Separation of small nonferrous particles using a two successive steps eddy-current separator with permanent magnets

Lungu, Mihai

doi:10.1016/j.minpro.2009.07.012

Cited by 21 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was noted that the use of separators on permanent magnets generates a series of problems related to the need to justify the structure of the magnetic system and the choice of materials for permanent magnets. Article [11] reports a method for separating small metallic colored particles from two-component metallic colored blends using a new type of a dynamic drum vortex separator with permanent magnets. It was investigated that in order to improve the efficiency of extracting metal particles the separation process occurs in two stages: first, particles with high electrical conductivity are separated at the top of the drum, and then, in the bottom part of the magnetic drum, particles with low electric conductivity.…”

Section: Computer Simulation Of the Magnetic System Of A Disk Separatormentioning

confidence: 99%

“…The main advantages and practical limitations of the magnetic systems for separators with a high gradient magnetic field (HGMS) and systems with an open gradient magnetic field (OGMS) were described in paper [12]. It should be noted that studies [10][11][12] fail to address the issues related to theoretical research into the power magnetic fields of separators; the permanent magnets are arranged mainly based on empirical experience. All this allows us to assert that it is expedient to undertake a theoretical study aimed at investigating patterns in the power magnetic field distribution in the working zones of separators in order to reasonably select a magnetic system configuration.…”

Section: Computer Simulation Of the Magnetic System Of A Disk Separatormentioning

confidence: 99%

See 1 more Smart Citation

Determining the force function distribution in the working zone of a disk magnetic separator

Shvedchykova¹,

Melkonova²,

Melkonov³

2019

EEJET

View full text Add to dashboard Cite

A variety of forms, structural assemblies and magnetization directions of permanent magnets makes it possible to construct new magnetic systems for separation devices with the required topology of magnetic field in working gaps and acquisition of new functional properties [9]. Studies in this field are of theoretical and practical interest. 2. Literature review and problem statement Numerous publications report studies into magnetic systems of separators on permanent magnets. Features in using magnetic separators on permanent magnets were considered in paper [10]. It was shown that separators are distinguished by simplicity of the structure, low power consumption, they

show abstract

Section: Computer Simulation Of the Magnetic System Of A Disk Separatormentioning

confidence: 99%

Section: Computer Simulation Of the Magnetic System Of A Disk Separatormentioning

confidence: 99%

Determining the force function distribution in the working zone of a disk magnetic separator

Shvedchykova¹,

Melkonova²,

Melkonov³

2019

EEJET

View full text Add to dashboard Cite

show abstract

“…So, in [2], the prospects of using magnetic systems based on neodymium magnets for the purification of bulk substances from weakly magnetic impurities at food industry enterprises are justified. In [8], a method is presented for separating small metallic non-ferrous particles from two-component metallic non-ferrous mixtures using a new type of permanent magnet separator. It is also promising to use Nd-Fe-B alloy magnets in magnetic systems for high-gradient separation [9,10], in particular in biomedicine, for targeted delivery and localization of magnetic nanoparticles in a given area of a biological object [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, as the analysis of publications [1][2][3][4][5][6][7][8][9][10][11][12][13][14] shows, a reasonable choice of material of permanent magnets and layout solutions of magnetic systems is an important stage in the design of new types of magnetic separators. At the same time, the question of the effect of the material of the magnets on the distribution of the magnetic field in the working zones of the magnetically separating devices requires attention.…”

Section: Introductionmentioning

confidence: 99%

Research of Magnetic Field Distribution in the Working Area of Disk Separator, Taking Into Account an Influence of Materials of Permanent Magnets

Shvedchykova

Melkonova

Romanchenko

2020

EUREKA: Physics and Engineering

View full text Add to dashboard Cite

Based on the results of a numerical-field analysis of the distribution of the magnetic force field in the working area of the disk magnetic separator, designed to clean bulk substances from ferromagnetic inclusions, the influence of the magnetic material of the poles of the magnetic system on the field distribution is determined. A consistent study of two magnetic systems assembled on the basis of magnetic materials of different classes is carried out. The finite element method implemented in the COMSOL Multiphysics software environment is used to calculate the distribution of magnetic induction in a disk magnetic separator with rare-earth and ferrite magnets. Due to the complexity of the spatial geometry of the force field in the working area of the disk magnetic separator, a three-dimensional model of the magnetic system is developed. A comparative analysis of the distribution of the magnetic force field in the working area of the disk separator with a highly coercive magnetic system and with a magnetic system based on ferrite blocks is carried out. As a result of the analysis, it is found that the indicators of the intensity and heterogeneity of the magnetic field for a highly coercive magnetic system significantly exceed the corresponding parameters of a ferrite magnetic system. It is proved that when choosing magnets for the magnetic system of a disk separator, preference should be given to highly coercive alloys, the magnetic properties of which significantly exceed the magnetic properties of ferrite magnets. To reduce the cost of the magnetic system of the disk separator, the use of a combined magnetic system assembled from magnetic materials of different classes is proposed. Studies of combined magnetic systems with various mass fractions of magnetic materials are done. The ratio of the mass fractions of magnets of various properties in the poles of the magnetic system is determined, at which sufficiently high magnetic characteristics are provided in the working area. It is shown that the presence of a ferrite fraction in the magnetic poles not only reduces the cost of the magnetic system of the separator, but also reduces the mass of the system. The tasks of further research are justified.

show abstract

“…Separator with permanent magnets single line labyrinth type: 1 -particles of the separated product; 2 -system of permanent magnets.The parameters of the cocoa mass are considered according to[12].The main parameters directly affecting the efficiency of the magnetic separation process are: magnetic force; speed of motion of the material; concentration of ferromagnetic inclusions in the treated mixture.The magneticforce canbe expressed by therelationship (1) andis guided by thepermanent magnets used to make the magneticfilter [5,6,7]. …”

mentioning

confidence: 99%

Increasing the efficiency of permanent magnet separators by maintenance of certain functional state of the object of separation

Dimova

Aprahamian

Marinova

et al. 2014

2014 18th International Symposium on Electrical Apparatus and Technologies (SIELA)

View full text Add to dashboard Cite

According to the specific features of the object of separation the separating unit is selected to ensure maximum extraction of ferromagnetic impurities. For proper choice of construction it is necessary the separation process to be examined in details. The paper examines the results of an experimental study of lattice type separator with labyrinth type placement of the permanent magnets. It is designed for separation of ferromagnetic inclusions in organic products (e.g. raw cocoa). The conducted experiment is planned and an approach to determine some parameters of the product is proposed, which significantly affect the process of separation. For this purpose, it is designed and implemented an algorithm for determining the functional state of the mixture.

show abstract

Separation of small nonferrous particles using a two successive steps eddy-current separator with permanent magnets

Cited by 21 publications

References 5 publications

Determining the force function distribution in the working zone of a disk magnetic separator

Determining the force function distribution in the working zone of a disk magnetic separator

Research of Magnetic Field Distribution in the Working Area of Disk Separator, Taking Into Account an Influence of Materials of Permanent Magnets

Increasing the efficiency of permanent magnet separators by maintenance of certain functional state of the object of separation

Contact Info

Product

Resources

About