Abstract
Owing to its high collection efficiency, the double-row jet collector is an important application in industrial operations. Presently, few studies on its collection efficiency and impact from its front and rear nozzle angles are available. In this paper, the computational fluid dynamics–discrete element method is employed to numerically study the jet parameters of a typical double-row jet collector from three aspects: flow characteristics, particle movement and collection efficiency. Defining α as the front nozzle and β as the rear nozzle, five different combinations of jet angles were first selected and an optimal configuration of the front nozzle at 30°and the rear nozzle at 55° was last obtained, the simulation results were confirmed via the performance experiment. The influence of the change in the front and rear jet angles on the flow field of the collection is shown, and the results indicate that of the angle α and β, α plays a dominant role, while β has relatively little influence on the whole collecting process, which guides for the optimal design.
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