破壊モードに粒子径と衝突速度依存性を考慮した粒子粉砕現象のシミュレーション手法

  • 大浦 智也
    キヤノン株式会社 製品技術第二開発センター
  • 髙本 篤史
    キヤノン株式会社 製品技術第二開発センター
  • 小林 昌弘
    キヤノン株式会社 製品技術第二開発センター

書誌事項

タイトル別名
  • Simulation Method for Particle Comminution Process Considering Dependence on Particle Size and Impact Velocity in Breakage Modes

抄録

<p>Comminution process is widely used in industry to produce fine particles. We developed a mathematical model of comminution in order to analyze particle size reduction in an impact pulverizer. In our model, it is assumed that parameter a, which represents particle breakage modes, depends on both impact velocity and size of the particles. To obtain that dependence, particle-size distribution was measured experimentally before and after the breakage using a jet-mill. We implemented the mathematical model into the simulation based on computational fluid dynamics (CFD) and discrete phase model (DPM). It was confirmed that the simulation results coincide with the experimental ones in a rotary mill. Therefore, we conclude that it is important to consider the dependence of impact velocity as well as particle size on the breakage modes.</p>

収録刊行物

  • 粉体工学会誌

    粉体工学会誌 60 (4), 192-198, 2023-04-10

    一般社団法人 粉体工学会

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