MACHINE TO SEPARATE POTATOES FROM SOIL LUMPS Russian patent published in 2012 - IPC B07B13/08 B07B1/12 A01D17/10 A01D33/08 

FIELD: process engineering.

SUBSTANCE: invention may be used in agriculture for separation of potatoes from soil lumps. Proposed machine exploits the principle of arbitrary comparison of difference in specific gravity of potato and soil lump. Machine comprises carcass with lateral sides guarded by metal sheet, inner and outer frames and unit made up of synthetic sorting elements arranged in three planes. Said elements are made of synthetic flat bands or ropes arranged at 4-5° to horizontal axis and secured on tubes. Said elements are fitted on both side of said carcass in seats made up of plates welded to outer frames and driven by two vibrators. The latter are arranged on outer frames on carcass opposite sides. Note here that support rollers are rigidly secured in inner frames to allow soft displacement of frames.

EFFECT: higher efficiency, ruled out damage of potato.

2 dwg, 1 tbl