Analysis of the flow pattern of a fluidized bed using alternative designs of air distribution trays.

Authors

  • Alejandro Delgado Universidad Central del Ecuador, Facultad de Ingeniería Química/ Facultad de Ingeniería y Ciencias Aplicadas/ Facultad de Ingeniería Química, Quito, Ecuador.
  • Gilda Gordillo Universidad Central del Ecuador, Facultad de Ingeniería Química/ Facultad de Ingeniería y Ciencias Aplicadas/ Facultad de Ingeniería Química, Quito, Ecuador.
  • HUMBERTO González Universidad Central del Ecuador, Facultad de Ingeniería Química/ Facultad de Ingeniería y Ciencias Aplicadas/ Facultad de Ingeniería Química, Quito, Ecuador.
  • Jorge Santamaría Universidad Central del Ecuador, Facultad de Ingeniería Química/ Facultad de Ingeniería y Ciencias Aplicadas/ Facultad de Ingeniería Química, Quito, Ecuador.
  • Edison García Investigador independiente, Quito, Ecuador.
  • Rita Delgado Investigador independiente, Quito, Ecuador.

DOI:

https://doi.org/10.47187/perf.v1i29.197

Keywords:

Fluidized Bed, Granulator, Air Distribution Plate,, Flow Pattern

Abstract

Fluidization is a unit operation widely used in the pharmaceutical industry, because it encompasses mixing, drying, granulating and coating, due to the versatility in handling air flow patterns applied in granulators with different distribution plates. The technical information regarding the design of pharmaceutical granulators is scarce, In this research air distribution plates were designed and built, in order to enhance the correct operation of fluidized beds by modifying flow patterns. Obtaining various designs of plates, from the simplest; the axial distributor of orifices up to the most sophisticated; the whirlwind. A CAD design program was used for modeling and a 3D printer for manufacturing. When analyzing the incidence of the operation of the plates in the generation of flow patterns and the relationship with particles of different sizes, shapes, and behavior according to the classification of Geldart powders, the plates that showed better characteristics in the different operations presented an effect of combined flow between axial, radial and rotational type, Verifying that the improved flow pattern in the plates it causes a rotational effect on the particles.

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Published

2023-03-24

How to Cite

Delgado, A., Gordillo, G., González, H., Santamaría, J., García, E., & Delgado, R. (2023). Analysis of the flow pattern of a fluidized bed using alternative designs of air distribution trays. Perfiles, 1(29), 16-29. https://doi.org/10.47187/perf.v1i29.197