Multiphysics Modeling Simulation and Optimization of Aerodynamic Drum Magnetic Separator

Aerodynamic Drum Magnetic Separator (ADMS) uses an adjustable air flow to enhance the separation of magnetic particles from gangue. In order to explore the matching relationship between the magnetic field, the flow field, and the gravity field, as well as the capture and separation behavior of parti...

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Bibliographic Details
Published in:Minerals (Basel) 2021-07, Vol.11 (7), p.680
Main Authors: Liu, Jianjun, Xue, Zixing, Dong, Zhenhai, Yang, Xiaofeng, Fu, Yafeng, Man, Xiaofei, Lu, Dongfang
Format: Article
Language:English
Subjects:
Air flow
Capture effect
Finite element analysis
Finite element method
Gangue
Gravitational fields
Gravity
Gravity field
Magnetic field
magnetic field optimization
Magnetic fields
Magnetic poles
Magnetic separation
magnetic separator
Magnetic separators
modeling and simulation
multiphysics
Optimization
Partial differential equations
particle tracking
Permeability
Permutations
Physics
Probability theory
Reynolds number
Separation
Separators
Simulation
Velocity
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Summary:Aerodynamic Drum Magnetic Separator (ADMS) uses an adjustable air flow to enhance the separation of magnetic particles from gangue. In order to explore the matching relationship between the magnetic field, the flow field, and the gravity field, as well as the capture and separation behavior of particles under the action of multi-physics, a related simulation model is established using the finite element software COMSOL Multiphysics and the accuracy of the simulation results is verified by measurement, formula calculation, and magnetic separation experiment. The trajectories and capture probabilities of particles in different magnetic fields and flow fields are calculated, as well as the critical airflow velocity corresponding to a specific capture probability. In addition, the magnetic field characteristics and particle capture effect of N-S alternate arrangement and N-N homopolar arrangement are compared by optimizing the permutation of magnetic poles. This model may provide a reference for the accurate control of magnetic separation enhanced by a coupling force field.
ISSN:2075-163X
2075-163X
DOI:10.3390/min11070680