Numerical modeling of bulk flow on a pelletizing disc in different rotational regimes

Abstract

Pelletizing processes are used in various industries to agglomerate fine materials. Investigation of this process is important for optimizing corresponding equipment and machines. In this article the particle-based discrete element method is used to simulate the particle behavior of a dry material on an inclined rotating disc (pelletizing disc). The process is modelled in different rotation regimes and by varying the inclination angle of the disc. Qualitative model verification is performed by a comparison of numerical simulations with experimental data. Contact data is used to analyze the flow mode of the simulated material and for detecting critical rotation speeds.

Effects of DEM Parameters and Operating Conditions on Particle Dynamics in a Laboratory Scale Rotating Disc

“…The effects of different operating variables, such as rotational speed, filling degree (FD) and angle of inclina-tion (AI), on the motion and contacts of particles are still not fully understood (Lima et al, 2022). Furthermore, as granulation is a dynamic process, investigating both the responses that are directly related to the granule formation (i.e., particle velocity, and number and force of contacts between particles) and flow regimes can also be a potential tool to optimize the granulation process in rotating discs (Gladky et al, 2021).…”