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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

REDUCTION DEGREE EFFECT IN SOFTENING AND MELTING PERFORMANCE FOR DIFFERENT METALLIC BURDEN

REDUCTION DEGREE EFFECT IN SOFTENING AND MELTING PERFORMANCE FOR DIFFERENT METALLIC BURDEN

Authorship

Gandra, Beatriz Fausta; Barbosa, Alexandre Alves; Oliveira., Waleska Effgen de

Gandra, Beatriz Fausta
Gandra, Beatriz Fausta

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Barbosa, Alexandre Alves
Barbosa, Alexandre Alves

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Oliveira., Waleska Effgen de
Oliveira., Waleska Effgen de

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DOI

10.5151/2594-357X-22142

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Abstract

The metallic burden reduction behavior is a prerequisite for stable blast furnace operation. Because of this, it is fundamental importance its knowledge, according to the characteristics of each material. In this paper are presented the results of prereduction behavior by one type of sinter and two types of pellets, and its effect on the region of the cohesive zone. The results indicated that a low reduced burden leads to decreased softening temperature, extending the zone of softening and melting, with consequent increase in pressure drop. In other words, the characteristics of prereduction of metallic burden may determine the blast furnace productivity, fuel consumption and operational stability.

 

The metallic burden reduction behavior is a prerequisite for stable blast furnace operation. Because of this, it is fundamental importance its knowledge, according to the characteristics of each material. In this paper are presented the results of prereduction behavior by one type of sinter and two types of pellets, and its effect on the region of the cohesive zone. The results indicated that a low reduced burden leads to decreased softening temperature, extending the zone of softening and melting, with consequent increase in pressure drop. In other words, the characteristics of prereduction of metallic burden may determine the blast furnace productivity, fuel consumption and operational stability.

Keywords

Reduction degree; Cohesive zone; Softening and melting; Blast furnace.

Reduction degree; Cohesive zone; Softening and melting; Blast furnace.

How to refer

Gandra, Beatriz Fausta; Barbosa, Alexandre Alves; Oliveira., Waleska Effgen de. REDUCTION DEGREE EFFECT IN SOFTENING AND MELTING PERFORMANCE FOR DIFFERENT METALLIC BURDEN , p. 665-676. 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-22142