Dripping and evolution behavior of primary slag bearing TiO<sub>2</sub> through the coke packed bed in a blast-furnace hearth

Yan-xiang Liu; Jian-liang Zhang; Zhi-yu Wang; Ke-xin Jiao; Guo-hua Zhang; Kuo-chih Chou

doi:10.1007/s12613-017-1387-4

Volume 24 Issue 2

Feb. 2017

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文章导航 > 矿物冶金与材料学报（英文） > 2017 > 24(2): 130-138

Yan-xiang Liu, Jian-liang Zhang, Zhi-yu Wang, Ke-xin Jiao, Guo-hua Zhang, and Kuo-chih Chou, Dripping and evolution behavior of primary slag bearing TiO₂ through the coke packed bed in a blast-furnace hearth, Int. J. Miner. Metall. Mater., 24(2017), No. 2, pp. 130-138. https://doi.org/10.1007/s12613-017-1387-4

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Yan-xiang Liu, Jian-liang Zhang, Zhi-yu Wang, Ke-xin Jiao, Guo-hua Zhang, and Kuo-chih Chou, Dripping and evolution behavior of primary slag bearing TiO2 through the coke packed bed in a blast-furnace hearth, Int. J. Miner. Metall. Mater., 24(2017), No. 2, pp. 130-138. https://doi.org/10.1007/s12613-017-1387-4

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研究论文

Dripping and evolution behavior of primary slag bearing TiO₂ through the coke packed bed in a blast-furnace hearth

State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Baogang Zhanjiang Iron and Steel Co. Ltd., Zhanjiang 524000, China

通讯作者:
Ke-xin Jiao E-mail: jiaokexin_ustb@126.com

中文摘要

To investigate the flow of primary slag bearing TiO₂ in the cohesive zone of blast furnaces,experiments were carried out based on the laboratory-scale packed bed systems.It is concluded that the initial temperature of slag dripping increases with decreasing FeO content and increasing TiO₂ content.The slag holdup decreases when the FeO content is in the range of 5wt%-10wt%,whereas it increases when the FeO content exceeds 10wt%.Meanwhile,the slag holdup decreases when the TiO₂ content increases from 5wt% to 10wt% but increases when the TiO₂ content exceeds 10wt%.Moreover,slag/coke interface analysis shows that the reaction between FeO and TiO₂ occurs between the slag and the coke.The slag/coke interface is divided into three layers:slag layer,iron-rich layer,and coke layer.TiO₂ in the slag is reduced by carbon,and the generated Ti diffuses into iron.

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Research Article

Dripping and evolution behavior of primary slag bearing TiO₂ through the coke packed bed in a blast-furnace hearth

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Abstract

Abstract

To investigate the flow of primary slag bearing TiO₂ in the cohesive zone of blast furnaces,experiments were carried out based on the laboratory-scale packed bed systems.It is concluded that the initial temperature of slag dripping increases with decreasing FeO content and increasing TiO₂ content.The slag holdup decreases when the FeO content is in the range of 5wt%-10wt%,whereas it increases when the FeO content exceeds 10wt%.Meanwhile,the slag holdup decreases when the TiO₂ content increases from 5wt% to 10wt% but increases when the TiO₂ content exceeds 10wt%.Moreover,slag/coke interface analysis shows that the reaction between FeO and TiO₂ occurs between the slag and the coke.The slag/coke interface is divided into three layers:slag layer,iron-rich layer,and coke layer.TiO₂ in the slag is reduced by carbon,and the generated Ti diffuses into iron.
- blast furnace slag;
- titanium dioxide;
- packed beds;
- dripping

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References

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Dripping and evolution behavior of primary slag bearing TiO₂ through the coke packed bed in a blast-furnace hearth

中文摘要

Dripping and evolution behavior of primary slag bearing TiO₂ through the coke packed bed in a blast-furnace hearth

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