FIELD: ore reprocessing method. SUBSTANCE: method involves charging ore into working channel and simultaneously applying compression and extension forces. In the process of charging kimberlite ore into annular working channel having downward reducing width, central surface is imparted rotary motion around vertical axis and kimberlite ore is urged into narrowing channel by means of grooved surfaces. Simultaneously, reciprocating torque forces are applied to ore flow in horizontal plane by means of grooved surfaces of channel for regulating grinding extent through withdrawal of part of natural slope of ground ore during exit thereof from working channel. Sizes of channel sections provide for free passage in ore flow of crystals, which are used as stress concentrators in the process of transfer of force from grooves during grinding of kimberlite ore. EFFECT: increased efficiency and improved quality of ground material. 5 dwg
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