Particle classification in the reflux classifier

The Reflux Classifier is an innovative device offering advantages in both p article size classification and gravity separation. The system is a combina tion of a conventional fluidised bed and sets of parallel inclined plates a s used to achieve a high throughput in a lamella settler. A reflux action d evelops as a result of fluidised particles segregating onto the inclined pl ates, and returning to the fluidised zone below. This in turn generates imp roved separation per ormance. A kinematic analysis that accounts for the hi gh throughput of the device is presented. Experimental results showing the size classification of glass sphere particles (-200+20 mum) are presented, demonstrating the performance of the device. (C) 2001 Elsevier Science Ltd. All rights reserved.