SWIRL-ACOUSTIC CLASSIFIER Russian patent published in 2001 - IPC

FIELD: equipment for separation of finely dispersed materials; applicable in manufacture of building materials, mining, chemical electric power and other industries. SUBSTANCE: classifier includes body with semitore surface in upper part; truncated cones turned with their large bases upward and located under semitore surface and entering one another in height; loading branch pipe located tangentially to lower truncated cone; discharging appliances. Small bases of truncated cones are located at some angle to horizontal axis which coincides with material angle of repose. Cones are secured with their small bases to each next cone. Installed inside semitore surface, fastened to upper truncated cone, is toroidal settler conjugated with semitore surface and having discharge branch pipes located in its lower part. Settler is connected by means of corrugated branch pipes, secured in its upper part with cone-shaped cloth dust collector installed in metal body located inside truncated cones. Lower part of cloth dust collector has discharge branch pipe coaxially installed relative to discharge branch pipe of lower cone. Relation between diameters of tore and corrugated branch pipes is d= (0.05-0.15)D, where d is diameter of corrugated branch pipe; D is diameter of tore settler. EFFECT: higher efficiency of material classification with different mechanical and physical characteristics. 3 cl, 3 dwg