Centrifugal air classifying apparatus

Details Centrifugal air classifying apparatus Centrifugal air classifying apparatus

1979-06-28

1981-03-24

Hill, Ralph J.

Classifying, separating, and assorting solids

Fluid suspension

Gaseous

209139R, B07B 7083

Patent

active

042578809

ABSTRACT:
A centrifugal air classifying apparatus for use with a cyclone type centrifugal separator and a fan for drawing air from the separator and returning it at superatmospheric pressure to the classifying apparatus, wherein the classifying apparatus has a rotary particle rejector in its upper portion for classifying material fed into a rising and rotating column of air outwardly surrounding the rejector. A first primary annular sealing zone is provided adjacent the tops of the rejector blades and a secondary annular sealing ring is provided at an intermediate location between the upper and lower ends of the blades.

REFERENCES:
patent: 1146633 (1915-07-01), Lyons
patent: 3384238 (1968-05-01), Alpha

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