SU1750731A1 - Electrodynamic separator - Google Patents

Abstract

Use: separation of mixtures of non-ferrous metals with iron. Aim: to increase the separation efficiency due to the prevention of sticking of adhesions of iron with colored metal. on the tape while simultaneously increasing the force effect of the floor on the el.particles. Essence: under the conveyor belt there is an inductor running magician. floor directed across the tape. It is provided with a device for reciprocating movement under the belt. In this case, on the right side, the inductor moves under the upper branch of the belt. Then, vi is dropped back over the lower branch. Adaptation for this issue. in the form of an electric motor, on the shaft of which there are interchangeable gears connected with a crank mechanism, a copier and a double crank with two pairs drove at the end, with one side of the crank pivotally connected to the inductor, and the other slides on the copier. 1 hp f-ly, 3 ill. cl

Description

The invention relates to the enrichment of minerals, in particular to secondary non-ferrous metallurgy, and can most effectively be used to separate mixtures consisting of intergrowths of iron with non-ferrous metals, non-magnetic electrically conductive and non-electrically conductive particles.

An electrodynamic separator is known, which contains a hopper with a feeder, a transporting body made in the form of an inclined plane, an inductor system made in the form of a core fixed in relation to the transporting body with grooves in which alternating polarity magnets are laid at an angle of 45 ° to the longitudinal axis of the core and separation product receivers.

The disadvantage of this separator is the low efficiency of separation of a mixture of materials containing intergrowth of iron with non-ferrous metals and non-metals due to the adherence of the latter on the surface of the transporting organ.

Closest to the invention is an electrodynamic separator comprising a conveyor made in the form of a conveyor belt, placed above and below it by a traveling magnetic inductor

WITH

field receivers for non-conductive and receiver for conductive non-ferromagnetic materials.

The disadvantage of this separator is the low efficiency of the separation process, as well as the weak force effect of the magnetic field on non-ferrous metal particles. Of these drawbacks, it is explained by what the intergrowth of iron with non-ferrous metals adheres to the surface of the transporting organ. This makes it difficult for the material to move in the direction of the respective unloading zones and necessitates periodic stoppage of the process and removal of adhesions of iron with nonferrous metals sticking to the surface of the transporting organ in the separation zone. The second disadvantage is due to the low velocity of the separated particles relative to the traveling magnetic field. The speed of such movement is determined by the coefficient of friction of the separated particles on the surface of the transporting organ and its length.

The purpose of the invention is to increase the efficiency of the separation process by preventing sticking of iron with non-ferrous metals on the tape, as well as to increase the force effect of a traveling magnetic field on electrically conductive particles.

This goal is achieved by the fact that an electrodynamic separator containing a belt conveyor, an inductor running a magnetic field under its working branch, directed across the belt, a feeder and receivers of separation products are additionally equipped with a device to provide the reciprocating movement of the inductor across the conveyor belt, the inductor is fitted with the possibility of cyclic direct movement under the upper branch of the working tape with its subsequent lowering and reverse movement - above its lower branch; a device for providing reciprocating magnetic system is made in the form of an electric motor, on the shaft of which there are interchangeable gears connected with a crank mechanism, a copier and a double crank, with two pairs driving at the free end, while one side of the crank is hinged connected to the inductor, and the other is installed with the possibility of sliding on the copier.

Figure 1 shows the electrodynamic separator in the process; in fig.

2 - the same plan view; Fig, 3 is a view along arrow A in Fig. 1.

The proposed electrodynamic separator contains a hopper 1, a feeder 2,

a belt conveyor 3, a traveling magnetic field inductor 4, and a device for providing the reciprocating motion of the inductor.

Bunker 1 is made according to the type known.

The feeder 2 may be of any known construction, preferably vibratory. The width of the feeder tray 2 must be selected from the conditions for ensuring that the mixture of the materials being separated is fed only

half the width of the conveyor belt 3. Belt conveyor 3 is made by the type known. The width of the conveyor belt should be twice the width of the tray of the feeder 2. The inductor is a traveling magnetic

floor 4 is made by the type known. The inductor is installed with the possibility of cyclic direct movement under the upper branch of the conveyor belt 3 with its subsequent lowering and reverse

displacement - above the lower branch. In this case, the cyclic direct movement of the inductor is carried out across the conveyor belt. The width of the inductor running magnetic field 4 must be no more

the width of the conveyor belt of the transporting body 3 and at least three quarters of its width.

A device for reciprocating a magnetic system consists of an electric motor 5, interchangeable gears 6, a crank mechanism 7, a double crank device 8, a carrier 9 and a copier 10. A device for ensuring reciprocating movement of the magnetic system can be performed of similar known constructions. In addition, the proposed electrodynamic separator contains a dividing partition 11 and receivers 12,13 separation products for electrically conductive and non-conductive materials, respectively. The dividing wall 11 is of the known type and is mounted on

the working branch of the conveyor belt 3 with the possibility of its movement across the width of the conveyor belt. Receivers 12 and 13 for electrically conducting and non-conducting materials, respectively, are of the known type. Receivers 12 and 13 can also be configured as an antenna.

The proposed electrodynamic separator works as follows. A drive of a belt conveyor (not shown) and an electric motor 5 are included for providing reciprocating motion of the magnetic system. The initial mixture from the hopper 1 is fed to the belt conveyor 3 by the unloading feeder 3. Transporting the initial mixture 3 particles of different electrical conductivity and intergrowth of iron with non-ferrous metals is fed into the zone of action of the traveling magnetic field inductor When the electric motor 5 is working, the reciprocating movement of the magnetic field the system rotates via interchangeable gears 6 to the crank drive mechanism 7, which drives the double crank 8 to rotate. The rim end of the latter is mounted by the carrier 9, which is connected with the core by an inductor of a traveling magnetic field 4, and by the other side slides along a stopper (copier) 10. Simultaneous action of four carriers, the reciprocating movement of the magnetic field inductor across the conveyor belt is cycled direct movement under the upper branch of the working belt with its subsequent lowering and reverse movement under its lower branch. When the traveling magnetic field inductor is moved under the upper branch of the working tape, the magnetic field, affecting the particles of the separated mixture of materials, causes the movement of non-magnetic conductive particles and iron splices with nonferrous metals 14 to coincide with the direction of movement of the traveling magnetic field inductor. When the moving magnetic field inductor moves along the rest of its trajectory, the magnetic field on the particles is sharply weakened (at least four times) and their movement is carried out in the direction of movement of the conveyor belt 3. Sequential alternation of the directions of movement of non-magnetic conductive particles and intergrowths of iron with colored metals 14 causes them to move away from the direction of movement of the initial mixture of material and unload into the receiver 12. On non-conducting non-magnetic particles

15 the traveling magnetic field does not affect, the direction of their movement in the separation zone does not change, and the unloading occurs in the receiver 13 Separating

the baffle 12 serves to prevent the flow of non-magnetic electrically conductive particles and intergrowths of iron with non-ferrous metals from being mixed with the flow of non-magnetic non-conducting particles. The regulation of the speed of movement of the inductor of the traveling magnetic field is carried out by simply selecting the replaceable gears 6. An increase in the speed of movement of the inductor of the traveling magnetic field leads to

Claims (2)

an increase in the electrodynamic force Ge, which, in turn, leads to improved removal of non-magnetic electrically conductive particles from the separated material mixture, 1 Electrodynamic separator, including a belt conveyor, installed under its working branch, an inductor running a magnetic field directed across the belt, feeder and receivers of separation products, characterized in that the purpose of increasing the efficiency of the separation process is by preventing sticking of iron with nonferrous metals on the tape while increasing the force effect of the running electrically conductive particles, the separator is equipped with a device for providing the reciprocating movement of ind / ktor across the ribbon, conv Hyeres at In this case, the inductor is mounted with the possibility of cyclic direct movement under the upper branch of the working belt with its subsequent lowering and reverse movement over its lower branch. 2. A separator according to claim 1, characterized in that the device for providing the reciprocating motion of the inductor is made in the form of an electric motor, on the shaft of which there are interchangeable gears connected with a red-crank mechanism, a copier and a crank twin with two pairs drove at the end, with one side of the crank pivotally connected to the inductor, and a friend is installed with the possibility of sliding on the copier. ® # R 4 1CL 2 ° c0 otf & v Sh iflQD & t W d & ty Phage 2. Editor M.Tovtin Tehred M. Morgenthal Order 2641 Circulation Subscription VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab 4/5 Fig 3 Proofreader I. Muska