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<p>Aiming at the problem that material particles are difficult to participate in the melting pool reaction quickly during the copper slag melting reduction process, this paper designs a new feeder structure. Numerical simulations comprehensively analyzed particle motion behavior and swirl flow characteristics in conventional and helical feeders. Research shows, Within the scope of the study, the best particle dispersion at pitch <i>P</i>&#xa0;=&#xa0;700&#xa0;mm, cone angle <i>β</i>&#xa0;=&#xa0;18°, and inlet inclination <i>θ</i>&#xa0;=&#xa0;14°. The particle dispersion effect and escape time were positively correlated with the velocity and negatively correlated with the particle size. The best dispersion mixing effect was obtained at <i>u</i><sub>in</sub>&#xa0;=&#xa0;3&#xa0;m/s and <i>d</i><sub>p</sub>&#xa0;=&#xa0;0.005&#xa0;m. Complete entrainment vortex structures are formed in the helical feeder, and the impact of creating a vortex is evident. The wall and outflow velocity increased significantly. Low internal turbulence, reduced inhomogeneity, improved particle dispersion. The results of the study provide a theoretical and experimental basis for the design and utilization of copper slag reduction process equipment under molten conditions.</p> Graphical Abstract <p></p>

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Design and Simulation of a New Feeder Structure Based on Copper Slag Melting Reduction

  • 期刊论文

  • 发表日期：

    2025年8月25日

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  • Xiang Li,
  • Yan Liu,
  • Yadong Xiao,
  • Tingan Zhang,
  • Kun Wang

摘要

Aiming at the problem that material particles are difficult to participate in the melting pool reaction quickly during the copper slag melting reduction process, this paper designs a new feeder structure. Numerical simulations comprehensively analyzed particle motion behavior and swirl flow characteristics in conventional and helical feeders. Research shows, Within the scope of the study, the best particle dispersion at pitch P = 700 mm, cone angle β = 18°, and inlet inclination θ = 14°. The particle dispersion effect and escape time were positively correlated with the velocity and negatively correlated with the particle size. The best dispersion mixing effect was obtained at uin = 3 m/s and dp = 0.005 m. Complete entrainment vortex structures are formed in the helical feeder, and the impact of creating a vortex is evident. The wall and outflow velocity increased significantly. Low internal turbulence, reduced inhomogeneity, improved particle dispersion. The results of the study provide a theoretical and experimental basis for the design and utilization of copper slag reduction process equipment under molten conditions.

Graphical Abstract