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Modeling and simulation of transportation system of screw conveyors by the Discrete Element Method

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5 Author(s)
Guoming Hu ; Dept. of Mech. Eng., Wuhan Univ., Wuhan, China ; Jinxin Chen ; Bin Jian ; Hui Wan
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The transportation of bulk materials is of importance in many industrial applications, ranging from minerals, agriculture, pharmaceuticals, chemicals, pigments, plastics, cement, sand, salt and food processing. Screw conveyors are widely used for transportation of particulates at controlled and steady rates. In this paper, we use the Discrete Element Method (DEM) to analyze the performance of a screw conveyor including visualization of the motion of particles, angular and axial velocity of particles, overall torque and total force, kinetic energy and total energy dissipation. The DEM model was established by applying periodic boundary conditions to a single pitch of the screw and the particles are modeled as spheres. DEM simulation shows that the nature of the particle flow in a horizontal screw conveyor is surprisingly complex and is reasonably sensitive to the operating conditions. The dependence of the performance of a screw conveyor on the operating conditions is analyzed.

Published in:

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Date of Conference:

26-28 June 2010