Study on softening melting characteristics of iron bearing material in oxygen blast furnace |
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| Authors: | LIU Rongwei PAN Zhonghua LI Jiaxin WEI Rufei KE Ji |
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| Affiliation: | 1.School of Metallurgical Engineering, Anhui University of Technology， Ma′anshan 243002, Anhui, China；2.Baosteel Cooperative Production Branch, MCC Baosteel Technology Services Co., Ltd.， Shanghai 200941, China;3.Province Key Laboratory of Metallurgy Engineering and Resources Recycling (Anhui University of Technology)， Ma′anshan 243002, Anhui, China |
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| Abstract: | The softening melting characteristics of sinter, pellet and mixed ore in oxygen blast furnace and traditional blast furnace were studied by using load softening and dropping equipment. It is found that, compared with the traditional blast furnace under the softening starting temperature of sinter, pellet, and their mixture decreases, the softening ending temperature increases in oxygen blast furnace atmosphere. Under the condition of oxygen blast furnace, the dropping temperature of sinter decreases, the dropping temperature of pellets and their mixture increases, and dropping zone becomes narrow and even disappears. Through the analysis of the data of the soft melting process, it is found that the mixed ore has a certain interaction effect in the oxygen blast furnace atmosphere, which improves the gas permeability of the charge. |
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| Keywords: | Key words：oxygen blast furnace softening melting characteristic gas permeability interaction |
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