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金属矿山 ›› 2012, Vol. 41 ›› Issue (06): 120-123.

• 机电与自动化 • 上一篇    下一篇

浓缩机内煤泥水沉降流场和浓度分布的数值模拟

贾凯,王永田,龚豪   

  1. 中国矿业大学化工学院
  • 出版日期:2012-06-15 发布日期:2012-06-29
  • 基金资助:

    * 国家自然科学基金委员会创新研究群体科学基金项目(编号:50921002),国家重点基础研究发展计划(973计划)项目(编号:2012CB214905),中央高校基本科研业务费专项资金项目(编号:JX111744)。

Numerical Simulation of Concentration Distribution and Coal Slurry Settlement Flow Field in Thickener

Jia Kai,Wang Yongtian,Gong Hao   

  1. School of Chemical Engineering and Technology,China University of Mining and Technology
  • Online:2012-06-15 Published:2012-06-29

摘要: 运用Pro/E软件对煤泥水沉降用浓缩机建立模型,然后根据流体动力学原理,选用计算流体力学软件FLUENT中的RNG k-ε湍流模型和多相流MIXTURE模型对浓缩机内煤泥水的沉降流场和浓度分布进行数值模拟,最后根据模拟结果拟合出煤泥沉降过程中浓度分布的数学公式,为浓缩机的结构优化提供了一条新途径。

关键词: 浓缩机, 煤泥水, 沉降流场, 浓度分布, 数值模拟

Abstract: Pro/E software was used for geometric modeling of coal slurry settlement thickener and according to the principle of computational fluid dynamics,used RNG k-ε turbulent model and the mixture multiphase model to simulate the internal flow field in thickener and the coal slurry settlement distribution. The conclusion from the simulation was used to fit the mathematical model formulas of coal slurry settlement distribution,providing an easy way for an optimal structure design of thickener from theory.

Key words: Thickener, Coal slurry, Settlement flow field, Concentration distribution, Numerical simulation