Issue №: 4(99)
The journal deals with the problems of vibration technologies and machines, mathematical methods of vibration process studies, information on design and technological development, presents teaching and methodological aspects of teaching in the Higher School of Applied Sciences, where vibration machines and technologies are studied.
RESULTS OF RESEARCHES OF DEHYDRATION OF SMALL DISPERSED ROCK MASS ON A VIBRATING DEVICE OF NEW DESIGN
Naduty Vladimir Petrovich Doctor of Technical Sciences, Professor, Head of the Department of Mechanics of Machines and Processes of Mineral Processing, Institute of Geotechnical Mechanics named M.S. Polyakov of the National Academy of Sciences of Ukraine (49005, Dnipro city, st. Simferopol, 2a, nadutyvp@gmail.com)
Sukharev Vitaliy Vitalievich Сandidate of technical sciences, Senior Researcher, Department of Machine Mechanics and Mineral Processing, Institute of Geotechnical Mechanics named M.S. Polyakov of the National Academy of Sciences of Ukraine (49005, Dnipro city, st. Simferopol, 2a, agnivik@ukr.net)
Kostyrya Sergey Vladimirovich Сandidate of technical sciences, Junior Researcher, Department of Machine Mechanics and Mineral Processing, Institute of Geotechnical Mechanics named M.S. Polyakov of the National Academy of Sciences of Ukraine (49005, Dnipro city, st. Simferopol, 2a, kostyrya81@gmail.com)
Great difficulties arise when processing wet mineral raw materials less than 1 mm, and this problem is given large attention. There is an urgent need to dehydrate the final product of mining to a minimum percentage of moisture. Such raw material includes coal, which in the process of mining and processing forms a large number of small particles with a size of 1.0 ÷ 0.05 mm and, when enriched by froth flotation, is saturated with moisture, which complicates the subsequent use of coal. Also, for the processing of man-made deposits, consisting of ash and slag waste, they must be dewatered for subsequent complex processing, which consists in the use of magnetic separation and fine screening.
Mechanical dewatering devices do not always provide the final moisture content required by the market today. Only free and loosely bound moisture is extracted by mechanical methods, and pore and capillary moisture is not removed. Therefore, various sources of heat are used as an auxiliary process for the dehydration of minerals.
The article presents the results of studies of dehydration of finely dispersed rock mass on a vibration device of a new design. Intensification of the dewatering process is achieved due to the vertical conical screw and the creation of a vibroboiling layer. Preliminary studies have shown the effectiveness of the use of a transport-drying device, while it was possible to reduce the humidity in the finished product from 15% to 5%.
According to the results of the experiments, it was found that during the operation of the transport-drying device, the layer thickness decreases from loading to unloading by 3 times, while the path of movement of the material along the working surface increases 2.5 times, the frequency range of vibration excitation from 1000-1200 rpm, the amplitude fluctuations are 4-5 mm and the temperature of the supplied air is 50-80 Сº. Thus, the proposed dewatering device can be used in the mining industry, since, in addition to transportation, it is also capable of dewatering wet material with sufficient efficiency.
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About the journal
The journal "Vibrations in Engineering and Technologies" is included in the list of technical scientific publications of Ukraine
(Category "B", Order of the Ministry of Education and Science of Ukraine dated July 2, 2020 No. 886)
Old version of the site: http://vibrojournal.vsau.edu.ua/
The journal "Vibrations in Engineering and Technology" is indexed by the following databases and catalogs:
The certificateof massmedia State registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University
The journal is devoted to highlighting current issues in engineering, mechanical engineering, and technological processes, including the study of dynamic and oscillatory phenomena in technical systems, the application of mathematical methods for process modeling and analysis, as well as the presentation of results of design-engineering and technological developments. Particular attention is given to the study of vibration processes and their application in modern technologies.
The purpose of the scientific journal “Vibrations in Engineering and Technologies” is to disseminate the results of fundamental and applied research in the field of engineering sciences aimed at developing theoretical foundations and practical approaches to the design, analysis, and improvement of machines, materials, and technological processes, including the use of vibration and oscillatory effects in various sectors of production.
The publication is focused on the formation of a modern scientific and informational environment for the effective exchange of research results, support of innovative development, and implementation of advanced technical solutions in industry, agro-industrial production, and related fields.
The journal promotes the development of interdisciplinary research, the integration of modern engineering approaches, and the enhancement of the efficiency of technological processes and technical systems, including through the rational use of vibration phenomena.
Objectives of the Scientific Journal
To achieve its stated purpose, the journal addresses the following key objectives:
dissemination of results of fundamental and applied scientific research in the fields of mechanics, mechanical engineering, technological processes, machine dynamics, and equipment, as well as in areas related to the application of vibration phenomena in engineering and technologies;
promotion of research aimed at the creation and improvement of machines, mechanisms, and technological equipment based on oscillatory and vibration processes;
support for the implementation of modern technological solutions focused on improving productivity, energy efficiency, and reliability of technical systems;
обеспечение scientific exchange of research results among research institutions, higher education establishments, and industrial enterprises;
development of interdisciplinary cooperation among researchers in the fields of mechanics, materials science, material processing technologies, and automation of technological processes;
dissemination of modern scientific achievements and advanced technologies related to the application of vibration processes in production and technical systems.
Publisher Vinnytsia National Agrarian University
In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published 119 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Ihor Kupchuk, Candidate of Technical Sciences, Associate professor, Associate Professor of the Department of Engineering Mechanics and Technological Processes in the Agricultural Industry Faculty of Engineering and Technology Vinnytsia National Agrarian University is the chief editor of the "Vibrations in engineering and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.
