BULK MATERIAL TRANSPORT IN A TUBULAR VIBRATORY ELEVATOR
V. S. Sizikov
Institute for Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, Russia
Keywords: dual-mass vibratory elevator, dynamic clearance, vibratory conveying, granular media, rheological model, normal reaction force
Abstract
We investigate the process of conveying bulk materials within the channel of a dual-mass tubular vibratory elevator, operating in an inclined (elevating) configuration. Using construction sand as the test medium, we analyze the influence of the oscillation frequency and amplitude of the conveying elements, the channel wall inclination angle, and the bulk fill density on both the maximum achievable lift height and the material transport velocity. Our findings indicate that the operating frequency should be carefully detuned from the resonant frequency of the system to ensure stable performance. The most effective control parameters are identified as the oscillation amplitude of the conveying elements and the inclination angle of the elevator relative to the horizontal. Finally, we propose recommendations for refining the process model and suggest directions for future research.
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