FIELD: technological processes; agriculture.
SUBSTANCE: invention relates to grain raw material processing in extruder by barothermal method. Extruder comprises a cylindrical body with a loading hopper and an installed on the end matrix having an adjustable die. Cylindrical screw is installed in the cavity of the housing. On the inner side the housing is made with longitudinal ribs and has a grain mixture supply zone and its plastification zone. Longitudinal ribs have inclined cutouts in said zones. Inclination of cutouts in the grain mixture feed zone coincides with the screw rotation direction, and in the plastification zone – opposite to the screw rotation direction.
EFFECT: higher degree of homogenisation of processed grain stock and higher efficiency of extruder.
1 cl, 4 dwg
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