スクラップ溶解用コークス充〓層型高周波誘導炉の数学的モデルの開発

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タイトル別名
  • Development of Mathematical Model of High-Frequency Induction Furnace with Coke Packed-Beds for Scrap Melting
  • スクラップ溶解用コークス充填層型高周波誘導炉の数学的モデルの開発
  • スクラップ ヨウカイヨウ コークス ジュウテンソウガタ コウシュウハ ユウドウ

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抄録

The high-frequency induction melting furnace with packed beds of coke has been recently developed from many advantages. However, overall transport phenomena of the furnace is still not clear in spite of its importance for optimizing/designing the furnace. In this study, by summarizing the results obtained in the previous studies, a total mathematical model was proposed for simulating heat transfer and material flow in the furnace. Three experiments at different conditions were also conducted by using low-melting-temperature metal in the laboratory scale furnace with graphite packed beds. The results showed that agreement between observed and predicted data in any experiments is good enough for verification of the model. In addition, the experimental data revealed that the decrease of electric current and the reduction of scrap layer influence significantly productivity and temperature of liquid metal at the outlet, respectively. Finally, the model was applied to an industrial furnace, with both temperature and flow fields of scrap, coke and hot metal simulated for the first time. The major findings due to this analysis were that a thermally-inactive region at the center of the scrap layer and predominant channelling of hot metal near the wall exist.

収録刊行物

  • 鉄と鋼

    鉄と鋼 82 (11), 893-898, 1996

    一般社団法人 日本鉄鋼協会

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