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Applications of Fine Screens in Grinding Circuits


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Author S B Valine, J E Wheeler and L G Albuquerque


It has long been known that closed circuit grinding with a classifier improves grinding efficiency, reduces unit specific power consumption, and reduces over grinding. The classification device removes material from the circuit that has reached the desired size and returns coarse material back to the mill for further grinding. The efficiency of the classifier is an important factor in the overall performance of a grinding circuit. The classifier affects the capacity of the grinding circuit and the metallurgical performance of downstream operations. A review of historical research and modern case studies is used to demonstrate the benefits of high frequency screens for classification in grinding circuits.

S B, Wheeler, J E and Albuquerque, L G, 2012. Applications of fine screens in
grinding circuits, in Proceedings 11th AusIMM Mill Operators’
, pp 389-394 (The Australasian Institute of Mining and Metallurgy: Melbourne).