Title:
高炉発生物中の湿ダストの再活用方法
Document Type and Number:
Japanese Patent JP5832183
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a simple, practical, and effective method of reusing wet dust present in a material generated in a blast furnace, for effectively using wet dust collected from exhaust gas of an iron-making blast furnace, which method comprises separating the wet dust into three portions, i.e., a portion comprising iron (Fe) as a useful object, a portion comprising carbon (C) as a useful object, and a portion comprising zinc (Zn) as a useful object.SOLUTION: The wet dust is converted into a slurry state, and the resulting slurry is subjected to wet magnetic separation 15, and the magnetically non-attractable portion thereof is subjected to two steps 17, 18 of wet cyclone separation, whereby the wet dust is separated into three portions, i.e., a portion comprising iron (Fe) as a useful object, a portion comprising carbon (C) as a useful object, and a portion comprising zinc (Zn) as a useful object.
Inventors:
Kensuke Shimomura
Yoshihiro Kamikawa
Hiroshi Oda
Takashi Hiromatsu
Yoshihiro Kamikawa
Hiroshi Oda
Takashi Hiromatsu
Application Number:
JP2011158056A
Publication Date:
December 16, 2015
Filing Date:
July 19, 2011
Export Citation:
Assignee:
Hamada Heavy Industries Co., Ltd.
Nippon Steel & Sumitomo Metal Corporation
Nippon Steel & Sumitomo Metal Corporation
International Classes:
C22B7/02; B03B5/28; B03B7/00; B03C1/00; C22B1/00; C22B19/30
Domestic Patent References:
| JP51120466A | ||||
| JP53025201A | ||||
| JP53081405A |
Foreign References:
| WO2005017216A1 |
Attorney, Agent or Firm:
Fujio Nakamae
Yoshihiro Kurita
Takayuki Imanaka
Yoshihiro Kurita
Takayuki Imanaka