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ArticleName The process of the mill feed flow along a curved acting face of a vibration mill screen
DOI 10.17580/em.2023.01.13
ArticleAuthor Bardovsky A. D., Gorbatyuk S. M., Gerasimova A. A., Basyrov I. I.

National University of Sciences and Technology–MISIS, Moscow, Russia:

Bardovsky A. D., Professor, Doctor of Engineering Sciences,
Gorbatyuk S. M., Professor, Doctor of Engineering Sciences
Gerasimova A. A., Associate Professor, Candidate of Engineering Sciences
Basyrov I. I., Assistant of Department


The article describes the studies into the process of the mill feed flow along a curved vibratory surface under the action of oriented vibrations. The differential equation of the relative movement of a grinding body in a layer of a milled material along the surface are given. The differential equation of a particle motion is obtained. The equations prove that at a certain ratio of the vibration parameters, the grinding balls of different sizes when moving upward in a milled mass have limit heights. It is found that the best size distribution of the grinding balls on the vibratory surface exists at a certain ratio of the vibration amplitude and frequency and the tangent slope of the acting face. The plotted experimental curves prove that the maximum efficiency of the process is achieved at the acting face vibration amplitude in a range of 0.6–0.8 mm and vibration frequency in a range of 48–54 Hz, and is 8–12% higher than at the amplitudes and frequencies beyond these ranges.

keywords Fine milling, mill screen, curved vibratory surface, mill feed, different size balls, vibration amplitude, vibration frequency

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