Authors: V.S. Lyukshin, D.B. Shatko

Title of the article: Improving the process of sorting abrasives by shape

Year: 2022, Issue: 4, Pages: 13-22

Branch of knowledge: 05.02.07 Technology and equipment for mechanical and physico-technical processing

Index UDK: 621.787, 621.789

DOI: 10.26730/1999-4125-2022-4-13-22

Abstract: The technological process for the manufacture of abrasive materials generally involves crushing an ingot of natural or synthetic material on crushing devices into small components (crumb, grain) with subsequent sieving of the resulting fraction on sieves with cells of various sizes. At the same time, the standard process does not involve the separation of abrasives by shape, but, as is known, the shape of single abrasive grains in the general mass can vary in a fairly wide range and include rounded, flat, elongated and other varieties. Differently shaped abrasive grains have different mechanical characteristics, which, in turn, affects the performance of the grinding tool made from these grains. Based on this, research aimed at improving the processes of sorting abrasives by shape is very relevant, since it opens up the prospect of further improving the properties of a wide range of grinding tools. The article is devoted to the study of approaches to the separation of the general abrasive mass into fractions with a specific grain shape. The existing methods of separation of bulk materials have been analyzed. The designs are considered and the operating principle of the original units for abrasive separation is described. The revealed regularities at the separation of abrasive masses of various granularities are presented.

Key words: Separation abrasive material vibrating separator electrostatic separator grain shape gravity force friction force

Receiving date: 18.08.2022

Approval date: 30.08.2022

Publication date: 06.10.2022

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