CN2451236Y

CN2451236Y - Multi-pole extruding radiation strong-magnetic rolling belt type magnetic separator

Info

Publication number: CN2451236Y
Application number: CN 00245213
Authority: CN
Inventors: 莫天云
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-01
Filing date: 2000-12-01
Publication date: 2001-10-03
Anticipated expiration: 2010-12-01

Abstract

The utility model relates to a multi-pole extruding radiation strong-magnetic rolling belt type magnetic separator, which is a magnet roller with taking rare-earth Nd-Fe-B as a permanent magnetism source and being in series connection via axial repelling and squeeze, and the utility model is provided with a radical leading-out magnetic field method. A conveying belt is an ultra-thin high strength conveying belt and is a sealed integration, and the conveying belt can tightly abut on the magnet roller and is tightly stretched by a tension roll which is also fixedly arranged on a machine frame.

Description

The strong magnetic roll strip of a kind of multipole extruding radiation magnetic separator

The utility model relates to a kind of permanent magnetism roll strip magnetic separator, particularly a kind of with rare-earth Nd-Fe-B permanent magnetism as magnetic source, and each magnetic patch on the magnetic roller squeezes series connection axially to scold, radially the strong magnetic roll strip of a kind of multipole extruding radiation magnetic separator arranged of derived type structure mode.

In order to use permanent-magnet material to separate weak magnetic mineral, people are always the target of the magnetic field intensity that improves magnetic separator as pursuit and effort, but the raising of magnetic field intensity will be paid a high price, as select high performance permanent-magnet material for use or increase the consumption of permanent magnet, do the cost that will increase equipment widely like this.People adopt the high-performance Ne-Fe-B permanent magnet at present, can do magnetic field intensity very highly by the squash type magnetic circuit, basically can reach the level of the saturated magnetic conductivity of magnetic conductive soft iron, but on traditional cylinder magnetic separator, people adopt Nd-Fe-Bo permanent magnet material and extruding magnetic circuit equally, and the magnetic field intensity of its outer workspace will have been had a greatly reduced quality.Being easy to accomplish more than the 20000GS as the magnetic field intensity on bigger cylinder magnetic separator extruding magnetic pole, also is difficult but will go up 10000GS in the magnetic field intensity of cylindrical shell appearance.This is because in the cylinder magnetic separator, even it is saturated that the magnetic conductivity of magnetic conductive soft iron pole-face is bordering on, but could arrive the magnetic separation workspace by certain utmost point and the air gap between inner tube wall and certain cylinder wall thickness, a large amount of like this magnetic energy have to act on air gap and the barrel, and fail to affact on the working region, promptly a large amount of leakage fields is being arranged at inoperative zone internal memory, magnetic energy can't make full use of, this point is inevitable in cylinder magnetic separator, and diameter of cylinder is big more, corresponding leakage field is also big more, and the magnetic energy utilization rate is low more, and the magnetic field intensity of drum surface is also just more little.

The purpose of this utility model is that to disclose a kind of leakage field few, magnetic energy utilization rate height, high efficiency, and the very simple strong magnetic roller belt-type of a kind of multipole extruding radiation magnetic separator of structure.

The purpose of this utility model is to realize like this, the strong magnetic roll strip of this new multipolar extruding radiation magnetic separator comprises frame, is installed in the feed hopper of frame top, place the collection ore bucket, motor of frame below and be magnetic source with the rare-earth Nd-Fe-B permanent magnet, and axially to scold crowded series connection, radially deriving magnetic approach is the strong magnetic roller of multipole extruding radiation of structure, different is: conveyer belt is ultrathin reinforced belt, and conveyer belt is a closed integral body, tightly paste on the left magnetic roller, and by the idler roller tensioning that is installed in equally on the frame.

Because the magnetic roller of this machine is the open type magnetic circuit, less energy consumption when therefore working whenever selects one ton of ore deposit power consumption less than 0.1 degree, and power demand is little, and original loom power demand is at more than 10～20 kilowatts, and this machine only needs about 0.5 kilowatt; And magnetic field intensity is very high on the working face of this machine, so the rate of recovery is high, and last Rare Earth Mine tail is between 0.5～1 degree; And the output of this machine is big, per hour optional about 6 tons; Again because this machine structure is very simple, so installation, debugging, maintenance management etc. are all very simple, only need general personnel to be competent at; And if adopted the stepless time adjustment motor, then applicable different ore dressing requirement would be as mineral, the number of degrees, the rate of recovery, precision etc.; If add that gathering sill concentrates on the strong magnetic ore separation limit with mineral aggregate to be selected, then can sort rare earth, monazite, nonmetallic mineral, as high purity quartz sand etc.

For clearly demonstrating technical scheme of the present invention, preferred forms of the present utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a kind of embodiment structural representation of the utility model;

Fig. 2 is the right view of Fig. 1;

A kind of magnetic patch distribution map that Fig. 3 rolls for magnetic of the present utility model;

Fig. 4 is the work schematic diagram of multi-stage magnetic separation.

Magnetic table 5 of the present utility model is made up of axially to scold crowded series system the magnet ring 12 of 2 ring shaped axial magnetizings, magnet ring 12 can be by many individual independently fan-shaped magnets, glue by the assembly in advance of special tooling device, it between two magnet rings 12 an annular magnetic conductive soft iron 13, by it form the utmost point to, two relative magnet rings 12 pressures of homopolarity are adhered on two faces of an annular magnetic conductive soft iron 13, on 13 outer edge, just radially extruded very high magnetic field like this, many groups of such magnet rings 12 and magnetic conductive soft iron 13 are pressed and are sticked together, just formed the magnetic roller 5 of the strong magnetic of multipole extruding radiation, two adjacent on this magnetic roller 5 magnetic conductive soft iron 13 outer ring surfaces are different polarity with inner ring surface, have formed a N, the multipole open type magnetic circuit that S is extremely staggered.Axle 16 modes with stationary fit are through in the magnetic roller 5 interior annular distances; Also can on the axle 16 that permeability magnetic material is made, radiation magnetic loop 14 be installed,, make radiation magnetic loop 14 face the interior ring of the magnetic conductive soft iron 13 of same polarity by the location annulus 17 that non-magnet_conductible material 6 is made; Withstand the magnetic line of force of inside radiation, make on its outer surface that affacts ring better, (seeing the right-hand part of accompanying drawing one), just formed rational magnetic circuit at interior ring like this, reduce leakage field and helped making full use of of magnet, increased the magnetic field intensity on magnetic conductive soft iron 13 outer ring surfaces, improved the field intensity of working region, can put an axle sleeve that non-magnet material is made 15 in the outside of axle 16, also be open circuit in making on the ring; Rolling 5 outside at magnetic directly puts one and rolls 5 tightly interdependent slim conveyer belts 7 with magnetic and just can reduce leakage field, on zone face, obtain very high magnetic field intensity, this conveyer belt 7 is that very thin non-magnetic rustproof steel band or reinforced belt made, and its thickness generally is no more than 0.8mm, so solved the excessive problem of the leakage field of cylinder magnetic separator basically, really become the magnetic separator of strong magnetic working region.

In order to improve the output of this magnetic separator, we can increase the rotating speed that machine magnetic rolls, the weak magnetic mineral that has drunk up can be got rid of again again but rotating speed is too high, thereby the available increase magnetic way of rolling diameter improves the linear velocity of conveyer belt, thereby the increase treating capacity, the area that can also increase the working region when increase magnetic rolls diameter is realized.

In the specific embodiment of the present utility model shown in Figure 1, feed hopper 2 is installed in the upper end of frame 1, the feeder below is provided with the discharging governor motion 10 that can regulate discharging speed, feed guide plate 3 is discharged to the ore dressing material on the conveyer belt 7, conveyer belt 7 has been slim reinforced belt, and conveyer belt 7 rolls 5 and idler roller 6 tensionings and transmission mutually by being installed in magnetic on the frame 1 respectively; Thereby motor 4 can drive magnetic roller 5 and drive idler roller 6, drives magnetic roller 5 thereby also can drive idler roller 6 earlier; Non magnetic mine tailing tangentially is thrown out of under effect of inertia, magnetic mineral then with conveyer belt 7 arrive come off automatically outside the workspaces or in magnetic field more weak zone got rid of; Therefore under the situation that left magnetic roller 5 has been established, use stepless time adjustment motor 4,, then can adapt to different ore dressing requirements by regulating rotating speed.In order to regulate the rate of recovery and to reclaim precision, above Ji Kuang half 8, also be provided with the one group of adjustable plate 9 that can adjust its mutual angle arbitrarily, the artificial ore deposit with selecting is taken in respectively in the different slots that collects in the ore bucket 8, so that packing respectively.

If will sort rare earth, monazite, nonmetallic mineral such as high purity quartz sand etc., then can on discharging guide plate 3, establish gathering sill 11, the outlet positive alignment magnetic of gathering sill 11 rolls magnetic conductive soft iron 13 places on 5, makes the ore dressing material all be in the strongest working region of magnetic field intensity.

Claims

1, the strong magnetic roll strip of a kind of multipole extruding radiation magnetic separator, comprise frame (1), be installed in the feed hopper (2) of frame (1) top, place the collection ore bucket (8) of frame (1) below, motor (4) and be magnetic source with the rare-earth Nd-Fe-B permanent magnet, and axially to scold crowded series connection, radially deriving magnetic approach is the strong magnetic roller of multipole extruding radiation (5) of structure, it is characterized in that: magnetic roller (5) is made up of axially to scold crowded series system the magnet ring (12) of a plurality of ring shaped axial magnetizings, press between two magnet rings (12) to adhere on two faces of an annular magnetic conductive soft iron (13), axle (16) is through in the interior annular distance of magnetic roller (5) in the mode of stationary fit; Conveyer belt (7) is ultrathin reinforced belt, and conveyer belt (7) be one closed whole, tightly paste on the left magnetic roller (5), and by idler roller (6) tensioning that is installed in equally on the frame (1).

2, the strong magnetic roll strip of multipole extruding radiation according to claim 1 magnetic separator, it is characterized in that: described axle (16) is made by permeability magnetic material, axle is equipped with radiation magnetic loop (14) on (16) and (17) are encircled in the garden, location of being made by non-magnet_conductible material that is interval between the radiation magnetic loop (4), and radiation magnetic loop (14) faces the interior ring place of the magnetic conductive soft iron (13) of same polarity.

3, the strong magnetic roll strip of multipole extruding radiation according to claim 1 and 2 magnetic separator, it is characterized in that: described feed hopper (2) is installed in the upper end of frame (1), the discharging guide plate (3) of feed hopper (2) below is discharged to mineral aggregate to be selected on the conveyer belt (7), and conveyer belt (7) is by the magnetic roller (5) and idler roller (6) tensioning and the transmission mutually that are installed in respectively on the frame; Motor (4) drives magnetic roller (5) thereby drives idler roller (6); Or motor (4) drives idler roller (6) thereby drive magnetic roller (5); Collection ore bucket (8) is arranged on frame (1) below, also is provided with the one group of adjustable plate (9) that can adjust its mutual angle arbitrarily on it.

4, the strong magnetic roll strip of multipole extruding radiation according to claim 3 magnetic separator, it is characterized in that: described motor (4) is the stepless time adjustment motor.