Practical implementation of the multiple dynamic impact crushing method in crushers

In the context of increasing demands on the efficiency of mining processes, the optimization of crushing and crushing of mineral raw materials is becoming a key task. The main goals are to reduce energy consumption, reduce the metal consumption of equipment and improve the quality of the final product. These aspects are critically important in the context of the global trend towards resource conservation and the ecology of production. An innovative crushing method based on multiple dynamic impact is being developed at the N.V. Chersky Institute of Mining of the North of the Siberian Branch of the Russian Academy of Sciences. The use of multiple impact crushing, in addition to a high degree of crushing, also provides selective disclosure of mineral grains without over-grinding, which significantly affects the extraction of valuable components. This method is implemented in crushing machines DKD-300 and RD-MDV-900, which confirm their high efficiency in processing gold-bearing, fluorite and kimberlite ores. Studies on the disclosure of monomineral useful components during crushing in the DKD-300 apparatus have shown that up to 47% of gold with a grain size of more than 100 microns, up to 70% of fluorite, and the preservation of diamond crystals of up to 90% are revealed in crushing products. The introduction of this crushing method opens up new opportunities for optimizing resources and increasing the competitiveness of enterprises.

Matveev A. I., Lvov E. S. Practical implementation of the multiple dynamic impact crushing method in crushers. MIAB. Mining Inf. Anal. Bull. 2025;(9-1):114-125. [In Russ]. DOI: 10.25018/0236_1493_2025_91_0_114.

A.I. Matveev¹, Dr. Sci. (Eng.), Chief Researcher, e-mail: andrei.mati@yandex.ru, ORCID ID: 0000-0002-4298-5990,
E.S. Lvov¹, Researcher, e-mail: lvoves@bk.ru, ORCID ID: 0000-0002-3843-0714,
¹ Chersky Mining Institute of the North, Siberian Branch, Russian Academy of Sciences, Yakutsk, 677980, Russia.

A.I. Matveev, e-mail: andrei.mati@yandex.ru.

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