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金属矿山 ›› 2019, Vol. 48 ›› Issue (11): 161-168.

• 机电与自动化 • 上一篇    下一篇

浓密机内部流场数值模拟研究进展

王学涛1,崔宝玉1,魏德洲1,宋振国2,3,孟令国1   

  1. 1. 东北大学资源与土木工程学院,辽宁 沈阳 110819;2. 矿物加工科学与技术国家重点实验室,北京 100160;3. 北京矿冶科技集团有限公司,北京 100160
  • 出版日期:2019-11-15 发布日期:2020-01-03
  • 基金资助:

    基金项目:国家自然科学基金项目(编号:51504054,51874075);矿物加工科学与技术国家重点实验室开放基金项目(编号:BGRIMM-KJSKL-2019-03);中央高校基本科研业务费专项基金项目(编号:N170106004,N170104016),辽宁省自然科学基金项目(编号:20170520335)。

Research Progress on the Numerical Simulations of Internal Flow Field of Thickener

Wang Xuetao1,Cui Baoyu1,Wei Dezhou1,Song Zhenguo2,3,Meng Lingguo1   

  1. 1. School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China;2. State Key Laboratory of Science and Technology of Mineral Processing,Beijing 100160,China; 3. BGRIMM Technology Group, Beijing 100160,China
  • Online:2019-11-15 Published:2020-01-03

摘要: 为进一步提高浓密机的工作效率、深入理解及发展絮凝浓密理论,探讨了浓密机内部复杂流场特性的研究方法,并从多相流模型、湍流模型、模拟尺度方面详述了数值试验方法在浓密机内部流场特性研究中的应用现状,并阐述了数值模拟方法在提高絮凝浓密工艺指标的指导作用,指出絮凝反应的数学描述、絮团形成及其结构演变过程仿真模型的建立是当下及今后研究的重点,基于流场环境下的浓密机多场耦合是其内部流场数值模拟研究的发展趋势。

关键词: 浓密机, 流场特性, 数值模拟, 絮凝, 固液分离

Abstract: In order to improve the working efficiency of thickener further, understand and develop the theory of flocculation thickening deeply, the research approaches about the complex characteristics of the internal flow field of thickener were discussed. The application status of the numerical experimental methods in simulating the internal flow field of thickener is reviewed in detail from the aspects of multiphase flow model, turbulent model and simulation scale. The guiding role of numerical simulation in improving the technical indexes of flocculation thickening process is elaborated. It is pointed out that the mathematical description of flocculation reaction, the formation of flocs and simulation modeling of structure evolution are the research focuses present and future. Multi-field coupling of thickener based on field environment is the development direction of internal flow field of the numerical simulation.

Key words: Thickener, Flow field characteristics, Numerical simulation, Flocculation, Solid-liquid separation