Vibrations in engineering and technology

Polievoda Yurii – Candidate of Technical Sciences, Associate Professor of the Department of technological processes and equipment for food and processing industries, Vinnytsia National Agrarian University (Sonyachna st., 3, Vinnytsia, 21008, Ukraine, e-mail: vinyura36@gmail.com).

Volynets Yevhenii – assistant of the Department of General Technical Disciplines and Occupational Safety of the Faculty of Engineering and Technology of the Vinnytsia National Agrarian University (Sonyachna st., 3, Vinnytsia, 21008, Ukraine, e-mail: evgen110596@gmail.com).

Hryshchyshyn Viktor – master's degree in specialty 133 Industrial Engineering of the Faculty of Engineering and Technology of the Vinnytsia National Agrarian University (Serhiy Zulinsky st., 32, Vinnytsia, 21008, Ukraine, e-mail: vitiahryshchyshyn@ukr.net). 

The development of technologies and modern equipment for the agricultural sector, as well as growing competition in the field of growing major agricultural products, lead agricultural producers to try to optimize their own production.

The process of mixing can be thought of as the volumetric movement of particles of two or more components to obtain a homogeneous medium (in terms of composition, physical, mechanical, and other properties). To mix bulk materials, external forces must be applied to allow the particles of the components to be mixed to move relative to each other.

The heterogeneity of the mixture depends on a number of reasons, in particular: the supply of the initial components to the vibrating mixer; insufficient mixing of the bulk mixture causes a deviation in the distribution of component particles, etc.

An analysis of existing mixer designs has shown that most technological processes use rotary drum mixers and mixers with rotating working bodies - paddle, screw, frame.

To study the process of mixing bulk food mixtures, a laboratory and experimental setup was developed, consisting of a vibration-centrifugal mixer, a loading hopper, and a control panel.

The developed machine (mixer) is based on the task of intensifying the process of mixing materials by reducing the adhesive forces between material particles through the use of the gravitational effect. Vibrational impact on the mixing of materials and the mixer's working bodies significantly increases the process productivity, reduce energy consumption and improves the quality of the mixture.

The developed design can be widely used in various industries in the production of spices, bakery mixes, feed, protein and vitamin supplements.

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