Morning - The grinding circuit
Segmentation, wear expression and performance follow up
Review the best way to monitor grinding media performance considering change in operating conditions and ore characteristics. We will discuss how to ensure that the grinding media used is optimal to the milling condition.
Mill internals survey (Liner, ball charge, feed and discharge configuration)
We will discuss the best ways to ensure that your mill internals are in good condition and have the correct design as it is essential for optimal grinding efficiency and mineral liberation.
Optimizing grinding efficiency (grinding survey, batch mill test and simulation)
How to obtain the perfect grind size with the least energy is a recurrent challenge faced by mill operators. This sessions will review how to asses current grinding performance and identify optimization opportunities.
Lunch by Magotteaux
Afternoon - The flotation/leaching circuit
Conducting a metallurgical surveying of a flotation circuit
Why conduct surveys? To gather data and knowledge about how the flotation circuit operates. The speaker will provide a description on how to prepare for and conduct a metallurgical survey (both block and down-the-bank) of their flotation circuit so that the correct samples are collected to be able to mass balance the results.
Completing a pulp chemistry and surface analysis survey
To compliment the metallurgical survey it is always a sound strategy to gather pulp and surface chemical information. Details of how to gather this data through the grinding and flotation circuit are provided. Some insights into how to interpret the data are given.
Mass balancing the survey
Now that you have all these numbers there is a need to mass balance the survey . . . this is the fun bit! The speaker will break down the process into bite size pieces to make the mass balancing experience more accessible.
Recovery-by-size and liberation class
The devil is in the detail. A mass balanced survey on an unsized basis provided some information, but to truly understand where the losses are within a circuit and what is diluting the concentrate there is a need to delve more deeply by examining the data on a size-by-size basis at the elemental and mineralogical level. These methods are reviewed by the speaker.
Linking metallurgical performance with the chemistry
Finally, the metallurgical data is combined with the chemical data to provide a better picture of why things happen. This also allows the practitioner to propose and test solutions that can lead to improvements in performance and increased revenues for their company.
Dinner by Magotteaux