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IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology Pub Date : 2025-03-15 DOI:10.1016/j.apt.2025.104852

Yanbin Yu , Lianxin Fang , Bo Zhou , Wenting Cui , Shi Yin , Kezhi Song

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引用次数: 0

摘要

工业生产中的粉尘污染严重威胁工人的职业健康和企业安全。为缓解工作场所的粉尘污染，提出了基于人工龙卷风的圆柱涡流除尘系统。为阐明该通风系统的流场特性和粉尘控制机理，基于欧拉-拉格朗日法建立了气流-粉尘两相耦合模型，模拟了不同射流角度θ和吹吸流量比k对气流-粉尘耦合扩散的影响。结果表明，射流相互作用对粉尘控制效果有显著影响。增大 θ 和 k 可以将射流相互作用从夹带转变为冲击。适当调整θ和k可显著减少高浓度尘簇的污染面积。当 20°≤θ≤30° 和 0.90≤k≤1.15 时，空间内产生的圆柱形漩涡表现出明显的稳定性和有效的粉尘控制能力。目前，高浓度粉尘污染范围的比例 Vd′ 小于 10%，除尘效率 ε 超过 85%。在总风量不变的情况下，圆柱涡流除尘系统的除尘效率提高了 167.69%。这项研究为在工业中实施圆柱涡流除尘系统提供了理论基础和设计指南。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Ventilation parameters’ impact on artificial tornado-based cylindrical vortex dust removal system performance

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Ventilation parameters’ impact on artificial tornado-based cylindrical vortex dust removal system performance

Dust pollution from industrial production seriously threatens workers’ occupational health and enterprise safety. The cylindrical vortex dust removal system based on artificial tornadoes was proposed to mitigate dust pollution in workspaces. To elucidate the flow field characteristics and dust control mechanisms of this ventilation system, the airflow-dust two-phase coupling model was established based on the Euler-Lagrange method, and the influence of different jet angle θ and blowing-suction flow ratio k on the airflow-dust coupling diffusion was simulated. The findings indicated that jet interactions significantly influence dust control efficacy. Increasing θ and k can transform jet interactions from entrainment to impact. Appropriate adjustment of θ and k can significantly reduce the area polluted by high-concentration dust clusters. When 20°≤θ ≤ 30° and 0.90 ≤ k ≤ 1.15, the cylindrical vortices generated within the space demonstrated pronounced stability and effective dust control capabilities. Currently, the proportion V_d′ of the high-concentration dust pollution range is less than 10 %, and the dust removal efficiency ε exceeds 85 %. Compared to traditional single-vent ventilation, which depended solely on the exhaust air volume for dust capture and control, the dust removal efficiency in the cylindrical vortex dust removal system increased by 167.69 % when the total air volume remained constant. This research furnished the theoretical foundation and design guidelines for implementing cylindrical vortex dust removal systems in industries.

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来源期刊

Advanced Powder Technology 工程技术-工程：化工

CiteScore

9.50

自引率

7.70%

发文量

424

审稿时长

55 days

期刊介绍： The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)