Investigation of recently developed monitoring instruments for DMC circuits at New Acland

Firth, B., Holtham, P., O'Brien, M., Hu, S., Dixon, R., Burger, A. and Sheridan, G. (2012). Investigation of recently developed monitoring instruments for DMC circuits at New Acland. In: Darren Mathewson, Proceedings of the Fourteenth Australian Coal Preparation Conference: Stories from the Coal Face. Fourteenth Australian Coal Preparation Conference, Canberra, ACT, Australia, (346-359). 9-13 September 2012.

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Name Description MIMEType Size Downloads
Author Firth, B.
Holtham, P.
O'Brien, M.
Hu, S.
Dixon, R.
Burger, A.
Sheridan, G.
Title of paper Investigation of recently developed monitoring instruments for DMC circuits at New Acland
Conference name Fourteenth Australian Coal Preparation Conference
Conference location Canberra, ACT, Australia
Conference dates 9-13 September 2012
Proceedings title Proceedings of the Fourteenth Australian Coal Preparation Conference: Stories from the Coal Face
Place of Publication Newcastle West, NSW, Australia
Publisher Australian Coal Preparation Society
Publication Year 2012
Sub-type Fully published paper
ISBN 9780958934411
Editor Darren Mathewson
Start page 346
End page 359
Total pages 14
Collection year 2013
Language eng
Formatted Abstract/Summary The objective of this ACARP supported project was to bring together at a single site the two research groups involved in dense medium cyclone (DMC) instrumentation and software development to demonstrate:
• The long term capability of the instruments in a coal preparation plant environment.
• A comprehensive DMC monitoring and measurement reporting capability, and
• The application of smart sensors to maximise the utility of measurements of this nature.

The instruments were deployed for a minimum of twelve months and apart from some initial issues, were shown to operate effectively in the robust environment of an operating plant. These instruments included:
• Motion Analysers on the desliming, product and reject drain and rinse screens.
• Electrical Impedance Spectroscopes (ElS) for measuring the medium densities of the correct,
• DMC feed, overflow and underflow streams.

A Through Tile Density Meter and ln Stream Density Meter provided measurements of the amount of magnetite in the medium at the DMC vortex finder and underneath the product drain screen. Provision was also made for the on-line transmission of the data from New Acland CPP back to the researchers at CSIRO and the JKMRC.
The motion analysers were calibrated to link the stroke of the screens with the tonnes per hour of the oversize stream reporting from the screens. This meant that the mass flow of feed to the DMC and the product and reject streams was now available dynamically. From this data an estimate, for the first time, of the on-line yield could be calculated.
Q-Index Code EX
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Paper 10A

Document type: Conference Paper
Collections: Julius Kruttschnitt Mineral Research Centre Publications
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Created: Tue, 09 Oct 2012, 14:28:10 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre