SU956014A1 - Electromagnetic separator - Google Patents

Description

(54J ELECTROMAGNETIC SEPARATOR

FIELD: mineral processing.

A known electromagnetic separator, vk.yyuchayuschy cylinder, an electromagnetic system installed outside the cylinder, guides, located in the cylinder, supplying and unloading devices 1.

The disadvantage of this separator is the low quality of the magnetic product.

The closest to the invention in its technical essence and the effect achieved is an electromagnetic separator, including a cylindrical bath, an electromagnetic system, ring-shaped guides located outside the bath, mounted on the inner surface of the bath, loading and unloading devices 2.

The disadvantage of this separator is the low performance of the magnetic product, the loss of magnetic particles with tails and, consequently, the low efficiency of the separation process.

The aim of the invention is to increase the effective AND separation process.

The goal is achieved by the fact that the separator is provided with additional guides, which can be in the form of a dihedral angle and are installed along the baths, the ring-shaped guides are made of magnetic material, and the discharge device is made in the form of a bias coil with a ring core.

1 shows the proposed separator, side view, in FIG. 2 node I in FIG. 1, plan view.

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The separator includes a cylindrical bath 1, an electromagnetic system 2, which creates a rotating magnetic field, annular guides 3, mounted on shock absorbers 4, guides 5, cutter b tails, bias coil 7, core 8, discharge funnels 9 and 10 for tails and concentrate, distributor 11 pi 25 tani.

Claims (2)

The core of the electromagnetic system, the ring-shaped guides and the core of the bias coil are made of magnetic material, such as 30 electrical steel. The remaining separator elements are made from non-magnetic materials. Electromagnet separator works as follows. The raw material in the form of pulp is fed into the separator from above onto the feed distributor 11 and under the action of gravity and magnetic forces generated by the rotating magnetic field moves along the inner surface of the bath 1 along a helical trajectory. The alternating magnetic field created by the electromagnetic system 2 excites oscillations of the guides 3 mounted on the shock absorbers 4. These oscillations are transmitted by direct contact and through the water to the particles of the material being separated and cause the release of non-magnetic particles and intergrowths from it. When passing through the guides 5, the material is transported to the SO1-UG of a weaker magnetic field, where it is additionally cleaned of non-magnetic particles and clusters, which are carried by water into the discharge funnel 9 for the tails. The magnetic material, in its downward movement, passes through the dehlimation zone between bath 1 and the 6 tailings shutoff. Here, dispersed non-magnetic particles are formed from it by an intense countercurrent of water coming from the bottom; At the bottom of the bath 1, the magnetized material enters the zone of action of a vertically directed pulsating magnetic field created by the bias coil 7 with the core 8, and under the influence of magnetic and gravitational forces unloads into the concentrate funnel 10 the coil 7 magnetize increases the zone length separation, eliminates the sticking and sticking of the magnetic parts in the lower part of the electromagnetic system 2 and ensures continuous intensive unloading of the magnetic product around the entire perimeter of the bath 1, which creates a high and separator performance. The bias coil 7 is powered by a pulsating current, for example, from a half-wave current-frequency rectifier. The use of an unloading device in the form of a bias coil in the separator, which is powered by a pulsating current and creates a vertically directed magnetic field in the lower part of the bath, eliminates the transport of dispersed magnetic particles into the tails and improves the separator's performance on the magnetic product. The use in the separator of annular guides 3 of magnetic material and additional guides 5, made in the form of a dihedral angle, improves the separation of magnetic and non-magnetic particles and increases the efficiency of separation. Claim 1. Electromagnetic separator, including a cylindrical bath, an electromagnetic system installed outside the bath, annular guides installed on the inner surface of the bath, power supply and discharge devices, characterized in that, in order to improve the separation process, the separator is provided with additional directions mounted on the forming bath, while the annular guides are made of magnetic material, and the discharge device is made in the form of coils and magnetic ring magnetisation. 2. A separator according to claim 1, characterized in that the additional guides are in the form of a dihedral angle. Sources of information taken into account during the examination 1. USSR author's certificate No. 180535, cl. In 03 C 1/24, 1963, 2, USSR Copyright Certificate for Application No. 2479947/03, cl. At 03 C 1/24, 1977 (prototype). 8odff w