Numerical Approach Regarding the Effect of the Flight Shape on the Performance of Rotary Dryers from Asphalt Plants

Thedistribution of aggregates in the cross-section drum, case equipment used for production asphalt mixtures, essentially influences performance rotary dryers. In research carried out this article, optimization distribution particles active region drum was pursued by modifying geometric shape flights, taking into account at same time influence technological parameters operation such as rotation speed and filling degree. The studies were performed using discrete element method (DEM), obtained results revealedthat flight geometry strongly drying efficiency. efficiency rectangular double-angled type flights is influenced speed, especially high levels degree (20%), with mass exposed to increasing 41.11% when increases from 10 rpm 15 rpm. Similarly, hook-type show a minimum 15% comparative analysis not only order establish variant that ensures maximum but also point view execution technology. (Original can be deep drawing, they have complex configuration; cup very easily tubular material cut on generators; hook drawing or welding straight plate, L drawing). Taking semi-finished products thick, it possible that, some cases, hot embossing necessary, so making them eliminates these inconveniences. All presented highlight rectangular, are most appropriate shapes regardless speed.