Model Experiment on Inclusion Removal by Bubble Flotation Accompanied by Particle Coagulation in Turbulent Flow
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概要
- 論文の詳細を見る
Inclusion behavior like nucleation, diffusional growth, coagulation and removal in steel refining are complicated process, whereas mathematical simulation makes it possible to describe each behavior in detail. Many works have been performed in respect of the individual mechanism of inclusion behavior. However, the whole behavior is not clearly understood yet, and especially, an experimental evaluation of combined phenomena has not been carried out sufficiently until now. In this study, a cold model experiment of bubble flotation accompanied by coagulation of polystyrene particle in an electrolyte solution has been conducted in an agitated vessel under turbulent flow condition. In addition, an empirical equation of bubble flotation in a turbulent flow has been proposed from observed results of the water model experiment. This empirical equation has been combined with the population balance equation on particle coagulation, and removal rates have been predicted. Furthermore, a correction has been adopted in the population balance equation proposed by Nakaoka et al. Resultantly, a linear coupling model with bubble flotation and coagulation has been verified its applicability to a prediction of time dependence of particle number density and size distributions under various conditions.
- 社団法人 日本鉄鋼協会の論文
- 2009-07-15
著者
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Taniguchi Shoji
Graduate School Of Engineering Tohoku University
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SHIMASAKI Shin-ichi
Graduate School of Environmental Studies, Tohoku University
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ARAI Hirotada
Graduate School of Environmental Studies, Tohoku University
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MATSUMOTO Katsutoshi
Department of Chemical and Biological Engineering, Hachinohe National College of Technology
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Shimasaki Shin-ichi
Graduate School Of Environmental Studies Tohoku Univ.
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Arai Hirotada
Graduate School Of Environmental Studies Tohoku University
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Shimasaki Shin-ichi
Graduate School Of Environmental Studies Tohoku University
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Matsumoto Katsutoshi
Department Of Chemical And Biological Engineering Hachinohe National College Of Technology
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