Optimization of the motor speed of ultrafine vibration mill

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (2) : 52-57.

GAO Yuan1,JIA Minping1,YANG Xiaolan2,LIU Jifeng2

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Abstract

Material agglomeration is easy to appear during the ultrafine grinding process by ordinary vibration mill with constant motor speed. Because of that,the difficulty to refine the particles is increased and the development of ultra-fine powder is limited. A new excited mode with the motor speed changing over time was put forward,and an ultrafine grinding excitation method with high vibration strength was explored through Adams simulation and prototype experiments. The motion response characteristics of the body,the changing rule of vibration strength and the optimal range of motor speed were obtained through simulation analysis of vibration mill at different speed. Grinding tests on the new vibration mill were conducted with diamond powder as the grinding object,whose average particle size was 10 microns. The results show that the reasonable change of motor speed is conducive to the further refinement of particles.

Key words

vibration mill / ultrafine grinding / motor speed / high vibration strength

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GAO Yuan1,JIA Minping1,YANG Xiaolan2,LIU Jifeng2. Optimization of the motor speed of ultrafine vibration mill[J]. Journal of Vibration and Shock, 2017, 36(2): 52-57

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