WORKING TOOL FOR MINERAL FERTILIZER MIXER-SPREADER Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: working tool has internal and external conical disks, which are mounted on single shaft for rotation in opposite directions. Internal disk is arranged with its cone top directed upward and is provided with blades. Truncated external disk is arranged with its apex directed downward and is provided with curved blades. Angle between internal disk generatrix and external disk generatrix is 167 deg. Inclination angle of internal disk generatrix is within the range of 3-13 deg, and inclination angle of external disk generatrix is within the range of 10-0 deg. EFFECT: reduced labor intensity for adjustment of working tool and uniform application of mineral fertilizer mixtures. 3 dwg