期刊
INTERNATIONAL JOURNAL OF MINERAL PROCESSING
卷 157, 期 -, 页码 36-45出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.minpro.2016.09.009
关键词
Breakage characterisation; Size effect; Modelling; Energy efficiency
资金
- AMIRA P9N Program
- Anglo American
- Barrick Gold Corporation
- BHP Billiton
- Rio Tinto
- Teck
- JKTech
- ACARP [C20009, C23056]
- Australian Government Department of Resources, Energy and Tourism in the Asia-Pacific Partnership on Clean Development and Climate Program (APP)
- Newcrest Mining
It has been 10 years since the JK size-dependent breakage model was developed (Shi and Kojovic, 2007). Part 2 of the review focuses on the model application to the assessment of material strength and energy requirements for size reduction. In the application for assessment of ore pre-weakening effects, two methods, the Axb based method and the tic) based method, are reviewed. The review also covers a coke strength index, the JKCSI, which unifies various rotating drum indices in different world standards into one single index, and a procedure to predict coal grindability, the HGI. In the application for energy assessment, the JK size-dependent breakage model is used to smooth the energy-size reduction relationship and predict crusher energy requirement, to explain the non-linear response of power station grinding mill capacity with the coal grindability index HGI, to develop a benchmark energy factor to assess energy efficiency for comminution equipment and circuits, and to estimate specific energy reduction resulting from the high voltage pulse pre-weakening effect. Many of these applications were possible only after the JK size-dependent breakage model became available. (C) 2016 Elsevier B.V. All rights reserved.
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