APPARATUS FOR PREPARING OF FERTILIZER Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, equipment for preparing of fertilizer and feeds. SUBSTANCE: apparatus has case with charging and discharge troughs and two shafts located in trough-shaped case depressions and equipped with blades and screws arranged in helical lines. Blades and screws are arranged on shafts in sequential alternation so that blades helical lines make continuation of screws helical lines. Screw coils are equipped with holes. Shaft and drive connections, direction of coils and arrangement of screws and blades provide for single direction of advancement of mixture and movement of mixture from blades of one shaft onto screw coils of other shaft. Charging and discharge hatches are arranged at opposite ends of shafts. EFFECT: intensified process for preparing of fertilizer and improved quality of fertilizer and feeds. 2 cl, 3 dwg