Abstract:
Important advances and developments have been made in the last decade in the mathematical modeling of the high-pressure grinding rolls. However, performance prediction considering design variables, such as different roller geometries, or roller wear conditions, is still an engineering challenge. The simulation using DEM coupled to the multibody dynamics (MBD) in the movable roller is shown to be a viable alternative in understanding this operation. However, few studies demonstrate its validity. In the present work, the methodology proposed by the research group was used to assess the effect of using spring-loaded cheek plates, a novel development in the technology. The results open the black box of this technology, showing the potential improvements that could be reached with the application of the spring into the cheek plate. According to the simulation, the spring-loaded cheek plate contains the material between the rollers even with severe wear included in the confinement system, besides increase power and the reduction particle size.