Improvement of Mixing Efficiencies of Conventional Impeller with Unsteady Speed in an Impeller Revolution

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Kazushi Yanagimoto¹  Shuichi Iwata²  Yuichiro Nagatsu²  Yutaka Tada²  Yoshihito Kato²  Masako Ban² 

[1] ULCAM Ltd.;Department of Applied Chemistry, Nagoya Institute of Technology

关键词: Mixing;    Agitation;    Unsteady Speed Impeller;    Mixing Time;   

DOI  :  10.1252/jcej.38.688

来源: Maruzen Company Ltd

【 摘 要 】

References(15)Cited-By(16)An unsteady mixing speed was applied to laminar mixing in a vessel containing a conventional impeller. Three non-circle cams were combined to generate the unsteady speed in an impeller revolution. The mixing performances of the unsteady speed impeller were compared with those of a conventional impeller operated under a steady speed. The mixing time and the flow pattern were measured by flow visualization using the discoloration method in which sodium thiosulfate reacts with an iodine solution. Because the unsteady motion moved the center of the vortices, the doughnut rings above and below the impeller disappeared when unsteady mixing was employed.

【 授权许可】

Unknown