Media Size Optimisation
Ceramic grinding media size, and distribution of size has a very considerable effect on the efficiency of comminution processes in stirred media mills. Keramos offer a range of services to prove and optimise ceramic grinding media size, guaranteeing our customers the highest grinding process performance.
TEST WORK SCOPE
Keramos media size selection investigations are undertaken according to OEM accredited, and industrially accepted testing procedures. Media size and size distribution also influences the shape of mill product particle size distributions, and has impacts on mill operating parameters and media consumption. This can have significant effects on the efficiency of subsequent mineral separation processes as well as that of the comminution process.
Project design is undertaken in accordance with the Keramos Gold Seal Service Ideology. The customer is involved at all stages of project design to ensure that the laboratory investigations deliver a scope of testing that will provide Keramos’ customer with the most applicable and valuable test work results.
A range of media sizes will be selected through preliminary discussions between the customer and Keramos’ Senior Metallurgical Managers. These media sizes will then be subject to an agreed test suite, investigating grinding efficiency in the relevant laboratory mill type.
The selection of media size also impacts on mill operating parameters, and media consumption. Investigating these aspects of the effect of media size selection can be incorporated into laboratory investigations with ease. This will be determined and discussed with the customer during the initial project design phase.
Keramos can provide these services in the following approved laboratory and pilot technologies:
OUTOTEC HIGMILL – GLENCORE XSTRATA ISAMILL – STIRRED MEDIA DETRITOR (SMD)
INDUSTRY APPROVED LABORATORY TECHNOLOGIES
“Keramos has saved us around AUD$2 million per year directly on media costs. The other savings are mill linings, agitator arms, maintenance costs, downtime, freight and storage. Consequently, we’ve awarded Keramos a long-term contract for the supply of their ceramic grinding media.” –