Modeling Erosion Wear Rates in Slurry Flotation Cells

摘要: In processes using slurry as the working fluid, wear due to solid particles impinging on elements of process units is a serious reliability issue. This study considers modeling damage in flotation cells, which are widely used mineral processing. Flotation cells typically cylindrical vessels where an impeller agitate enabling liberation minerals from slurry. Some solids, particularly those entrained stream, can impact wall cell, leading material loss and eventually structural integrity. The problem predicting remaining life unit erosion requires understanding various sub-processes: flow modeling, particle–fluid interaction, energy interactions at surface, mechanism itself. this study, empirically developed equations for field mixing vessel with Rushton turbine formulating model relating accumulation rate simple set measurable variables. To validate model, PIV technique was measure velocities near physical cell transparent walls that match refractive index fluid. An Eulerian–Langrangian approach has been determine particle trajectories effect squeeze film incorporated into modify velocity distribution prior impacts. analytical based impulse momentum any shape striking flat massive surface describe lost walls. Finally, takes account velocity, attack angle, properties surface. verified against second measures different locations within cell.