液中転動ボールミルの粉砕結果と DEM シミュレーションにより算出した衝突エネルギー分布との関係

Translated title of the contribution: Correlation between grinding results in a tumbling ball mill with liquid media and the distribution of ball impact energy calculated by DEM simulation

Akira Kondo, Shingo Ishihara, Kizuku Kushimoto, Takahiro Kozawa, Junya Kano, Makio Naito

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Ball motions in wet ball milling with a tumbling ball mill were simulated using the DEM. Effects of rotation speed and ball size were investigated. Results of DEM simulation were compared with the observed ball motions and the results of real grinding tests in wet ball milling. In DEM simulation, calculated ball motions were adjusted to observed motions using the suitable friction coefficient. Then, energy distributions of ball impact energy and their cumulative values were calculated. As for changing of rotation speed, results of grinding tests of wet ball milling were well related to the impact energy. However, the grinding efficiency of ball impact energy was smaller as the ball size was larger. The energy efficiency of 10 mm balls was estimated 21% of that of 3 mm balls.

Translated title of the contributionCorrelation between grinding results in a tumbling ball mill with liquid media and the distribution of ball impact energy calculated by DEM simulation
Original languageJapanese
Pages (from-to)608-614
Number of pages7
JournalJournal of the Society of Powder Technology, Japan
Volume56
Issue number11
DOIs
Publication statusPublished - 2019

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