HELICAL PNEUMATIC SEPARATOR Russian patent published in 2002 - IPC

FIELD: mining industry, in particular, minerals classification and concentration equipment. SUBSTANCE: pneumatic separator has vertical working separating chamber formed as helically laid closed trough, charging branch pipe, upper branch pipe for discharge of tailings and lower branch pipe for discharge of concentrate, and supercharger for blowing main air flow. Trough is positioned around carrier casing for rotation and is equipped with corrugations and flow looseners and is further equipped with plate-hung bottom positioned on basic material feeding part of trough and adapted for separating delivered basic material flows from high-density particles sliding downward. Device for supercharging main air flow is arranged at bottom part. EFFECT: increased efficiency and improved material separation quality. 2 cl, 3 dwg