Analysis of Movement of Spherical Particles in a Twin Roller System for Size Classification

• Mizutani Yoichi

  Department of Chemical engineering, Kyoto University, Japan

• Miyazaki Miho

  Department of Chemical engineering, Kyoto University, Japan

• Matsusaka Shuji

  Department of Chemical engineering, Kyoto University, Japan

• Masuda Hiroaki

  Department of Chemical engineering, Kyoto University, Japan

抄録

The movement of spherical particles in a twin roller system for size classification has been studied experimentally. The diameter of the particles used is 600µm. The classification system consists of a feeder, a twin roller unit and containers for collecting particles classified. The two rollers can be set at a desired angle from the horizon. The rollers can be rotated at an arbitrary angular velocity. All the particles that are fed from the feeder move along the gap between the two rollers. As the gap width increases downward, the particles fall down at a point where the gap width exceeds the particle diameter and are collected in containers arranged in a row. The motion of the particles moving along the gap is observed through a high-speed camera connected with a microscope. The image analysis shows that the particles roll down with small jumping, and the rotation of the particles depends on the operating condition of the twin roller system. The particle velocity along the gap varies according to the jumping. The flight time, normal velocity, and distance can be calculated from the velocity difference of the particles before and after the contact with the rollers.

収録刊行物

• アジア・太平洋化学工学会議発表論文要旨集

  アジア・太平洋化学工学会議発表論文要旨集 2004 (0), 37-37, 2004

  公益社団法人 化学工学会

キーワード

• size classification
• spherical particle
• twin roller system
• motion analysis

詳細情報

• CRID: 1390282680704845312
• NII論文ID: 130005052408
• DOI: 10.11491/apcche.2004.0.37.0
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可