Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Automated condition monitoring of mill ball size distribution and grate open area

    154506_31420_Jochen Paper.pdf (2.833Mb)
    Access Status
    Open access
    Authors
    Franke, J.
    Michalek, S.
    Schurmann, P.
    Achkar, O.
    West, Geoffrey
    Date
    2010
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Franke, 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.
    Source Title
    Procemin 2010: Proceedings of the 7th International Mineral Processing Seminar
    Source Conference
    Procemin 2010 7th International Mineral Processing Seminar
    ISBN
    9789568504410
    School
    Department of Spatial Sciences
    Remarks

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

    URI
    http://hdl.handle.net/20.500.11937/11957
    Collection
    • Curtin Research Publications
    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.

    Related items

    Showing items related by title, author, creator and subject.

    • Fine Grinding in a Horizontal Ball Mill
      Partyka, Trish; Yan, Denis (2007)
      The fine grinding of ores is increasing due to the depletion of coarse grained, easily processed ore bodies and the increased need to process disseminated, fine grained deposits. The main reason ball mills are not utilised ...
    • The distribution of particle size and composition of manganese nodule comminuted during lifting
      Yoon, C.; Kim, J.; Park, H.; Yoo, Kyoungkeun (2015)
      The effect of grinding time on the particle size distribution and chemical composition of manganese nodule was investigated to provide information such as the density and the metal contents of Mn, Fe, Ni, and Co for ...
    • Formation and characteristics of glucose oligomers during the hydrolysis of cellulose in hot-compressed water
      Yu, Yun (2009)
      Energy production from fossil fuels results in significant carbon dioxide emission, which is a key contributor to global warming and the problems related to climate change. Biomass is recognized as an important part of ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.