液中分散粒子の気泡による付着除去実験

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書誌事項

タイトル別名
  • Experiment on Adhesion and Removal of Suspended Particle in Liuuid by Bubble
  • 液中分散粒子の気泡による付着除去実験--初期除去速度定数による検討
  • エキ チュウ ブンサン リュウシ ノ キホウ ニ ヨル フチャク ジョキョ ジッケン ショキ ジョキョ ソクド テイスウ ニ ヨル ケントウ
  • 初期除去速度定数による検討
  • Investigation on Removal Rate Constant at Initial Stage

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抄録

It is widely recognized that inclusions in steel cause defects to the products. Therefore, it is important to remove inclusions from liquid steel. The attachment and removal by bubble flotation is expected as one of promising techniques for inclusion removal in liquid steel. The process of particle removal by bubbles is influenced by various factors, including the liquid flow, particle diameter, bubble size. The present work is intended to investigate experimentally the effects of some factors such as particle diameter, gas flow rate and agitation speed to particle removal rate. In this study, water model experiments on bubble flotation have been done under turbulent flow condition using a mechanically agitated vessel. It was confirmed that the change in particle concentration of suspended liquid with time shows first order kinetics until 4 minutes in the initial stage. Furthermore, it was found that the particle removal rate has increased with increasing particle diameter, gas flow rate and agitation speed.

収録刊行物

  • 鉄と鋼

    鉄と鋼 92 (10), 584-590, 2006

    一般社団法人 日本鉄鋼協会

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