Abstract
To address the disposal of lightweight materials (such as plastic, cloth and paper) in waste stocks, this study delves into the analysis of two distinct wind separation chamber structures and their respective impacts on the separation efficiency of lightweight materials. Utilizing Fluent simulation software, the structural optimization of the air chamber is conducted, scrutinizing the effects of the auxiliary tuyre angle in primary wind separation and the fan arrangement mode in secondary wind separation on the overall separation effectiveness. Various models are established to compare flow field track diagrams and velocity cloud diagrams within the wind separation room, allowing for a comprehensive analysis of how device structure influences the precision of wind separation. The simulation results reveal that, in primary wind separation, setting the auxiliary fan angle between 35° and 40° yields a more reasonable indoor flow field and velocity distribution, leading to effective separation of lightweight materials. For secondary air selection, the optimal fan arrangement mode is determined to be non-uniform, ensuring uniform wind bodies in the field with minimal cyclonic disturbances.
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