Dust exhaustion systems in the aluminum industry – reference data and design methodology definition problems

Abstract

The study addresses challenges in designing dust exhaustion systems for the aluminum industry, emphasizing the lack of reference data for specific equipment and process emissions. Methodologies for calculating air flow and pressure drop in exhaust systems are reviewed, with a focus on pneumatic conveying of particulates. The work proposes an improved methodological approach based on hydrodynamic models and presents real-world case studies, such as coke loading/unloading systems and alumina feeding in potlines. Conclusions include recommendations for optimizing system performance.