Research into the process of loading the surface of a vibrosieve when a loose mixture is fed unevenly

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.149739

Keywords:

vibrating sieve, loose mixture, specific surface load, uneven mixture feeding

Abstract

The work examines the influence of uneven feeding of a loose mixture on the process of loading a vibrating sieve. In this work, we established regularities of layer thickness, longitudinal and transverse components of velocity, density of loose mixture and specific load on the entire area of a vibrating sieve at uneven feeding at the inlet. The uneven feed was assigned by using a convex profile, a concave profile, and a triangular profile of the initial velocity for width at the inlet of a sieve.

Flow characteristics change equally along the length of a sieve for the profiles considered. Flow characteristics change according to the initial velocity profile for width of the sieve. For a convex profile, the thickness is constant, the surface density and the longitudinal component of the velocity are the greatest along the longitudinal axis of the sieve, and they are the smallest near the side walls, the direction of the transverse component of the velocity is from the longitudinal axis to the side walls. For a concave profile, the thickness is constant, the surface density and the longitudinal component of the velocity are the greatest along the side walls, and they are the smallest along the longitudinal axis, the direction of the transverse component of the velocity is from the side walls to the axis. For a triangular profile, the thickness is constant, the surface density and the longitudinal component of the velocity are the greatest along one side wall, and they are the smallest along the opposite wall, the direction of the transverse component of the velocity is toward the first mentioned side wall.

For a convex profile of the initial velocity, the surface is overloaded along the longitudinal axis of the sieve and it is underloaded along the side walls. For a concave profile, the surface is overloaded near the side walls, and it is underloaded along the longitudinal axis of the sieve. For a triangular profile - the surface is overloaded along one side wall and it is underloaded along the opposite one. The largest deviations of the specific load occur near the inlet section of the flow, the smallest ones - near the outlet section.

The regularities of distribution of the specific load of the sieve are decisive in the design of feeders and distributors of loose mixtures, as well as in calculation of separation modes

Author Biographies

Mykhailo Piven, Kharkiv Petro Vasylenko National Technical University of Agriculture Alchevskykh str., 44, Kharkiv, Ukraine, 61022

PhD, Associate Professor

Department of physics and theoretical mechanics

Vadim Volokh, Luhansk National Agrarian University Alchevskykh str., 44, Kharkiv, Ukraine, 61022

PhD

Department of mechanization of production processes in the agroindustrial complex

Alyona Piven, Kharkiv Petro Vasylenko National Technical University of Agriculture Alchevskykh str., 44, Kharkiv, Ukraine, 61022

Assistant

Department of organization of production, Business and Management

Sergei Kharchenko, Kharkiv Petro Vasylenko National Technical University of Agriculture Alchevskykh str., 44, Kharkiv, Ukraine, 61022

Doctor of Technical Sciences, Associate Professor

Department of Technology Systems Optimization named after T. P. Yevsyukova

References

  1. Zaika, P. M. (2006). Teoriya silskohospodarskykh mashyn. Ochystka i sortuvannia zerna. Kharkiv: Oko, 408.
  2. Zaika, P. M. (1998). Vibracionnoe peremeshchenie tverdyh i sypuchih tel v sel'skohozyaystvennyh mashinah. Kyiv: USKHA, 625.
  3. Tishchenko, L. N., Olshanskiy, V. P., Kharchenko, F. M., Kharchenko, S. A. (2014). Design of dynamics of grain mixture at a separation on the riffled sieve of vibroseparator. Inzheneriya pryrodokorystuvannia, 2 (2), 54–60.
  4. Tishchenko, L. N., Harchenko, S. A. (2013). K primeneniyu metodov mekhaniki sploshnyh sred dlya opisaniya dvizheniya zernovyh smesey na vibroreshetah. MOTROL. Commission of Motorization and Energetics in Agriculture, 15 (7), 94–99.
  5. Tishchenko, L. N., Ol'shanskiy, V. P., Ol'shanskiy, S. V. (2011). Vibroreshetnaya separaciya zernovyh smesey. Kharkiv: «Miskdruk», 280.
  6. Tishchenko, L. N. (2012). Gidrodinamicheskoe modelirovanie dvizheniya sloya zerna po ploskim naklonnym vibroreshetam. Novosti nauchnogo progressa – 2012. Materialy VIII Mezhdunar. nauchno-prakt. konf. Vol. 8. Bolgariya: Sofiya «Byal.Grad.-BG» OOD, 59–67.
  7. Harchenko, S. A. (2015). By simplifying of the equations of dynamics of bubble fluidized of grain mixture on the structural three-dimensional vibrosieve. Mechanization in agriculture, 5, 9–13.
  8. Olshanskii, V., Olshanskii, A., Kharchenko, S., Kharchenko, F. (2016). About motion of grain mixture of variable porosity in the cylindrical sieve of vibrocentrifuge. ТЕKА. Сommission of motorization and energetics in agriculture, 16 (3), 31–34.
  9. Kaceva, R. Z. (1972). Vliyanie neravnomernosti raspredeleniya nagruzki po shirine na prosevaemost' reshet. Trudy ChIMESKh, 62, 202–211.
  10. Akhmadiev, F., Gizzjatov, R. (2013). Separation Processes of Granular Materials by Sizes at the Sieve Classifiers. Journal of Chemistry and Chemical Engineering, 1 (7), 56–63.
  11. Akhmadiev, F. G., Gizzyatov, R. F., Kiyamov, K. G. (2013). Mathematical modeling of thin-layer separation of granular materials on sieve classifiers. Theoretical Foundations of Chemical Engineering, 47 (3), 254–261. doi: https://doi.org/10.1134/s0040579513030019
  12. Ravshanov, N. (2015). The Mathematical Model and New Criteria for a Separation Process of Granular Mixtures. Vestnik TOGU, 1 (36), 83–92.
  13. Goncharov, E. S. (1973). Teoriya neustoychivogo dvizheniya zerna po poverhnosti vertikal'nyh cilindricheskih centrobezhnovibracionnyh reshet. Mekhanizaciya i elektrifikaciya sel'skogo hozyaystva, 25, 39–44.
  14. Tishchenko, L. N., Ol'shanskiy, V. P. (2008). Resheniya uproshchennyh uravneniy gidrodinamiki pri modelirovanii dvizheniya zernovoy smesi po naklonnomu ploskomu reshetu. Visnyk KhNTUSH. Suchasni napriamky tekhnolohiyi ta mekhanizatsiyi protsesiv pererobnykh i kharchovykh vyrobnytstv, 74, 306–312.
  15. Akhmadiev, G. F., Gizzyato, R. F., Nazipov, I. T. (2017). Hydrogasdynamics and Kinetics of Separation of Disperse Media on Sieve Classifiers. Journal of Engineering Physics and Thermophysics, 90 (5), 1077–1086. doi: https://doi.org/10.1007/s10891-017-1659-x
  16. Tishchenko, L. N. (2001). Gidrodinamicheskie harakteristiki psevdoozhizhennyh sypuchih sred pri vibrocentrobezhnom separirovanii na zernopererabatyvayushchih predpriyatiyah. Visnyk KhNTUSH. Suchasni napriamky tekhnolohiyi ta mekhanizatsiyi protsesiv pererobnykh i kharchovykh vyrobnytstv, 5, 13–33.
  17. Tishchenko, L. N., Ol'shans'kiy, S. V., Ol'shans'kiy, V. P. (2009). Opredelenie zakonomernostey skorosti potoka zernovoy smesi na vibroreshete pri neravnomernoy podache. Visnyk KhNTUSH. Suchasni napriamky tekhnolohiyi ta mekhanizatsiyi protsesiv pererobnykh i kharchovykh vyrobnytstv, 88, 5–11.
  18. Samurganov, E. E. (2016). About the motion of the vibroliquefied separated layer of grain on the flat sieve of finite width. Polythematic Online Scientific Journal of Kuban State Agrarian University, 123 (09). doi: https://doi.org/10.21515/1990-4665-123-036
  19. Pogorelova, A. S. (2015). Matematicheskaya model' regulirovaniya urovnya smesi na poverhnosti resheta separiruemogo agregata. Trudy Mezhdunarodnogo simpoziuma «Nadezhnost' i kachestvo», 1, 139–141.
  20. Shevtsov, I. V., Nizavitin, S. S., Mikhaylov, V. V., Kabakov, A. A. (2012). Increase of overall performance of flat sieves at big loadings. Vestnik Kurganskoy GSKhA, 4, 68–70.
  21. Kovrikov, I. T., Tavtilov, I. Sh. (2003). Napravleniya issledovaniy i konstruirovaniya pitateley dlya separirovaniya zerna v vertikal'nom vozdushnom potoke. Vestnik OGU, 7, 196–201.
  22. Zyulin, A. N. (1971). Issledovanie processa separacii v usloviyah ravnomernogo raspredeleniya materiala po poverhnosti resheta. Trudy VIM, 55, 48–57.
  23. Piven, M. (2015). Grain flow dynamics on vibrating flat sieve of finite width. TEKA. Commission of motorization and energetics in agriculture, 15 (3), 113–119.
  24. Piven, M. (2016). Equation of the planned flow of granular grain mixture. TEKA. Commission of motorization and energetics in agriculture, 16 (4), 63–72.
  25. Piven, M. (2017). Numerical solution of the problem of spatial movement of a loose mixture in a vibrolot. TEKA. Commission of motorization and energetics in agriculture, 17 (2), 19–28.
  26. Kovenya, V. M. (2014). Algoritmy rasshchepleniya pri reshenii mnogomernyh zadach aerogidrodinamiki. Novosibirsk: SO RAN, 278.

Downloads

Published

2018-12-07

How to Cite

Piven, M., Volokh, V., Piven, A., & Kharchenko, S. (2018). Research into the process of loading the surface of a vibrosieve when a loose mixture is fed unevenly. Eastern-European Journal of Enterprise Technologies, 6(1 (96), 62–70. https://doi.org/10.15587/1729-4061.2018.149739

Issue

Vol. 6 No. 1 (96) (2018): Engineering technological systems

Section

Engineering technological systems

License

Copyright (c) 2018 Mykhailo Piven, Vadim Volokh, Alyona Piven, Sergei Kharchenko

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.