Design and fabrication of optimized magnetic roller for permanent roll magnetic separator (PRMS): Finite element method magnetics (FEMM) approach
Autor: | Bharath Kumar Shanmugam, Shahid Azam Rabbani, Harsha Vardhan, Harish Hanumanthappa, Sharnappa Joladarashi, M. R. Rahman, G.T. Mohanraj |
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Rok vydání: | 2021 |
Předmět: |
Fabrication
Materials science General Chemical Engineering Lab scale Mechanical engineering Fe content Magnetic separator 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Finite element method 0104 chemical sciences Magnetic field Power (physics) Paramagnetism Mechanics of Materials 0210 nano-technology |
Zdroj: | Advanced Powder Technology. 32:546-564 |
ISSN: | 0921-8831 |
Popis: | In the present work, an attempt has been made to develop a PRMS in a cost effective and environmental friendly way through FEMM analysis of magnetic roller (active part of PRMS). The FEMM analysis indicates that, the optimized magnetic roller having magnet-to-steel disk thickness ratio of 5 mm: 2.5 mm was proved to be gainful in beneficiating paramagnetic minerals due to the best magnetic field value from the roller surface that is, 0.89 to 2.59 T. Prediction analysis was performed on FEMM data using artificial neural network (ANN) modelling technique. Further, the design calculations of lab scale PRMS in terms of power requirements and belt tensions were addressed. The fabricated PRMS was tested on paramagnetic mineral (hematite ore) assayed 51.24% of Fe, 10.20% of SiO2, and 2.98% of Al2O3 for different roller speeds and the belt thickness. The result showed that, at 0.5 mm belt thickness with 180 rpm roller speed the fabricated lab scale PRMS works well in terms of improvement in the Fe content up to 59.5% at the concentrate along with the Fe recovery of 71.41%. The obtained results suggest that, the FEMM analysis is more suitable to optimize the effective magnetic roller for the PRMS. |
Databáze: | OpenAIRE |
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