Numerical simulation of gravity classification of sepiolite particles
ZHOU Youhang
WU Chong
YANG Wenjia
ZOU Xin
YAN Songxiang
ZHONG Chui
Abstract：To screen a wide range of particle sizes of seafoam particle products,a gravity classifier was designed.The gas and seafoam particles form a gas-solid two-phase fluid to establish an Eulerian-Lagrangian two-phase model to solve the kinematic characteristics of the classification process of seafoam particles.By analyzing the motion characteristics of seafoam particles such as trajectory and position and the particle size distribution at the exit of each level,the interval distribution of the exit of each level was determined.The results show that the smaller the particle size of the seafoam particles is the more they are affected by the graded airflow.The grading interval of particles is divided by analyzing the positions of seafoam particles with different parti-cle sizes at different moments.According to the particle size distribution at the exit of each level,seafoam particles from 1 μm to 10 μm show more concentrated particle size distribution and better monodispersity.
Keywords：gravity classificationseafoam particlesmulti-grain sizegas-solid two-phase flownumerical simulation
Publication Date：2023-12-25
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：11( 16-26 )