DEM-CFD によるプラスチック高精度分離を目的とした水流型比重選別機における粒子供給速度の影響評価

Ayano Nitta, Yuki Tsunazawa, Chiharu Tokoro

研究成果: Article査読

抄録

To recycle plastics in automobile shredder residue (ASR) is strongly required to reduce the amount of incineration. Using the slight difference in specific gravity of plastics made of different materials and additives, a separator using the difference of settling velocity in water is considered as a promising process. However, a high feed rate in the separator often decreases the recovery or grade of plastics. To contribute to the optimized design of the separator, this research evaluated the effect of a feed rate on the recovery or grade by the discrete element method coupled with computational fluid dynamics. Simulation results showed that as the feed rate increased, the contact number and the residence time of plastics increased, and the floating of plastics was hindered, resulting in a decrease in the recovery rate of the particles.

寄稿の翻訳タイトルEvaluation of effect of feed rate in a hydraulic gravity separator for high-quality plastic separation using DEM-CFD simulation
本文言語Japanese
ページ(範囲)100-110
ページ数11
ジャーナルJournal of the Society of Powder Technology, Japan
58
3
DOI
出版ステータスPublished - 2021 5

Keywords

  • Contacts
  • DEM-CFD
  • Feed rate
  • Gravity separation
  • Plastic recycling

ASJC Scopus subject areas

  • 触媒
  • プロセス化学およびプロセス工学
  • 流体および伝熱
  • ろ過および分離

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