Revisiting helix classifiers.

Abstract

Helix classifier is a classic equipment in ore dressing. The aim of this study was to provide engineering students and process engineerswith a new method to sizing simplex, duplex and triplex helix classifiers. It was developed from particuology, fluid dynamics and literature data. New formulae for classifier calculation and sizing were accomplished. The resulting construct allows the straightforward development of computer software in order to size this equipment, with only the fluid density and viscosity and basic properties of the granular system being processed as input.