Effects of apex/vortex ratio on the isobaric surface and particle separation performance of a hydrocyclone

2021 ◽  
Author(s):  
Feng Li ◽  
Peikun Liu ◽  
Xinghua Yang ◽  
Yuekan Zhang ◽  
Xiaoyu Li ◽  
...  
Keyword(s):  
Particle Separation ◽  
Separation Performance ◽  
Isobaric Surface

Cyclic Flow Experiments of a Fine Particle Separation Hydrocyclone

2007 ◽  
Author(s):  
Lixin Zhao ◽  
Minghu Jiang
Keyword(s):  
Flow Condition ◽  
Fine Particle ◽  
Fine Particles ◽  
Separation Efficiency ◽  
Amplitude Ratio ◽  
Particle Separation ◽  
Separation Performance ◽  
Period Ratio ◽  
Cyclic Flow ◽  
Signal Type

Basic separating principle of hydrocyclones and the cyclic experimental research facilities are introduced. The difficulty of separating fine particle is described. Based on a solid-liquid hydrocyclone used for separating fine particles, effect of cyclic flow condition on hydrocyclone’s performance is studied. Effects of cyclic period ratio, cyclic flowrate amplitude ratio, Reynolds number, gas liquid ratio, and the cyclical signal type on the hydrocyclone’s fine particle separation performance, especially on relative overflow purifying rate were studied in detail. The results show that the separation efficiency of the hydrocyclone operated under cyclic flow condition can be higher than that in steady condition, when the cyclic period ratio is about 0.68 and the cyclic flowrate amplitude ratio is about 2%. Rectangular wave seems to be the best cyclic signal for enhancing the hydrocyclone’s separation efficiency. The cyclical change of flowrate leads to the increasing of hydrocyclone’s energy consumption to some extent, while the increasing amount is very less, which is no more than 3% in general.

Study of the Particle Separation Performance of a Dust-settling Hopper

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Bofu Wu ◽  
Jinlai Men ◽  
Jie Chen
Keyword(s):  
Fluid Dynamics ◽  
Particle Concentration ◽  
Separation Efficiency ◽  
Simulation Analysis ◽  
Numerical Study ◽  
Particle Separation ◽  
Separation Performance ◽  
Particle Removal ◽  
Airflow Velocity ◽  
Calculation Results

This paper presents a numerical study to predict the particle separation performance of a dust-settling hopper using computational fluid dynamics. The Euler-Lagrange approach was employed to analyze the particle separation efficiency and the outflow particle concentration of the dust-settling hopper under different inlet airflow velocities. The calculation results obtained reveal that the overall particle separation efficiency and the outflow particle concentration decrease with the increase of the inlet airflow velocity, and the particle grade efficiency increases with particle size. Since there is a paradox between the particle separation performance and the particle removal performance for a street vacuum sweeper, it is necessary to counter-balance the effects of the inlet airflow velocity on them. According to the simulation analysis, an appropriate inlet airflow velocity is provided for the design of the dust-settling hopper.

scholarly journals Ring-Shaped Baffle Effect on Separation Performance of Lithium Carbonate Micro Particles in a Centrifugal Classifier

Micromachines ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 980
Author(s):  
Moonjeong Kim ◽  
Jemyung Cha ◽  
Jeung Sang Go
Keyword(s):  
Flow Field ◽  
Particle Motion ◽  
Particle Separation ◽  
Lithium Ion ◽  
Lithium Carbonate ◽  
Movement Direction ◽  
Design Parameters ◽  
Separation Performance ◽  
Discrete Phase Model ◽  
Micro Particles

In this work, a centrifugal classifier for separating lithium carbonate particles, used as a cathode material for lithium-ion batteries, was investigated. This work numerically evaluates the internal flow and particle separation performance of the centrifugal classifier. The complex turbulent flow field in the classifier is key to understanding particle motion. A Reynolds stress model, to describe air flow field, and a discrete phase model, to track particle motion, were applied to a numerical simulation. Design parameters such as mass flow rate and rotor speed were investigated, and a ring-shaped baffle, in particular, was designed to investigate the effects of flow and particle separation in the centrifugal classifier. The simple geometry of the baffle changes the movement direction of unseparated particles to the rotor cage region, and increases the local air velocity in the separation zone. The numerical analysis results were verified through a baffle experiment.

Design boundary layer structure for improving the particle separation performance of a hydrocyclone

2019 ◽  
Vol 350 ◽  
pp. 1-14 ◽  
Author(s):  
Lanyue Jiang ◽  
Peikun Liu ◽  
Yuekan Zhang ◽  
Xinghua Yang ◽  
Hui Wang ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Layer Structure ◽  
Particle Separation ◽  
Separation Performance ◽  
Boundary Layer Structure

Effect of new blade of centrifugal separator on particle separation performance

2016 ◽  
Vol 162 ◽  
pp. 120-126 ◽  
Author(s):  
Tetsuya Yamamoto ◽  
Takashi Kageyama ◽  
Hideto Yoshida ◽  
Kunihiro Fukui
Keyword(s):  
Particle Separation ◽  
Separation Performance ◽  
Centrifugal Separator

Effect of Inlet Duct Shape on Particle Separation Performance of Cyclone Separator.

2000 ◽  
Vol 33 (2) ◽  
pp. 273-276 ◽  
Author(s):  
Hideto Yoshida ◽  
Atsushi Sugitate ◽  
Kunihiro Fukui ◽  
Eiji Shinoda ◽  
Jiefu Ma
Keyword(s):  
Particle Separation ◽  
Separation Performance ◽  
Cyclone Separator ◽  
Inlet Duct

A bubble- and clogging-free microfluidic particle separation platform with multi-filtration

Lab on a Chip ◽  
2016 ◽  
Vol 16 (23) ◽  
pp. 4517-4526 ◽  
Author(s):  
Yinuo Cheng ◽  
Yue Wang ◽  
Zengshuai Ma ◽  
Wenhui Wang ◽  
Xiongying Ye
Keyword(s):  
Particle Separation ◽  
Operational Stability ◽  
Separation Performance

A microfluidic particle separation platform featuring anti-clogging, degassing and multi-filtration functions for enhanced separation performance and operational stability.

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