Authors: M.S. Luchko

Title of the article: Application of a centrifugal jigging machine for upgrading of gold-bearing materials at gold-processing plants

Year: 2022, Issue: 4, Pages: 67-75

Branch of knowledge: 2.8.9. Mineral processing

Index UDK: 622.772

DOI: 10.26730/1999-4125-2022-4-67-75

Abstract: The paper describes the application of jigging in a centrifugal field for the processing of gold-bearing ores as one of the promising methods of gold-bearing ore gravity concentration. The proposed integrated method is based on the combination of a centrifugal field and the process of concentration in confined space (jigging). The paper includes the flowsheet and the operation principles of the CJM-5 jigging machine developed by Irgiredmet. The authors suggest the possible applications of jigging in a centrifugal field at gold-processing plants, for processing placer gold and other minerals. The calculated recovery of gold from final tailings at an existing gold-processing plant (up to 92.12 g/day) shows the feasibility and economic benefits of centrifugal jigging machines for additional recovery of gold from final tailings. Also, the methods of mathematical modeling were used to predict the optimum adjustable process parameters of the CJM-5 operation (jig chamber rotational speed, pulsation frequency and vibration amplitude of a movable cone, underscreen-water flow rate). Gold content in final tailings can be reduced by 30 % using the CJM, while the payback period of centrifugal jigging facility construction will be less than 1 year.

Key words: gravity concentration centrifugal jigging machine gold-bearing material concentration minerals mining and processing final tailings

Receiving date: 04.08.2022

Approval date: 30.08.2022

Publication date: 06.10.2022

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