction intake and double suction intake.