Super-fine crushing – Pivotal comminution technology from IMP Technologies Pty. Ltd.

C G KELSEY AND J R KELLY (1)

PRESENTED AT IMPC 2016: XXVIII INTERNATIONAL MINERAL PROCESSING CONGRESS PROCEEDINGS, SEPTEMBER 11-15, QUEBEC CITY, CANADA

ABSTRACT

Dry crushing trials at pilot scale have shown that the IMPTEC Super-fine Crusher has the capacity to generate ultra-fine products from hard mineral assemblages presenting at either coarse or fine feed sizes. The super-fine crusher was introduced at the 27th International Mineral Processing Congress in Santiago Chile, with results from a range of duties, which demonstrated the crusher’s potentially expansive operating scope. This paper focuses on current preparations to progress the technology from pilot scale to commercial scale within a concrete production plant, where lead blast furnace slag will be crushed to ultra-fine sizes to generate an active silica product for use as a supplementary cementitious material, which can replace Ordinary Portland Cement. A key objective of the operation is to demonstrate an economical route to reducing the cost of concrete production, improving concrete quality and reducing greenhouse gas emissions. The paper also highlights the potentially key contribution super-fine crushing can make to the long-term viability of iron ore beneficiation by simplifying comminution flow-sheets and reducing operating costs. There is every indication that the technology has the potential to feature universally in metalliferous and industrial mineral flow-sheets.

CITATION

Kelsey C G and Kelly J R. Super-fine crushing – Pivotal comminution technology from IMP Technologies Pty. Ltd., in IMPC 2016: XXVIII International Mineral Processing Congress Proceedings, September 11-15, Quebec City, Canada, 2016, Published by the Canadian Institute of Mining, Metallurgy and Petroleum (CIM).

CEEC thanks the International Mineral Processing Congress (IMPC). Copyright for all papers presented at a Congress are held by the author(s) and hence may be submitted for publication after the Congress to any Journal of their choice.

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(1) IMP Technologies Pty. Ltd. Suite 4E, Level 4, 166 Keira Street, Wollongong, NSW, Australia 2500.