Resumen

DELGADO ARAUJO, ¹Alejandro et al. Fluidized bed flow pattern analysis using alternative air distribution plate designs. Perfiles [online]. 2023, vol.1, n.29, pp.16-29. ISSN 2477-9105.  https://doi.org/10.47187/perf.v1i29.197.

Fluidization is a unit operation widely used in the pharmaceutical industry, witch encompasses mixing, drying, granulating and coating, due to the versatility in handling air flow patterns applied in granulators with different distribution plates. 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 size, shape and behavior according to Geldart's classification, the plates that showed better characteristics in the different operations were those that presented a combined flow effect between axial, radial and rotational type, verifying that the flow pattern with better characteristics is the one that causes a rotational effect on the particles.

Palabras clave : Fluidized Bed; Granulator; Air Distribution Plate; Flow Pattern..

        · resumen en Español     · texto en Español     · Español ( pdf )