Dian-qiao Geng, Hong Lei,  and Ji-cheng He, Optimization of mixing time in a ladle with dual plugs, Int. J. Miner. Metall. Mater., 17(2010), No. 6, pp. 709-714. https://doi.org/10.1007/s12613-010-0378-5
Cite this article as:
Dian-qiao Geng, Hong Lei,  and Ji-cheng He, Optimization of mixing time in a ladle with dual plugs, Int. J. Miner. Metall. Mater., 17(2010), No. 6, pp. 709-714. https://doi.org/10.1007/s12613-010-0378-5

Optimization of mixing time in a ladle with dual plugs

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  • Corresponding author:

    Dian-qiao Geng    E-mail: gengdianqiao@163.com

  • Received: 25 January 2010Revised: 11 February 2010Accepted: 7 February 2010
  • Based on the two-phase fluid (Eulerian-Eulerian) model, a mathematical model about the gas-liquid flow and mixing behavior was developed to investigate the effect of the offset of dual plugs, the included angle of dual plugs with a center point, and gas flow rate on the mixing time in a ladle with dual plugs. Numerical results indicate that two types of recirculation zones exist in the ladle. One is the middle recirculation between gas and liquid plumes, and the other is the sidewall recirculation between plumes and the ladle sidewall. The correction shows that the mixing time is in proportion to -0.2676 power of gas flow rate. There is a unique optimum offset of dual plugs with a particular included angle, in turn, a unique optimum included angle of dual plugs exits with a particular offset.
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