Improving Gold Ore Classification Efficiency and Flotation Performance Based on Screening Classification Method

Abstract

The hydrocyclone is currently the most commonly used classification device in gold ore processing. However, its efficiency is limited by both its operating principles and structural design, making further improvement in classification performance difficult. In recent years, high-frequency vibrating screens—capable of precisely classifying particles based on their geometric size—have played an increasingly important role in efficient classification. Despite these advantages, there is ongoing debate about their application in classifying gold ores, which are often compositionally complex. To address this issue, this study established a pilot-scale experiment platform to assess the classification performance of high-frequency vibrating screens with gold ore. The results were then compared to those obtained using hydrocyclones. In addition, flotation tests were conducted to examine the relationship between the particle size distribution produced by high-frequency screens and flotation performance. This approach provides a comprehensive evaluation of the potential advantages of high-frequency vibrating screens in processing complex gold ores.