Powder classifier

Details Powder classifier Powder classifier

1997-05-01

1999-08-03

Noland, Kenneth W.

Classifying, separating, and assorting solids

Fluid suspension

Gaseous

209148, B07B 400

Patent

active

059313056

ABSTRACT:
The present invention provides a powder classifier using a classification rotor capable of classifying powder with high efficiency and high accuracy. The classification rotor is attached to a rotating shaft as a body and rotatably supported in a casing. Within the classification rotor, a cavity is formed from the outer edge to the center and classifying vanes are provided around the circumference. The cavity is bent downwardly near the center with the lower end connected through a fine powder passage to a fine powder outlet. The outer edge of the classification rotor is connected to a coarse powder outlet. After feeding powder from a powder supply port, the powder is rotated by the classifying vanes such that coarse powder particles are taken out from the rough outlet by centrifugal force and fine powder particles are taken out by airflow from the fine powder outlet.

REFERENCES:
patent: 3275140 (1966-09-01), Rasmussen
patent: 3670886 (1972-06-01), Hosakawe et al.

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