Volume 19, Issue 10 (October 2019)                   Modares Mechanical Engineering 2019, 19(10): 2471-2480 | Back to browse issues page

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Sahami M, Jamaati J. 3D Modeling of the Effects of Arrangement and Geometry of the Rod Matrix on the Capturing of Micro-Particles in High Gradient Magnetic Filters. Modares Mechanical Engineering 2019; 19 (10) :2471-2480
URL: http://mme.modares.ac.ir/article-15-17819-en.html
3D Modeling of the Effects of Arrangement and Geometry of the Rod Matrix on the Capturing of Micro-Particles in High Gradient Magnetic Filters
M. Sahami1 , J. Jamaati * 2
1- Mechanical Engineering Department, Engineering Faculty, Razi University, Kermanshah, Iran
2- Mechanical Engineering Department, Engineering Faculty, Razi University, Kermanshah, Iran , j.jamaati@razi.ac.ir
Abstract:   (2564 Views)
In this paper, a 3D model is proposed for investigating the performance of HGMS filters. This filter consists of a matrix of iron rods arranged in a channel with a square cross-section and subjected to an external magnetic field. The flowing fluid is the amine solution which contains the FeS micro-particles. In the presented model, first, the capture performances of magnetic particles for 2D geometries are calculated numerically at various conditions using COMSOL Multiphysics software through finite element method. Using these results, a database of capture performance has been established for different speeds of the flow, diameters of the particle and arrangement of the rods. By use of the processing of this database, the capture performance of semi-sized particles for a 3D problem is calculated through the integration of captured particles along the length of the rods. Finally, the amount of total particles captured on the rod matrix is obtained for a group of particles with various diameters assuming Gaussian distribution. The results indicate that in HGMS filters, the particle capturing is directly related to the particle diameter but inversely depends on Reynolds number and the vertical distance between the rods. Also, at the same conditions, the filtration of the triangular arrangement of rods is greater than the rectangular arrangement. However, the performance difference of these two arrangements decreases with increase in the flow velocity or increase in the distance between the rods or decrease in the diameter of the particles. These results can be used to optimize the filtration of particles in the magnetic filters at different conditions.
 
Keywords: Capture Efficiency, Magnetic Filter, High Gradient Magnetic Separation, Gaussian Distribution of Particles, Arrangement of Magnetic Matrix
Full-Text [PDF 1067 kb]   (2270 Downloads)    
Article Type: Qualitative Research | Subject: Computational Fluid Dynamic (CFD)
Received: 2018/03/17 | Accepted: 2019/02/13 | Published: 2019/10/22
References
1. Yamamoto J, Mori T, Akiyama Y, Okada H, Hirota N, Matsuura H, et al. Removal of Iron scale from boiler feed-water in thermal power plant by magnetic separation: Large-scale experiment. IEEE Transactions on Applied Superconductivity. 2019;29(5). [Link] [DOI:10.1109/TASC.2019.2901958]
2. Zheng X, Wang Y, Lu D. Study on capture radius and efficiency of fine weakly magnetic minerals in high gradient magnetic field. Minerals Engineering. 2015;74:79-85. [Link] [DOI:10.1016/j.mineng.2015.02.001]
3. Barnes DR, inventor. Magnetic trap for removal of iron from amines. United States Patent US6077332A. 2000 June 20. [Link]
4. Watson JHP. Magnetic filtration. Journal of Applied Physics. 1973;44(9):4209-4213. [Link] [DOI:10.1063/1.1662920]
5. Zheng X, Wang Y, Lu D. Investigation of the particle capture of elliptic cross-sectional matrix for high gradient magnetic separation. Powder Technology. 2016;297:303-310. [Link] [DOI:10.1016/j.powtec.2016.04.032]
6. Zheng X, Wang Y, Lu D, Li X, Li S, Chu H. Comparative study on the performance of circular and elliptic cross-section matrices in axial high gradient magnetic separation: Role of the applied magnetic induction. Minerals Engineering. 2017;110:12-19. [Link] [DOI:10.1016/j.mineng.2017.04.003]
7. Hayashi S, Mishima F, Akiyama Y, Nishijima S. Development of high gradient magnetic separation system for removing the metallic wear debris to be present in highly viscous fluid. Physica C: Superconductivity and its Applications. 2010;470(20):1822-1826. [Link] [DOI:10.1016/j.physc.2010.05.215]
8. Kim YG, Song JB, Yang DG, Lee JS, Park YJ, Kang DH, et al. Effects of filter shapes on the capture efficiency of a superconducting high-gradient magnetic separation system. Superconductor Science and Technology. 2013;26(8):085002. [Link] [DOI:10.1088/0953-2048/26/8/085002]
9. Eisenträger A, Vella D, Griffiths IM. Particle Capture efficiency in a multi-wire model for high gradient magnetic separation. Applied Physics Letters. 2014;105(3):033508. [Link] [DOI:10.1063/1.4890965]
10. Zheng X, Wang Y, Lu D. A realistic description of influence of the magnetic field strength on high gradient magnetic separation. Minerals Engineering. 2015;79:94-101. [Link] [DOI:10.1016/j.mineng.2015.06.004]
11. Xu F, Chen A. Calculation of Evaluation Variables for High Gradient Magnetic Separation with an Idealized Capture Model. arXiv preprint arXiv:1611.09481 (Physics - Fluid Dynamics). 2016 Nov:1-11. [Link]
12. Li L, Greenberg PS, Jr Street KW, Chen DR. Study of a magnetic filter system for the characterization of particle magnetic property. Aerosol Science and Technology. 2011;45(3):327-335. [Link] [DOI:10.1080/02786826.2010.534514]
13. Khashan SA, Alazzam A, Furlani EP. Computational analysis of enhanced magnetic bioseparation in microfluidic systems with flow-invasive magnetic elements. Scientific Reports. 2014;4. [Link] [DOI:10.1038/srep05299]
14. Chen L, Qian Z, Wen S, Huang S. High-gradient magnetic separation of ultrafine particles with rod matrix. Mineral Processing and Extractive Metallurgy Review. 2013;34(5):340-347. [Link] [DOI:10.1080/08827508.2012.695304]
15. Zeng W, Dahe X. The latest application of SLon vertical ring and pulsating High-gradient magnetic separator. Minerals Engineering. 2003;16(6):563-565. [Link] [DOI:10.1016/S0892-6875(03)00102-X]
16. Huang S, Park H, Park YK, Jo YM. Dynamic Trajectory and capture of fine dust magnetic mesh filters based on a particle velocity model. Aerosol Science and Technology. 2015;49(8):633-642. [Link] [DOI:10.1080/02786826.2015.1056337]
17. Nakamura Y. Physical properties of alkali metal-ammonia (amine) solutions studied by magnetic resonance methods. Journal de Physique IV Colloque. 1991;01(C5):61-70. [Link] [DOI:10.1051/jp4:1991507]
18. Hunt CP, Moskowitz BM, Banerjee SK. Magnetic properties of rocks and minerals. In: Ahrens TJ, editor. Rock physics & phase relations: A handbook of physical constants. Washington: American Geophysical :union:; 1995. pp.189-204. [Link] [DOI:10.1029/RF003p0189]
19. Zaichik LI, Pershukov VA, Kozelev MV, Vinberg AA. Modeling of dynamics, heat transfer, and combustion in two-phase turbulent flows: 1. Isothermal flows. Experimental Thermal and Fluid Science. 1997;15(4):291-310. [Link] [DOI:10.1016/S0894-1777(97)00009-5]
20. Askari Lasaki S, Shojaefard, M. Mathematical modeling of potential flow over a rotating cylinder. International Journal of Engineering Transactions A: Basics. 2011;24(1):55-63. [Link]
21. Bejan A. Convection heat transfer. 4th Edition. Hoboken: John Wiley & sons; 2013. [Link] [DOI:10.1002/9781118671627]
22. Huang S, Zhang X, Tafu M, Toshima T, Jo Y. Study on subway particle capture by ferromagnetic mesh filter in nonuniform magnetic field. Separation and Purification Technology. 2015;156 Pt 2:642-654. [Link] [DOI:10.1016/j.seppur.2015.10.060]
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