焼結鉱およびコークス性状モデルによる高炉炉内状態の検討

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タイトル別名
  • Estimation of the Inner States by the Use of the Model to Evaluate the Influence of Sinter and Coke Properties at Blast Furnace
  • ショウケツコウ オヨビ コークス セイジョウ モデル ニ ヨル コウロロナイ

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抄録

The effects of sinter qualities and coke qualities on the condition inside of the blast furnace are theoretically investigated by the two-dimensional mathematical model of blast furnace which was coupled with the degradation model of sinter and coke.<BR>The following results are obtained ;<BR>(1) Effect of sinter quality.<BR>1) The pressure drop in the blast furnace increases with the increase of RDI or the decrease of the particle diameter of charged sinter.<BR>2) The increase in RDI increases ore to coke ratio (O/C) and also gas utilization ratio because it increases the reduction rate of sinter. As the result, gas and solid temperature in the upper part of the blast furnace decreases.<BR>(2) Effect of coke quality.<BR>1) Coke degradation rate below the solution loss zone in the blast furnace decreases with the increase of CSR.<BR>2) The decrease of the solution loss reaction causes the increases of the gas utilization ratio and gas and solid temperature in the blast furnace.<BR>The simulated results agreed with the observed results of an actual blast furnace.

収録刊行物

  • 鉄と鋼

    鉄と鋼 73 (15), 2060-2067, 1987

    一般社団法人 日本鉄鋼協会

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