Effect of a Cylindrical Permeable Wall on the Performance of Hydrocyclones

Abstract

Hydrocyclones are designed for solid-liquid separation widely used in industry due to their advantages including high separation efficiency. Depending on the purpose desired by the user, it is possible to enhance the performance of the hydrocyclone through the combined use of other unit operations with the hydrocycloning such as filtration. The incorporation effect of a porous cylinder on a hydrocyclone with optimized geometry was studied experimentally. According to the main results, the filtering cylindrical hydrocyclone showed significant average reductions in energy consumption compared to conventional hydrocyclones of the same geometry. Minor differences in terms of total efficiency of the filtering equipment were observed compared to the conventional one.

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

“…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 .…”

Análise do impacto da filtração sobre um hidrociclone concentrador de geometria otimizada / Analysis of the impact of filtration on a concentrator hydrocyclone of optimized geometry

“…Neste estudo, as partes de tamanho fixo foram manufaturadas de latão, e as peças variáveis, de orifício de underflow, feitas de teflon. A modalidade filtrante apresenta parede porosa (Salvador et al 2016), e neste presente caso, apenas o tronco de cone de material permeável foi usado. Vieira et al (2010) estudaram a modalidade cônico-filtrante em diferentes configurações, concluindo que a geometria do equipamento deve ser escolhida dependendo do objetivo da demanda industrial (concentração ou classificação).…”

Análise do efeito da reologia da suspensão na operação de hidrociclonagem / Analysis of the effect of suspension rheology in the hydrocycloning operation

“…Inúmeras pesquisas têm sido desenvolvidas ao longo das últimas décadas com o objetivo de otimizar as principais dimensões de hidrociclones [11][12][13][14][15][16][17][18][19] Não obstante, a Facudade de Engenharia Química da Universidade Federal de Uberlândia (FEQUI-UFU) tem somado esforços na criação de novas geometrias ótimas com características promissoras [9,10,[20][21][22][23][24][25][26][27][28][29] O hidrociclone MAX, objeto do presente estudo, foi concebido na FEQUI-UFU através de um estudo de otimização geométrica que deu origem a um equipamento capaz de concentrar correntes com elevada eficiência. Os testes conduzidos por Panisset (2014)…”