Improvement of sinter productivity by control of magnetite ore segregation in sintering bed

Yuji Iwami, Tetsuya Yamamoto, Nobuyuki Oyama, Hidetoshi Matsuno, Noritaka Saito, Kunihiko Nakashima

研究成果: ジャーナルへの寄稿記事

抄録

Recently, the quality of sinter feed ore used in sintering process has deteriorated. In particular, T. Fe has decreased and gangue component has increased in the sinter feed ore. Increase of gangue is not only the factor to influence sinter qualities, but also the factor to increase coke ratio in the blast furnace operation as the increase of slag ratio. Therefore, to cope with the deterioration of iron ore qualities, studies on alternative iron ore resources and development of its utilization technology have been required. In that kind of new iron ore resources, authors focus on high grade magnetite fine. In the past, there are some studies about the effect of mixing ratio and size of magnetite fine on productivity and quality, but there are few studies about magnetite fine segregation in charging. In addition, magnetite fine decreases sinter productivity by the decrease of permeability of sintering bed. A new study for using large amount of magnetite fine is required. In this research, the control method of magnetite fine segregation by magnetic force at charging and the improvement of sinter productivity by this method was studied. The effect of upper segregation of magnetite fine was studied through the analysis of melting behavior and interfacial reaction of calcium ferrite melts into hematite substrate and magnetite substrate.

元の言語英語
ページ(範囲)325-334
ページ数10
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
103
発行部数6
DOI
出版物ステータス出版済み - 1 1 2017

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Ore sinter
Ferrosoferric Oxide
Magnetite
productivity
magnetite
Ores
beds
sintering
Sintering
Productivity
minerals
iron ores
Iron ores
charging
technology utilization
resources
coke
slags
Hematite
blasts

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

これを引用

Improvement of sinter productivity by control of magnetite ore segregation in sintering bed. / Iwami, Yuji; Yamamoto, Tetsuya; Oyama, Nobuyuki; Matsuno, Hidetoshi; Saito, Noritaka; Nakashima, Kunihiko.

:: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 巻 103, 番号 6, 01.01.2017, p. 325-334.

研究成果: ジャーナルへの寄稿記事

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