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International Journal of Coal Preparation and Utilization Volume 39, 2019 - Issue 3
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Articles

Characterization of Breakage and Washability of ROM Coal using X-ray Computed Tomography

C. L. LinDepartment of Metallurgical Engineering, College of Mines and Earth Sciences, University of Utah, Salt Lake City, Utah, USACorrespondence[email protected]
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,
J. D. MillerDepartment of Metallurgical Engineering, College of Mines and Earth Sciences, University of Utah, Salt Lake City, Utah, USAView further author information
,
T. NguyenSchool of Chemical Engineering, University of Queensland, Brisbane, Queensland, AustraliaView further author information
&
A. NguyenSchool of Chemical Engineering, University of Queensland, Brisbane, Queensland, AustraliaView further author information
Pages 145-158 | Received 24 Jan 2017, Accepted 08 Mar 2017, Published online: 18 Apr 2017
 
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ABSTRACT

The most critical parameters for the efficient design of coal processing operations depend on the assessment of coal breakage and washability characteristics of the coal resource. X-ray computed tomography (XCT) technology has been demonstrated to have the capability of analyzing washability and fragmentation parameters (particle size, energy, coal type). In this regard, progeny size distributions are obtained from sequential modified drop shatter tests (different input energy levels) and from XCT analysis. In this way, the breakage characteristics (selection and breakage functions) of coal particles are established and the prediction of particle size distribution (PSD) for different levels of energy input is demonstrated.

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Funding

The authors would like to thank ACARP (C25027) for the assistance and financial support provided.

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