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<p>Dry magnetic separators are suitable for the efficient sorting of iron ore after magnetization roasting. However, the concentrate produced by existing dry magnetic separators is low grade and there is limited processing capacity, particularly when handling fine particles, resulting in low separation efficiency. We have investigated a new type of wind-fed dry magnetic separator through numerical simulation, and analyzed the impact of guide plate setting parameters on the flow characteristics within the internal flow field. The flow characteristics of the solid and gas phases in the equipment’s flow field were simulated, and the effects of guide plate setting parameters on the uneven coefficient of wind velocity, standard deviation of wind velocity, and channel flow resistance were analyzed. Finally, the entropy weight method and TOPSIS were applied to evaluate the guide plate parameters. The optimum layout parameters of the guide plate were determined, which provided theoretical guidance for the efficient operation of the dry magnetic separator.</p>

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Optimization of Layout Parameters of the Guide Plate for the Dry Magnetic Separator Based on Numerical Approach

  • 期刊论文

  • 发表日期：

    2025年9月10日

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  • Xiangzhi Meng,
  • Pengcheng Tian,
  • Peng Gao,
  • Zhidong Tang,
  • Yue Han,
  • Yanjun Li,
  • Yuexin Han

摘要

Dry magnetic separators are suitable for the efficient sorting of iron ore after magnetization roasting. However, the concentrate produced by existing dry magnetic separators is low grade and there is limited processing capacity, particularly when handling fine particles, resulting in low separation efficiency. We have investigated a new type of wind-fed dry magnetic separator through numerical simulation, and analyzed the impact of guide plate setting parameters on the flow characteristics within the internal flow field. The flow characteristics of the solid and gas phases in the equipment’s flow field were simulated, and the effects of guide plate setting parameters on the uneven coefficient of wind velocity, standard deviation of wind velocity, and channel flow resistance were analyzed. Finally, the entropy weight method and TOPSIS were applied to evaluate the guide plate parameters. The optimum layout parameters of the guide plate were determined, which provided theoretical guidance for the efficient operation of the dry magnetic separator.