EDEM Research Spotlight- Mechanistic ball mill modeling

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RESEARCHER

Victor Alfonso Rodrigues

INSTITUTE

Universidade Federale Do Rio De Janeiro, Brazil

DEPARTMENT

Metallurgical and Materials Department

SUPERVISOR

Rodrigo Magalhaes De Carvalho

TIMELINE

2017-Ongoing

Important advances have been made in understanding ball milling during the last 25 years or so, a great part of it owing to the widespread application of the discrete element method (DEM), which is now an integral part of several advanced ball mill models. EDEM was used in ball mill simulations containing not only the grinding media (steel balls) but also ore particles. This allowed the investigation on the efficiency of the energy transfer environment, by collecting data from collision energy information for prediction of breakage using a mechanistical approach.

Fig 1. Charge behavior of 30cm diameter mill operating to 80% of critical speed, 3mm particles, 25mm balls, 30% of mill filling and 100% voids filling.  

EDEM features allowed the analysis of the collisional environment within tumbling mills and charge mixture which were required to improve the mechanistic model of ball mills developed by our research group.

Victor Alfonso Rodrigues

Universidade Federale Do Rio De Janeiro

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