New technology of taphole tar mixes for blast furnaces with 1 or 2 tapholes

Taphole mixes for blast furnaces are usually based on Al(2)O(3)-SiO(2)-SiC-Si(3)N(4)-C systems, bonded by tar, resin or even synthetic oils. The choice of tar or resin as a binder system is based on several blast furnace characteristics and operations. This paper will show the main differences betwe...

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Bibliographic Details
Published inTecnologia em Metalurgia, Materiais e Mineracao Vol. 20100919; pp. 421 - 432
Main Authors Duarte, Alamar Kasan, Ollmann, Alexander Rabello, Ribeiro, Aloisio Simoes, Bassalo, Humberto Chiaretti, Junior, Roberto Da Cruz, Lucena, Daniel Avelar
Format Journal Article
LanguageEnglish
Published 01.01.2010
Subjects
Blast furnaces
Bonding
Brazil
Iron
Mixes
Polymers
Raw materials
Resins
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Summary:Taphole mixes for blast furnaces are usually based on Al(2)O(3)-SiO(2)-SiC-Si(3)N(4)-C systems, bonded by tar, resin or even synthetic oils. The choice of tar or resin as a binder system is based on several blast furnace characteristics and operations. This paper will show the main differences between taphole tar and resin mixes. Moreover, some field results of the traditional tar bonded mix used in blast furnace 2 of ArcelorMittal Tubarao will be shown and compared with the results of the new generation of taphole tar mix. The new product provided a better protection hearth wall, stability during draining and maintaining the productivity of the blast furnace.
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ISSN:2176-1515