Effects of ball-to-powder diameter ratio and powder particle shape on EDEM simulation in a planetary ball mill |
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| Authors: | Kyong-Chol Kim Tao Jiang Nam-Il Kim Cholu Kwon |
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| Institution: | 1. School of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, China;2. Faculty of Applied Chemical Engineering, Kim Chaek University of Technology, Pyongyang, Democratic People''s Republic of Korea;3. Liaoning Key Laboratory for Recycling Science of Metallurgical Resources, Shenyang, 110819, Liaoning, China;4. Liaoning Key Laboratory for Ecologically Comprehensive Utilization of Boron Resource and Materials, Shenyang, 110819, Liaoning, China;5. Institute of Building Materials, State Academy of Sciences, Pyongyang, Democratic People''s Republic of Korea;6. Institute of Mechanical Engineering, State Academy of Sciences, Pyongyang, Democratic People''s Republic of Korea |
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| Abstract: | The effects of the ball-to-powder diameter ratio (BPDR) and the shape of the powder particles on EDEM simulation results and time in the planetary ball mill was investigated. BPDR was varied from 1 to 40/3 by changing the powder particle diameter from 8 to 0.6 ?mm. The size and shape of the powder particles do not give a significant change in both the ball motion pattern and simulation results when BPDR is over 20/3. It can be assumed that the kinetic energy of the ball has nothing to do with the size and shape of the powder particle. The simulation time and data size increase exponentially as BPDR increases. The effect of change of the powder particle shape on the calculated data size is not significant, but the more complicated its shape, the longer the simulation time, which is linearly related to the number of spheres composing a particle. |
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| Keywords: | EDEM Planetary ball mill Ball-to-powder diameter ratio Particle shape Simulation time Motion pattern |
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