SAS (side charge) Type Air Separator is a dry classifier mainly used for classification of cement, silica sand, slaked lime, and clay. The circulating gyratory airflow is used for efficient dispersion and the centrifugal force enables mass processing.
The double structure of outer and inner cylindrical casings has a vertical shaft in the center to which main and sub vanes and a dispersion disk are attached to turn slowly. The circulating airflow caused by the main vane rotation is ascending in the inner cylinder casing. The material is fed from the top supply port through the fixed hopper onto the center of the dispersion disk and scattered by centrifugal force. The fine particle portion is carried by the circulating airflow to go out to the outer cylinder and then downward along the outer cylindrical casing and discharged from the fine powder outlet. The coarse powder portion falls along the inside walls of the inner cylindrical casing and passes through the cone casing to be discharged from the coarse powder outlet. The classification point is adjusted by the number of sub vanes and opening of the valve plate to obtain the target particle size.
Ingredients, feed amount ton/h, temperature, particle size distribution, true specific gravity, bulk specific gravity, water content (up to 1% in general for typical usage)
Classification point (μm or Blaine), allowable coarse particle inclusion %, desired temperature at the outlet
Voltage and frequency
Type and size of the mill to combine, necessity of optional air-cooled duct
