Title:
DEVICE FOR PULVERIZING AND CLASSIFYING POWDER OF ACTIVE METAL
Document Type and Number:
Japanese Patent JP3172320
Kind Code:
B2
Abstract:
PURPOSE: To prevent fine powder pulverized in a pulverization chamber from being infiltrated into the inside of a bearing for supporting the rotary shaft of a grinding disk in a pulverizing device having a form wherein argon gas and other atmospheric gas are introduced into the pulverization chamber.
CONSTITUTION: This device for pulverizing and classifying powder of active metal is constituted of a housing comprising a pulverization chamber 3, a rotary disk 6 and a stationary disk 7 held therein. The bearing 8 of a horizontal rotary shaft 5 supporting the rotary disk 6 is arranged in the outside of the housing 4. Further a closing cover 9 for introducing atmospheric gas into the pulverization chamber 3 is so provided that a closing state is formed in the connection part of a housing 4 and the bearing 8. The injection port 10 of atmospheric gas is provided in the housing 4 and the closing cover 9, respectively. Thereby the device is constituted so as to introduce atmospheric gas into the pulverization chamber 3 from the inside of the closing cover 9.
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Inventors:
Umezu Kasho
Shigeru Kakukake
Kenichi Kobayashi
Yutaka Matsubara
Shigeru Kakukake
Kenichi Kobayashi
Yutaka Matsubara
Application Number:
JP9593593A
Publication Date:
June 04, 2001
Filing Date:
April 22, 1993
Export Citation:
Assignee:
Nippon Heavy Chemical Co., Ltd.
International Classes:
B02C7/02; B02C7/11; B02C23/04; B02C23/10; B02C23/18; B02C23/26; B07B1/28; B07B1/46; (IPC1-7): B02C7/02; B02C23/10; B07B1/28
Domestic Patent References:
| JP6226136A | ||||
| JP316656A | ||||
| JP6190297A |
Attorney, Agent or Firm:
Junzo Ogawa (1 person outside)