UA47600A - Separator magnetic system - Google Patents

Abstract

Magnetic system of a separator has an insertion of soft magnetic material, at both sides of that magnets of same polarity near the surfaces of insertions are placed. The insertion has a trapezium shape, with the smaller side of the trapezium it is turned to the opposite to the working surface side, and at the larger base of the trapezium insertion there are slots in which additional magnets are installed. Magnets being close to the side surfaces of the insertion have larger sizes in comparison to the size of the insertion opposite to the working surface; those touch each other with the smaller sides of the trapezium insertions. Surfaces of the magnets of opposite polarity that are not in contact with the insertion are wrapped with an yoke made of soft magnetic material.

Description

Description of the invention

The invention relates to electrical engineering, in this case - to magnetic separators. Known magnetic 2 separators (article (|1| Asiaroiub Fesipisa in the journal 621.928.8; Zsapaipamisa, RI 102 NeivipKki, 1974 and 0rС621.318.2:538.2; book I2| "Superconducting machines and devices", publishing house "Mir", Moscow, 1977. , p. 618).

In the first system, magnets are placed between inserts made of magnetic steel and have the same polarity on the surface of the inserts. In the second system, magnets of variable polarity are placed in a circle and occupy part of this 70 circle. The indicated systems do not provide a high value of | induction in the working gap, where the separated product moves. It is known that the quality of separation is ensured by the level of induction and magnetic potential gradients in the working gap, the number of gradients per unit surface of the separator. The appearance of highly efficient magnets MagBev, KCo, makes it possible to design magnetic systems that provide a high level of induction in the working gap with the simplest geometric shape of magnets and minimal dimensions. At the same time, the high 79 coercive force and the rectilinear type of demagnetization characteristic determine the design feature of magnetic systems in comparison with systems that use cast magnets with a convex demagnetization curve of the YUNDKZ5T5BA type: the magnets have a small height (the direction along the axis of crystallization). The proposed invention considers a highly efficient and magnetic system for magnetic separators, made on the basis of magnets of the MagBev, KSo type.

The closest in terms of technical significance and the achieved result to this invention is the magnetic system, which is given in the magazine (Article 1 of Asiaroiuiesppisa 5sapaiipamis, RA 102 Neivipki, 1974 and ЮС621.928.8; 621.318.2:538.2). In this system, the magnets are placed between soft magnetic inserts and have the same polarity on the surface of the inserts. The disadvantage of this system should be considered a low level of induction on the working surface due to the presence of a scattering flux of inserts that do not come into contact with the magnets.

The essence of the invention is to improve the design of the magnetic system in order to increase the induction on the working surface of the system, resulting in an increase in the amount of ferromagnetic material separated from the product being separated.

This task is solved by the design of a magnetic system containing a magneto-soft insert on both sides of which magnets of the same polarity are placed, which is distinguished by the fact that the insert has a trapezoidal shape, with the smaller base of the trapezoid facing the side opposite to the working surface, on the larger base of the trapezoid "3 inserts are grooves in which auxiliary magnets are installed, and the magnets adjacent to the side surfaces of the inserts have a larger size than the insert in the opposite direction of the working surface and collide with each other, by ee, the smaller base of the trapezoidal insert, the surfaces of magnets of opposite polarity, which do not come into contact with the cha insert, switched by a yoke made of magnetic material. 3o Common features with the prototype are the presence of a magnetic insert, on both sides of which there are Z magnets of the same polarity.

A distinctive feature is: - the insert has a trapezoidal shape, the smaller base of the trapezoid is turned in the direction opposite to the working surface, the larger base of the trapezoidal insert has grooves in which auxiliary magnets are installed, and the magnets adjacent to the side surfaces of the insert are larger than the insert in the direction Z 50 opposite to the working surface, and are in contact with each other at the smaller base of the trapezoidal insert, the surfaces of magnets of opposite polarity, which do not come into contact with the insert, are switched by a yoke made of a magnetic material.

From" The essence of the invention is explained by the drawing (fig. 1, 2, 3), which shows this magnetic system of the separator.

The magnetic system of the separator consists of a magnet of a trapezoidal insert 1, magnets 2 of the same polarity on both sides of the insert, auxiliary magnets З, which are located in the grooves of the insert, magnets 2 have a larger size than the insert in the direction opposite to the working surface 4, and are in contact at the corners shk between themselves, the surfaces of magnets C of opposite polarity are switched by a yoke 5 made of a magnetic material. -I Magnets placed on both sides of the magnetic insert 1 create a useful flow b - in the direction of the working surface 4, where the separated product passes, and a scattering flow in the direction 7 in the direction b opposite to the working surface. Since the magnets in contact with the insert, therefore, the insert has the same av! 20 polarity, a larger size than the insert in the direction opposite to the working surface, come into contact with each other at angles, then this allows you to eliminate the scattering flow in the direction 7 (the same poles of the insert and magnets 2 are repelled), increase the flow towards the working surface 4, improve the quality of separation .

LITERATURE

1. Article in the Journal of Asian Studies, Zsapaiipamiap, Ri 102 Neivipki, 1974 and OS 621.928.8; 621.318.2:538.2; 29 2. The book "Superconducting machines!", "Mir" publishing house, Moscow, 1977, page 618.

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Claims (1)

The formula of the invention 6o Magnetic system of the separator, which has a magneto-soft insert, on both sides of which magnets of the same polarity are placed near the surface of the inserts, which is distinguished by the fact that the insert has a trapezoidal shape, the smaller base of the trapezoid faces the side opposite to the working surface, on the larger base of the trapezoidal insert there are grooves in which the auxiliary magnets stand, and the magnets adjacent to the side surfaces of the insert have a larger size than the insert in the direction opposite to the working surface and collide with each other at the smaller base of the trapezoidal insert, and the surfaces of the magnets of opposite polarity, which do not collide with the insert,