Abstract
The distribution of the magnetic field in the working zones of synthesized polygradient media is studied using a computational experiment. The distribution of the magnetic field is carried out by the numerical finite element method, realized with the help of the ELCUT program complex. It is substantiated that instead of studying the field distribution in the entire interpolar zone of arbitrary structure, it can limited by the field studies in a characteristic, periodically repeating region, taking into account its symmetry. For the studied structural compositions of polygradient media using the ELCUT program tools, two-dimensional geometric models of the working interpolar zones have been developed, taking into account generally accepted engineering assumptions. A comparative analysis of the distribution of induction and force function of the magnetic field in the working gaps of the synthesized structures of a lamellar polygradient medium of a given configuration is performed
Highlights
The method of magnetic separation [1], based on the use of differences in the magnetic susceptibility of particles of separated media, has been widely used
A significant influence on the distribution of the force of the magnetic field has a structure of the polygradient medium and its geometric dimensions
It is shown in the publication [3] that the arrangement of the rod elements in the matrix has a direct effect on the performance of high-gradient magnetic separation
Summary
The method of magnetic separation [1], based on the use of differences in the magnetic susceptibility of particles of separated media, has been widely used. The most difficult in this case is the process of extraction from nonmagnetic media of weakly magnetic and finely dispersed ferromagnetic inclusions of micron sizes To remove such inclusions, various polygradient magnetic separators of the matrix type are used. The effect of the cross section shape of the magnetic medium elements on the induction distribution and the gradient of the magnetic field of the polygradient separator are investigated in [2]. In this paper it is established that the most powerful and inhomogeneous magnetic field is provided by a polygradient medium based on triangular elements It is shown in the publication [3] that the arrangement of the rod elements in the matrix has a direct effect on the performance of high-gradient magnetic separation.
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