JET-VORTEX MILL Russian patent published in 1995 - IPC

FIELD: production of powders. SUBSTANCE: given invention is based on increased efficiency of fine grinding and on expansion of assortment of ground materials thanks to organization of high-speed (supersonic) jet stream close to wall formed by supersonic, flat, tangential nozzles supplying gas energy carriers into flat grinding chamber with cylindrical side wall, In process of operation of mill particles of loaded material are accelerated up to speed providing for their effective grinding caused by interaction of particles with walls of chamber and between particles. EFFECT: increased efficiency of fine grinding. 2 dwg