Development of a New Solver to Model the Fish-Hook Effect in a Centrifugal Classifier

Centrifugal air classifiers are often used for classification of particle gas flows in the mineral industry and various other sectors. In this paper, a new solver based on multiphase particle-in-cell (MP-PIC) method, which takes into account an interaction between particles, is presented. This makes it possible to investigate flow process classifier more detail, especially influence solid load profile fish-hook effect that sometimes occurs. Depending operating conditions, occurs such apparatus lead reduction efficiency. Therefore, better understanding representation numerical simulations great interest. The results simulation method compared with previous where particle–particle interactions neglected. Moreover, validation carried out by comparing experimental data from laboratory plant characteristic values as pressure loss comparison shows both methods provide similar good efficiency d50; however, only reproduced when particle-particle taken account. movement prove due strong concentration accumulation outer area classifier. These accumulations block radial transport fine particles classifier, then entrained coarser coarse material.