電炉スラグの粒化処理

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書誌事項

タイトル別名
  • Construction of New Slag Granulating Equipment.
  • 技術資料 電炉スラグの粒化処理
  • ギジュツ シリョウ デンロ スラグ ノ リュウカ ショリ

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説明

Recently, the improvement of working environment for treating electric arc furnace slag and the expansion of uses for treated slag as the product have become an important issue in Japan. To solve these problems, OJI Steel Co., Ltd. has introduced the new slag granulating equipment developed by Nippon Steel Corporation and Hamada Heavy Industries, Ltd. which has the following features.<BR> (1) The combination of mechanical crushing in a two-stage rotating drum and quick cooling by water spraying enables to direct production of granulated slag as the product from molten slag with low energy consumption.<BR> (2) The product is small spherical particles which promise wider applications due to their physical properties.<BR> (3) Compared to the conventional slag treatment which involves slow cooling in a pit and mechanical crushing of solid slag, the working environment is improved and plant space is economized.<BR> The manufacturing technology of slag particles with mixing the oxidation slag and the reduction slag has been established by Oji Steel though operation wise improvement for stable slag granulation after its start-up in May 2000.

収録刊行物

  • 電気製鋼

    電気製鋼 74 (1), 55-59, 2003

    大同特殊鋼株式会社

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