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The analysis of wear model of working members in ball mills during ore milling

The article discusses simulation modeling of apatite–nepheline ore milling process with determining wear parameters of mill lining in Rocky DEM. The analysis focuses on the wear and its types that arise in ball mills, and it is found that there are the abrasive, impact– abrasive and fatigue types of wear depending on the strength of the treated rocks and on the mode of motion of the treated media in the mill. The authors describe the tests aimed to determine the wear resistance indexes of materials used to manufacture working members of ball mills. From the modeling, it is found that ball lining experiences the impact–abrasive wear when operating in the mode of fall and the abrasive wear when operating in the cascade mode, and the linear wear in the latter case is on average 40–50% lower than in the other two modes. Using the program-calculated parameters of milling process, the service life of the model linings is determined. From the comparison of the testing and modeling data, it is concluded that the Archard wear equation used in the program enables sufficiently accurate modeling of wear processes in ball mills in different operating modes provided the required corrections are made for the physical and mechanical properties of the treated materials.

Keywords: abrasive and impact wear, mineral material milling, ball mill, lining wear, numerical modeling, DEM method, wear resistance index, Archard model.
For citation:

Plaschinsky V. A., Beloglazov I. I., Akhmerov E. V. The analysis of wear model of working members in ball mills during ore milling. MIAB. Mining Inf. Anal. Bull. 2024;(7):91–110. [In Russ]. DOI: 10.25018/0236_1493_2024_7_0_91.

Acknowledgements:
Issue number: 7
Year: 2024
Page number: 91-110
ISBN: 0236-1493
UDK: 004.94
DOI: 10.25018/0236_1493_2024_7_0_91
Article receipt date: 20.02.2023
Date of review receipt: 26.01.2024
Date of the editorial board′s decision on the article′s publishing: 10.06.2024
About authors:

V.A. Plaschinsky1, Cand. Sci. (Eng.), e-mail: SlavaPlash@yandex.ru, ORCID ID: 0000-0003-0326-4514,
I.I. Beloglazov1, Cand. Sci. (Eng.), Assistant Professor, e-mail: s195040@stud.spmi.ru, ORCID ID: 0000-0003-1692-4745,
E.V. Akhmerov1, Graduate Student, e-mail: s195040@stud.spmi.ru, ORCID ID: 0000-0003-1692-4745,
1 Empress Catherine II Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia.

 

For contacts:

V.A. Plaschinsky, e-mail: SlavaPlash@yandex.ru.

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