Centrifugal air classifying apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 24, 1981
Grant Date -
N/A
app pub date -
Jun 28, 1979
filing date -
Jun 28, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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