FEED CRUSHER Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: crusher has crushing chamber, rotor with hammers, and separation chamber with separating surface. A divider is mounted in the separation chamber for rotation. The divider is perforated cylinder with holes gradually decreasing in diameter. Circular inserts rigidly mounted in the cylinder also decrease in their inner diameter in the direction of motion of feed to be crushed. As the crushed feed enters the divider and finds itself on circular inserts, it is divided into several horizontal flows that pass through holes to separating surface. This arrangement decreases the load on the separating surface and allows for keeping certain thickness of the layer. Smaller particles are transported to cyclone for unloading, and bigger ones are returned to the crushing chamber by means of branch pipe and air conduit. EFFECT: higher reliability; higher efficiency. 1 dwg