Impact of draft plate on the separation performance of gas-solid cyclone separator

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-02-15 DOI:10.1016/j.powtec.2025.120806

Yida Zhang, Shiliang Yang, Jianhang Hu, Hua Wang

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引用次数: 0

Abstract

Cyclone separators are extensively utilized in the mining, metallurgy, and energy industries due to their high efficiency in gas-solid separation. This study simulates gas-solid two-phase flow within a cyclone separator using the Eulerian-Lagrangian approach, with the mathematical model validated through experimental data. The influence of draft plates and inclination angle on flow patterns, particle dynamics, and separation efficiency is thoroughly investigated. The findings reveal that the incorporation of guide plates reduces energy losses and mitigates the detrimental effects of short-circuit flow on separator performance. Specifically, the pressure drop decreases as the draft plate angle increases, while a smaller draft plate angle significantly reduces short-circuit flow and enhances system stability. Moreover, draft plates effectively decrease the frequency of particle-wall collisions. At an optimal draft plate angle of 90°, the pressure drop is reduced by 71 %, and the short-circuit flow length decreases by 27 % compared to a traditional cyclone separator, indicating improved performance. Overall, this study demonstrates that the use of draft plates markedly enhances gas-solid phase interactions in cyclone separators.

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.