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The effects of blast furnace profile on operation are investigated. The investigation is made by use of mathematical simulation models that are able to evaluate the operational conditions as follows: pressure drop, fuel rate and stability against channeling. The considerable number of furnace profiles are evaluated under the condition that inner volume, furnace height and hearth diameter have been given. In this investigation, geometrical parameters of furnace profile on furnace condition are clarified, and the better furnace profile for the furnace condition is shown.KEY WORDS: blast furnace; mathematical model; furnace profile; productivity; pressure drop; fuel rate; stress in packed bed; mass and heat transfer; fluid flow.

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