Analysis of granules behavior in continuous drum mixer by DEM

Rikio Soda, Akira Sato, Junya Kano, Eiki Kasai, Fumio Saito, Masaki Hara, Takazo Kawaguchi

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

A numerical simulation model was developed to analyze the behavior of iron ore granules in a continuous drum mixer by Discrete Element Method (DEM). The effects of the gradient angle of the drum mixer on the behavior of granules were investigated using the simulation. The granulation experiment of iron ore fine was also performed to observe the occupation ratio and retention time. The occupation ratio and retention time obtained by both the simulation and experiment decrease with an increase in the gradient angle. The effect of the length of the drum mixer on the behavior of granules was investigated using the DEM simulation. The retention time increases with an increase in the length of the drum mixer. If the occupation distributions in the direction of the rotational axis is based on the exit of the drum mixer, it will be the same regardless of the length of the drum mixer. This simulation model proposed will be useful to understand granules behavior and to design of granulators.

Original languageEnglish
Pages (from-to)645-649
Number of pages5
JournalIsij International
Volume49
Issue number5
DOIs
Publication statusPublished - 2009

Keywords

  • Continuous drum mixer
  • Discrete element method
  • Granulation
  • Iron ore

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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