Fluid Flow in a Combined Top and Bottom Blown Reactor

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著者

    • ERSSON Mikael
    • Division of Applied Process Metallurgy, Royal Institute of Technology
    • IGUCHI Manabu
    • Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University
    • JONSSON Lage
    • Division of Applied Process Metallurgy, Royal Institute of Technology
    • JONSSON Par
    • Division of Applied Process Metallurgy, Royal Institute of Technology

抄録

Physical modeling was done to study the flow field in a cylindrical bath agitated by bottom purging, top lance blowing and a combination of both injection types. A particle image velocimetry (PIV) system has been used to capture the velocity field of all three cases mentioned above. Special attention was paid to the recirculation loop. Top blowing creates a re-circulation loop in a relatively small volume close to the surface, compared to bottom- and combined-blowing. Increasing bottom flow rate moves the center of the re-circulation loop downwards into the liquid. When top blowing is combined with bottom blowing the center of the re-circulation loop is moved downwards into the liquid with increasing top lance flow rate.

収録刊行物

  • ISIJ international  

    ISIJ international 46(8), 1137-1142, 2006-08-15 

    The Iron and Steel Institute of Japan

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