Semi-automatic slurry iron removal device capable of efficiently removing scrap iron

Abstract

The utility model discloses a semi-automatic slurry de-ironing device capable of efficiently removing scrap iron, which comprises a rack, de-ironing barrels, a driving bracket, a permanent magnet rod mounting plate, permanent magnet rods and a driving mechanism, and further comprises a plurality of permanent magnet rod scrapers in one-to-one correspondence with the de-ironing barrels, and the outer diameter of the circular permanent magnet rod scrapers is smaller than that of the circular permanent magnet rod mounting plate; a plurality of vertical through holes are formed in the permanent magnet rod scraping plate, a circular rubber scraping ring is mounted in each vertical through hole, and a plurality of permanent magnet rods connected to the lower surface of each permanent magnet rod mounting plate respectively penetrate through central through holes of a plurality of rubber scraping rings corresponding to the permanent magnet rod scraping plate one by one and are in close contact with the central through holes of the rubber scraping rings on the permanent magnet rod scraping plate one by one. According to the utility model, the permanent magnet bar scraping plate is additionally arranged, so that when scrap iron adsorbed on the permanent magnet bar is removed, the scrap iron can be thoroughly removed from the permanent magnet bar only by sliding the permanent magnet bar scraping plate from top to bottom until the permanent magnet bar scraping plate is separated from the permanent magnet bar, the operation is simple, the removal is thorough, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a slurry iron removal device for battery material production, and more particularly to a semi-automatic slurry iron removal device for efficiently removing iron filings. Background Technology

[0002] The battery materials industry is a crucial component of the new energy sector. With the rapid development of markets such as electric vehicles and energy storage systems, the demand for battery materials is increasingly strong. The quality of battery materials directly affects battery performance and lifespan; therefore, ensuring the high purity of battery materials is paramount. Iron removal, as a key step in improving the purity of battery materials, is of great significance to battery material production.

[0003] In the battery materials industry, such as lithium battery materials, the requirements for iron impurity content are extremely stringent, requiring it to be at the ppm level (parts per million). Iron impurities not only reduce the battery's discharge capacity and cycle life but can also cause internal short circuits and safety hazards. Therefore, the iron impurity content must be strictly controlled during the battery material production process to ensure battery performance and quality.

[0004] Iron removal from battery materials is generally achieved using the principle of magnetic adsorption. The corresponding equipment is called a battery material iron removal device. The magnet can be a permanent magnet or an electromagnet. The magnet is placed inside the battery material, and iron filings and impurities in the material are attracted to the magnet, achieving the purpose of iron removal. To improve iron removal efficiency, liquid battery material slurry is typically continuously fed into an iron removal cylinder. Magnetic rods are placed inside the cylinder, and iron filings are attracted to the magnetic rods. This type of device is generally called a slurry iron removal device.

[0005] Iron removal devices for battery materials can be classified into fully automatic and semi-automatic slurry iron removal devices based on their level of automation. The basic structure of a traditional semi-automatic slurry iron removal device includes a frame, an iron removal cylinder, permanent magnets, and a drive mechanism. Multiple iron removal cylinders are mounted on the frame, and multiple permanent magnets are driven vertically by the drive mechanism. Each iron removal cylinder has multiple permanent magnets at its top, and the upper ends of these permanent magnets are mounted on a permanent magnet mounting plate. During operation, the drive mechanism moves the permanent magnets downward into the iron removal cylinder, and the permanent magnet mounting plate seals with the cylinder flange at the upper end of the iron removal cylinder. Then, the battery material slurry is fed into the iron removal cylinder. As the battery material slurry flows within the iron removal cylinder, the iron filings are attracted by the multiple permanent magnets, achieving the purpose of iron removal.

[0006] The aforementioned traditional semi-automatic slurry iron removal device has the following drawbacks: the method of removing iron filings from the permanent magnet rod is to use hands or tools such as rags to remove the iron filings from the permanent magnet rod from top to bottom and let them fall into the collection container below. This method is not only time-consuming and labor-intensive, but also inefficient and does not remove the iron filings completely. In addition, the lower end of the traditional permanent magnet rod is also cylindrical, and iron filings are easy to adhere to the lower end face of the permanent magnet rod, making it difficult to remove them completely. Iron filings stuck to the bottom of the permanent magnet rod mounting plate are also difficult to remove completely.

[0007] In addition, the aforementioned traditional semi-automatic slurry iron removal device has the following drawbacks: The cylinder flange has a sealing ring groove, and an O-ring seal is installed in this groove to seal with the permanent magnet rod mounting plate. There is a gap between the lower part of the O-ring seal and the sealing ring groove, and battery material slurry easily accumulates in this gap, making cleaning the iron removal cylinder difficult and reducing cleaning and production efficiency. The drive mechanism of the aforementioned traditional semi-automatic slurry iron removal device uses a hydraulic cylinder, which is not only costly but also detrimental to energy conservation and environmental protection. The permanent magnet rod mounting plate and the cylinder flange at the upper end of the iron removal cylinder are all connected by bolts. During the cleaning of the iron removal cylinder and the removal of iron filings from the permanent magnet rod, the permanent magnet rod mounting plate and the cylinder flange need to be disassembled and reassembled. Since the entire iron removal device generally includes multiple iron removal cylinders, each disassembly and reassembly operation, as well as multiple disassembly and reassembly operations during batch production, are time-consuming and labor-intensive, reducing production efficiency and increasing production costs. Utility Model Content

[0008] The purpose of this invention is to provide a semi-automatic slurry iron removal device that efficiently removes iron filings in order to solve the above-mentioned problems.

[0009] This utility model achieves the above objectives through the following technical solutions:

[0010] A semi-automatic slurry iron removal device for efficient removal of iron filings includes a frame, iron removal cylinders, a drive support, permanent magnet rod mounting plates, permanent magnet rods, and a drive mechanism. Multiple iron removal cylinders are mounted on the frame. The drive support is connected to the drive end of the drive mechanism and is capable of vertical movement. Multiple permanent magnet rod mounting plates, corresponding one-to-one with the multiple iron removal cylinders, are respectively mounted on the drive support and positioned directly above the multiple iron removal cylinders. The lower part of each permanent magnet rod mounting plate is connected to the upper end of multiple permanent magnet rods. When the multiple permanent magnet rods on each mounting plate are placed inside the corresponding iron removal cylinder, ... The permanent magnet rod mounting plate is sealed to the corresponding iron removal cylinder flange at the upper end of the cylinder body through a locking device. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings also includes multiple horizontal permanent magnet rod scrapers corresponding to the multiple iron removal cylinder bodies. The outer diameter of the circular permanent magnet rod scraper is smaller than the outer diameter of the circular permanent magnet rod mounting plate. The permanent magnet rod scraper is provided with multiple vertical through holes, and a circular rubber scraper ring is installed in each vertical through hole. Multiple permanent magnet rods connected to the bottom of each permanent magnet rod mounting plate pass through the central through holes of the multiple rubber scraper rings corresponding to each other on the permanent magnet rod scraper and are in close contact.

[0011] Preferably, in order to remove iron filings from the permanent magnet rod more quickly and thoroughly, the lower end of the permanent magnet rod is a cone shape that is larger at the top and smaller at the bottom.

[0012] Preferably, in order to prevent the battery material slurry inside the iron removal cylinder from adhering to the permanent magnet rod mounting plate, the upper end diameter of the hole wall of the central through hole of the cylinder flange is increased to form an annular step, and the circumferential edge of the corresponding permanent magnet rod scraper can be placed on the annular step.

[0013] Preferably, to avoid the accumulation of battery material slurry in the sealing ring groove of the cylindrical flange, which would make it difficult to clean and improve cleaning and production efficiency, an annular sealing ring groove is provided on the upper part of the cylindrical flange near its central through hole, and an annular sealing ring is installed in the sealing ring groove. The radial cross-section of the annular sealing ring is circular at the top and square at the bottom, and its lower outer wall is in close contact with the bottom and side walls of the sealing ring groove.

[0014] Preferably, in order to reduce driving costs and facilitate energy saving and environmental protection, the driving mechanism is a cylinder, and the upper ends of the push rods of the two cylinders are respectively connected to the two ends of the driving bracket through floating joints.

[0015] Preferably, to improve the assembly and disassembly efficiency between the cylindrical flange and the permanent magnet mounting plate, the locking device includes an "L"-shaped locking handle, a locking connecting rod, a first locking pin, and a second locking pin. The "L"-shaped locking handle includes a long handle rod and a short handle rod that are connected to each other and integrally formed. The surface of the suspended end of the short handle rod is an arc-shaped surface. A transverse handle through hole is provided on the short handle rod near its suspended end but not at the center of the surface of the suspended end. A first "U"-shaped groove is provided in the middle of the suspended end of the short handle rod, and the handle through hole penetrates the two side walls of the first "U"-shaped groove. The upper and lower ends of the vertical locking connecting rod are respectively provided with transverse connecting rod through holes. Multiple second "U"-shaped grooves with outer openings are evenly provided on the cylindrical flange and the permanent magnet mounting plate near the circumferential edge. The lower part of the cylindrical flange is provided with downward-facing grooves on both sides of the corresponding second "U"-shaped grooves. The protruding flange plate, the cylindrical flange and the permanent magnet rod mounting plate have multiple second "U" shaped grooves that are vertically aligned and correspond one-to-one with multiple locking devices. In each locking device, the first locking pin passes through the through holes on the corresponding two flange plates and the connecting rod through hole at the lower end of the locking rod, with the lower end of the locking rod located between the two flange plates. The second locking pin passes through the corresponding handle through hole and the connecting rod through hole at the upper end of the locking rod, with the upper end of the locking rod located in the first "U" shaped groove. When the permanent magnet rod mounting plate and the corresponding cylindrical flange are sealed together by the locking device, the middle section of the locking rod passes through the corresponding second "U" shaped groove on the cylindrical flange and the permanent magnet rod mounting plate. One end of the first locking pin and the second locking pin are provided with a locking pin cap with a larger outer diameter, and the other end has an annular groove on its outer circumference, with a retaining ring installed in the annular groove.

[0016] Preferably, in order to facilitate adjustment of the length of the locking link to enable adjustment of the locking degree, the locking link includes a first locking link and a second locking link. The upper end of the first locking link is the upper end of the locking link, and the lower end of the second locking link is the lower end of the locking link. The lower end of the first locking link and the upper end of the second locking link are connected by a threaded sleeve.

[0017] Preferably, to avoid the upper end of the locking link affecting the normal rotation of the "L"-shaped locking handle, the upper end of the first locking link and the lower end of the second locking link are both spherical.

[0018] Preferably, in order to increase the pressure contact area between the permanent magnet rod mounting plate and the corresponding position of the "L"-shaped locking handle and reduce the frictional force of the rotation of the "L"-shaped locking handle, the locking device further includes a hard pad with self-lubricating function. The hard pad is fitted outside the locking rod through its own central through hole and is located between the suspended end of the handle short rod and the permanent magnet rod mounting plate.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention adds a permanent magnet scraper with multiple rubber scraper rings, each passing through a central through-hole in the corresponding rubber scraper ring. To remove iron filings from the permanent magnet, simply slide the scraper from top to bottom until it detaches from the magnet, thoroughly removing the filings. This simple and thorough operation improves production efficiency. Furthermore, a locking device consisting of an "L"-shaped locking handle, a locking rod, and a locking pin is installed between the cylinder flange and the permanent magnet mounting plate. During assembly, simply rotate the "L"-shaped locking handle and the locking rod to allow the locking rod to pass through the cylinder. The first "U"-shaped grooves corresponding to the body flange and the permanent magnet rod mounting plate are then rotated. The long handle of the "L"-shaped locking handle is rotated so that the suspended end of the short handle presses against the permanent magnet rod mounting plate. After multiple locking devices are pressed together, a quick and reliable connection and assembly between the body flange and the permanent magnet rod mounting plate can be achieved. Disassembly can be performed by simply reversing the operation to quickly separate the body flange and the permanent magnet rod mounting plate. This enables rapid disassembly and assembly of the permanent magnet rod mounting plate and the body flange, which significantly improves disassembly and assembly efficiency during the cleaning of the iron removal cylinder and the removal of iron filings from the permanent magnet rod, thereby increasing production efficiency and reducing production costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the semi-automatic slurry iron removal device for high-efficiency removal of iron filings described in this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the semi-automatic slurry iron removal device for high-efficiency removal of iron filings described in this utility model;

[0023] Figure 3 This is a partially enlarged three-dimensional structural diagram of the locking device of the semi-automatic slurry iron removal device for high-efficiency removal of iron filings described in this utility model, which is in the locked state.

[0024] Figure 4 This is a three-dimensional structural diagram of the locking device of the semi-automatic slurry iron removal device for high-efficiency removal of iron filings described in this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the permanent magnet scraper of the semi-automatic slurry iron removal device for high-efficiency removal of iron filings described in this utility model.

[0026] Figure 6 This is a partial cross-sectional view of the annular sealing ring of the semi-automatic slurry iron removal device for high-efficiency removal of iron filings described in this utility model, in which the sealing ring is installed in the sealing ring groove of the cylinder flange. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-6 As shown, the semi-automatic slurry iron removal device for high-efficiency removal of iron filings of this utility model includes a frame 1, an iron removal cylinder 3, a drive support 4, a permanent magnet rod mounting plate 5, permanent magnet rods 6, and a drive mechanism (refer to cylinder 18 in the following description). Multiple iron removal cylinders 3 are mounted on the frame 1. The drive support 4 is connected to the drive end of the drive mechanism and can move vertically. Multiple permanent magnet rod mounting plates 5, corresponding one-to-one with the multiple iron removal cylinders 3, are respectively mounted on the drive support 4 and located directly above the multiple iron removal cylinders 3. The lower part of each permanent magnet rod mounting plate 5 is connected to the upper end of multiple (5 in the figure) permanent magnet rods 6. When the multiple permanent magnet rods 6 on each permanent magnet rod mounting plate 5 are placed inside the corresponding iron removal cylinder 3, the permanent magnet rods are mounted... Plate 5 is sealed to the upper end of the corresponding iron removal cylinder 3 via locking device 7. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings also includes multiple horizontal permanent magnet scrapers 9 corresponding to multiple iron removal cylinders 3. The outer diameter of the circular permanent magnet scraper 9 is smaller than the outer diameter of the circular permanent magnet mounting plate 5. The permanent magnet scraper 9 is provided with multiple vertical through holes and a circular rubber scraper ring 10 is installed in each vertical through hole. Multiple permanent magnets 6 connected to the bottom of each permanent magnet mounting plate 5 pass through the central through holes of multiple rubber scraper rings 10 corresponding to each other on a permanent magnet scraper 9 and are in close contact. The lower end of the permanent magnet 6 is a cone 61 that is larger at the top and smaller at the bottom, that is, the lower end of the permanent magnet 6 is bullet-shaped.

[0029] like Figures 1-6 As shown, this utility model also discloses the following more optimized specific structures:

[0030] In order to remove iron filings from the permanent magnet rod 6 more quickly and thoroughly, the lower end of the permanent magnet rod 6 is a cone 61 that is larger at the top and smaller at the bottom, that is, the lower end of the permanent magnet rod 6 is bullet-shaped.

[0031] In order to prevent the battery material slurry inside the iron removal cylinder 3 from adhering to the permanent magnet rod mounting plate 5, the upper end diameter of the hole wall of the central through hole of the cylinder flange 13 is increased to form an annular step 12, and the circumferential edge of the corresponding permanent magnet rod scraper 9 can be placed on the annular step 12.

[0032] To prevent battery material slurry from accumulating in the sealing ring groove of the cylindrical flange 13 and making it difficult to clean, thereby improving cleaning efficiency and production efficiency, an annular sealing ring groove is provided on the upper part of the cylindrical flange 13 near its central through hole, and an annular sealing ring 11 is installed in the sealing ring groove. The upper part of the radial cross section of the annular sealing ring 11 is circular and the lower part is square, and its lower outer wall is in close contact with the bottom and side walls of the sealing ring groove.

[0033] In order to reduce driving costs and facilitate energy saving and environmental protection, the driving mechanism is a cylinder 18, and the upper ends of the push rods 16 of the two cylinders 18 are respectively connected to the two ends of the driving bracket 4 through floating joints 15.

[0034] To improve the assembly and disassembly efficiency between the cylinder flange 13 and the permanent magnet mounting plate 5, the locking device includes an "L"-shaped locking handle 71, locking links (refer to the first locking link 72 and the second locking link 78 described below), a first locking pin 76, and a second locking pin 74. The "L"-shaped locking handle 71 includes a long handle rod (not marked in the figure) and a short handle rod (not marked in the figure) that are connected to each other and integrally formed. The surface of the suspended end of the short handle rod is an arc-shaped surface. The short handle rod near its suspended end... Furthermore, a horizontal handle through hole (not marked in the figure) is provided at the center of the surface of the suspended end, and a first "U"-shaped groove (not marked in the figure) is provided in the middle of the suspended end of the handle rod, with the handle through hole penetrating both sides of the groove wall of the first "U"-shaped groove. The upper and lower ends of the vertical locking rod are respectively provided with horizontal connecting rod through holes (not marked in the figure). Multiple second "U"-shaped grooves with outer openings (not marked in the figure) are evenly provided on the cylinder flange 13 and the permanent magnet rod mounting plate 5 near the circumferential edge. (Note) Below the cylindrical flange 13, on both sides of the corresponding second "U" shaped groove, there are downwardly protruding flange plates 77. The multiple second "U" shaped grooves of the cylindrical flange 13 and the permanent magnet rod mounting plate 5 are vertically corresponding one-to-one and correspond one-to-one with multiple locking devices 7. In each locking device 7, the first locking pin 76 passes through the through holes on the corresponding two flange plates 77 and the connecting rod through hole at the lower end of the locking rod, and the lower end of the locking rod is located between the two flange plates 77. The second locking pin 74... When the permanent magnet rod mounting plate 5 and the corresponding cylindrical flange 13 are sealed together by the locking device 7, the middle section of the locking rod passes through the corresponding handle through hole and the connecting rod through hole at the upper end of the locking rod, and the upper end of the locking rod is located in the first "U" groove. The middle section of the locking rod passes through the corresponding second "U" groove on the cylindrical flange 13 and the permanent magnet rod mounting plate 5. One end of the first locking pin 76 and the second locking pin 74 is provided with a locking pin cap with a larger outer diameter, and the other end is provided with an annular groove on the outer circumference, and a retaining ring 73 is installed in the annular groove.

[0035] To facilitate adjustment of the length of the locking link to enable adjustable locking degree, the locking link includes a first locking link 72 and a second locking link 78. The upper end of the first locking link 72 is the upper end of the locking link, and the lower end of the second locking link 78 is the lower end of the locking link. The lower end of the first locking link 72 and the upper end of the second locking link 78 are connected by a threaded sleeve.

[0036] To prevent the upper end of the locking link from affecting the normal rotation of the "L"-shaped locking handle 71, the upper end of the first locking link 72 and the lower end of the second locking link 78 are both spherical.

[0037] In order to increase the pressure contact area on the permanent magnet rod mounting plate 5 corresponding to the "L"-shaped locking handle 71 and reduce the friction force of the rotation of the "L"-shaped locking handle 71, the locking device also includes a hard pad 75 with self-lubricating function. The hard pad 75 is preferably a polyetheretherketone sheet. The hard pad 75 is fitted outside the locking rod through its own central through hole and is located between the suspended end of the handle short rod and the permanent magnet rod mounting plate 5.

[0038] Figure 1 and Figure 2 The diagram also shows the feed connector 2, discharge connector 14 and sampling connector 8 connected to the corresponding iron removal cylinder 3, as well as the guide rod 17 connected between the drive 4 and the cylinder 18. These structures are all conventional adaptive structures.

[0039] like Figures 1-6As shown, during iron removal, the cylinder 18 first drives the drive bracket 4 to move downwards. The drive bracket 4 then drives multiple permanent magnet rod mounting plates 5, multiple permanent magnet rods 6, and multiple permanent magnet rod scrapers 9 to move downwards synchronously until the multiple permanent magnet rods 6 are respectively located inside their corresponding iron removal cylinders 3, the edges of the multiple permanent magnet rod scrapers 9 are respectively placed on their corresponding annular steps 12, and the multiple permanent magnet rod mounting plates 5 are respectively located on multiple cylinder flanges 13 and basically press against their corresponding annular sealing rings 11. At this time, the cylinder 18 is stopped. The permanent magnet rod mounting plate 5 contacts the bottom; then, for each locking device 7, the following operation is performed: hold the long handle of the "L"-shaped locking handle 71 and move it upwards. The "L"-shaped locking handle 71 and the locking link will rotate around the first locking pin 76 until the middle section of the locking link passes through the corresponding first "U"-shaped groove on the cylinder flange 13 and the permanent magnet rod mounting plate 5 and is in a vertical position. Then, hold the long handle of the "L"-shaped locking handle 71 and move it downwards to make it rotate around the second locking pin 74, using the short handle of the "L"-shaped locking handle 71. The suspended end of the plate presses the rigid gasket 75, which in turn presses the permanent magnet rod mounting plate 5. The permanent magnet rod mounting plate 5 then presses the corresponding annular sealing ring 11. The upper surface of the permanent magnet rod scraper 9 is in close contact with the lower surface of the corresponding permanent magnet rod mounting plate 5, thus completing the locking operation of the locking device 7. After all the locking devices 7 have completed their locking operations, all the permanent magnet rod mounting plates 5 are sealed to the corresponding cylinder flange 13. Then, the relevant valves are opened, and the battery material slurry is fed from the feed inlet 2 into the first iron removal cylinder 3, and then sequentially... After passing through multiple iron removal cylinders 3, each cylinder 3 contains multiple permanent magnets 6 that strongly adsorb iron filings in the battery material slurry until they are almost completely removed. The iron-removed battery material slurry is then discharged from the discharge connector 14 to the storage tank or the next process. During the iron removal process, the iron content in the battery material slurry is sampled and tested through the sampling connector 8. The iron content is used to understand the iron removal effect of the battery material slurry at the corresponding flow rate. Based on this, the flow rate is adjusted to achieve a better iron removal effect and maintain high production efficiency.

[0040] After a period of iron removal, a lot of iron filings will be adsorbed on the permanent magnet rod 6. In order to prevent the iron filings from falling off and reducing the iron removal effect, the permanent magnet rod 6 needs to be iron removed. At this time, the locking device 7 needs to be operated in reverse first to quickly disassemble the permanent magnet rod mounting plate 5 from the corresponding cylindrical flange 13. The cylinder 18 drives multiple permanent magnet rod mounting plates 5, multiple permanent magnet rods 6 and multiple permanent magnet rod scrapers 9 to move upward to their original positions. Place (or hold) a container for collecting iron filings under the permanent magnet rod 6. Then hold the permanent magnet rod scraper 9 and move it from top to bottom until the permanent magnet rod scraper 9 disengages from the corresponding permanent magnet rod 6. Most of the iron filings can be scraped off into the container. Then use your hand or a rag to scrape off the iron filings on the cone 61 at the lower end of the permanent magnet rod 6. The iron removal operation of the permanent magnet rod 6 is completed. The whole process is much simpler and faster than the traditional method of scraping the permanent magnet rod 6 by hand, and the removal is more thorough. Then, follow the locking procedure of the locking device to continue the iron removal operation of the battery material slurry. If it is necessary to clean the iron removal cylinder 3, the disassembly and assembly process is the same as above, which significantly improves the disassembly and assembly efficiency compared to the traditional bolt connection structure.

[0041] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A semi-automatic slurry iron removal device for efficient removal of iron filings, comprising a frame, an iron removal cylinder, a drive support, a permanent magnet rod mounting plate, permanent magnets, and a drive mechanism. Multiple iron removal cylinders are mounted on the frame. The drive support is connected to the drive end of the drive mechanism and is vertically movable. Multiple permanent magnet rod mounting plates, corresponding one-to-one with the multiple iron removal cylinders, are respectively mounted on the drive support and positioned directly above the multiple iron removal cylinders. The lower part of each permanent magnet rod mounting plate is connected to the upper end of multiple permanent magnets. When the multiple permanent magnets on each mounting plate are placed inside the corresponding iron removal cylinder, the mounting plate and the upper flange of the corresponding iron removal cylinder are sealed together by a locking device. The device is characterized in that: The semi-automatic slurry iron removal device for efficient removal of iron filings also includes multiple horizontal permanent magnet scrapers corresponding to the multiple iron removal cylinders. The outer diameter of the circular permanent magnet scraper is smaller than the outer diameter of the circular permanent magnet mounting plate. The permanent magnet scraper is provided with multiple vertical through holes, and a circular rubber scraper ring is installed in each vertical through hole. Multiple permanent magnets connected to the bottom of each permanent magnet mounting plate pass through the central through holes of the multiple rubber scraper rings corresponding to each other on the permanent magnet scraper and are in close contact.

2. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to claim 1, characterized in that: The lower end of the permanent magnet rod is a cone shape that is larger at the top and smaller at the bottom.

3. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to claim 1, characterized in that: The diameter of the upper end of the central through hole of the cylindrical flange is increased to form an annular step, and the circumferential edge of the corresponding permanent magnet scraper can be placed on the annular step.

4. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to any one of claims 1-3, characterized in that: The upper part of the cylindrical flange is provided with an annular sealing groove near its central through hole, and an annular sealing ring is installed in the sealing groove. The radial cross-section of the annular sealing ring is circular at the top and square at the bottom, and its lower outer wall is in close contact with the bottom and side walls of the sealing groove.

5. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to any one of claims 1-3, characterized in that: The driving mechanism is a cylinder, and the upper ends of the push rods of the two cylinders are respectively connected to the two ends of the driving bracket through floating joints.

6. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to any one of claims 1-3, characterized in that: The locking device includes an "L"-shaped locking handle, a locking connecting rod, a first locking pin, and a second locking pin. The "L"-shaped locking handle includes a long handle rod and a short handle rod that are connected to each other and integrally formed. The surface of the suspended end of the short handle rod is an arc-shaped surface. A horizontal handle through hole is provided on the short handle rod near its suspended end but not at the center of the surface circle of the suspended end. A first "U"-shaped groove is provided in the middle of the suspended end of the short handle rod, and the handle through hole penetrates the two side walls of the first "U"-shaped groove. The upper and lower ends of the vertical locking connecting rod are respectively provided with horizontal connecting rod through holes. Multiple second "U"-shaped grooves with outer openings are evenly provided on the cylindrical flange and the permanent magnet rod mounting plate near the circumferential edge. The lower part of the cylindrical flange is provided with downwardly protruding flange plates on both sides of the corresponding second "U"-shaped grooves. The multiple second "U"-shaped grooves of the permanent magnet rod mounting plate are vertically aligned and correspond one-to-one with the multiple locking devices. In each locking device, the first locking pin passes through the through holes on the corresponding two flange protrusions and the connecting rod through hole at the lower end of the locking rod, with the lower end of the locking rod located between the two flange protrusions. The second locking pin passes through the corresponding handle through hole and the connecting rod through hole at the upper end of the locking rod, with the upper end of the locking rod located in the first "U"-shaped groove. When the permanent magnet rod mounting plate and the corresponding cylindrical flange are sealed together by the locking device, the middle section of the locking rod passes through the corresponding second "U"-shaped groove on the cylindrical flange and the permanent magnet rod mounting plate. One end of the first locking pin and the second locking pin are provided with a locking pin cap with a larger outer diameter, and the other end has an annular groove on its outer circumference, with a retaining ring installed in the annular groove.

7. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to claim 6, characterized in that: The locking link includes a first locking link and a second locking link. The upper end of the first locking link is the upper end of the locking link, and the lower end of the second locking link is the lower end of the locking link. The lower end of the first locking link and the upper end of the second locking link are connected by a threaded sleeve.

8. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to claim 7, characterized in that: The upper end of the first locking link and the lower end of the second locking link are both spherical.

9. The semi-automatic slurry iron removal device for high-efficiency removal of iron filings according to claim 6, characterized in that: The locking device also includes a self-lubricating hard pad, which is fitted outside the locking linkage through its central through hole and located between the suspended end of the handle rod and the permanent magnet rod mounting plate.

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