Designing for a reduced carbon footprint at Greenfield and operating comminution plants

Pokrajcic, Zeljka, Morrison, Rob and Johnson, Bill (2009). Designing for a reduced carbon footprint at Greenfield and operating comminution plants. In: D.Malhotra, P. R. Taylor, E. Spiller and M. LeVier, Recent Advances in Mineral Processing Plant Design. Mineral Processing Plant Design - An update 2009 Conference, Tucson, Arizona, U.S.A., (560-570). 30 September - 3 October, 2009.

Author Pokrajcic, Zeljka
Morrison, Rob
Johnson, Bill
Title of paper Designing for a reduced carbon footprint at Greenfield and operating comminution plants
Conference name Mineral Processing Plant Design - An update 2009 Conference
Conference location Tucson, Arizona, U.S.A.
Conference dates 30 September - 3 October, 2009
Proceedings title Recent Advances in Mineral Processing Plant Design
Journal name Recent Advances in Mineral Processing Plant Design
Place of Publication Littleton, Colorado, U.S.A.
Publisher Society for Mining, Metallurgy, and Exploration
Publication Year 2009
Year available 2009
Sub-type Fully published paper
ISBN 9780873353168
Editor D.Malhotra
P. R. Taylor
E. Spiller
M. LeVier
Start page 560
End page 570
Total pages 11
Collection year 2010
Language eng
Formatted Abstract/Summary New comminution circuits design strategies are presented. The aim of the new strategies is to improve the overall efficiency of the comminution process and reduce the total energy consumption of a comminution circuit. The strategies described can be applied during the design of a greenfield comminution circuit and be applied to improve the performance and energy efficiency of an operating comminution circuit.

The energy efficient strategies can be summarized by:

1. Use of new technology to evaluate the potential for rejection of liberated gangue at coarse particle sizes.

2. A modified comminution strategy where more efficient grinding and crushing equipment is used to redistribute comminution energy and to minimize energy consumption as equipment power and embedded energy in media and wear materials. This strategy can provide the beneficial additional effect of a "tighter" size distribution more suitable for the following separation process.

3. A quantitative approach to the selection of target product size through thorough analysis of quantitative liberation data.

These factors can be combined to improve the performance of a comminution circuit by tailoring the design to suit better the properties of the orebody. This can significantly decrease the overall energy consumption and the resulting carbon footprint of the comminution circuit.
Subjects E1
840399 First Stage Treatment of Ores and Minerals not elsewhere classified
091404 Mineral Processing/Beneficiation
Q-Index Code E1
Q-Index Status Confirmed Code

 
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Created: Thu, 26 Nov 2009, 15:11:40 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre