DEVICE FOR SEPARATION OF LOOSE MATERIALS ACCORDING TO PARTICLE SIZE Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: device has a foundation with a cylindrical drum, having a drive and charging chute, mounted on it. The cylindrical drum is made up of successively connected sieve sections. The seed cells have increasing dimensions with removal from the charging chute. Discharging branch pipes are installed under each section of the cylindrical drum. Load-handling devices are made in the form of blades installed along the generating line of the cylindrical drum internal surface and rows of trays positioned on both sides of the fixed plate installed along the longitudinal axis of the cylindrical drum. The trays of the cylindrical drum lifting part are inclined towards the charging chute. The trays of the lowering part have an opposite inclination. Each row of trays has an adjustment turn mechanism. The chute of the last tray of the lowering part is brought outside the discharging end of the cylindrical drum and provided with a discharging branch pipe. EFFECT: improved design. 3 cl, 4 dwg