Air current classifying separator
AssigneeNippon Pneumatic Manufacturing Co., Ltd.
InventorsHiroshi Morimoto, Nozomu Oda, Hiromu Terada
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Abstract
The object of the classifier of the present invention is to reduce the classification point for classifying powder. The classifier includes a classifying cover having a conical bottom surface, a classifying plate provided under the classifying cover and having a conical top surface opposite the conical bottom surface of the classifying cover, and a plurality of louvers provided annularly around a classifying chamber defined between the conical bottom surface and the conical top surface to define passages for secondary air therebween. The conical bottom surface is inclined at a larger angle than the conical top surface.
Claims10
A classifier comprising:
- a casing;
- a conical cover provided over said casing and having a conical bottom surface;
- a classifying plate provided under said conical cover and having a conical top surface, said classifying plate and said conical cover being arranged so as to define a classifying chamber between said conical bottom surface of said conical cover and said conical top surface of said classifying plate;
- a plurality of louvers arranged around said classifying chamber, wherein passages are defined between said louvers;
- a fine powder discharge tube connected to a central portion of said classifying chamber;
- and
- a coarse powder discharge port defined around an outer edge of said classifying plate;
- wherein said conical cover, said classifying plate, said louvers, said fine powder discharge tube, and said coarse powder discharge port are arranged such that powder to be supplied into and whirling in said classifying chamber is to be accelerated by secondary air to be introduced into said classifying chamber through said passages so as to discharge fine powder through said fine powder discharge tube and so as to discharge coarse powder through said coarse powder discharge port;
- and
- wherein said conical bottom surface of said conical cover has a larger inclination angle than said conical top surface of said classifying plate with respect to a horizontal plane of said classifying chamber.
Dependencies are inferred from the claim text.