Effect of Flux Dispersion Behavior on Desulfurization of Hot Metal
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概要
- 論文の詳細を見る
In order to improve the efficiency of the desulfurization process utilizing the mechanical stirring method, the effect of flux dispersion on the hot metal desulfurization reaction was investigated in 1/8-scale water model and 70 kg-scale hot metal experiments.Flux dispersion behavior is divided into three stages, i.e., “non-dispersion,” “transition,” and “complete dispersion.” The desulfurization rate increases remarkably from the “non-dispersion” to the “complete dispersion” stage, corresponding to the change in the condition of particle dispersion.The relationship between the impeller position and the vortex depth is defined as the dispersion index, I. When the dispersion index was over 1, complete dispersion occurred in water model experiments, and the apparent rate constant increased remarkably in hot metal experiments.The observed diameter of the desulfurization slag was 1.4 mm, which is in good agreement with the calculated value, 1.55 mm. This means that fine desulfurization flux aggregates immediately after the addition of the flux. In order to increase desulfurization efficiency, it is important to control this particle aggregation.
- 社団法人 日本鉄鋼協会の論文
- 2010-03-15
著者
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KISHIMOTO Yasuo
Steelmaking Research Department, Steel Research Labs, JFE Steel Corp.
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Kikuchi Naoki
Steelmaking Research Department Steel Research Laboratory Jfe Steel Corp.
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Kikuchi Naoki
Steelmaking Res. Dep. Steel Res. Lab. Jfe Steel Corp.
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NAKAI Yoshie
Steelmaking Research Department, Steel Research Laboratory, JFE Steel Corp.
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SUMI Ikuhiro
Technology Planning Department, Head office, JFE Steel Corp.
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MATSUNO Hidetoshi
Environmental Process Research Department, Steel Research Laboratory, JFE Steel Corp.
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Nakai Yoshie
Steelmaking Research Department Steel Research Laboratory Jfe Steel Corp.
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Sumi Ikuhiro
Technology Planning Department Head Office Jfe Steel Corp.
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Kishimoto Yasuo
Steelmaking Research Department Steel Research Laboratory Jfe Steel Corp.
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Matsuno Hidetoshi
Environmental Process Research Department Steel Research Laboratory Jfe Steel Corp.
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Kikuchi Naoki
Steel Research Laboratory Steelmaking Research Department Jfe Steel Corporation
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Kikuchi Naoki
Steel Research Laboratory Jfe Steel Corporation
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