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Investigation of the Continuous Fuming Process by Physical Model Georgi

The industrial slag fuming process exists in two variants-periodic and continuous process. In this report investigations of the continuous fuming process are reported. These are made by physical modeling, with the model liquid of 72 weight% glycerine water solution, according to the criteria: δ 3 ·ρ...

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Bibliographic Details
Published in:Canadian metallurgical quarterly 1999-01, Vol.38 (1), p.1-9
Main Authors: Haralampiev, Georgi, Popov, Nicolai
Format: Article
Language:English
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Summary:The industrial slag fuming process exists in two variants-periodic and continuous process. In this report investigations of the continuous fuming process are reported. These are made by physical modeling, with the model liquid of 72 weight% glycerine water solution, according to the criteria: δ 3 ·ρ/μ 4 ·g = idem The desorption degree of oxygen from the saturated model solutions was compared by blowing them with the air, for both the quadratic and elongated configurations of the furnace. The criteria for equality of the impulse for the unit of mass are as follows: (ρ 1.g ·w 1.g ·V 1.g )/Q 1 = (ρ 2.g ·w 2.g ·V 2.g )/Q 2 The width of the elongated model corresponds to 1 m width of the industrial furnace. The desorption degree of oxygen for the elongated model was found to be 15-40% higher than for the quadratic model.It was shown that the elongated model tends to the model of plug flow. The conclusion is that an elongated furnace will be more convenient for the continuous process. © 1999 Canadian Institute of Mining and Metallurgy. Published by Elsevier Science Ltd. All rights reserved. Résumé Le procédé industriel de fumage de scories existe sous deux variantes-périodique et continue. Dans cet article, on rapporte l'étude du procédé de fumage en continuo On a fait ces études par modélisation physique, le liquide du modèle consistant en une solution aqueuse de 72% en poids de glycérine, d'après le critère: δ 3 ·ρ/μ 4 ·g = idem On a comparé le degré de désorption de l'oxygéne des solutions saturées du modèle en les souffiant avec de l'air, tant pour un four carré que pour un four à configuration allongée. Les critères d'égalité de l'impulse, par unité de masse, sont comme suit: (ρ 1.g ·w 1.g ·V 1.g )/Q 1 = (ρ 2.g ·w 2.g ·V 2.g )/Q 2 La largeur du modèle allongé correspond à l m de largeur du four industriel. On a trouvé que le degré de désorption de l'oxygène du modéle allongè ètait de 15 à 40% plus élevé que pour le modèle carré. On a montée que le modèle allongé tend vers le modèle d'écoulement idéal. On conclut qu'un four allongé conviendrait mieux au procédé en continuo © 1999 Canadian Institute of Mining and Metallurgy. Published by Elsevier Science Ltd. All rights reserved.
ISSN:0008-4433
1879-1395
DOI:10.1179/cmq.1999.38.1.1