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<p>The determination of the optimal model and parameter settings for a high-pressure roller (HPGR) frequently necessitates a substantial investment of human resources, materials, and time, which complicates the selection process and increases costs. This paper examines the indexes of the HPGR in the context of practical experiments, simulations and modeling. Furthermore, the crushing process of ore in the HPGR is simulated in terms of connecting bond breakage. It was found that the throughput is related to the roller speed but inversely proportional to the specific pressure, that the crushing efficiency is affected by the roller speed and specific pressure, and that the energy consumption is greatly affected by the specific pressure. It was demonstrated that parameters derived from ore samples from small piston ballast tests can serve as a valuable basis for modeling HPGR parameters on a semi-industrial or even industrial scale. This can serve as a guide for HPGR selection.</p>

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Investigation of Throughput, Energy, and Crushing Efficiency for High-Pressure Grinding Roller Through Piston Ballast Testing and the Discrete Element Method

  • 期刊论文

  • 发表日期：

    2025年4月23日

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  • Le Zheng,
  • Junjie Wu,
  • Zihao Liu,
  • Xingyu Ma,
  • Gaige Yuan,
  • Xiaofei Guo,
  • Lixia Li

摘要

The determination of the optimal model and parameter settings for a high-pressure roller (HPGR) frequently necessitates a substantial investment of human resources, materials, and time, which complicates the selection process and increases costs. This paper examines the indexes of the HPGR in the context of practical experiments, simulations and modeling. Furthermore, the crushing process of ore in the HPGR is simulated in terms of connecting bond breakage. It was found that the throughput is related to the roller speed but inversely proportional to the specific pressure, that the crushing efficiency is affected by the roller speed and specific pressure, and that the energy consumption is greatly affected by the specific pressure. It was demonstrated that parameters derived from ore samples from small piston ballast tests can serve as a valuable basis for modeling HPGR parameters on a semi-industrial or even industrial scale. This can serve as a guide for HPGR selection.