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Patent Searching and Data


Title:
POWDER-CLASSIFYING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/114234
Kind Code:
A1
Abstract:
This powder-classifying apparatus classifies a starting material powder having a particle size distribution, into fine powder and coarse powder. The apparatus has: a disk-shaped centrifugal separation chamber constituted as a space between two facing members; a plurality of air nozzles that supply a gas into the centrifugal separation chamber and generate a spiral flow; a starting material spray nozzle for supplying a starting material powder into the spiral flow generated in the centrifugal separation chamber; a fine powder recovery pipe passing through the center portion of one of the members of the centrifugal separation chamber, for discharging to outside of the centrifugal separation chamber a gas that includes a fine powder classified in the centrifugal separation chamber; a cylindrical first wall part provided to the opening made by the fine powder recovery pipe; and a cylindrical second wall part facing the first wall part, and provided to the other member, leaving a prescribed gap therebetween.

Inventors:
JIKIHARA KENJI (JP)
KYUGO MASARU (JP)
EMA AKIHIKO (JP)
UEHARA HIROOMI (JP)
Application Number:
PCT/JP2016/050521
Publication Date:
July 21, 2016
Filing Date:
January 08, 2016
Export Citation:
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Assignee:
NISSHIN SEIFUN GROUP INC (JP)
International Classes:
B07B7/08
Foreign References:
JP4785802B22011-10-05
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)
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