Distribution of Solid Particles Lighter than Liquid in an Agitated Vessel Stirred by Dual Impellers

この論文にアクセスする

この論文をさがす

著者

抄録

In the present study, we investigated the influences of diameter and impeller position on drawing from the liquid surface and on the dispersion of solid particles lighter than liquid in a vessel stirred by dual impellers. We defined the just drawdown condition as the state in which there are no floating lighter-than-liquid particles on the liquid surface at the just suspension speed for heavier-than-liquid particles. The best type of upper stage impeller, which drew floating particles on liquid surface into the liquid efficiently, was found to be the pitched paddle pumping up and the best impeller-diameter-to-vessel-diameter ratio was 0.5. In addition, the optimal position of the upper side impeller to minimize the just drawdown speed was located at 0.85 of the total liquid level from the bottom of the vessel. We examined the influence of the clearance of dual impellers on the distribution of solid particles in the vessel. The obtained results indicated that the best type of lower stage impeller is the pitched paddle pumping down and the impeller-diameter-to-vessel-diameter ratio is 0.5. The standard deviation of the dispersion of solid particles was found to be lowest when the clearance of the dual impellers to vessel diameter ratio was 0.83.

収録刊行物

  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 41(3), 155-160, 2008-03-01 

    The Society of Chemical Engineers, Japan

参考文献:  9件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  1件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10021109803
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    9425225
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ