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Proceedings of the Ironmaking, Iron Ore and Agglomeration Seminars

ISSN 2594-357X

42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking — vol. 6, num.6 (2012)

Title

INFLUENCES OF IRON-BEARING METALLIZATION RATE ON ITS SOFTENING AND DROPPING PROPERTIES INSIDE BLAST FURNACE

INFLUENCES OF IRON-BEARING METALLIZATION RATE ON ITS SOFTENING AND DROPPING PROPERTIES INSIDE BLAST FURNACE

Authorship

Tuo, Bi-yang; Wu, Sheng-li; Zhang, Li-hua; Wu, Jian-long; Zhou, Yu; Sun., Yin

Tuo, Bi-yang
Tuo, Bi-yang

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Wu, Sheng-li
Wu, Sheng-li

I am this author

Zhang, Li-hua
Zhang, Li-hua

I am this author

Wu, Jian-long
Wu, Jian-long

I am this author

Zhou, Yu
Zhou, Yu

I am this author

Sun., Yin
Sun., Yin

I am this author

DOI

10.5151/2594-357X-22111

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Abstract

The paper mainly studies that the inferences of burden metallization rate on softening-melting dropping properties through softening-melting dropping test of three kinds of different metallization rate of burden, and analyzes shrinkage and pressure difference variety of charge column. The results indicated that the softening interval of pre-reduction mixed burden is bigger compared with the primeval mixed burden, the melting interval narrow with the rise of metallization rate of ferric burden as well as dropping temperature interval. The average pressure difference, maximum pressure difference, and permeability of charge column decrease with the rise of metallization rate of ferric burden as well as softening-melting dropping properties eigenvalue. Besides, the dropping temperature of burden reduces with the rise of carbon content of molten iron. The combination high metallized burden and higher carbon content of molten iron is benefit to decreasing thickness of cohesive zone and improve permeability of cohesive zone.

 

The paper mainly studies that the inferences of burden metallization rate on softening-melting dropping properties through softening-melting dropping test of three kinds of different metallization rate of burden, and analyzes shrinkage and pressure difference variety of charge column. The results indicated that the softening interval of pre-reduction mixed burden is bigger compared with the primeval mixed burden, the melting interval narrow with the rise of metallization rate of ferric burden as well as dropping temperature interval. The average pressure difference, maximum pressure difference, and permeability of charge column decrease with the rise of metallization rate of ferric burden as well as softening-melting dropping properties eigenvalue. Besides, the dropping temperature of burden reduces with the rise of carbon content of molten iron. The combination high metallized burden and higher carbon content of molten iron is benefit to decreasing thickness of cohesive zone and improve permeability of cohesive zone.

Keywords

Iron-bearing burden; Metallization rate; Softening-melting dropping properties; Blast furnace.

Iron-bearing burden; Metallization rate; Softening-melting dropping properties; Blast furnace.

How to refer

Tuo, Bi-yang; Wu, Sheng-li; Zhang, Li-hua; Wu, Jian-long; Zhou, Yu; Sun., Yin. INFLUENCES OF IRON-BEARING METALLIZATION RATE ON ITS SOFTENING AND DROPPING PROPERTIES INSIDE BLAST FURNACE , p. 425-436. In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking, Rio de Jabeiro, 2012.
ISSN: 2594-357X , DOI 10.5151/2594-357X-22111