Acta Mechanica Slovaca 2024, 28(3):18-24 | DOI: 10.21496/ams.2024.024

Laws of Particle Entrainment from Fluidized Bed Apparatuses

Mykola Yukhymenko1, Ruslan Ostroha1, *, Denys Ostroha1, Yakov Mikhajlovskiy1
Sumy State University, 2 Rymskogo-Korsakova St., 40007 Sumy, Ukraine

The article presents the results of experimental studies of the process of entrainment of particles of fine fractions from the fluidized bed of polydisperse mixture of granular superphosphate. A review of the main analytical dependencies for determining the amount of entrainment from the fluidized bed is presented. The results of experimental studies of the entrainment process from the fluidized bed of small particles with a size less than 1 mm and large particles with a size more than 1 mm in the interval of gas flow velocities 0.5 - 5.0 m/s are given. The results of calculating the value of fine fraction entrainment from the fluidized bed of superphosphate granules according to the known equations are analysed. The analytical dependence, which is more rational from the practical side, is proposed.

Keywords: granular fertilizers, fine fraction, separation, gas flow, fraction, fine particle concentration, weighted layer, gas flow velocity

Received: March 22, 2024; Revised: July 25, 2024; Accepted: September 8, 2024; Published: September 15, 2024  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Yukhymenko, M., Ostroha, R., Ostroha, D., & Mikhajlovskiy, Y. (2024). Laws of Particle Entrainment from Fluidized Bed Apparatuses. Acta Mechanica Slovaca28(3), 18-24. doi: 10.21496/ams.2024.024
Download citation

References

  1. Liu, Z., Xie, Y., Wang, Y., Yu, J., Gao, S., Xu, G. (2012). Tandem fluidized bed elutriator - Pneumatic classification of coal particles in a fluidized conveyer. Particuology, 10 (5), 600-606. doi: https://doi.org/10.1016/j.partic.2012.03.005 Go to original source...
  2. Leva, M. (1951). Elutriation of Fines from Fluidized Systems. Chem. Eng. Prog., 47 (1), 39-45.
  3. Osberg, G. L., Charlesworth, D. H. (1951). Elutriation in a Fluidized Bed. Chem. Eng. Prog., 47 (11), 566-570.
  4. Kunii, D., Levenspiel, O. (1969). Entrapment and elutriation from fluidized beds. Journal of Chemical Engineering of Japan, 2 (1), 84-88. doi: https://doi.org/10.1252/jcej.2.84 Go to original source...
  5. Davidson, J. F., Harrison, D. (Eds.) (1985). Fluidization. Academic Press, 733.
  6. Pemberton, S. T., Davidson, J. F. (1986). Elutriation from fluidized beds - I. Particle ejection from the dense phase into the freeboard. Chemical Engineering Science, 41 (2), 243-251. doi: https://doi.org/10.1016/0009-2509(86)87005-1 Go to original source...
  7. Pemberton, S. T., Davidson, J. F. (1986). Elutriation from fluidized beds - II. Disengagement of particles from gas in the freeboard. Chemical Engineering Science, 41 (2), 253-262. doi: https://doi.org/10.1016/0009-2509(86)87006-3 Go to original source...
  8. Liu, Y.-D., Kimura, S. (1993). Fluidization and entrainment of difficult-to-fluidize fine powdermixed with easy-to-fluidize large particles. Powder Technology, 75 (2), 189-196. doi: https://doi.org/10.1016/0032-5910(93)80081-k Go to original source...
  9. Rodríguez, J. M., Sánchez, J. R., Alvaro, A., Florea, D. F., Estévez, A. M. (2000). Fluidization and elutriation of iron oxide particles. A study of attrition and agglomeration processes in fluidized beds. Powder Technology, 111 (3), 218-230. doi: https:// doi.org/10.1016/s0032-5910(99)00292-2 Go to original source...
  10. Monazam, E. R., Breault, R. W., Weber, J., Layfield, K. (2017). Elutriation of fines from binary particle mixtures in bubbling fluidized bed cold model. Powder Technology, 305, 340-346. doi: https://doi.org/10.1016/j.powtec.2016.09.046 Go to original source...
  11. Zenz, F. A., Weil, N. A. (1958). A theoretical-empirical approach to the mechanism of particle entrainment from fluidized beds. AIChE Journal, 4 (4), 472-479. doi: https://doi.org/10.1002/aic.690040417 Go to original source...
  12. Fournol, A. B., Bergougnou, M. A., Baker, C. G. J. (1973). Solids entrainment in a large gas fluidized bed. The Canadian Journal of Chemical Engineering, 51 (4), 401-404. doi: https://doi.org/10.1002/cjce.5450510402 Go to original source...
  13. Mathur, K. B., Epstein, N. (1974). Spouted beds. Vancouver: Department of Chemical Engineering University of British Columbia. 288 p.
  14. Yukhymenko, M., Ostroha, R., Bocko, J. (2022). Design of a shelf pneumatic classifier for separating a polydisperse mixture of granulated superphosphate. Eastern-European Journal of Enterprise Technologies, 6 (1 (120)), 33-42. doi: https://doi.org/10.15587/1729-4061.2022.67037 Go to original source...
  15. Malewski, J. (2017). On accuracy of sieve analysis. In Proceedings of the Annual Conference on Aggregates KruszMin'17. Wroclaw, 103-111
  16. Sieve analysis. Taking a Close Look at Quality (2009). Retsch GmbH Haan: Haan, 52.
  17. Green, D. W., Southard, M. Z. (2019). Perry's Chemical Engineers' Handbook. McGraw Hill Professional.
  18. Hartnett, J. P. (Ed.) (1968). Analytical Heat Diffusion Theory. Academic Press. doi: https://doi.org/10.1016/b978-0-12-459756-3. x5001-9 Go to original source...

This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.