Classifying – separating – and assorting solids – Fluid suspension – Gaseous
Patent
1984-02-08
1985-11-05
Hart, Charles
Classifying, separating, and assorting solids
Fluid suspension
Gaseous
209144, B07B 902
Patent
active
045512418
ABSTRACT:
A particle classifier includes a generally cylindrical, air and fine particle permeable cage having a closed top and open bottom mounted to a central drive shaft. A casing surrounds the cage and defines a volute air passage about the cage with an air separation zone between the volute and the cage. A generally tangential air inlet is provided in the casing volute and a material inlet is provided in the upper end of the casing. A stationary chamber is positioned below the cage for the air and fine material which enter the cage. From the chamber, the air and fine material is directed to cyclone separators in which the air is separated from the particles. A hopper is positioned below the chamber for collecting coarser material which fails to enter the cage. The size of the volute can be adjusted by a vertical partition within the casing. The partition allows flexibility in setting the air velocity. Means are provided for streamlining the air flow from the air inlet to the cage and retaining particles in the separation zone. In one case, louvers are provided for these two purposes, and in another case a screen is provided between the volute and particle separation zone.
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Jones Harold T.
Saverse Ronald R.
Hart Charles
Sturtevant, Inc.
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