ROTARY SWIRLING PULVERISING MILL Russian patent published in 2015 - IPC B02C13/00 B02C19/00 

FIELD: process engineering.

SUBSTANCE: rotary swirling pulverising mill is intended for pulverising of hard material to preset dispersity. Its can be used in food and chemical industry, etc. Mill comprises vortex grinding chamber with cooling water jacket and shaped side surface. The latter has grooves shaped to rectangular trapezoid, with blind bottom and classifying cover. Coaxial swirling chamber is arranged above grinding chamber and confined from below by sais classifying cover. Two hollow rotors are fitted one into the other and provided with variable-section vanes secured between discs of one rotor. Ring with at least 8 bores arranged tangentially to peripheral circle is fitted in second rotor with blind top and bottom discs. Feed pipe lower edge height relative to rotor bottom disc can be adjusted while second outer rotor OD makes at least 0.71 of vortex chamber ID.

EFFECT: grinding of material highly sensitive to heating, required ground particle size.

3 dwg