離散要素法によるチューブミル内ライナー形状の評価

• 三尾 浩

  同志社大学　工学部物質化学工学科

• 加納 純也

  東北大学　多元物質科学研究所

• 齋藤 文良

  東北大学　多元物質科学研究所

• 伊藤 光弘

  太平洋セメント株式会社技術部

書誌事項

タイトル別名

• Estimation of Liner Design in a Tube Mill by Discrete Element Method

抄録

Tube mills having four kinds of liner designs (MODEL I, II, III and IV) were modelled to evaluate the effect of liner design on the impact energy by the Discrete Element Method (DEM). The ball charge motion was simulated, and the impact energy of balls was calculated. The charge motions of MODEL I (duolift), III (step wave liner) and IV (lifter liner) were cataracting and cascading, and motion in MODEL II (steps) seemed to be cascading under the condition of N/N_C = 0.72 (N_C: critical rotational speed). MODEL I, III and IV gave larger impact energy than that of MODEL O (without liner). MODEL III had the largest E_n (normal component of impact energy) in all mills; and it was 32% superior to MODEL O. The distribution of E_n shifts to high-energy range when the mill had liner. The effective area for the grinding in MODEL I, III and IV were around toe of ball charge due to cataracting motion. Therefore, the grinding performance will be improved by the liner, especially design of MODEL III is the best according to this analysis.

収録刊行物

• 資源と素材

  資源と素材 123 (3), 97-102, 2007

  一般社団法人 資源・素材学会

キーワード

• 離散要素法
• 衝突エネルギー
• チューブミル
• コンピュータシミュレーション
• ライナー

詳細情報

• CRID: 1390282680250352768
• NII論文ID: 10018900119
• NII書誌ID: AA12188381
• DOI: 10.2473/journalofmmij.123.97
• ISSN: 18840450
• ISSN: 18816118
• NDL書誌ID: 8771240
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8771240
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可