CN102211059B - High-field-intensity and high-gradient permanent magnetic separator - Google Patents

Abstract

This invention provides a high-field-strength, high-gradient permanent magnet magnetic separator, comprising a separation tank (1), a high-field-strength, high-gradient permanent magnet magnetic separator assembly (2), a positioning bearing seat (3), a scraper disc (4), a flusher (5), a transmission device (6), and a machine cover (7). The high-field-strength, high-gradient permanent magnet magnetic separator assembly (2) includes multiple permanent magnet magnetic separators (12) and a central shaft (13). Each permanent magnet magnetic separator (12) is fitted onto the central shaft and fixed. The permanent magnet magnetic separators (12) are parallel to each other and have gaps between them. The high-field-strength, high-gradient permanent magnet magnetic separator of this invention has a simple structure, low cost, large separation area, and can be made into a large size to meet large-scale industrial applications. It can also better separate various weakly magnetic or slightly magnetic components in the ore.

Description

A high field strength and high gradient permanent magnet magnetic separator

technical field

The invention relates to an ore dressing equipment, in particular to a high-field-strength and high-gradient permanent magnet magnetic separator for sorting magnetic minerals and/or weakly magnetic minerals.

Background technique

Due to the rapid development and transformation of science, technology, and social and economic activities, the mining and consumption of mineral resources have increased rapidly, and the proven reserves of various rich ores have become less and less. If poor ores are not mined and used to supplement the shortage of rich ores, It will seriously hinder the normal development of human society due to the lack of mineral resources. However, the mining of lean ore needs to rely on high-tech science and technology, and using traditional technology and equipment to mine lean ore will cause great waste of resources and environmental pollution. Therefore, the development and development of new mineral processing technology and mineral processing equipment is very urgent and challenging.

So far, the magnetic induction intensity of the existing permanent magnet magnetic separators is relatively fixed, it is difficult to separate minerals with similar magnetic properties or the separation degree of minerals with similar magnetic properties is poor, and the separation and separation requirements cannot be met; at the same time , the magnetic induction intensity of the permanent magnetic separator will gradually weaken with the increase of time, and eventually lose the magnetism; and, the permanent magnetic separator can only be used to separate strong magnetic minerals at present, for weak magnetic or paramagnetic minerals The sorting and separation effect is poor, and there are obvious application limitations. For example, the magnetic field strength of the magnetic separation separation surface of various permanent magnet magnetic separators cannot reach more than 0.8T (Tesla), and the magnetic field gradient is small. Only strong magnetic substances can be selected, but weak magnetic substances cannot be selected. Although the local magnetic induction intensity of some permanent magnets after a special combination can reach more than 1.2T, and the magnetic field gradient is relatively large, but due to the constraints of existing technologies, equipment and materials, this type of combination has not yet been found. Made into a combined magnetic piece with a diameter greater than φ500mm, and with a very small separation area, it can only be used for micro-separation tests in laboratories, and cannot be used for industrial production.

Chinese patents ZL97207074.5, ZL99233150.1, ZL99245569.3, ZL03215262.0, ZL03240242.2, ZL200320110040.9, etc. disclose a roller-type magnetic roller assembled with magnets and various components, and then use the magnetic roller as a magnetic Select components to form a variety of magnetic separators with different appearances. The separated body is the magnetic roller; this type of magnetic roller has a complex structure, high cost, and small separation area. At present, only small-diameter (diameter less than 150mm) magnetic separators There are no reports of large-diameter magnetic rollers. In addition, the existing permanent magnet magnetic separator has a complex structure, which is not conducive to installation and maintenance.

In order to save electric energy, increase the income/investment of mineral processing, improve the separation efficiency of magnetic separation equipment and efficiently select weak magnetic substances or substances with similar magnetic properties, and realize large-scale industrial application, the present invention provides a high-field-strength high Gradient permanent magnetic separator.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a simple structure, low cost, large separation area, which can be made into a large size to meet large-scale industrial applications, and can better separate various weak magnetic materials in the separation ore. A high-field-strength high-gradient permanent magnetic separator for weak or weakly magnetic components.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

Provided is a high-field-strength and high-gradient permanent-magnet magnetic separator, which includes a separating tank, a high-field-strength and high-gradient permanent-magnet magnetic separation disk group, a discharge device, a transmission device, a machine cover and the like.

The high-field-strength and high-gradient permanent magnet magnetic separation disk group is positioned in the separation groove, and the transmission device is connected with the high-field strength and high-gradient permanent magnet magnetic separation disk group to drive it to rotate; the high-field strength and high-gradient permanent magnet magnetic separation The disk group includes a plurality of permanent magnet magnetic separation disks and a central shaft, each permanent magnetic magnetic separation disk is sleeved on the central shaft and fixed, the permanent magnetic magnetic separation disks are parallel to each other, and there is a gap. Preferably, each gap is equal.

Preferably, the gap is greater than or equal to 30mm, more preferably the gap is greater than or equal to 40mm.

Further, each permanent magnet magnetic separation disc is composed of a central hub, an aluminum bracket, magnetic blocks of different specifications, soft iron sheets of different specifications, arc crowns and outer circumference wrapping sheets; according to arc crowns, soft iron sheets, magnetic blocks, soft The sequence of iron sheet, magnetic block, ... soft iron sheet, aluminum support is to string them together and fix them to form a fan-shaped magnetic assembly. The polarity of the magnetic blocks on the contact surfaces on both sides of each soft iron sheet is the same, and the fan-shaped magnetic The assembly is fixed on the central hub, and multiple fan-shaped magnetic assemblies are positioned by the outer circumference of the wrapping sheet to form a permanent magnet magnetic separation disk.

Furthermore, each contact surface can be bonded and compacted with metal glue; the fixing method is screw connection. Both sides of the permanent magnet magnetic separation disk are magnetic separation surfaces. On the magnetic separation surface, the magnetic induction intensity of the soft iron sheet area is the highest, and the highest can reach more than 1.2T. The permanent magnetic magnetic selection disc group is an assembly composed of different materials. Among them, the central hub can be made of magnetic materials or non-magnetic materials; the aluminum tray is made of aluminum materials, and can also be made of other non-magnetic materials; the soft The iron sheet is made of electrical pure iron or cobalt steel; the arc crown is made of non-magnetic material; the outer circumference wrapping piece is made of non-magnetic material.

Further, the separation tank is composed of the feed inlet, the separation area, the tailings outlet and the separation tank support. The feed inlet, the separation area and the tailings outlet are all fixed on the separation tank support. The high field strength and high gradient permanent magnet The disk selection group is positioned on the selection slot support. The feed inlet, sorting area, and tailings outlet are all made of non-magnetic materials, and the support of the sorting tank can be made of magnetic materials or non-magnetic materials. The high-field-strength and high-gradient permanent-magnet magnetic separation disc group can be fixed by a positioning bearing seat, which is a standard part and can be purchased from the market.

The unloading device is at least one of a fixed scraper pan, a rotating scraper pan or a flusher. The scraping disk can be made into two forms: fixed scraping disk and rotating scraping disk; one side of the fixed scraping disk is processed into a rectangular tooth shape, the size of the rectangular tooth and the gap between the high field strength and high gradient permanent magnet magnetic separation disk Equal or slightly smaller, the moment tooth extends into the gap of the high field strength and high gradient permanent magnet magnetic separation disk, and the two sides of the moment tooth are equipped with scrapers, and the magnetic separation surface of the scraper and the high field strength and high gradient permanent magnet magnetic separation disk Closely connected, but relatively movable, there are baffles on the other side and two sides, which are used to block the selected fine materials, and one of the sides is equipped with a fine material outlet; the rotating scraping disc is composed of a rotating scraper group Shaft and rotating scraper group rotating bearing seat. The rotating scraper group is vertically installed on a rotating shaft. It is fixed on the support of the separation slot, and when rotating, the knife-edge surface of the rotating scraper group and the magnetic separation surface of the high-field-strength high-gradient permanent magnet magnetic separation disk are in frictional contact with each other, and the materials attracted by the magnetic separation surface are scraped off; the scraping disk is An assembly made of various non-magnetic materials. Preferably, the rotation direction of the rotating scraper group is opposite to the rotation direction of the high field strength and high gradient permanent magnet magnetic separation disk group.

The flushing device is a flushing device made of non-magnetic materials. The device directs the flushing liquid to the magnetic separation surface of the high-field-strength high-gradient permanent magnet magnetic separation disc, and flushes and sinks the substances sucked out of the magnetic separation surface. into the material receiving tray, and then flow out from the fine material outlet of the material receiving tray.

The transmission device is a set of components made of different materials, which drives the high field strength and high gradient permanent magnetic magnetic separation disc group and the rotary scraper group of the rotating scraper disc to rotate. It is composed of various materials.

The machine cover is the top cover of the high field strength and high gradient permanent magnet magnetic separator, and the material can be magnetic or non-magnetic. Of course, it is also possible not to use the machine cover.

The working mode of the high-field-strength high-gradient permanent magnet magnetic separator of the present invention is: the ore pulp enters the sorting area from the feeding port of the high-field-strength high-gradient permanent magnetic magnetic separator separating tank, and the rotating high The high-field-strength and high-gradient permanent magnet magnetic separation disk is in contact with the high-field-strength high-gradient permanent magnetic separation disk, which is driven by the transmission; On the magnetic separation surface, as the magnetic separation surface rotates to the scraping plate, the scraping plate will scrape off the substances sucked on the magnetic separation surface, and be washed and enriched by the liquid sprayed out by the washer, and the fine material from the receiving plate The material outlet flows out; the magnetic and weak magnetic substances in the pulp are sucked out, and the pulp at this time is called tailings, and the tailings are discharged from the tailings outlet of the separation tank; in this way, the purpose of continuous beneficiation is realized.

The number of permanent magnet magnetic separators, gaps, diameter and thickness, magnetic field strength and gradient of the permanent magnet magnetic separator of the present invention can be flexibly designed according to different usage sites.

In order to illustrate the basic content of the present invention more clearly, it will be described below in conjunction with the drawings and specific embodiments.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a high-field-strength high-gradient permanent magnet magnetic separator of the present invention.

Fig. 2 is a schematic diagram of the separation tank 1 of the high-field-strength high-gradient permanent magnet magnetic separator of the present invention.

Fig. 3 is a schematic diagram of the magnetic separation disk group 2 of the high-field-strength high-gradient permanent magnetic separator of the present invention.

FIG. 4 is a schematic diagram of a single permanent magnet magnetic separation disk 12 in the magnetic separation disk group of the high-field-strength high-gradient permanent magnet magnetic separator of the present invention.

Fig. 5 is a schematic diagram of the scraping disc 4 of the high-field-strength high-gradient permanent magnet magnetic separator of the present invention.

Fig. 6 is a schematic diagram of the washer 5 of the high-field-strength high-gradient permanent magnet magnetic separator of the present invention.

Detailed ways

A kind of high field strength high gradient permanent magnetic magnetic separator of the present invention is described below in conjunction with specific embodiment, described embodiment is in order to illustrate the present invention better, and can not be interpreted as the restriction to the claims of the present invention .

Figure 1 is a three-dimensional schematic diagram of a high-field-strength and high-gradient permanent magnet magnetic separator, in which, 1 is a separation tank, 2 is a high-field-strength and high-gradient permanent magnetic magnetic separator group, 3 is a positioning bearing seat, and 4 is a scraping plate , 5 is a flushing device, 6 is a transmission device, and 7 is a machine cover. The positioning bearing seat 3 positions the high field strength and high gradient permanent magnet magnetic separation disc group 2 in the separation tank 1; the scraper disc 4 and the flusher 5 are installed in the manner shown in Figure 1, and the machine cover 7 is installed in the separation tank 1, the high field strength and high gradient permanent magnet magnetic separation disc group 2, the scraper disc 4 and the flushing device 5 are covered in the machine cover; the transmission device 6 is connected with the high field strength and high gradient permanent magnet magnetic separation disc group 2, And drive the high-field-strength high-gradient permanent magnet magnetic separation disk group 2 to rotate.

Fig. 2 is a schematic diagram of the separation tank 1, the separation tank is composed of a feed inlet 8, a separation area 9, a tailings outlet 10 and a separation tank support 11, and the feed inlet 8, the separation area 9, and the tailings outlet 10 are all fixed on On the separation tank support 11, the feed inlet 8, the separation area 9, and the tailings outlet 10 are all made of non-magnetic materials, and the separation tank support 11 can be made of magnetic materials or non-magnetic materials.

Fig. 3 is the schematic diagram of high field strength and high gradient permanent magnet magnetic separation disc group 2, high field strength and high gradient permanent magnet magnetic separation disc group 2 is composed of multiple permanent magnetic magnetic separation discs 12, central shaft 13, positioning pin 14 and positioning bolt 15 Composition; the central shaft 13 has a positioning key pin groove, the permanent magnetic magnetic selection disc 12 has a central protrusion, and the center of the central protrusion has a shaft hole, and there is a positioning bolt hole in the direction perpendicular to the central shaft hole of the central protrusion; the positioning pin 14 is placed in the center In the positioning key pin groove of the shaft 13, the permanent magnet magnetic selection disc 12 is set on the central shaft, and then the permanent magnetic magnetic selection disc 12 is fixed on the central shaft 13 with the positioning bolt 15, so that other permanent magnetic magnetic selection discs are put on. The selection disc 12 is parallel to the permanent magnetic selection disc 12 with a gap.

Fig. 4 is the single permanent magnetic magnetic separation disk 12 schematic diagrams in the high field strength high gradient permanent magnetic magnetic separation disk group, the permanent magnetic magnetic separation disk 12 is made up of central wheel hub 16, aluminum support 17, different specifications magnetic blocks 18, different specifications soft Iron sheet 19, arc crown 20, magnetic assembly positioning bolt 21 and nut 22, outer circumference wrapping sheet 23 and wrapping sheet positioning screw 24; central hub 16, aluminum bracket 17, magnetic block 18 of different specifications, soft iron of different specifications The sheet 19 and the arc crown 20 are all drilled with magnetic assembly positioning bolt holes of equal distance and equal aperture, and the center of the arc crown surface of the arc crown 20 and the outer circumference wrapping sheet 23 are drilled with wrapping positioning screw holes; Bolt hole magnetic assembly positioning bolt 21 according to arc crown 20, soft iron sheet 19, magnetic block 18, soft iron sheet 19, magnetic block 18, soft iron sheet 19, magnetic block 18... soft iron sheet 19, aluminum bracket The sequence of 17 strings them together, the polarity of the magnetic block 18 on the contact surface on both sides of each piece of soft iron sheet 19 is the same, and the contact surfaces between different components are bonded with metal glue and compacted to form a fan-shaped magnetic assembly. And be fixed on the center wheel hub 16 by magnetic assembly positioning bolt 21 and nut 22, a plurality of fan-shaped magnetic assemblies are positioned by outer circumference wrapping sheet 23 and wrapping sheet set screw 24 again, form a permanent magnetic magnetic selection disc 12.

Parallel to each other between the permanent magnetic magnetic separation disc 12 and the permanent magnetic magnetic separation disc 12, and there is a certain gap, preferably, the gap between adjacent permanent magnetic magnetic separation discs is equal; preferably, the gap is greater than or equal to 30mm, more Preferably, the gap is greater than or equal to 40mm. Both sides of the permanent magnetic magnetic separation disk 12 are magnetic separation surfaces, on the magnetic separation surface, the magnetic induction intensity of the soft iron sheet 19 area is the highest, and the high one can reach more than 1.2T. The permanent magnetic magnetic separation disk 12 can be made into a large diameter as required, such as Φ600mm, Φ800mm, or larger.

The permanent magnetic magnetic selection disc 12 is an assembly made of different materials, wherein the central hub 16 can be made of magnetic or non-magnetic materials; the aluminum support 17 is made of aluminum or can be made of other non-magnetic materials ; The soft iron sheet 19 is made of electrical pure iron or cobalt steel; the arc crown 20 is made of a non-magnetic material; the outer circumference wrapping piece 23 is made of a non-magnetic material.

Fig. 5 is a schematic diagram of the scraper disc 4. The scraper disc 4 can be made into two forms: a fixed scraper disc and a rotary scraper disc: one side of the fixed scraper disc is processed into a rectangular tooth shape, and the size of the rectangular tooth 25 and the permanent magnet The gap between the selection discs 12 is equal or slightly smaller, the moment tooth 25 stretches in the gap of the permanent magnet magnetic separation disc 12, and the both sides of the moment tooth 25 are equipped with a scraper 26, and the scraper 26 and the permanent magnet magnetic separation disc 12 The magnetic separation surfaces are closely connected, but relatively movable. There are baffles 27 on the other side and two sides to block the selected fine material, and a fine material outlet 28 is installed on one of the sides; the rotating scraping disc is controlled by a The rotating scraper group 29, the rotating shaft 30 and the rotating bearing seat of the rotating scraper are composed, the rotating scraper group 29 is vertically installed on a rotating shaft 30, and the rotating shaft 30 is parallel to the rotating shaft of the high field strength and high gradient permanent magnet magnetic separation disk group , and be fixed on the separation groove support 11 by the rotating scraper group rotating bearing seat, its direction of rotation is opposite to the direction of rotation of the high field strength high gradient permanent magnetic magnetic separation disk group 2, when rotating, the 29 edge faces of the rotating scraper group and the permanent The magnetic separation surfaces of the magnetic separation disk 12 are in frictional contact with each other, scraping off the materials held by the magnetic separation surfaces. The rotating bearing seat of the rotating scraper is a standard part; the scraping disc 4 is an assembly, and its manufacturing material can be composited by various non-magnetic materials.

Fig. 6 is a schematic diagram of flushing device 5, 31 is the flushing liquid inlet, 32 is the flushing liquid main pipe, 33 is the blind plate of the flushing liquid main pipe, 34 is the flushing liquid branch pipe, 35 is the blind plate of the flushing liquid branch pipe, and 36 is the spray on the flushing liquid branch pipe. liquid hole. Its working method is: the flushing liquid enters the flushing liquid main pipe 32 from the flushing liquid inlet 31, and is shunted to the flushing liquid branch pipe 34 under the blocking action of the flushing liquid main pipe blind plate 33, and then is blocked by the flushing liquid branch pipe blind plate 35. , the rinsing liquid is ejected at high speed from the liquid spray hole 36, sprayed onto the magnetic separation surfaces of both sides of the permanent magnet magnetic separation disk 12, and the magnetic minerals absorbed on the magnetic separation surface are washed down, collected in the material receiving tray, and Outflow from the fine material outlet 28 on which it is set. The material of the washer 5 is stainless steel or other non-magnetic materials.

Preferably, the manufacturing form of the material receiving tray is the same as that of the fixed scraping tray.

The mode of operation of the high-field-strength high-gradient permanent magnet magnetic separator described in this specific embodiment is: the ore pulp enters into the sorting area 9 from the feed inlet 8 of the high-field-strength high-gradient permanent magnetic separator separation tank 1, and In the sorting area 9 and the magnetic separation surface contact of the permanent magnetic magnetic separation disc 12 in the high field strength high gradient permanent magnetic magnetic separation disc group 2 of the rotation, the high field strength high gradient permanent magnetic magnetic separation disc 12 is driven by the transmission device 6; The magnetic substances and weakly magnetic substances in the pulp are attracted by the high gradient magnetic field to the magnetic separation surface of the high field strength and high gradient permanent magnet magnetic separation disk 12. As the magnetic separation surface rotates, the scraper disc 4 will absorb the substances on the magnetic separation surface Scrape off and flow out from the concentrate outlet of the material receiving tray; the magnetic and weak magnetic substances in the pulp are sucked out, and the pulp at this time is called tailings, and the tailings are discharged from the tailings outlet 10 of the sorting tank 1; continuous operation in this way , to achieve the purpose of continuous separation of minerals.

It should be noted that, depending on the specific circumstances, the machine cover can be used or not; the position of the supporting pivot shaft in the permanent magnet magnetic separator can be provided with a positioning bearing; Personnel are clear, and other fixing methods such as riveting can also be used.

The unloading device can be at least one of a fixed scraping disk, a rotating scraping disk or a flusher. When the flusher is used in combination, as the magnetic separation surface rotates, the scraping disk will absorb the material on the magnetic separation surface It is scraped off and washed and enriched by the liquid sprayed out by the washer, and flows out from the concentrate outlet of the receiving tray; the tailings are discharged from the tailings outlet of the sorting tank; such continuous operation achieves the purpose of continuous mineral separation.

Claims (12)

1. A high-field-strength high-gradient permanent-magnet magnetic separator, which comprises a separation slot (1), high-field-strength high-gradient permanent-magnet magnetic separation disc group (2), unloading device, transmission (6), machine Cover (7); the high-field-strength and high-gradient permanent-magnet magnetic-separation disk group (2) is positioned in the separation groove (1), the transmission device (6) and the high-field-strength high-gradient permanent-magnet magnetic separation disk group (2) connected with each other and drive it to rotate; the high-field-strength and high-gradient permanent magnet magnetic separation disc group (2) includes a plurality of permanent magnetic magnetic separation discs (12) and a central shaft (13), and each permanent magnetic magnetic separation disc (12) is covered with Fixed on the central axis, parallel between the permanent magnet magnetic separation disk (12) and the permanent magnetic magnetic separation disk (12), and there is a gap, it is characterized in that: each permanent magnetic magnetic separation disk (12) is composed of a central wheel hub ( 16), an aluminum support (17), a plurality of magnetic blocks (18) of different specifications, a plurality of soft iron sheets (19) of different specifications, an arc crown (20) and an outer circumference wrapping sheet (23); (20), soft iron sheet (19), magnetic block (18), soft iron sheet (19), magnetic block (18), ... soft iron sheet (19), aluminum support (17) are connected in series Get up and be fixed to form a fan-shaped magnetic assembly, the polarity of the magnetic piece of every soft iron sheet (19) both sides contact surface is the same, the fan-shaped magnetic assembly is fixed on the central wheel hub, and a plurality of fan-shaped magnetic assemblies are formed by Outer circumference bag sheet (23) is positioned, thus forms a permanent magnetic magnetic separation disk. 2. The high-field-strength high-gradient permanent magnet magnetic separator as claimed in claim 1, wherein said gaps are equal. 3. The high-field-intensity high-gradient permanent magnet magnetic separator according to claim 1 or 2, wherein the gap is greater than or equal to 30mm. 4. The high-field-strength high-gradient permanent magnet magnetic separator as claimed in claim 1 or 2, wherein the gap is greater than or equal to 40mm. 5. as claimed in claim 1 or 2 described high-field-strength high-gradient permanent magnetic magnetic separator, described each contact surface is bonded, compacted with metal glue; Each permanent magnetic magnetic separation disc (12) is enclosed within on the central axis And the fixed fixing method is screw connection; each permanent magnetic magnetic separation disc (12) is made of central wheel hub (16), aluminum support (17), a plurality of magnetic blocks (18) of different specifications, a plurality of soft irons of different specifications sheet (19), arc crown (20) and outer circumference bag sheet (23), according to arc crown (20), soft iron sheet (19), magnetic block (18), soft iron sheet (19), magnetic block ( 18), ... soft iron sheet (19), aluminum bracket (17) are connected in series and fixed to form a fan-shaped magnetic assembly. The fixing method is screw connection; the fan-shaped magnetic assembly is fixed on the central hub The fixing method is screw connection. 6. The high-field-strength high-gradient permanent magnet magnetic separator as claimed in claim 1 or 2, wherein the aluminum support (17) is made of aluminum material. 7. The high-field-strength high-gradient permanent magnet magnetic separator as claimed in claim 1 or 2, wherein the soft iron sheet (19) is made of electrical pure iron or cobalt steel. 8. The high-field-strength high-gradient permanent magnet magnetic separator as claimed in claim 1 or 2, wherein the arc crown (20) and the outer circumference wrapping sheet (23) are made of non-magnetic materials. 9. The high-field-strength high-gradient permanent magnet magnetic separator as claimed in claim 1 or 2, said sorting tank (1) is composed of feed inlet (8), sorting area (9), tailings outlet (10) It is composed of the separation tank bracket (11); the feed inlet (8), the separation area (9) and the tailings outlet (10) are all fixed on the separation tank bracket (11), and the high field strength and high gradient permanent magnet magnetic separation The disc group (2) is positioned on the separation slot support (11). 10. The high-field-strength and high-gradient permanent magnetic separator according to claim 1 or 2, wherein the unloading device is at least one of a fixed scraper pan, a rotating scraper pan or a washer. 11. high-field-strength high-gradient permanent magnetic magnetic separator as claimed in claim 10, one side of described fixed scraping disc is processed into rectangular tooth shape, the size of rectangular tooth (25) and permanent magnetic magnetic separation disc (12) The gap between them is equal or slightly smaller, and the moment tooth (25) stretches in the gap of the permanent magnetic magnetic separation disc (12), and the both sides of the moment tooth (25) are equipped with a scraper (26), and the scraper (26) and The magnetic separation surfaces of the permanent magnet magnetic separation disc (12) are closely connected, but relatively movable, and the other side and the two sides have baffle plates (27) for blocking the selected fine materials, and one of the sides is equipped with a Concentrate export (28). 12. The high-field-strength high-gradient permanent magnet magnetic separator as claimed in claim 10, said sorting tank (1) is composed of feed inlet (8), sorting area (9), tailings outlet (10) and sorting Composed of slotted brackets (11); the rotating scraper disc is composed of a rotating scraper group (29), a rotating shaft (30), and a rotating bearing seat of the rotating scraper group, and the rotating scraper group (29) is vertically installed on the rotating shaft (30), the rotating shaft (30) of this rotating shaft (30) is parallel to the rotating shaft of the high-field-strength high-gradient permanent magnetic magnetic separation disk group (2), and is fixed on the separation groove support (11) by the rotating scraper group rotating bearing seat, When rotating, the magnetic separation surface of the rotating scraper group (29) and the permanent magnet magnetic separation disc (12) are in frictional contact with each other, and the material that the magnetic separation surface is attracted is scraped off.

Images