Original scientific paper

Study on distribution of sulfur element in blast furnace (BF) process with different pellet proportions

W. Deng ; University of Science and Technology Beijing, School of Metallurgical and Ecological Engineering, China
L. Zhang ; University of Science and Technology Beijing, School of Energy and Environment Engineering, China
D. Cang ; University of Science and Technology Beijing, School of Metallurgical and Ecological Engineering, China

Abstract

In this study, a series of BF smelting industrial tests were conducted with different proportions of pellet in ironbearing materials in a 450 m₃ BF in Hebei, China. The results showed that with increasing proportion of pellet, total sulfur(S) input amount of the raw materials in BF iron-making process decreased after a slight increase. The sulfur input of pellets increased while that of sinter, coke and coal tended to decrease. On the other hand, the quantity and proportion of sulfur element in BF gas had a small rise while those in BF slag did not change much, and the quantity of sulfur in BF dust and iron remained relatively stable. The result revealed that increasing the pellet proportion will not affect the quality of pig iron (PI), but also can reduce the sulfur load of BF.

Keywords

BF; pellet proportion; distribution of sulfur; reduce; quality

Hrčak ID:

255984

URI

https://hrcak.srce.hr/255984

Publication date:

1.7.2021.

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