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dc.contributor.authorFranke, J.
dc.contributor.authorMichalek, S.
dc.contributor.authorSchurmann, P.
dc.contributor.authorAchkar, O.
dc.contributor.authorWest, Geoffrey
dc.contributor.editorWilly Kracht
dc.contributor.editorRomke Kuyvenhoven
dc.contributor.editorGonzalo Montes-Atenas
dc.date.accessioned2017-01-30T11:27:53Z
dc.date.available2017-01-30T11:27:53Z
dc.date.created2011-03-17T20:01:37Z
dc.date.issued2010
dc.identifier.citationFranke, Jochen and Michalek, Stan and Schurmann, Paul and Achkar, Olga and West, Geoffrey. 2010. Automated condition monitoring of mill ball size distribution and grate open area, in Kracht, W. and Kuyvenhoven, R. and Montes-Atenas, G. (ed), Procemin 2010 - 7th International Mineral Processing Seminar, Dec 8 2010, pp. 283-290. Santiago, Chile: Gekamine Ltd.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/11957
dc.description.abstract

Grinding media in coarse grinding tumbling mills constitute the biggest consumable cost to a comminution processing plant, therefore it is critically important to minimize associated wear. Secondly, efficient grinding is dependent on tight control of the desired ball size distribution, or else optimum impact breakage cannot be assured. Despite the significance of minitoring ball size distribution for mill operation, no practically deployable systems are currently in industry use to measure it. This paper describes a new method for highly accurate, comprehensive, and rapid determination of ball size distribution.Accurate SAG and AG mill product size control is dependent on appropriate Grate Open Area dimensions. Wear of the grate hole edges or in the plate thickness results in an increase of the open area due to the tapered hole cross section, which can result in oversize product exiting the mill. Conversely, some grate castings feature peening of the edges during mill operation, thereby decreasing open area, and therefore preventing the desireed top size product from exiting the mill.SAG mill throughput requires grate holes to remain open or else throughput is restricted. Many grates in operation are pegged by grinding media to varying degrees of severity. This paper introduces a comprehensive, accurate and rapid method to measure and track the size and pegging status of each and all grate holes in situ, and therefore provides tracking information on the Open Area of a SAG mill. This enables operators to control the primary mill product size and therefore the opportunity to stabilize downstream processes.

dc.publisherGekamine Ltd
dc.titleAutomated condition monitoring of mill ball size distribution and grate open area
dc.typeConference Paper
dcterms.source.startPage283
dcterms.source.endPage290
dcterms.source.titleProcemin 2010: Proceedings of the 7th International Mineral Processing Seminar
dcterms.source.seriesProcemin 2010: Proceedings of the 7th International Mineral Processing Seminar
dcterms.source.isbn9789568504410
dcterms.source.conferenceProcemin 2010 7th International Mineral Processing Seminar
dcterms.source.conference-start-dateDec 8 2010
dcterms.source.conferencelocationSantiago, Chile
dcterms.source.placeSantiago, Chile
curtin.note

This paper was originally published in the PROCEMIN 2010 - 7th International Mineral Processing Seminar proceedings. For more information please refer to: www.procemin.cl

curtin.departmentDepartment of Spatial Sciences
curtin.accessStatusOpen access


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