FIELD: process engineering.SUBSTANCE: invention relates to grinders and may be used for production of preset-dispersity powders. Centrifugal mill comprises casing consisting of two aligned different-diameter cylinders with loading and unloading bins. Outer and inner rotors with grinding bodies are mounted aligned in said casing. Said grinding bodies are composed of several sets of free-running different-height rollers. Inner rotor is fitted inside outer rotor bottom part to run in opposite direction. Holes are made in outer rotor between top and bottom grinding bodies, all over the circle.EFFECT: higher efficiency of crushing.3 dwg
