Vibration-Assisted Handling of Dry Fine Powders

  • Dunst P
  • Bornmann P
  • Hemsel T
  • et al.
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Abstract

© 2018 by the authors. Since fine powders tend strongly to adhesion and agglomeration, their processing with conventional methods is difficult or impossible. Typically, in order to enable the handling of fine powders, chemicals are added to increase the flowability and reduce adhesion. This contribution shows that instead of additives also vibrations can be used to increase the flowability, to reduce adhesion and cohesion, and thus to enable or improve processes such as precision dosing, mixing, and transport of very fine powders. The methods for manipulating powder properties are described in detail and prototypes for experimental studies are presented. It is shown that the handling of fine powders can be improved by using low-frequency, high-frequency or a combination of low- and high-frequency vibration.

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Dunst, P., Bornmann, P., Hemsel, T., & Sextro, W. (2018). Vibration-Assisted Handling of Dry Fine Powders. Actuators, 7(2), 18. https://doi.org/10.3390/act7020018

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