Filtering cylindrical–conical hydrocyclone--颗粒学报PARTICUOLOGY

Salvador, F. F., Barrozo, M. A. S., & Vieira, L. G. M. (2019). Filtering cylindrical–conical hydrocyclone. Particuology, 47, 54-62. https://doi.org/10.1016/j.partic.2018.11.003

Filtering cylindrical–conical hydrocyclone

Fernanda F. Salvador ^a, Marcos A.S. Barrozo ^b, Luiz G.M. Vieira ^b *

a Federal University of Espírito Santo, Center of Agricultural Sciences and Engineering, Department of Rural Engineering, ZIP Code: 29500-000, Alegre, ES, Brazil
b Federal University of Uberlândia, Chemical Engineering School, Block 1 K, Campus Santa Mônica, ZIP Code: 38400-902, Uberlândia, MG, Brazil

10.1016/j.partic.2018.11.003

Volume 47, December 2019, Pages 54-62

Received 10 August 2018, Revised 23 October 2018, Accepted 8 November 2018, Available online 25 March 2019, Version of Record 7 December 2019.

E-mail: luizgustavo@ufu.br

Highlights

• Filtration influences hydrocyclone performance.

• Hydrocyclone performance depends on location of porous medium.

• Filtering hydrocyclones exhibit higher capacities at the same pressure drop.

• FCyCoH-OT1 was optimized for efficiency: [Di/Dc Do/Dc L/Dc θ] = [0.16 0.19 7.3 9.0°].

• FCyCoH-OT2 was optimized for Euler number: [Di/Dc Do/Dc L/Dc θ] = [0.26 0.35 6.7 20.0°].

Abstract

Hydrocyclones have versatile applications in various industrial processes. They functionn on the principle of centrifugal separation to remove a dispersed phase (particles or drops) from a continuous phase (fluid). In unconventional filtering hydrocyclones, the separation efficiency and energy costs have been improved by combining filtration with centrifugal separation. This work investigated experimentally the effect of incorporating a cylinder and a porous cone in a conventional hydrocyclone. It also evaluated the effects of the main geometric dimensions of the separator on the hydrocyclone performance. A differential-evolution algorithm was applied to optimize the hydrocyclone performance, which was represented as the maximum total efficiency and minimum Euler number. The experimental results validated the optimization results and showed that hydrocyclones with optimized geometries exhibited higher total efficiencies (89.59%) and lower Euler numbers (582) than hydrocyclones with other experimental configurations.

Graphical abstract

Keywords

Solid–liquid separation; Hydrocyclone; Filtration; Differential evolution

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