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Karimi, P., Khodadadi Darban, A., Mansourpour, Z. (2019). A finite element model to simulate magnetic field distribution and laboratory studies in wet low-intensity magnetic separator. Journal of Mining and Environment, 10(3), 717-727. doi: 10.22044/jme.2019.8132.1680
P. Karimi; A. Khodadadi Darban; Z. Mansourpour. "A finite element model to simulate magnetic field distribution and laboratory studies in wet low-intensity magnetic separator". Journal of Mining and Environment, 10, 3, 2019, 717-727. doi: 10.22044/jme.2019.8132.1680
Karimi, P., Khodadadi Darban, A., Mansourpour, Z. (2019). 'A finite element model to simulate magnetic field distribution and laboratory studies in wet low-intensity magnetic separator', Journal of Mining and Environment, 10(3), pp. 717-727. doi: 10.22044/jme.2019.8132.1680
Karimi, P., Khodadadi Darban, A., Mansourpour, Z. A finite element model to simulate magnetic field distribution and laboratory studies in wet low-intensity magnetic separator. Journal of Mining and Environment, 2019; 10(3): 717-727. doi: 10.22044/jme.2019.8132.1680

A finite element model to simulate magnetic field distribution and laboratory studies in wet low-intensity magnetic separator

Article 13, Volume 10, Issue 3, Summer 2019, Page 717-727  XML PDF (10.81 MB)
Document Type: Original Research Paper
DOI: 10.22044/jme.2019.8132.1680
Authors
P. Karimi1; A. Khodadadi Darban email 1; Z. Mansourpour2
1Mining Engineering Department, Tarbiat Modares University, Tehran, Iran
2School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Abstract
Low-intensity magnetic separators are widely used in the research works and the industry. Advancement in the magnetic separation techniques has led to an expansion in the application of this method in different fields such as enrichment of magnetic mineral, wastewater treatment, and medicine transfer in the human body. In the mineral processing industry, the main application of wet magnetic separation is via drum separators. The design of this separator is based on drum rotation inside a tank media, where a permanent magnet placed inside the drum as an angle form produces a magnetic field. In the present work, the magnetic variables involved (magnetic flux density, intensity of magnetic field, and gradient of magnetic field intensity) were simulated in the drum wet low-intensity magnetic separator using the finite element method and a COMSOL Multiphysics simulator; these variables were further validated through the measured data. A comparison between the simulation and laboratory measurements (of the magnetic field) showed that the mean value of the simulation error in 94 points in 2 sections was equal to 9.6%. Furthermore, the maximum simulation error in the middle of the magnets, as the most important part of the magnetic field distribution in the process of magnetic separation, was in the 6th direction and equal to 7.8%. Therefore, the performed simulation can be applied as a first step to design and construct more advanced magnetics separators.
Keywords
Magnetic Separation; Wet Drum Magnetic Separator; Magnetic Field Simulation; Finite Element Method
Main Subjects
Mineral Processing
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