Research on the interaction mechanism between different burden for blast furnace of Pangang

Xie Hong’en; Zhu Fengxiang; Hu Peng; Zheng Kui

doi:10.7513/j.issn.1004-7638.2023.01.020

Volume 44 Issue 1

Feb. 2023

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Xie Hong’en, Zhu Fengxiang, Hu Peng, Zheng Kui. Research on the interaction mechanism between different burden for blast furnace of Pangang[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 119-128. doi: 10.7513/j.issn.1004-7638.2023.01.020

Citation:

Xie Hong’en, Zhu Fengxiang, Hu Peng, Zheng Kui. Research on the interaction mechanism between different burden for blast furnace of Pangang[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 119-128. doi: 10.7513/j.issn.1004-7638.2023.01.020

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Research on the interaction mechanism between different burden for blast furnace of Pangang

doi: 10.7513/j.issn.1004-7638.2023.01.020

Pangang Group Research Institute Co., Ltd.,State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China

Received Date: 2022-01-01
Publish Date: 2023-02-28

Abstract

Abstract

In order to explore the interaction mechanism between different burdens in the softening-melting process of the blast furnace in Pangang, the softening-melting properties of different single burdens and their mixed burden were tested. Meanwhile, the interrupt experiment of softening-melting properties of the mixed burden by any two kinds of single burdens at a specific temperature was carried out. Under the experimental conditions, the dropping temperature T_d of lump ore is the lowest. Compared with the pellet, the sinter has a lower final softening temperature T₄₀, a higher dropping temperature T_d, a narrower softening temperature range ΔT_s, and a more comprehensive melting temperature range. Compared with the sinter and pellet, the dropping temperature T_d of mixed burden decreases. During softening and melting, the lump ore infiltrates into sinter or pellet under the action of load, conducive to the mutual erosion between lump ore and phases of the sinter or pellet as well as the migration of elements between different phases, thus promoting the softening and melting of mixed burden.
- blast furnace,
- burden,
- softening-melting property,
- interaction

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References(21)

References

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