Magnetic separator

 

(57) Abstract:

The invention relates to magnetic separation of fine mineral mixtures and fine particles in the form of a dry powder. The technical result is to increase the quality of the concentrate through the efficient destruction of conglomerates, removing additional quantities of magnetic material, and the separator in a continuous mode. The separator includes a separation chamber and a magnetic system in the form made with the possibility of rotation around the axis of the cage, on which is fixed a vertically magnetized radially spaced magnets, the separation chamber located vertically between two non-magnetic disks on which radially at an angle of 90ofixed at 4 magnets with the same magnetic polarity and magnetic moments of one of the disk facing toward the magnetic moments of the second disk, disks mounted on a horizontal axis so that one magnetic disk deployed relative to another disk on the angle at 45oC, with the possibility of changing the distance between the drive and frequency of their rotation. 1 Il.

The invention relates to the field of magnetic separation of fine mineral is a mini-solution includes two Autonomous electromagnet located on both sides of the separation zone and include alternately with the aim of creating a "boiling volume, providing high selectivity of separation of the separated products [1].

The drawback to this unit is the expenditure of energy to create a magnetic field of electromagnets.

Closest to the proposed combination of essential features is the magnetic separator analyzer, including the separation chamber and mounted underneath the magnetic system in the form made with the possibility of rotation around the vertical axis of the casing, on which is fixed a vertically magnetized radially spaced primary and secondary magnets [2].

The drawback to this unit is the opportunity to work in periodic mode and the impossibility of creating a "boiling" of the volume, providing highly selective separation of the separated products.

The technical result of the proposed magnetic separator is the creation of a zone of separation "boiling" of the volume, the caller's effective destruction of conglomerates stuck due to the magnetostatic interaction of the CE is superconcentrate, the operation of the separator in a continuous mode and use instead of the permanent magnets electromagnets.

This technical result is achieved in that in the magnetic separator, containing the separation chamber and a magnetic system in the form made with the possibility of rotation around the axis of the cage, on which is fixed a vertically magnetized radially spaced magnets, what's new is that it has a separation chamber located vertically between two non-magnetic disks on which radially at an angle of 90ofixed at 4 magnets with the same magnetic polarity and magnetic moments of one of the disk facing toward the magnetic moments of the second disk, disks mounted on a horizontal axis so that the magnets of one disk deployed relative to another disk on the angle at 45owith the possibility of changing the distance between the drive and frequency of their rotation.

The drawing shows a schematic view of the separator.

The separator consists of the separation chamber 1 made of non-magnetic stainless steel, with holes for download of the separated product 2, the output of the magnetic fractions 3 and non-magnetic 4. On both STI and separation chamber, which angle 90oradially placed permanent magnets in the form of prisms of carbite boron "a" and "b". The disks attached to the axis 5, provided with a pulley 6 that is connected to an electric motor with a variable number of revolutions, so that the drive magnets a and B are rotated axis at an angle of 45oand have magnetic moments that are directed towards each other.

The separator operates as follows. The separated product in the form of fine powder is fed into the separation chamber through the opening 2 and under the action of gravity moves down the wall 7 in the area of the main division 8, where the magnetic particles are "captured" moving up the magnet, such as 9, are attracted to the side wall of the separation chamber and move up to the upper part of the separation chamber 10. By removal of the magnet vertical component of the magnetic force decreases and the magnetic mass begins to crumble down, gets into the zone of action of the magnet 11 is moved to the opposite side wall of the separation chamber. This soft magnetic particles with low values of the coercive force paramagnetically and hard magnetic particles with high values of coercive force of razvorachivaet and magnetic separation, magnetic and non-magnetic particles. Under the action of the magnet 11 and the magnetic particles again "captured" and moved to the top of the separation chamber 10. In each cycle of fall - rise particles gradually move from the bottom surface 10 to the axis of rotation, into the channel 12, is moved by the magnets on the channel and removed through the opening 3. Non-magnetic products are displayed through the opening 4. Changing the distance between the disks and the separation chamber, and the frequency of their rotation, you can adjust the quality of the separated product due to changes in the magnitude of the magnetic force and frequency of the reciprocating movement of particles in horizontal and vertical directions in the area of separation.

The inventive magnetic separator allows the separation process of "boiling" of the volume, with a minimum expenditure of energy and high selectivity of separation.

Sources of information

1. Patent N 2105613 class. B 03 C 1/24, 1/26.

2. USSR author's certificate N 1651966, A1 class B 03 C 1/60 (prototype).

Magnetic separator containing the separation chamber and a magnetic system in the form made with the possibility of rotation around the axis of the cage, on which are fixed vertically naman is authorized vertically between two non-magnetic disks, which radially at an angle of 90ofixed at 4 magnets with the same magnetic polarity and magnetic moments of one disk facing toward the magnetic moments of the second disk, disks mounted on a horizontal axis so that the magnets of one disk deployed relative to another disk on the angle at 45owith the possibility of changing the distance between the drive and frequency of their rotation.

 

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