This standard specifies the basic design, structural design, testing and acceptance, appearance, coating and rust prevention, complete set supply and guarantee, marking, packaging, transportation and storage of centrifugal blowers for sintering plants. This standard is applicable to the extraction of sintering flue gas from sintering plants where the inlet temperature is not higher than 250°C, the pressure rise is not higher than 20kPa, and the dust content and other solid impurities in the medium are not greater than 50mg/m^(3) (actual state) Centrifugal blowers, dust removal fans or ring cooling fans used in sintering plants can also be used as reference.