Title

Oxidação de Mecanismos de Refratários Fundíveis para Corrediças de Alto-forno.

Oxidação de Mecanismos de Refratários Fundíveis para Corrediças de Alto-forno.

Authorship

Camelli, Silvia; Brandaleze, Elena; Madias, Jorge; Topolevsky, Raul

Camelli, Silvia

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Brandaleze, Elena

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Madias, Jorge

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Topolevsky, Raul

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DOI

10.5151/ABM-IRONMAKING-2001-2001219

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Abstract

A study on castables refratários used in blast furnace runners is presented. The objective is to increase the knowledge on the behavior of this type of material. This study includes a characterization of the refractory material, both before and after use. The analysis of the sintering reaction, the study on silicon carbide dissociation, and the thermodynamical interpretation of the SiC-C-O system, along with the post-mortem study results, permitted the identification of the carbon oxidation mechanisms in the various runner zones. Finally, the equilibrium phase diagram analysis and thermal profile diagram of the blast furnace runner allowed us to establish key factors related to castable refractory wear in service.

A study on castables refratários used in blast furnace runners is presented. The objective is to increase the knowledge on the behavior of this type of material. This study includes a characterization of the refractory material, both before and after use. The analysis of the sintering reaction, the study on silicon carbide dissociation, and the thermodynamical interpretation of the SiC-C-O system, along with the post-mortem study results, permitted the identification of the carbon oxidation mechanisms in the various runner zones. Finally, the equilibrium phase diagram analysis and thermal profile diagram of the blast furnace runner allowed us to establish key factors related to castable refractory wear in service.

Keywords

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