Title:
焼結用原料の前処理方法
Document Type and Number:
Japanese Patent JP7127395
Kind Code:
B2
Abstract:
To provide a noble and improved pretreatment method for a raw material for sintering, capable of improving productivity of a sintered ore, when a sintered ore is manufactured by using an intermediate particle highly containing iron ore.SOLUTION: There is provided a pretreatment method of a raw material for sintering including a process for preparing a main part granulated article by granulating a part of the raw material for sintering as a main part raw material, and a process for preparing a blend raw material by mixing remaining part of the raw material for sintering as a bypass target raw material with the main part granulated article, in which the bypass target raw material contains a bypass target returned ore, and bypass target iron ore containing particle with particle size of 0.25 mm or more and less than 1.0 mm of 70 mass% or more by mass ratio, and mass% of -0.25 mm particle contained in the blend raw material is mass% of -0.25 mm particle contained in total amount of granulated article obtained by granulating all raw material for sintering or less.SELECTED DRAWING: Figure 5
Inventors:
Yasuhide Yamaguchi
Matsumura Masaru
Matsumura Masaru
Application Number:
JP2018130600A
Publication Date:
August 30, 2022
Filing Date:
July 10, 2018
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C22B1/16; B01J2/00
Domestic Patent References:
| JP2010242226A | ||||
| JP2015193930A | ||||
| JP200997027A |
Attorney, Agent or Firm:
Sumio Tanai
Mitsuo Teramoto
Tomomasa Katsumata
Hiroshi Yamaguchi
Mitsuo Teramoto
Tomomasa Katsumata
Hiroshi Yamaguchi
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