高炉の静特性におよぼす操業条件変更の効果について

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タイトル別名
  • Effect of the Change in Operating Conditions on the Static Characteristics of Blast Furnace
  • コウロ ノ セイ トクセイ ニ オヨボス ソウギョウ ジョウケン ヘンコウ ノ コウカ ニ ツイテ

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説明

On the basis of blast furnace (A), the changes of the production rate of pig iron and the carbon ratio caused by the change of the operating conditions, such as top gas pressure, average diameter of iron ores, blast volume, blast temperature, ratio of steam injection and ratio of oxygen enrichment, have been determined with the aid of the mathematical model of a blast furnace which was developed hitherto. Results obtained by use of digital computer (HITAC 5020E) are illustrated in Figs.1-9<BR>The production rate of pig iron increases with the increase in pressure of top gas, blast temperature, ratio of steam injection and ratio of oxygen enrichment, but the rate of the increase in production rate of pig iron for decreases with the increase in these operating factors. It is found that there is a similar tendency of the effect of the decrease in diameter of iron ores. The carbon ratio decreases with increase in top gas pressure, blast temperature and ratio of steam injection, but its variation is little in the lower region of the oxygen enrichement and increases with the oxygen enrichment in the upper region.<BR>For blast volume, the production rate of pig iron and the carbon ratio increase in proportion to the increase in the blast volume.

収録刊行物

  • 鉄と鋼

    鉄と鋼 54 (9), 1032-1037, 1968

    一般社団法人 日本鉄鋼協会

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