SEED PURIFICATION DEVICE Russian patent published in 2023 - IPC A01C1/00 A01F12/44 

FIELD: agricultural machinery.

SUBSTANCE: device for seed purification from dust and impurities is proposed, containing a hopper and an exhaust fan with an electric drive. Above an upper cavity of the hopper, a removable receiving pneumatic chamber is located, in the form of a truncated regular four-sided pyramid connected by means of a window to a loading screw and windows placed inside the pyramid on two opposite sides, respectively having embedded air intake with a bell in the form of a ball segment at an output and dust intake connected by means of a throttle and an elastic sleeve to a cyclone cavity, inside which the sleeve is made descending in the form of a spiral providing, due to centrifugal forces, separation and deposition of particles in a removable dust collector located below. An upper cyclone cavity is equipped with an exhaust branch pipe connected by means of an air duct to the exhaust fan with the electric drive, located above the pneumatic chamber.

EFFECT: device provides seed purification from dust and impurities before their entering a seed treatment chamber.

1 cl, 3 dwg