Research on Modeling and Simulation of the Trafficability of Vertical Screw Conveyors Intermediate Support Based on EDEM

Abstract:

Vertical screw conveyor is a kind of main equipments of bulk handing and delivery, and the intermediate support structure is one of the key parts of this equipment. It is necessary to make a research on it for improving the design and optimization to improve bulk delivery efficiency. Degree of freedom theory, analysis software of EDEM with discrete element and setting periodic boundary model are applied in this paper to simulate the vertical screw conveyors grain (rice) delivery process under different intermediate support structure. The results show that traditional intermediate support structure is three times statically indeterminate structure, while the degrees of freedom of new intermediate support is 1; The vertical screw transmission capacity of new type of vertical screw axis machine which uses intermediate spokes structure is slightly decreased, and the driving power required to drive screw axis increases slightly at the same time. The materials axial transport speed is not affected, but the requirement is greatly reduced for the manufacture and installation accuracy.

• Periodical: Applied Mechanics and Materials (Volume 456)
• Pages: 303-309
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.456.303
• Online since: October 2013
• Authors: Lei Mei*, Ji Quan Hu, Yong Zhi Li, Tian Pei Chen
• Keywords: DEM Simulation, Intermediate Support Structure, Trafficability, Vertical Screw

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