SciELO - Scientific Electronic Library Online

vol.111 número2The estimation of platinum flotation grade from froth image features by using artificial neural networksApplication of fundamentals in optimizing platinum concentrator performance índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados



Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Em processo de indexaçãoSimilares em Google


Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717
versão impressa ISSN 0038-223X

J. S. Afr. Inst. Min. Metall. vol.111 no.2 Johannesburg  2011




Total primary milling cost reduction by improved liner design



J. DahnerI; A. Van den BoschII

IMagotteaux (Pty) Ltd, South Africa
IIMagotteaux SA, Belgium




Total milling cost is composed of energy, liner and grinding media costs.
In primary high ball load milling, the grinding media play the biggest role in total milling cost. This cost can be drastically reduced by improving the impact condition inside the mill. The impact condition inside the mill is influenced by shell liner design (as well as feed end and discharge design) and the type of discharge. The improvement of the impact condition will result in a significant decrease in grinding media consumption. The softened impact condition allows for better alloy optimization, resulting in a further reduction in grinding media consumption.
Optimized liner design can also improve energy consumption as less energy is wasted in the projection of the grinding media. Magotteaux utilizes tools to simulate and show the grinding media trajectories for shell and end liners.
This paper will present some practical examples where the media and energy consumption can be or has been reduced by optimizing liner design.

Keywords: Comminution, grinding, liner design, grinding media wear



“Full text available only in PDF format”

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons