APPARATUS FOR APPLICATION OF SOLID ORGANIC FERTILIZERS Russian patent published in 2007 - IPC A01C3/06 

FIELD: agricultural engineering.

SUBSTANCE: apparatus has drive mechanism, thrower and feeding screw equipped with right-hand and left-hand coils and positioned forward of thrower. Thrower housing is provided with two ejection windows positioned in the course of rotation of centrifugal disk of thrower, at an angle of 15 deg to horizontal plane. One of ejection windows is provided in upper part and other ejection window is provided in lower part of housing. Each of said windows is equipped with gate positioned so that when one window is closed, other window is opened. Feeding screw is enclosed in housing open at its front side through 195 deg and embraces screw at the side of thrower, said housing being rigidly connected with thrower housing. Screw housing has window for feeding of fertilizers into thrower and brackets mounted on screw housing at the side adjoining thrower. Brackets have supporting skis adjustable in vertical plane. Centrifugal disk of thrower and feeding screw are driven separately from adjustable hydraulic motors. Feeding screw coils are extending symmetrically from ends to center and are interrupted in central part, said interruption interval being equal to width of window for feeding of fertilizers into thrower. Feeding screw is of three-threaded, belt type, with coil pitch being equal to coil diameter.

EFFECT: increased efficiency and uniform distribution of fertilizers.

2 cl, 3 dwg