Measuring turbulence in a flotation cell using the piezoelectric sensor

Meng, Jun, Xie, Weiguo, Brennan, Matthew, Runge, Kym and Bradshaw, Dee (2014) Measuring turbulence in a flotation cell using the piezoelectric sensor. Minerals Engineering, 66-68 1-10. doi:10.1016/j.mineng.2014.06.007

Author Meng, Jun
Xie, Weiguo
Brennan, Matthew
Runge, Kym
Bradshaw, Dee
Title Measuring turbulence in a flotation cell using the piezoelectric sensor
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
Publication date 2014-07-04
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.mineng.2014.06.007
Open Access Status Not Open Access
Volume 66-68
Start page 1
End page 10
Total pages 10
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Formatted abstract
Turbulence and its distribution are of great importance in flotation processing and has been the subject of much research. However, there is no mature technique to measure turbulence in three phase (liquid–solid–gas) systems. In this research, the Piezoelectric Vibration Sensor (PVS) was developed, based on previous research, as a promising tool for turbulence measurements in industrial flotation environments. A frequency response model was established to calculate force applied to the sensor. Experimental results and comparison with Laser Doppler Anemometry (LDA) measurement data showed that the PVS can measure intensity of kinetic energy fluctuation (σv2), which has been found in experiments to correlate with turbulent kinetic energy (TKE), a parameter often related to flotation performance in the literature. The sensor was then applied to a 60 l laboratory batch cell running at different impeller speeds and air flow rates to obtain turbulence profiles. Results showed that the piezoelectric sensor is fully capable of measuring turbulence in a multi-phase environment.
Keyword Turbulence
Piezoelectric sensor
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 4 July 2012. Article in Press

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Official 2015 Collection
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Created: Thu, 10 Jul 2014, 00:02:08 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre