Prediction of Performance of a Hydrocyclone with Filtering Cylinder

Oliveira, D. C.; Pires, Lucas; Vieira, Luiz Gustavo Martins; Damasceno, João Jorge Ribeiro; Barrozo, M. A. S.

doi:10.4028/www.scientific.net/msf.660-661.525

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…Thus, non-conventional hydrocyclones have been studied in recent years, such as filtering hydrocyclones, which were proposed by our research group. In this novel hydrocyclone, the conical section, the cylindrical section, − or both sections were replaced by a filtering wall . The operation of a filtering hydrocyclone is analogous to that of a conventional device, but additionally to the underflow and overflow streams, there is a discharge of a liquid fraction through the porous structure, which modifies the velocity distribution and positively affects the separation performance .…”

Section: Introductionmentioning

confidence: 99%

Design of an Optimized Hydrocyclone for High Efficiency and Low Energy Consumption

Gonçalves

Kyriakidis

Ullmann

et al. 2020

Ind. Eng. Chem. Res.

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Hydrocyclones are centrifugal devices used to perform the separation of a discrete phase (solid or liquid) from a continuous one. Depending on the process goal, particle classification, or thickening, it is possible to enhance the performance of these devices by optimizing their geometric relationships. In this study, innovative geometric relationships for a hydrocyclone were proposed to maximize the separation efficiency and provide low energy consumption. A database composed of 60 hydrocyclones with different geometric dimensions designed over 17 years of research at our laboratory was used to perform this study. Regression equations were adjusted to these previous experimental data, and a differential evolution algorithm was used in the optimization study. The optimized geometry of the hydrocyclone obtained in this work, named MOEH (maximum overall efficiency hydrocyclone), was built, and its performance was compared with the best equipment of the database through numerical simulation and experiments. The results indicated that for fine particles (D 63.2 = 10.80 μm), the MOEH showed better performance than all devices already analyzed by our research group, with an overall efficiency of approximately 9% higher and a 33% reduction of energy consumption when compared with the best hydrocyclone of the database.

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Section: Introductionmentioning

confidence: 99%

Design of an Optimized Hydrocyclone for High Efficiency and Low Energy Consumption

Gonçalves

Kyriakidis

Ullmann

et al. 2020

Ind. Eng. Chem. Res.

Self Cite

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“…(4) Furthermore, Computational Fluid Dynamics (CFD) is an important tool [15] to help elucidate the probable fluid behavior inside the hydrocyclones likewise the equipment performance [16][17][18][19]. For that reason, CFD was applied in this study.…”

Section: Methodsmentioning

confidence: 99%

Study of the Influence of the Underflow Diameter on the Separation Process of an Optimized Hydrocyclone for Concentration Purposes

Gonçalves

Kyriakidis

Vieira

et al. 2017

MSF

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Hydrocyclones are equipment typically used in solid-liquid separation. Such equipment can be used with the purpose of classifying particles or concentrating suspensions. In this context, a new filtering hydrocyclone was conceived through Surface Response and Differential Evolution Algorithm techniques in order to optimize the Euler’s number. Based on this optimized geometry, the aim of the present paper was to verify the influence of the underflow diameter on the overall separation process at 147 kPa on the same optimized hydrocyclone geometry, but without the filtration effect, by performing laboratory experiments and CFD simulations using the commercial software Fluent®. The results showed that the use of the smallest underflow diameter increased up to 44% (v/v) the concentration of the underflow stream, compared to the suspension initially fed, with an Euler’s number of 862. Despite a small decrease (14%) in the total efficiency and an increase from 12.01 to 16.05 of the reduced cut size diameter, compared to the underflow diameter originally used in the optimization procedure, the benefits of recovering liquid by reducing the underflow diameter outweigh these disadvantages.

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“…The optimized hydrocyclone was called H11 [9,10]. The same group of researchers investigated the change of the filtering wall from the conical section to the cylindrical section, giving rise to the cylindrical filtering hydrocyclone [11,12].…”

Section: Introductionmentioning

confidence: 99%

Study of the Capacity in a Totally Permeable Hydrocyclone

Salvador

Silva

Barrozo

et al. 2014

MSF

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Hydrocyclones are equipments that separate a discrete phase (solid, liquid or gas) from a continuous phase (liquid) by generating a centrifugal field. The objective of this work was to study, experimentally, the incorporation effect of cylindrical and conical permeable walls (CyCoFH) on an optimized geometry hydrocyclone (H11) to evaluate the equipment’s processing capacity. By inserting a filtering cone and cylinder, during the operation of these separators, besides the traditionally observed streams (underflow and overflow), there is an additional liquid stream resulting from the filtering process in the conical and cylindrical regions. Despite the low filtrate flow observed during this new equipment’s operation, it was found that the filtration is benefic to hydrocycloning. According to the main results, the CyCoFH hydrocyclone of lower permeability presented a greater processing capacity. The feed flow rate was 23% higher than the corresponding conventional hydrocyclone, in the same geometrical and operational conditions.

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Prediction of Performance of a Hydrocyclone with Filtering Cylinder

Cited by 6 publications

References 7 publications

Design of an Optimized Hydrocyclone for High Efficiency and Low Energy Consumption

Design of an Optimized Hydrocyclone for High Efficiency and Low Energy Consumption

Study of the Influence of the Underflow Diameter on the Separation Process of an Optimized Hydrocyclone for Concentration Purposes

Study of the Capacity in a Totally Permeable Hydrocyclone

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