seleção de refratários para fornos de cozimento de anodo refractories selection for anode baking furnace
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ID: 160386
2009
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Abstract
Nos últimos anos, a produção mundial de alumínio tem aumentado e para as empresas continuarem competitivas torna-se necessário que a média do custo de produção do metal seja reduzida. Uma das alternativas é aumentar a vida útil dos refratários usados em fornos de cozimento de anodo, bem como a sua capacidade de produção. Ambas estratégias podem resultar em maior qualidade do anodo e redução no custo de manutenção do forno. O presente trabalho tem por objetivo apresentar a caracterização termo-mecânica dos tijolos refratários utilizados em fornos de cozimento de anodo e a resistência destes materiais ao ataque químico. Os resultados indicam que a escolha da composição mais adequada depende de uma análise sistêmica das propriedades a alta temperatura, da resistência química e das práticas operacionais do forno.
In the latest years, the worldwide production of aluminum is increasing and for the companies to keep their competitiveness it is necessary to reduce the average cost of the metal production. One of the alternatives is to increase the refractories working life used in anode baking furnaces and their production capacity. Both strategies may result in a higher anode quality and reduction of the furnace maintenance costs. This paper aims to present the thermo-mechanical characterization of the refractory bricks used in anode baking furnaces and their resistance to chemical attack. The results indicated that the selection of the most suitable composition depends on a systemic analysis involving the high temperature properties, chemical resistance and the operational practices of the furnace.
In the latest years, the worldwide production of aluminum is increasing and for the companies to keep their competitiveness it is necessary to reduce the average cost of the metal production. One of the alternatives is to increase the refractories working life used in anode baking furnaces and their production capacity. Both strategies may result in a higher anode quality and reduction of the furnace maintenance costs. This paper aims to present the thermo-mechanical characterization of the refractory bricks used in anode baking furnaces and their resistance to chemical attack. The results indicated that the selection of the most suitable composition depends on a systemic analysis involving the high temperature properties, chemical resistance and the operational practices of the furnace.
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tiba2009cermicaseleo
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| Authors | ;P. R. T. Tiba;B.H. Teider;F. Figueiredo;J. B. Gallo;V. C. Pandolfelli |
| Journal | Zootaxa |
| Year | 2009 |
| DOI |
10.1590/S0366-69132009000100016
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