Movement of the top layer of the grain mixture on the vibrating grooved surface
https://doi.org/10.20914/2310-1202-2018-4-55-62
Abstract
The most unfavourable conditions for the implementation of separation arise in the case where the impurities and clean the grain evenly distributed. Therefore, a layer of granular grain mixture should be pre-prepared for participation in the process, which can be estimated by analyzing the kinematic parameters of the movement of grain particles, which is the purpose of this study. The description of the working body and the process of vibration movement of the grain mixture is given. To describe the vibrational movement of the grain mixture, a two-layer model is considered, in which changes are made due to the presence of riffles in the form of rectilinear plates on the support surface. In the study of the movement of the upper layer of the grain flow, we consider the movement of a material point on an inclined plane that makes horizontal harmonic oscillations perpendicular to the line of the greatest slope. Consideration of the scheme of forces acting on the particle in relative motion and the conditions of motion of the particle, made it possible to write the differential equation of relative motion in the projections on the coordinate axis. The transformations of the obtained dependences allowed us to determine the minimum force of inertia at which the relative motion will begin. By introducing the concepts and designations of the phase angles at which the relative sliding of a particle begins and ends, we determined the type of dependence of the particle velocity upon its sliding. The dependences of the particle movement in the positive and negative directions of the x and y axes, the dependence of the total displacements along the axes, as well as the average particle velocity along the x axis were obtained.the model of the two-layer vibrational movement of the grain flow along the surface with the riffles in the form of rectangular plates at their arrangement perpendicular to the direction of oscillations was Considered.
About the Authors
S. A. Machyhin
Moscow State University of Food production
Dr. Sci. (Engin.), professor, resource saving processes and technologies of food production department, Volokolamskoe Highway, 11, Moscow, 125080, Russia
Dr. Sci. (Engin.), professor, resource saving processes and technologies of food production department, Volokolamskoe Highway, 11, Moscow, 125080, Russia
A. A. Ryndin
Moscow State University of Food production
graduate student, fermentation technologies and winemaking department, Volokolamskoe Highway, 11, Moscow, 125080, Russia
graduate student, fermentation technologies and winemaking department, Volokolamskoe Highway, 11, Moscow, 125080, Russia
A. M. Vasiliev
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy
Cand. Sci. (Engin.), associate professor, processes and apparatus of processing industries department, Timiryazevskaya str., 49, Moscow, 127550, Russia
Cand. Sci. (Engin.), associate professor, processes and apparatus of processing industries department, Timiryazevskaya str., 49, Moscow, 127550, Russia
A. N. Streljuhina
Moscow State University of Food production
Dr. Sci. (Engin.), professor, resource saving processes and technologies of food production department, Volokolamskoe Highway, 11, Moscow, 125080, Russia
Dr. Sci. (Engin.), professor, resource saving processes and technologies of food production department, Volokolamskoe Highway, 11, Moscow, 125080, Russia
References
1. Zhigankov B.V. Issledovanie processa vibroseparirovaniya produktov shelusheniya risa na ploskih yacheistyh poverhnostyah [Investigation of the process of vibrosection of rice peeling products on flat cellular surfaces]. Moscow, 1972. 211 p. (in Russian).
2. Ospanov A.B. Vibracionnoe razdelenie smesi shelushennogo i neshelushenogo risa samosortirovaniem v kol'cevom kanale [Vibrational separation of a mixture of peeled and unshelled rice by self-sorting in the annular channel]. Moscow, 1991. 149 p. (in Russian).
3. Kirakosyan D.V. Ochistka zerna pshenicy ot primesej na riflenyh poverhnostyah [Purification of wheat from impurities on corrugated surfaces]. Moscow, 2014. 213 p. (in Russian).
4. Tarasevich S.V. Obosnovanie parametrov separatora s vibracionno – kachayushchejsya reshetnoj poverhnost'yu dlya zernovyh materialov [Substantiation of the parameters of the separator with a vibration - swinging sieve surface for grain materials.]. Barnaul, 2006. 27 p. (in Russian).
5. Baldanov V.B. Obosnovanie osnovnyh parametrov gravitacionnogo separatora dlya ochistki zerna [Justification of the main parameters of the gravity separator for cleaning grain]. Ulan-Ude, 2013. 22 p. (in Russian).
6. Fedorenko A.S. Parametry separatora dlya ochistki furazhnogo zerna ot krupnyh primesej [The parameters of the separator for cleaning feed grain from large impurities]. Barnaul, 2014. 242 p. (in Russian).
7. Kornev A.S. Povyshenie ehffektivnosti separacii zerna na ploskih reshetah zernoochistitel'nyh mashin [Improving the efficiency of grain separation on flat sieves of grain cleaning machines]. Voronezh, 2015. 156 p. (in Russian).
8. Gievskij A.M. Povyshenie ehffektivnosti raboty universal'nyh vozdushno-reshetnyh zernoochistitel'nyh mashin [Improving the efficiency of universal air-sieve grain cleaning machines]. Voronezh, 2016. 364 p. (in Russian).
9. Abiduev A.A. Povyshenie ehffektivnosti processov frakcionnoj ochistki zerna i semyan [Improving the efficiency of fractional purification of grain and seeds]. Ulan-Ude, 2018. 383 p. (in Russian).
10. Blekhman I.I., Dzhanelidze G.Yu. Vibracionnoe peremeshchenie [Vibrating movement]. Moscow, Nauka, 1964. 410 p. (in Russian).
11. Gortinskij V.V., Demskij A.B., Boriskin M.A. Processy separirovaniya na zernopererabatyvayushchih predpriyatiyah [Separation processes at grain processing enterprises]. Moscow, Kolos, 1980. 304 p. (in Russian).
12. Godlewski S., Tekiel A., Piskorz W., Zasada F. et al. Supramolecular ordering of PTCDA molecules: The key role of dispersion forces in an unusual transition from physisorbed into chemisorbed state. ACS nano. 2012. vol. 6. no. 10. pp. 8536–8545.
13. Mikulionok I.O. Pretreatment of recycled polymer raw material. Russian Journal of Applied Chemistry. 2011. vol. 84. no. 6. pp. 1105–1113.
14. Hopkins J.C., Podgornik R., Ching W.-Y., French R.H. et al. Disentangling the effects of shape and dielectric response in van der Waals interactions between anisotropic bodies. The Journal of Physical Chemistry C. 2015. vol. 119. no. 33. pp. 19083–19094.
15. Tawfick S., De Volder M., Copic D., Park S.J. et al. Engineering of Micro-and Nanostructured Surfaces with Anisotropic Geometriesand Properties. Advanced Materials. 2012. vol. 24. no. 13. pp. 1628–1674.
16. Reserbat-Plantey A., Kalita D., Han Z., Ferlazzo L. et al. Strain superlattices and macroscale suspension of graphene induced by corrugated substrates. Nano letters. 2014. vol. 14. no. 9. pp. 5044–5051.
17. Khan M.A., Nadeem M.A., Idriss H. Ferroelectric polarization effect on surface chemistry and photo-catalytic activity: A review. Surface Science Reports. 2016. vol. 71. no. 1. pp. 1–31.
18. Ruths M., Israelachvili J.N. Surface forces and nanorheology of molecularly thin films. Springer Handbook of Nanotechnology. Springer, Berlin, Heidelberg, 2010. pp. 857–922.
Review
For citations:
Machyhin S.A., Ryndin A.A., Vasiliev A.M., Streljuhina A.N. Movement of the top layer of the grain mixture on the vibrating grooved surface. Proceedings of the Voronezh State University of Engineering Technologies. 2018;80(4):55-62. (In Russ.) https://doi.org/10.20914/2310-1202-2018-4-55-62
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