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Scientific, Technological and Production Journal
ISSN 2079–3332 (print)
ISSN 3034-6835 (online)
founded in 2001

Towards the concept of crushing and grinding of mineral raw materials in mills

Original articles: 2025 No 4

Towards the concept of crushing and grinding of mineral raw materials in mills

DOI: 10.56195/20793332-2025-25-4-59-64

Read in pdf Yu. V. Dmitrak1, V. I. Golik2
  1. Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences, Moscow, Russian Federation
  2. Geophysical Institute of the Vladikavkaz Scientific Center of the Russian Academy of Sciences, Vladikavkaz, Russian Federation
p. 59-64, No.4/2025
Abstract:
The article presents the results of a multifactorial analysis of the main operations of the technological process of grinding mineral raw materials in ball, vibration and planetary mills, the relevance of which will increase as demographic, economic and other conditions change in the countries of the world. The grinding parameters are studied in laboratory and industrial mills operating in mining and processing plants and other workshops for the preparation of mineral raw materials by comparing samples of raw materials and unloading the mill using control sieves. The fineness of the grinding is carried out in a drum mill. Other parameters are investigated using generally accepted methods. It is established that the presence of numerous factors and the empirical nature of the quantities used do not allow the use of the available research base for solving problems of mechanical crushing and grinding. It is recommended to use the criterion of critical stress at impact, the velocity of elastic waves and the value of dynamic viscosity as criteria for the dynamic destruction of brittle media in the production of technological processes. It is shown that there is a stable correlation between the fracture coefficient and the size of the split surfaces during brittle fracture of rocks as a result of impact. It was revealed that the new concept of ore preparation should be based on the phase-structural properties of raw materials, the possibility of disclosure processes, and equipment parameters. Such a concept will be more consistent with the principles of humanization of relations in the «Nature – Man» system. The results of the completed multifactorial studies can be in demand in the development of existing modernized and under construction deposits of solid minerals in the mining industries, as well as in the training of highly qualified personnel in higher educational institutions.
Keywords:
mineral raw materials, grinding, mill, concept, technology, dynamic destruction, analysis
For citation:
Dmitrak YuV, Golik VI. Towards the concept of crushing and grinding of mineral raw materials in mills. Mine Surveying and Subsurface Use. 2025;25(4):59-64. (In Russ.). https://doi.org/10.56195/20793332-2025-25-4-59-64.
Information about the authors:
  1. Yuri V. Dmitrak – Dr. Sci. (Eng.), Professor, Chief Researcher, Head of the Department of Modeling and Management of Mining Systems, Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences, Moscow, 111020, Russian Federation, e-mail: dmitrak@yandex.ru/li>
  2. Vladimir I. Golik – Dr. Sci. (Eng.), Professor, Chief Researcher, Geophysical Institute of Vladikavkaz Scientific Center, Vladikavkaz, Russian Federation
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