FIELD: materials grinding. SUBSTANCE: device has shell consisting of two chambers interconnected by branch pipe. Installed in chambers are drums with wound-on hoses of different diameters. Second ends of hoses are fastened respectively to shell and branch pipe. Chambers communicate with system for feeding and discharging working medium. Device is provided with loading and unloading systems. EFFECT: enhanced efficiency of device and improved quality of material grinding. 1 dwg
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