Magnetic metal particle adsorption equipment for lithium battery wastewater treatment

Abstract

The utility model relates to the technical field of lithium battery wastewater treatment, in particular to magnetic metal particle adsorption equipment for lithium battery wastewater treatment, which comprises a lithium battery wastewater discharge port and a rotary adsorption mechanism arranged on the outer side of the lithium battery wastewater discharge port. The supporting ring is fixedly connected with a fixed bracket, the bottom of the fixed bracket is fixedly connected with a transverse connecting plate, and the bottom of the transverse connecting plate is fixedly connected with permanent magnets in a linear array on the outer side of the lithium battery wastewater discharge port. The magnetic metal particles in the lithium battery wastewater are adsorbed through the permanent magnet, the permanent magnet is rotated to be aligned with the scraping suite after adsorption, the adsorbed magnetic metal particles are scraped off through the movement of the scraping suite, and the magnetic metal particles fall onto the drawing plate to be recycled. And the magnetic metal particles can be conveniently, automatically and rapidly recycled.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery wastewater treatment technology, specifically a magnetic metal particle adsorption device for lithium battery wastewater treatment. Background Technology

[0002] Lithium-ion battery wastewater treatment refers to the process of purifying wastewater containing heavy metals (such as nickel, cobalt, and manganese), organic matter, fluorides, and acid and alkali pollutants generated during the lithium-ion battery production process. Its core processes include technologies such as chemical precipitation, coagulation and flocculation, membrane separation, ion exchange, and advanced oxidation to remove harmful substances and recover scarce resources such as lithium.

[0003] Lithium battery wastewater often contains magnetic metal particles such as nickel, cobalt, and iron. Direct discharge of these particles will pollute the environment and waste resources. Permanent magnets can efficiently adsorb these particles through a strong magnetic field, which can not only separate most of the magnetic metal particles in lithium battery wastewater, but also reduce the cost of subsequent lithium battery wastewater treatment.

[0004] In existing technologies, after using multiple sets of permanent magnets to adsorb magnetic metal particles in lithium battery wastewater, external mechanical equipment can only scrape off the magnetic metal particles on the surface of the permanent magnets one by one. It is inconvenient to scrape off the metal particles adsorbed on multiple sets of permanent magnets at the same time, and it is impossible to quickly recover the magnetic metal particles. Utility Model Content

[0005] The purpose of this invention is to provide a magnetic metal particle adsorption device for lithium battery wastewater treatment, so as to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A magnetic metal particle adsorption device for lithium battery wastewater treatment includes a lithium battery wastewater outlet and a rotary adsorption mechanism disposed outside the lithium battery wastewater outlet. The rotary adsorption mechanism includes a rotatable support ring, a fixed bracket is fixedly connected to the support ring, a horizontal connecting plate is fixedly connected to the bottom of the fixed bracket, and a permanent magnet arranged in a linear array is fixedly connected to the bottom of the horizontal connecting plate and located outside the lithium battery wastewater outlet. The permanent magnets are used to adsorb magnetic metal particles in the lithium battery wastewater.

[0008] One side of the support ring is provided with a horizontally movable scraping mechanism. The scraping mechanism includes a protective cover, and inside the protective cover are scraping kits arranged in a vertical direction. The scraping kits are compatible with the permanent magnet, and a fixing plate is fixedly connected between any two adjacent scraping kits.

[0009] Preferably, a support frame is provided on one side of the support ring, a rotating rod is rotatably connected to the support frame, one end of the rotating rod is fixedly connected to the support ring, and an adjusting gear is fixedly connected to the rotating rod.

[0010] Preferably, an auxiliary bracket is fixedly connected to the support frame, and a first electric telescopic rod is fixedly installed on the auxiliary bracket. An adjusting rack is fixedly connected to the telescopic end of the first electric telescopic rod, and the adjusting rack and the adjusting gear mesh with each other.

[0011] Preferably, a second electric telescopic rod is fixedly installed on the support frame, a fixing block is fixedly connected to one side of the protective cover, the fixing block and the telescopic end of the second electric telescopic rod are fixedly connected, and a connecting block is fixedly connected between the inner wall of the protective cover and the scraping kit.

[0012] Preferably, a pull-out plate is slidably connected to the bottom of the inner wall of the protective cover, and a magnet is provided inside the pull-out plate.

[0013] Preferably, a servo motor is installed on the top of the protective cover, an adjusting screw is fixedly connected to the output end of the servo motor, a movable block is threaded onto the adjusting screw, a vertical scraper is fixedly connected to one side of the movable block, a guide rod is fixedly connected inside the protective cover, and the guide rod and the movable block are slidably connected.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a permanent magnet to adsorb magnetic metal particles in lithium battery wastewater as it flows out. After adsorption, the permanent magnet is rotated to align with a scraping device, which scrapes off the adsorbed magnetic metal particles, causing them to fall onto a pull-out plate for recycling. This facilitates automatic and rapid recovery of magnetic metal particles. After the magnetic metal particles are scraped off the permanent magnet, it can be rotated again to the lithium battery wastewater outlet for re-adsorption of magnetic metal particles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a utility model Figure 1 Rear view of the central support ring;

[0019] Figure 3 This is a utility model Figure 2 Schematic diagram of the middle support ring section;

[0020] Figure 4This is a utility model Figure 1 Cross-sectional view of the protective outer casing.

[0021] The attached figures are labeled as follows:

[0022] 1. Lithium battery wastewater discharge outlet; 2. Support ring; 3. Fixed bracket; 4. Horizontal connecting plate; 5. Permanent magnet; 6. Protective cover; 7. Scraping kit; 8. Fixed plate; 9. Support frame; 10. Rotating rod; 11. Adjusting gear; 12. Auxiliary bracket; 13. First electric telescopic rod; 14. Adjusting rack; 15. Second electric telescopic rod; 16. Fixed block; 17. Pull-out plate; 18. Servo motor; 19. Adjusting screw; 20. Movable block; 21. Vertical scraper; 22. Guide rod; 23. Connecting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] The magnetic metal particle adsorption device for lithium battery wastewater treatment proposed in this application is only one part of the lithium battery wastewater treatment system, and the corresponding process is as follows:

[0025] A magnetic adsorption reaction tank with a built-in stirring device is used to ensure that the wastewater and the magnetic adsorbent are in full contact. Then, surface-functionalized magnetic particles (such as Fe3O4@SiO2 or composite materials loaded with chelating groups) are added in a quantitative manner.

[0026] Then, the magnetic metal particle adsorption equipment in this application is used to initially adsorb the magnetic metal particles. Subsequently, there is a corresponding lithium battery wastewater treatment equipment for subsequent lithium battery wastewater treatment, such as (solid-liquid separation unit: magnetic separator or centrifuge, to separate saturated magnetic particles from purified water; regeneration and recycling system: pickling tank (such as dilute H2SO4) to desorb metal, magnetic separation to recover the adsorbent, and to achieve reuse).

[0027] like Figure 1 and Figure 4A magnetic metal particle adsorption device for lithium battery wastewater treatment includes a lithium battery wastewater outlet 1 (the lithium battery wastewater outlet 1 shown in the figure is only a part of the external wastewater outlet channel, not the complete wastewater outlet channel. The entire wastewater outlet channel is controlled by a solenoid valve to release water. The lithium battery wastewater outlet 1 and the external wastewater outlet channel in which it is located have external support) and a rotating adsorption mechanism set outside the lithium battery wastewater outlet 1. The rotating adsorption mechanism includes a rotatable support ring 2, a fixed bracket 3 is fixedly connected to the support ring 2, a horizontal connecting plate 4 is fixedly connected to the bottom of the fixed bracket 3, and a permanent magnet 5 arranged in a linear array is fixedly connected to the bottom of the horizontal connecting plate 4 and located outside the lithium battery wastewater outlet 1. The permanent magnet 5 is used to adsorb magnetic metal particles in the lithium battery wastewater.

[0028] The entire device has a wastewater recovery system at the bottom to recover the lithium battery wastewater that passes through the lithium battery wastewater discharge outlet 1. The wastewater recovery system is an external device.

[0029] A horizontally movable scraping mechanism is provided on one side of the support ring 2. The scraping mechanism includes a protective cover 6. Inside the protective cover 6, scraping kits 7 are arranged vertically. The scraping kits 7 are adapted to the permanent magnet 5 (the scraping kits 7 and the permanent magnet 5 are arranged correspondingly so that the scraping kits 7 can fit snugly against the surface of the permanent magnet 5. If a cylindrical permanent magnet 5 is used, the scraping kit 7 is a cylindrical sleeve; if the permanent magnet 5 is rectangular, the scraping kit 7 is a rectangular sleeve). A fixing plate 8 is fixedly connected between any two adjacent scraping kits 7.

[0030] like Figure 1 , Figure 2 and Figure 3 A support frame 9 is provided on one side of the support ring 2. The support frame 9 is fixed on the external mechanism and serves as the support for the entire device. A rotating rod 10 is rotatably connected to the support frame 9. One end of the rotating rod 10 is fixedly connected to the support ring 2. An adjusting gear 11 is fixedly connected to the rotating rod 10, so that the adjusting gear 11 can rotate synchronously with the support ring 2.

[0031] like Figure 1 , Figure 2 and Figure 3 An auxiliary bracket 12 is fixedly connected to the support frame 9, and a first electric telescopic rod 13 is fixedly installed on the auxiliary bracket 12. The first electric telescopic rod 13 is fixed to the support frame 9 through the auxiliary bracket 12. An adjusting rack 14 is fixedly connected to the telescopic end of the first electric telescopic rod 13, and the adjusting rack 14 meshes with the adjusting gear 11.

[0032] like Figure 1 , Figure 2 and Figure 3A second electric telescopic rod 15 is fixedly installed on the support frame 9. Both the second electric telescopic rod 15 and the first electric telescopic rod 13 are externally powered. A fixing block 16 is fixedly connected to one side of the protective cover 6. The fixing block 16 and the telescopic end of the second electric telescopic rod 15 are fixedly connected. A connecting block 23 is fixedly connected between the inner wall of the protective cover 6 and the scraping kit 7, so that the second electric telescopic rod 15 can drive the connecting block 23 and the protective cover 6 to move. A slide rail mechanism can be added below the protective cover 6 to assist the movement of the protective cover 6.

[0033] like Figure 1 and Figure 4 The bottom of the inner wall of the protective cover 6 is slidably connected to a pull plate 17, and a magnet is provided inside the pull plate 17.

[0034] like Figure 1 and Figure 4 A servo motor 18 is installed on the top of the protective cover 6. The servo motor 18 is connected to an external power supply and has a corresponding control switch. An adjusting screw 19 is fixedly connected to the output end of the servo motor 18. A movable block 20 is threadedly connected to the adjusting screw 19. A vertical scraper 21 is fixedly connected to one side of the movable block 20. A guide rod 22 is fixedly connected inside the protective cover 6. The guide rod 22 and the movable block 20 are slidably connected to ensure the up and down movement of the movable block 20 and the vertical scraper 21.

[0035] The working principle of the magnetic metal particle adsorption device for lithium battery wastewater treatment provided by this utility model is as follows:

[0036] When it is necessary to initially adsorb magnetic metal particles in lithium battery wastewater, the lithium battery wastewater first flows out through lithium battery wastewater outlet 1. During the outflow of lithium battery wastewater, permanent magnet 5 is used to adsorb the magnetic metal particles in the lithium battery wastewater. After the magnetic metal particles are adsorbed, the lithium battery wastewater can be recovered through the equipment below the whole device and transported to the next stage for subsequent lithium battery wastewater treatment.

[0037] After adsorption is completed (the valve of the external channel where the lithium battery wastewater outlet 1 is located is closed), the first electric telescopic rod 13 extends and drives the control rack 14 to move down. The control rack 14 drives the control gear 11 to rotate. The control gear 11 drives the support ring 2 to rotate through the rotating rod 10. The support ring 2 drives the fixed bracket 3, the transverse connecting plate 4 and the permanent magnet 5 to rotate 90°, so that the permanent magnet 5 is aligned with the scraping kit 7.

[0038] Then, the second electric telescopic rod 15 retracts, causing the protective cover 6 to move towards the permanent magnet 5, so that the scraping kit 7 inside the protective cover 6 moves to the outside of the permanent magnet 5, which can scrape off the magnetic metal particles on the surface of the permanent magnet 5. At the same time, the servo motor 18 drives the adjusting screw 19 to rotate in different directions, which can drive the movable block 20 and the vertical scraper 21 to move up and down, scraping off the magnetic metal particles at the end of the permanent magnet 5 that have passed through the scraping kit 7. The scraped magnetic metal particles fall onto the pull-out plate 17 for unified recycling.

[0039] Finally, the second electric telescopic rod 15 extends, causing the protective cover 6, the scraping kit 7 and the permanent magnet 5 to separate. The first electric telescopic rod 13 drives the adjusting rack 14 to move upward, causing the support ring 2 to drive the horizontal connecting plate 4 of the fixed bracket 3 and the permanent magnet 5 to rotate 90° and reset. The permanent magnet 5 then moves to the lithium battery wastewater discharge outlet 1 to adsorb magnetic metal particles.

[0040] Compared with related technologies, the magnetic metal particle adsorption device for lithium battery wastewater treatment provided by this utility model has the following beneficial effects:

[0041] This invention utilizes a permanent magnet 5 to adsorb magnetic metal particles in lithium battery wastewater as it flows out. After adsorption, the permanent magnet 5 is rotated to align with a scraping kit 7. The scraping kit 7 then scrapes off the adsorbed magnetic metal particles, causing them to fall onto a pull-out plate 17 for recycling. This facilitates automatic and rapid recycling of magnetic metal particles. After the magnetic metal particles are scraped off the permanent magnet 5, it can be rotated again to the lithium battery wastewater outlet 1 for re-adsorption of magnetic metal particles.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A magnetic metal particle adsorption device for lithium battery wastewater treatment, comprising a lithium battery wastewater discharge outlet (1) and a rotating adsorption mechanism arranged on the outer side of the lithium battery wastewater discharge outlet (1), characterized in that, The rotating adsorption mechanism comprises a rotatable supporting ring (2), a fixed support (3) fixedly connected to the supporting ring (2), a transverse connecting plate (4) fixedly connected to the bottom of the fixed support (3), and a plurality of permanent magnets (5) fixedly connected to the bottom of the transverse connecting plate (4) and located outside the lithium battery wastewater discharge outlet (1) in a linear array, wherein the permanent magnets (5) are used for adsorbing magnetic metal particles in the lithium battery wastewater. A horizontally movable scraping mechanism is arranged on one side of the supporting ring (2), and the scraping mechanism comprises a protective cover (6), wherein the inside of the protective cover (6) is provided with a plurality of scraping sleeves (7) arranged in a vertical direction, the scraping sleeves (7) are matched with the permanent magnets (5), and a fixed plate (8) is fixedly connected between any two adjacent scraping sleeves (7).

2. The magnetic metal particle adsorption equipment for lithium battery wastewater treatment according to claim 1, characterized in that, A supporting frame (9) is arranged on one side of the supporting ring (2), a rotating rod (10) is rotatably connected to the supporting frame (9), one end of the rotating rod (10) is fixedly connected to the supporting ring (2), and a control gear (11) is fixedly connected to the rotating rod (10).

3. The magnetic metal particle adsorption equipment for lithium battery wastewater treatment according to claim 2, characterized in that, An auxiliary bracket (12) is fixedly connected to the supporting frame (9), a first electric telescopic rod (13) is fixedly installed on the auxiliary bracket (12), a control rack (14) is fixedly connected to the telescopic end of the first electric telescopic rod (13), and the control rack (14) is engaged with the control gear (11).

4. The magnetic metal particle adsorption equipment for lithium battery wastewater treatment according to claim 2, characterized in that, A second electric telescopic rod (15) is fixedly installed on the supporting frame (9), a fixed block (16) is fixedly connected to one side of the protective cover (6), the fixed block (16) is fixedly connected to the telescopic end of the second electric telescopic rod (15), and a connecting block (23) is fixedly connected between the inner wall of the protective cover (6) and the scraping sleeve (7).

5. The magnetic metal particle adsorption equipment for lithium battery wastewater treatment according to claim 1, characterized in that, A pull-out plate (17) is slidably connected to the bottom of the inner wall of the protective cover (6), and a magnet is arranged in the pull-out plate (17).

6. The magnetic metal particle adsorption equipment for lithium battery wastewater treatment according to claim 1, characterized in that, A servo motor (18) is installed at the top of the protective cover (6), an adjusting screw (19) is fixedly connected to the output end of the servo motor (18), a movable block (20) is threadedly connected to the adjusting screw (19), a vertical scraper (21) is fixedly connected to one side of the movable block (20), a guide rod (22) is fixedly connected to the protective cover (6), and the guide rod (22) is slidably connected to the movable block (20).

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