SU1766521A1 - Cylindrical electromagnetic iron-separator - Google Patents

Description

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(21) 4764152/03 (22) 08.08.89 (46) 10/07/92. Bul №37 (75) E.V. Orlov and B.C. Eagles

(56) USSR Copyright Certificate №766647, cl. B 03 C 1/10, 1977.

USSR Author's Certificate No. 1693042, cl. B 03 C 1/10, 1989. (54) CYLINDRICAL ELECTROMAGNETIC IRON DIVIDER

(57) The invention relates to the recovery of metal from slags and industrial waste using magnets. The goal is to increase the efficiency of the metal healing process by intensifying the mixing of the starting material. The device includes an inclined non-magnetic drum (B) 2 installed with the possibility of rotation. Separate electromagnets (EM) 3 are built into the housing B 2, forming a magnetic system. To the working surface of each EM 3 at one end attached segments of the chains (C) 5 of a ferromagnetic material. The device also includes a feeder 14 and receivers 12 and 15 for the non-magnetic fraction and the metal, respectively. The feeder 14 serves the source material inside B 2. Due to the rotation B 2, mixing and grinding of the source material takes place. Drawn to the EM 3 segments C 5 contribute to the grinding of slag and mixing of the material. Metal inclusions are attracted to the surface of EM 3 and C 5. In the upper part of B 2, EM 3 is turned off. At that, C 5 sags and the metal falls into tray 13 and further into receiver 15. The nonmagnetic fraction slips into receiver 12. 1 sludge.

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The invention relates to the field of ferrous metallurgy, in particular to installations for the extraction of metals from slags and industrial wastes, and can be used in the coal, mining and other industries.

The purpose of the invention is to increase the efficiency of the metal extraction process by intensifying the mixing of the starting material. On schematically shows the proposed iron separator.

The byte eel contains inclined on the rollers 1, a rotating non-magnetic drum 2, into the body of which are separate electromagnets 3 isolated from each other, having on the inner surface of the drum 2 working surfaces 4, around which there are areas of the inner surface of the drum 2 that are free from magnetic fields, due to which grinding of slag metal is improved.

On the working surfaces of 4 separate electromagnetic 3 chains, one end of a ferromagnetic metal 5 is attached, which does not cause complete saturation of the magnetic circuits of electromagnets 3.

Inside the drum 3, near its lower end, there are radial struts 6, on which a conical shell 7 is mounted, directed by a large base towards the output end of drum 2.

At the junction of the radial struts on the central axis, there is a shaft 8 connected through a coupling 9 with a shaft of the Yuto-distributor box 11.

Electromagnetic 3 each have two leads (beginning and end), which through radial struts 6, which are tubes, and axial bores of shafts 8-10 of coupling 9, are blended in the distribution box 11.

In addition, the separator comprises a receiver 12 for a non-magnetic fraction, a tray 13 for unloading the magnetic metal into the receiver 14, a feeder 15 of the source material.

The device works as follows.

The source material is introduced into the cavity of an inclined drum 2 by feeding the source material 15. As a result of rotation on the rollers 1 of the drum 2, the source material mixes and grinds, moves to the location area of the individual electromagnets 3, to their working surfaces 4, on which electromagnets 3 chains 5 are attracted and form in the working areas of electromagnets 3 large ferromagnetic lumps, which significantly increase

the effectiveness of mixing, grinding the source material, destroy large non-magnetic pieces of slag into pieces,

These large ferromagnetic lumps of chains 5 are well attracted by ferromagnetic objects, the supply of electromagnets 3 can be a direct current, if it is necessary to shake the lifted magnetic material - or a pulsed current.

When the upper position is reached, the electromagnets 3 are disconnected and released from the magnetic objects 4 and the chains 5 that are drawn to the working surfaces and will now take a higher position.

The magnetic objects will fall into the tray 13 for unloading the magnetic metal and will be collected in the receiver 14,

As it advances in the zone of action of the electromagnets 3, the magnetic part is sequentially extracted, and the non-magnetic part continues to move to the lower end of the drum 2.

Go to the radial racks 6, which impede the movement of non-magnetic material due to the fact that the material can be lifted by the racks 6 up, fall down, so the racks 6 have an annular cross section and a conical shell 7 is mounted on them, with a large base towards the output end drum 2. Shell 7 takes upon itself the blows of a material that is relaxing from racks 6 and dumps it to the lowest point of drum 2. The non-magnetic part, the radial struts 6 have passed and

slightly advancing along the drum 2, it is removed through its lower end, into the receiver 12 of a non-magnetic material.

Claims (1)

Cylindrical electromagnetic separator comprising rotatably inclined non-magnetic drum with a magnetic system in the form of individual electromagnets embedded in the drum housing, and with the aim of increasing the efficiency of the metal extraction process by intensifying the mixing of the starting material, the iron separator is equipped with chain segments made of ferromagnetic material and attached at one end to the working surface of each electromagnet.