The Evaluation of the Mixing Properties of the Mechanically Stirred Cylindrical Vessel

• Ito Kimihisa

  Department of Materials Science and Engineering, Waseda University

• Yamamoto Norihiro

  Graduate Student, Waseda University

• Kuranaga Seiichiro

  Graduate Student, Waseda University

Abstract

The effect of baffles on the mixing of bath liquid and solid particles was investigated using a water model for the mechanically stirred vessel. The baffle whose width is 1/10 of the vessel diameter was enough to enhance the liquid-particles mixing. The LDV measurement showed the formation of the unsteady vertical flow by the baffle. The concept of information entropy was introduced for the evaluation of the mixing properties of the reactor. The vessel was divided into 35 regions and the transition probability for each region was estimated from the velocity profiles obtained from the LDV measurement. The complete mixing time was predicted by the calculation and compared with the observations.

Journal

• ISIJ International

  ISIJ International 46 (12), 1791-1794, 2006

  The Iron and Steel Institute of Japan

Keywords

• steelmaking
• mixing
• baffles
• information entropy
• mixing index
• complete mixing time

Details

• CRID: 1390282681464230912
• NII Article ID: 10018554731
• NII Book ID: AA10680712
• DOI: 10.2355/isijinternational.46.1791
• COI: 1:CAS:528:DC%2BD2sXjsFeiug%3D%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/46/12/46_12_1791/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed