CN216106155U

CN216106155U - Magnetic separation device

Info

Publication number: CN216106155U
Application number: CN202122584451.2U
Authority: CN
Inventors: 李冀; 李玉龙; 陈振民; 陈志刚
Original assignee: Lysteel Co Ltd
Current assignee: Lysteel Co Ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-22
Anticipated expiration: 2031-10-26

Abstract

The application provides a magnetic separation device, including: the shell is provided with a liquid inlet and a liquid outlet, and the liquid outlet is formed in the bottom wall of the shell; the magnetic adsorption mechanism is rotatably arranged on the shell and is positioned above the liquid outlet; the transfusion channel comprises a first channel and a second channel which are sequentially connected, the first channel is communicated with the liquid inlet, the first channel extends to a position close to the magnetic adsorption mechanism from the liquid inlet, the second channel is located between the magnetic adsorption mechanism and the liquid outlet, the second channel is an arc-shaped channel, the arc-shaped surface of the second channel is matched with the rotating surface of the magnetic adsorption mechanism and has an interval, one side, far away from the first channel, of the second channel is lower than one side, close to the first channel, of the second channel and is higher than the lowest point of the second channel, and a circulation space communicated to the liquid outlet is arranged between one side, far away from the first channel, of the second channel and the shell. This equipment can avoid the residue in the waste liquid to stay in the casing and take place to pile up to block up the leakage fluid dram.

Description

Magnetic separation device

Technical Field

The application belongs to the technical field of auxiliary equipment, and more specifically relates to a magnetic separation device.

Background

In industrial processing, a large amount of waste liquid containing ferromagnetic substances and the like may be generated, and for example, in grinding rolls used for rolling steel, a large amount of waste liquid containing ferrous substances may be generated. In order to recycle the waste liquid, a magnetic separation device is generally used to separate ferromagnetic substances in the waste liquid. The existing magnetic separation equipment has the following defects: firstly, when the waste liquid passes through the magnetic separation equipment, a large amount of ferromagnetic substances in the waste liquid can not be adsorbed by the magnetic adsorption mechanism generally, so that the separation efficiency is low; secondly, since the waste liquid contains a large amount of non-adsorbed ferromagnetic substances, the non-adsorbed ferromagnetic substances are likely to accumulate inside the device in the process of discharging the device.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a magnetic separation equipment to solve the technical problem that the waste liquid is piled up easily to the separation efficiency that current magnetic separation equipment exists is lower and waste liquid residue.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a magnetic separation apparatus, characterized by comprising:

the liquid outlet is arranged on the bottom wall of the shell;

the magnetic adsorption mechanism is rotatably arranged on the shell and is positioned above the liquid outlet;

the transfusion channel comprises a first channel and a second channel which are sequentially connected, the first channel is communicated with the liquid inlet, the first channel extends to a position close to the magnetic adsorption mechanism through the liquid inlet, the second channel is located between the magnetic adsorption mechanism and the liquid outlet, the second channel is an arc-shaped channel, the arc-shaped surface of the second channel is matched with the rotating surface of the magnetic adsorption mechanism and has an interval, one side of the second channel, which is far away from the first channel, is lower than one side, which is close to the first channel, of the second channel and is higher than the lowest point of the second channel, and a circulation space communicated to the liquid outlet is arranged between one side of the second channel, which is far away from the first channel, and the shell.

According to an embodiment of the application, still be provided with the baffler in the casing, the baffler by the leakage fluid dram extends to the second passageway, the baffler, the second passageway with the casing forms the circulation space.

According to an embodiment of the application, the magnetic adsorption mechanism comprises a roller and a plurality of magnetic rings sleeved on the roller, and the plurality of magnetic rings are sequentially arranged along the extending direction of the roller.

According to an embodiment of the application, the magnetic adsorption mechanism further comprises a plurality of iron rings sleeved on the roller, and the plurality of iron rings are arranged along the extending direction of the roller and are arranged in a crossed manner with the plurality of magnetic rings.

According to an embodiment of the present application, the magnetic adsorption mechanism further includes a plurality of magnetic ring sleeves, the plurality of magnetic ring sleeves are disposed on edges of the plurality of magnetic rings, and a sealing layer is disposed between the magnetic ring sleeves and the iron ring.

According to an embodiment of the application, the surface of the iron ring facing the magnet ring is provided with a recess along the circumference of the iron ring, and the magnet ring sleeve is partially embedded in the recess of the iron ring.

According to an embodiment of the application, the magnetic adsorption mechanism further comprises end rings and fixing pieces, wherein the end rings and the fixing pieces are arranged at two ends of the roller, the end rings are attached to the magnetic rings located at the most end parts of the plurality of magnetic rings, the fixing pieces are located on one sides, deviating from the magnetic rings, of the end rings, and the fixing pieces are used for axially fixing the end rings.

According to an embodiment of the application, magnetic separation equipment is still including scraping sediment mechanism and slag discharge channel, it is close to scrape sediment mechanism the rotating surface of magnetic adsorption mechanism, with be used for with the slag body that magnetic adsorption mechanism adsorbs is scraped and is fallen extremely scrape sediment mechanism, slag discharge channel's one end with scrape the link up of sediment mechanism.

According to one embodiment of the application, one side of the slag scraping mechanism close to the magnetic adsorption mechanism is lower than one side of the slag scraping mechanism far away from the magnetic adsorption mechanism.

According to an embodiment of the application, magnetic separation equipment still includes the fender liquid board, the fender liquid board is located the top of magnetic adsorption mechanism, and is close to the surface of rotation of magnetic adsorption mechanism is used for right the liquid that takes over when magnetic adsorption mechanism is rotatory blocks.

The magnetic separation equipment provided by the application has at least the following beneficial effects: on the one hand, set up the arc passageway through the below at magnetic adsorption mechanism, like this, when the waste liquid gets into this arc passageway, under the cushioning effect of arc passageway, the waste liquid in the waste liquid can suitably stop at this arc passageway to make magnetic adsorption mechanism can adsorb ferromagnetic substance wherein more fully, thereby improved separation efficiency. On the other hand, through setting up the leakage fluid dram in the below of arc passageway, like this, the waste liquid that flows out from the arc passageway can directly fall into the leakage fluid dram of below or be close to the region of leakage fluid dram through the circulation space between arc passageway and the casing, has reduced the accumulational probability of waste residue.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a cross-sectional view of a magnetic separation device provided in an embodiment of the present application;

fig. 2 is a top view of a magnetic separation apparatus provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a magnetic attraction mechanism according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1. a housing; 11. a liquid inlet; 12. a liquid discharge port; 2. a magnetic adsorption mechanism; 21. a roller; 22. a magnetic ring; 23. an iron ring; 24. a magnetic ring sleeve; 25. an end ring; 26. a fixing member; 3. a fluid infusion channel; 31. a first channel; 32. a second channel; 4. a barrier plate; 5. a slag scraping mechanism; 6. a slag discharge channel; 7. a liquid baffle plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The application provides a magnetic separation device, which comprises a shell 1, a magnetic adsorption mechanism 2 and a transfusion channel 3. The shell 1 is provided with a liquid inlet 11 and a liquid outlet 12, and the liquid outlet 12 is arranged on the bottom wall of the shell 1. The magnetic adsorption mechanism 2 is rotatably arranged on the casing 1, and the magnetic adsorption mechanism 2 is positioned above the liquid discharge port 12. The liquid conveying channel 3 comprises a first channel 31 and a second channel 32 which are connected in sequence, the first channel 31 is communicated with the liquid inlet 11, and the first channel 31 extends from the liquid inlet 11 to be close to the magnetic adsorption mechanism 2. The second channel 32 is located between the magnetic adsorption mechanism 2 and the liquid discharge port 12, the second channel 32 is an arc-shaped channel, an arc-shaped surface of the second channel 32 is matched with a rotating surface of the magnetic adsorption mechanism 2 and has a gap, one side of the second channel 32, which is far away from the first channel 31, is lower than one side of the second channel 32, which is close to the first channel 31, and is higher than the lowest point of the second channel 32, and a circulation space communicated to the liquid discharge port 12 is arranged between one side of the second channel 32, which is far away from the first channel 31, and the housing 1.

In production application, for example, a roll needs to be replaced periodically during steel rolling, the replaced roll is ground by using a special grinding machine, and a large amount of grinding heat and grinding mud generated during grinding need to be driven by cooling water. In order to recycle the cooling water, the magnetic adsorption equipment can be used for cleaning the cooling water, so that the purpose of recycling the cooling water is achieved. The principle of cleaning impurities in the cooling water is that waste liquid is injected into a magnetic adsorption device, waste residues and the waste liquid in the waste liquid are separated by the magnetic separation device, so that the separate waste residues and the separate waste liquid are obtained and are subjected to secondary utilization or centralized treatment and the like.

The operation principle of the magnetic separation device will be described below by taking the magnetic separation device in an operating state as an example.

As shown in fig. 1, the magnetic separation apparatus includes a housing 1 and a magnetic adsorption mechanism 2, wherein the housing 1 is provided with a liquid inlet 11 and a liquid outlet 12, and the liquid outlet 12 is disposed on a bottom wall of the housing 1. The magnetic attraction mechanism 2 is located above the liquid discharge port 12. Furthermore, the above-mentioned separating apparatus comprises a feed channel 3 for conveying the waste liquid. The liquid conveying channel 3 comprises a first channel 31 and a second channel 32 which are sequentially connected, the first channel 31 is communicated with the liquid inlet 11, the second channel 32 is positioned between the magnetic adsorption mechanism 2 and the liquid outlet 12, and a circulating space communicated to the liquid outlet 12 is also arranged between the second channel 32 and the shell 1.

Waste liquid is injected into the magnetic separation equipment, enters the shell 1 from the liquid inlet 11 and flows to the second channel 32 along the first channel 31. Because the second channel 32 is an arc-shaped channel, and the side of the second channel 32 far from the first channel 31 is lower than the side of the second channel 32 near the first channel 31, the flow speed of the waste liquid after entering the second channel 32 is gradually reduced, and the waste liquid stays in the second channel 32 for a longer time. At this time, the magnetic adsorption mechanism 2 disposed above the second channel 32 can adsorb the slag in the waste liquid to separate the slag and the waste liquid. Along with the rotation of magnetic adsorption mechanism 2, the surface of magnetic adsorption mechanism 2 is whole to be adhered to there is the waste residue for more and more waste residues are adsorbed by magnetic adsorption mechanism 2, thereby realize the separation of waste residue and waste liquid. While the waste liquid separated from the slag is discharged out of the casing 1 by leaving the second passage 32 through the circulation space connected to the discharge port 12 and dropping into the discharge port 12.

In the above scheme, the inclination of the first channel 31 may be set to 10 °, so that the flow rate of the waste liquid is controlled while the waste liquid smoothly flows from the first channel 31 to the second channel 32, so that the waste liquid can smoothly and slowly flow, and the waste liquid flows into the second channel at a suitable speed, so that the magnetic adsorption mechanism 2 can more sufficiently adsorb ferromagnetic substances in the waste liquid.

The second channel 32 is set to be an arc-shaped channel, the magnetic adsorption mechanism 2 is arranged above the arc-shaped channel, and the rotating surface of the magnetic adsorption mechanism 2 is matched with the arc-shaped channel and has an interval. Regarding the spacing distance, the distance between the lowest point of the second channel 32 and the rotation surface of the magnetic attraction mechanism 2 may be set to be 18-25 mm, such as 20mm, with respect to the lowest point of the second channel 32, so as to ensure that the second channel is located in the magnetic attraction range of the magnetic attraction mechanism 2. When the waste liquid enters the second channel 32, the waste liquid is accumulated at the lowest point of the second channel 32, and the accumulated waste liquid is not discharged from the second channel 32 until the accumulated waste liquid is higher than the height of the second channel 32 far away from the first channel 31. That is, the waste liquid stays in the second channel 32 for a longer time, and the magnetic adsorption mechanism 2 is given enough time to adsorb the waste slag, so that the efficiency of adsorbing the waste slag is improved.

And set up drain 12 at the diapire of casing 1 to make second passageway 32 keep away from one side of first passageway 31 have with the circulation space that drain 12 communicates, can make waste liquid and remaining waste residue flow out casing 1 along drain 12, avoid waste liquid and remaining waste residue to stay in casing 1, and take place to pile up in casing 1, lead to drain 12 to block up even, and then influence waste residue and waste liquid separation efficiency.

Referring to fig. 1, in an embodiment, a blocking plate 4 is further disposed in the housing 1, the blocking plate 4 extends from the liquid outlet 12 to the second channel 32, and the blocking plate 4, the second channel 32 and the housing 1 form a flow space.

When the waste liquid flows from the second passage 32 to the circulation space communicating with the liquid discharge port 12, the waste liquid can be effectively blocked because the barrier plate 4 extending from the liquid discharge port 12 to the second passage 32 is provided at the liquid discharge port 12. The phenomenon that the waste liquid flows to the rest areas of the shell 1 by bypassing the liquid outlet 12 is avoided, so that the waste liquid and the waste residues remained in the waste liquid are stopped in the rest areas of the shell 1, and the probability of the residual waste residues existing in the shell 1 is reduced.

As shown in fig. 3, in an embodiment, the magnetic attraction mechanism 2 includes a roller 21 and a plurality of magnetic rings 22 disposed on the roller 21, and the plurality of magnetic rings 22 are sequentially arranged along an extending direction of the roller 21.

A plurality of magnetic rings 22 are sleeved on the roller 21, so that when part of the magnetic rings 22 fail or are damaged, the corresponding magnetic rings 22 can be replaced. Compared with the method that one magnetic part is arranged on the roller 21 and is integrally replaced, the method that the plurality of magnetic rings 22 are arranged reduces the cost and saves the resources. The magnetic flux density of the magnetic ring 22 adopted in the present embodiment may be 80 to 120 gauss, for example, 100 gauss.

Further, the magnetic adsorption mechanism 2 further includes a plurality of iron rings 23 sleeved on the roller 21, and the plurality of iron rings 23 are arranged along the extending direction of the roller 21 and are arranged in a cross manner with the plurality of magnetic rings 22.

Because the iron ring 23 can be arranged between the two adjacent magnetic rings 22, the polarities of the two adjacent magnetic rings 22 can be opposite, thereby improving the adsorption capacity of the whole magnetic adsorption mechanism 2.

Furthermore, the magnetic attraction mechanism 2 further includes a plurality of magnetic ring sleeves 24, the plurality of magnetic ring sleeves 24 are disposed at the edges of the plurality of magnetic rings 22, and a sealing layer is disposed between the magnetic ring sleeves 24 and the iron ring 23.

When the magnetic adsorption mechanism 2 operates, the iron ring 23 is magnetized and magnetized by the magnetic ring 22. Because the magnetic ring sleeve 24 is sleeved on the edge of the magnetic ring 22, the magnetism of the magnetic ring 22 can be blocked. Therefore, the waste slag can be adsorbed only by the iron ring 23 while protecting the magnetic ring 22. Because the iron rings 23 and the magnetic rings 22 are arranged in a crossed manner, a certain gap exists between the waste slag adsorbed between the two adjacent iron rings 23. When clearing up the waste residue on hoop 23 surface like this, also be convenient for scrape sediment mechanism 5 such as scum board and act on the waste residue to make the waste residue drop from hoop 23.

In addition, the magnetic ring sleeve 24 can also protect the surface of the magnetic ring 22 from being damaged, and the service life of the magnetic ring 22 is prolonged. And sealant can be smeared between the magnetic ring sleeve 24 and the iron ring 23 to seal the gap between the magnetic ring sleeve 24 and the iron ring 23. So, can avoid the waste liquid to get into the inside of magnetic adsorption mechanism 2 from between magnetic ring 22 and the hoop 23 when the waste liquid follows the waste residue and comes the magnetic ring 22 surface, and then produce adverse effect to magnetic adsorption mechanism 2.

The gap between the outer diameter of the magnetic ring 22 and the inner diameter of the magnetic ring sleeve 24 may be 0.05mm to avoid play when the magnetic ring 22 rotates.

Referring to fig. 3, in an embodiment, a surface of the iron ring 23 facing the magnetic ring 22 is provided with a recess along a circumferential direction of the iron ring 23, and the magnetic ring sleeve 24 is partially embedded in the recess of the iron ring 23.

When the iron rings 23 and the magnetic rings 22 are installed on the roller 21 in a crossed arrangement, two sides of one magnetic ring 22 are respectively provided with one iron ring 23, and the surface of each iron ring 23 facing the magnetic ring 22 is provided with a concave part. When the magnetic ring sleeve 24 is installed on the edge of the magnetic ring 22, the middle section of the magnetic ring sleeve 24 is attached to the edge of the magnetic ring 22, and the two ends are respectively located in the recessed portion of one iron ring 23. With the arrangement, not only is the connection stability between the magnetic ring sleeve 24 and the iron ring 23 improved, but also the probability that waste liquid enters the magnetic adsorption mechanism 2 from the connection position between the magnetic ring sleeve 24 and the iron ring 23 is reduced.

Secondly, the magnetic adsorption mechanism 2 further includes end rings 25 and fixing pieces 26, the end rings 25 are disposed at two ends of the roller 21, the end rings 25 are attached to the magnetic ring 22 located at the end of the plurality of magnetic rings 22, the fixing pieces 26 are located on the side, away from the magnetic ring 22, of the end rings 25, and the fixing pieces 26 are used for axially fixing the end rings 25.

The end ring 25 is attached to the magnetic ring 22 at the end of the end rings 25, and the end ring 25 is axially fixed by the fixing member 26, so that the magnetic ring 22 can be fixed at a predetermined position of the roller 21, and the magnetic ring 22 is prevented from moving in the axial extension direction of the roller 21 when rotating.

The magnetic attraction mechanism 2 in this embodiment may be driven by a driving member such as a motor. It is easy to understand that a speed reducer may be disposed between the motor and the magnetic attraction mechanism 2 to adjust the rotation speed of the magnetic attraction mechanism 2. The motor and the reducer can be placed by providing a mounting bracket on the outside of the housing 1.

In addition, the shaft body of the roller 21 used in this embodiment is provided with a key slot, the iron ring 23 and the magnetic ring 22 are also provided with corresponding key slots, and the iron ring 23 and the magnetic ring 22 are mounted on the roller 21 by means of the key and the key slot. Of course, the iron ring 23 and the magnetic ring 22 may be mounted by using parts such as a snap, which is not illustrated here.

As shown in fig. 1, in an embodiment, the magnetic separation apparatus further includes a slag scraping mechanism 5 and a slag discharging channel 6, the slag scraping mechanism 5 is close to the rotating surface of the magnetic adsorption mechanism 2 for scraping the slag adsorbed by the magnetic adsorption mechanism 2 to the slag scraping mechanism 5, and one end of the slag discharging channel 6 is connected to the slag scraping mechanism 5.

When the magnetic adsorption mechanism 2 operates, the waste residue is adsorbed while rotating, so that the waste residue is driven to rotate together. When the waste residue that adsorbs on magnetic adsorption mechanism 2 surface is close to scraping sediment mechanism 5, scrape the tip that sediment mechanism 5 is close to magnetic adsorption mechanism 2 and contact with the waste residue to make the waste residue drop from magnetic adsorption mechanism 2 to scrape on sediment mechanism 5. Because one end of the slag discharging channel 6 is connected with the slag scraping mechanism 5, the slag falling in the slag scraping mechanism 5 can move to the designated position along the slag discharging channel 6.

The aforesaid setting can in time be cleared up the waste residue that adheres to 2 surfaces at magnetic adsorption mechanism for magnetic adsorption mechanism 2 can be continuous adsorbs all the other waste residues, but also can carry out centralized processing to the waste residue.

In some embodiments, the slag discharging passage 6 may be modified, for example, by setting the height of the two opposite side walls of the slag discharging passage 6 to 120mm, so as to prevent the slag from falling to the outside of the slag discharging passage 6 from the edges when the slag is discharged from the slag discharging passage 6.

In one embodiment, the side of the slag scraping mechanism 5 close to the magnetic adsorption mechanism 2 is lower than the side of the slag scraping mechanism 5 far away from the magnetic adsorption mechanism 2.

As shown in fig. 1 and 2, a scraper may be used as the scraper mechanism 5, and the inclination of the scraper after installation is 15 °. When the waste residue falls onto the slag scraping plate, part of the waste liquid falls onto the slag scraping plate along with the waste residue. At this time, the side of the scraper close to the magnetic adsorption mechanism 2 is lower than the side of the scraper far from the magnetic adsorption mechanism 2, so that the waste liquid flows to the side of the scraper close to the magnetic adsorption mechanism 2 under the action of the gravity of the waste liquid, finally drops from the scraper, returns to the inside of the shell 1, and finally flows out from the liquid discharge port 12 of the shell 1.

In an embodiment, the magnetic separation apparatus further includes a liquid blocking plate 7, and the liquid blocking plate 7 is located above the magnetic adsorption mechanism 2 and close to the rotation surface of the magnetic adsorption mechanism 2, so as to block the liquid brought out by the rotation of the magnetic adsorption mechanism 2.

When the magnetic adsorption mechanism 2 adsorbs the waste residue, part of the waste liquid is adsorbed to the surface of the magnetic adsorption mechanism 2 together with the waste residue, and the waste liquid adsorbed to the surface of the magnetic adsorption mechanism 2 splashes under the rotation of the magnetic adsorption mechanism 2 because the magnetic adsorption mechanism 2 continuously rotates. And set up the top that keeps off liquid board 7 at magnetic adsorption mechanism 2 and can effectively block the waste liquid, avoid the waste liquid to spatter the outside of casing 1.

It is easy to understand that, the parts of this embodiment except the magnetic ring are all made of stainless steel material, so as to prevent iron chips from adhering to some parts when the waste slag is separated.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic separation apparatus, comprising:

the liquid outlet is arranged on the bottom wall of the shell;

2. The magnetic separation device of claim 1, wherein a baffle plate is further disposed in the housing, the baffle plate extending from the drain to the second passage, the baffle plate, the second passage and the housing forming the flow-through space.

3. A magnetic separation apparatus as claimed in claim 1, wherein the magnetic attraction means comprises a roller and a plurality of magnetic rings fitted around the roller, the plurality of magnetic rings being arranged in sequence along the extension direction of the roller.

4. The magnetic separation apparatus of claim 3, wherein the magnetic attraction mechanism further comprises a plurality of iron rings disposed around the roller, the plurality of iron rings being disposed along the extension direction of the roller and being crossed with the plurality of magnetic rings.

5. The magnetic separation apparatus of claim 4, wherein the magnetic attraction mechanism further comprises a plurality of magnetic rings sleeved on edges of the plurality of magnetic rings, and a sealing layer is disposed between the magnetic rings and the iron ring.

6. A magnetic separation apparatus according to claim 5 wherein the surface of the iron ring facing the magnetic ring is provided with a recess along the circumference of the iron ring, the magnetic ring sleeve being partially embedded in the recess of the iron ring.

7. The magnetic separation device of claim 3, wherein the magnetic attraction mechanism further comprises end rings disposed at two ends of the roller, the end rings being engaged with the magnetic ring at the end of the plurality of magnetic rings, and a fixing member disposed at a side of the end rings facing away from the magnetic ring, the fixing member being configured to axially fix the end rings.

8. The magnetic separation equipment according to any one of claims 1 to 7, further comprising a slag scraping mechanism and a slag discharging channel, wherein the slag scraping mechanism is close to the rotating surface of the magnetic adsorption mechanism and is used for scraping the slag adsorbed by the magnetic adsorption mechanism to the slag scraping mechanism, and one end of the slag discharging channel is connected with the slag scraping mechanism.

9. The magnetic separation apparatus of claim 8, wherein a side of the skimming mechanism near the magnetic adsorption mechanism is lower than a side of the skimming mechanism away from the magnetic adsorption mechanism.

10. The magnetic separation device of any one of claims 1 to 7, further comprising a liquid baffle plate located above the magnetic adsorption mechanism and close to the rotating surface of the magnetic adsorption mechanism for blocking liquid carried over by the magnetic adsorption mechanism when the magnetic adsorption mechanism rotates.