Coal breakage characterisation. Part 1: breakage testing with the JKFBC

Shi, Fengnian and Zuo, Weiran (2014) Coal breakage characterisation. Part 1: breakage testing with the JKFBC. Fuel, 117 PARTB: 1148-1155. doi:10.1016/j.fuel.2013.07.042

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Author Shi, Fengnian
Zuo, Weiran
Title Coal breakage characterisation. Part 1: breakage testing with the JKFBC
Journal name Fuel   Check publisher's open access policy
ISSN 0016-2361
Publication date 2014-01-30
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.fuel.2013.07.042
Volume 117
Start page 1148
End page 1155
Total pages 8
Place of publication Oxford, United Kingdom
Publisher Elsevier
Language eng
Formatted abstract
• An improved device for coal breakage characterisation testing.
• A method to test coal breakage in relation to energy input, particle size and density.
• Experimental evidence to show the effects of particle size and density on energy–coal size reduction relationship.

An improved method for coal breakage characterisation has been developed at the Julius Kruttschnitt Mineral Research Centre (JKMRC). Part 1 of this paper presents the breakage testing method and results, Part 2 gives a breakage model that determines the energy-size reduction relationship for multi-components of particle size and coal density, and Part 3 demonstrates the applications of the model for HGI predictions and coal breakage simulations.

The new method incorporates hardware for a fine particle breakage characterisation test, the JKFBC (JK Fine-particle Breakage Characteriser), a device modified from the standard HGI mill, which has a precision torquemeter installed to record energy utilisation during the experiments. Distinguished from the traditional HGI test, which is based on a single particle size with a single energy, the new characterisation test offers the flexibility to grind coal particles at various sizes, or various densities, or indeed (various components) with a range of energy levels. Energy consumption during the grinding was recorded. Using an Australian and a Chinese coal sample collected from power stations, this paper demonstrates the effects of particle size and density on coal breakage, and elucidates the deficiencies associated with the traditional HGI test.
Keyword Coal
Breakage characterisation
HGI test
Breakage modelling
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 31 July 2013

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Official 2014 Collection
Sustainable Minerals Institute Publications
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Citation counts: TR Web of Science Citation Count  Cited 23 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 27 times in Scopus Article | Citations
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Created: Wed, 30 Oct 2013, 00:34:15 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre