Please use this identifier to cite or link to this item:
Title: Innovative hydrocyclone inlet designs to reduce erosion-induced wear in mineral dewatering processes
Authors: Xu, P.
Wu, Z. 
Mujumdar, A.S. 
Yu, B.
Keywords: Air core
Computational fluid dynamics
Erosion rate
Turbulence model
Issue Date: 2009
Citation: Xu, P., Wu, Z., Mujumdar, A.S., Yu, B. (2009). Innovative hydrocyclone inlet designs to reduce erosion-induced wear in mineral dewatering processes. Drying Technology 27 (2) : 201-211. ScholarBank@NUS Repository.
Abstract: The hydrocyclone is a mechanical separation device that is used widely in mineral processing. The solid particles in mineral slurries are separated according to their density, size, and shape by the centrifugal force generated by an induced vortex motion in a cylinder-on-cone vessel. The larger and denser particles move closer to the wall region due to their greater inertia and descend by gravity; a higher concentration suspension is thus collected at the bottom of the hydrocyclone. The cleaned liquid and hydrodynamically smaller particles exit through an overflow outlet at the top of the hydrocyclone. Higher velocities, within limit, generally yield higher collection efficiency. However, higher stream velocities cause severe erosion of the internal wall of hydrocyclones as mineral slurries generally are abrasive. The objective of this study is to use the computational fluid dynamic (CFD) technique to model the turbulent swirling flow and predict regions of significant wear and how they are influenced by design of the inlet ducting. New inlet designs are proposed and investigated numerically for their erosion characteristics, pumping power requirements, and collection efficiency. Successful innovation in hydrocyclone design will lead to reduced maintenance and lower operating energy costs in mineral processing.
Source Title: Drying Technology
ISSN: 07373937
DOI: 10.1080/07373930802603433
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Aug 15, 2018


checked on Jul 23, 2018

Page view(s)

checked on Aug 17, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.