Franchuk, V. I. та Fedoskina, O. та Yerisov, M. та Fedoskin, V. (2023) INNOVATIVE TECHNOLOGY FOR OBTAINING FINE-GRAIN AND POWDER MATERIAL. UNIVERSITAS Publishing. с. 373-386.

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English abstract

The production of fine-grained materials is associated with a high consumption of electricity and is mainly carried out in several stages of processing. The last stage - grinding is the most expensive. This necessitates the creation of new economical machines and technologies. A large amount of research carried out at the Dnipro University of Technology made it possible for the first time to substantiate the possibility of using a vibrating jaw crusher with a vertically located chamber and a pendulum suspension of the jaws as an independent grinding unit for the production of powder materials, as well as in production processes requiring special technological modes. The development of this direction is the creation of a vibroimpact grinder with an inclined working chamber, which provides regulation of the magnitude of the force effect on the material over a wide range. The purpose of the work is to substantiate the need for research and development of new design solutions for vibrating jaw crusher units, modular installations of a production line based on small-sized vibration equipment. The paper indicates the reason for the relatively low productivity of the vibrating jaw crusher and recommends ways to improve it. The possibility of redistributing the percentage of narrow classes of material in the finished product by changing the vibration frequency of the crushing jaws is shown. The analysis carried out shows the possibility of a significant increase in the efficiency of grinding materials in the development of new design solutions for the parallel zone. The features of the developed new class of vibrating jaw crushers with a complex jaw movement, which ensures the process of grinding the material along the entire length of the working chamber, are considered. The creation by a separate module of an innovative technological line for the production of fine-grained and powder materials with a horizontal layout of small-sized vibration equipment is justified.

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