FIELD: grinding by hydraulic impact. SUBSTANCE: suspension is subjected to hydraulic impact grinding based on cavitation arising in voids of stator and rotor nozzles directed to circular passage between them. Circular passage is taper in shape; diameter of rotor increases from inlet branch pipe of housing to outlet branch pipe and diameter of rotor and stator nozzles increases in direction opposite to direction of motion of material being treated, thus providing for successive grinding of suspensions and bringing sizes of particles to level comparable with sizes of microorganisms. EFFECT: enhanced efficiency of grinding. 2 dwg
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