Title:
高炉用のカーボン内装非焼成塊成鉱およびその製造方法
Document Type and Number:
Japanese Patent JP4118604
Kind Code:
B2
Abstract:
A nonfired agglomerated ore which is satisfactory in reduction property in the shaft of a blast furnace and excellent in rapid heating bursting property and a production method thereof are provided. A carbon containing nonfired agglomerated ore for blast furnace which is prepared in such a way that iron oxide and a carbonaceous material are blended with each other to prepare a mixture, a binder is added to the mixture, and the mixture is kneaded, formed, and cured, wherein the agglomerated ore contains carbon in the content of 80 to 120% of the theoretical carbon quantity required to reduce the reducible oxygen in the iron ores to form metallic iron, and the binder is selected so that the crushing strength may be 7,850 kN/m2 or more at room temperature.
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Inventors:
Hideo Kajima
Seita Uekawa
Hiroshi Morimoto
Shinichi Matsunaga
Makoto Naito
Seita Uekawa
Hiroshi Morimoto
Shinichi Matsunaga
Makoto Naito
Application Number:
JP2002153640A
Publication Date:
July 16, 2008
Filing Date:
May 28, 2002
Export Citation:
Assignee:
Tetsugen Co., Ltd.
Nippon Steel Corporation
Nippon Steel Corporation
International Classes:
C22B1/248; C21B5/00; C22B1/243
Domestic Patent References:
| JP6184653A | ||||
| JP62278234A | ||||
| JP63083231A | ||||
| JP57073136A | ||||
| JP2000328144A |
Attorney, Agent or Firm:
Shiina Akira