Boehmite slurry iron removal equipment

Abstract

The invention discloses boehmite slurry iron removal equipment, and belongs to the technical field of iron removal equipment, the boehmite slurry iron removal equipment comprises an iron removal box, a mounting cavity is formed in the iron removal box, a feeding pipe is arranged at the bottom of the iron removal box, a discharging pipe is arranged at the top of the iron removal box, and a mounting frame is arranged in the mounting cavity; a foldable adsorption layer is arranged on the mounting frame, the adsorption layer can adsorb scrap iron in a solution, an unfolding assembly used for driving the adsorption layer to be unfolded is arranged on the mounting frame, and a positive electrode electromagnet and a negative electrode electromagnet are arranged on the two sides of the mounting cavity correspondingly; the other two sides of the mounting cavity are each provided with a water inlet pipe used for conveying a cleaning agent, each water inlet pipe is provided with a water inlet valve, the feeding pipe is connected with a water outlet pipe, the feeding pipe is provided with a feeding valve, and the water outlet pipe is provided with a water outlet valve. The magnetic impurities on the adsorption layer can be flushed, the cleaning efficiency is high, and the cleaning effect is good.

Description

Technical Field

[0001] The present application relates to the technical field of iron removal equipment, and in particular to a boehmite slurry iron removal equipment. Background Art

[0002] Boehmite has important applications in the battery field (especially lithium-ion batteries), mainly as a high-performance coating material and functional additive. When used as a diaphragm coating material, boehmite is coated on the diaphragm surface, which can improve the thermal stability of the diaphragm and prevent high-temperature shrinkage from causing battery short circuits. Its porous structure also enhances the wettability of the electrolyte.

[0003] Magnetic foreign matter in lithium batteries can cause local short circuits or accelerate electrolyte decomposition, affecting battery cycle life and safety. Therefore, strict handling of magnetic foreign matter is essential during boehmite preparation to ensure the yield and safety of the final lithium battery.

[0004] In the prior art, a positive electromagnet and a negative electromagnet are provided in conjunction with a filter device to filter the solution. The magnetic field generated by the positive electromagnet and the negative electromagnet can filter the iron filings in the solution. However, after the filter device adsorbs the iron filings, the filter device needs to be dismantled and cleaned, and the cleaning efficiency is low. Summary of the Invention

[0005] In order to improve the problem of low cleaning efficiency of the filter device, the present application provides a boehmite slurry iron removal device.

[0006] The boehmite slurry iron removal equipment provided in this application adopts the following technical solution: A boehmite slurry iron removal device includes an iron removal box, an installation cavity is provided in the iron removal box, a feed pipe is provided at the bottom of the iron removal box, a discharge pipe is provided at the top of the iron removal box, a mounting frame is provided in the installation cavity, a foldable adsorption layer is provided on the mounting frame, the adsorption layer can adsorb iron filings in the solution, an expansion component for driving the adsorption layer to expand is provided on the mounting frame, a positive electromagnet and a negative electromagnet are respectively provided on both sides of the installation cavity, a water inlet pipe for conveying a cleaning agent is provided on the other two sides of the installation cavity, a water inlet valve is provided on the water inlet pipe, a water outlet pipe is connected to the feed pipe, a feed valve is provided on the feed pipe, and a water outlet valve is provided on the water outlet pipe.

[0007] By adopting the above technical solution, the feed valve is opened, and the boehmite slurry is transported to the installation cavity through the feed pipe. An electromagnetic field is formed between the positive electromagnet and the negative electromagnet. The adsorption layer filters and adsorbs the magnetic impurities in the boehmite slurry, thereby removing the magnetic impurities in the boehmite slurry. The magnetic impurities remain on the adsorption layer. When it is necessary to clean the magnetic material on the adsorption layer, the feed valve is first closed, and the positive electromagnet and the negative electromagnet are powered off. Then, the water inlet valve and the water outlet valve are opened, and the adsorption layer is expanded using the expansion component. The cleaning agent is poured into the installation cavity through the water inlet pipe. The cleaning agent flushes the magnetic impurities on the adsorption layer, so that the magnetic impurities flow out through the water outlet pipe. The cleaning efficiency is high and the cleaning effect is good.

[0008] Preferably, the mounting frame includes two mounting plates, and several groups of support members are arranged vertically between the two mounting plates. The support members include two support rods parallel to each other, and the two support rods can move toward each other, and the adsorption layer bypasses the support rods from top to bottom.

[0009] By adopting the above technical solution, the adsorption layer forms a folded adsorption layer after passing through the support rod in sequence, and screens the magnetic impurities in the boehmite slurry layer by layer, so that the adsorption layer can completely remove the magnetic impurities.

[0010] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip, and the toothed connecting strip is connected with said toothed connecting strip to form a bottom surface.

[0011] By adopting the above technical solution, the driving block is moved downward, and the driving block drives the moving block to move downward synchronously through connecting rod 1 and connecting rod 2, thereby driving the two support rods at the same height to approach each other, thereby expanding the adsorption layer to facilitate cleaning of the magnetic impurities on the adsorption layer.

[0012] Preferably, the driving member includes a driving cylinder fixed in the mounting plate, a connecting block is fixed to the bottom end of the piston rod of the driving cylinder, and the connecting block is fixedly connected to the driving block.

[0013] By adopting the above technical solution, the driving cylinder is started, the driving cylinder drives the connecting block to move downward, and the connecting block drives the driving block to move downward synchronously.

[0014] Preferably, a movable groove is provided on the side of the mounting plate, and the movable block slides and cooperates with the mounting plate vertically through the movable groove. Slide blocks are fixed on both sides of the movable block respectively, and a sliding groove is provided on the inner wall of the movable groove. The slider slides and cooperates with the mounting plate vertically through the sliding groove.

[0015] By adopting the above technical solution, the slider moves vertically in the slide groove, thereby ensuring that the moving block slides vertically in the moving groove.

[0016] Preferably, the mounting bracket includes a mounting frame, the top surface of the mounting plate is fixedly connected to the bottom surface of the mounting frame, and a filter layer is fixed to the inner circumference of the mounting frame.

[0017] By adopting the above technical solution, the filter layer in the installation frame can filter and remove magnetic substances, thereby ensuring the demagnetization effect of the boehmite slurry.

[0018] Preferably, the top surface of the iron removal box is provided with an installation groove connected to the installation cavity, the installation frame can be placed in the installation groove, and the opposite inner sides of the installation cavity are respectively provided with clearance grooves, and the installation plate can be inserted into the clearance grooves.

[0019] By adopting the above technical solution, the mounting plate is inserted into the clearance groove so that the side surface of the mounting plate is coplanar with the inner wall of the mounting cavity, so that the adsorption layer can fit the inner wall of the mounting cavity.

[0020] Preferably, a cover plate is installed in the installation groove, the bottom surface of the cover plate abuts against the top surface of the installation frame, the discharge pipe is fixedly connected to the cover plate, and the cover plate is fixedly connected to the iron removal box by bolts.

[0021] By adopting the above technical solution, the cover plate is fixedly connected to the discharge pipe, so that the mounting frame can be replaced after the cover plate and the discharge pipe are disassembled.

[0022] Preferably, a sealing ring is fixed to the bottom surface of the installation frame, and the bottom surface of the sealing ring abuts against the inner bottom surface of the installation groove.

[0023] By adopting the above technical solution, a sealing ring is provided on the bottom surface of the installation frame, and the sealing ring abuts against the inner bottom surface of the installation groove, so that the boehmite slurry is not easy to flow out through the gap between the installation frame and the installation groove.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Open the feed valve and deliver the boehmite slurry into the installation cavity through the feed pipe. An electromagnetic field is formed between the positive electromagnet and the negative electromagnet. The adsorption layer filters and adsorbs the magnetic impurities in the boehmite slurry, thereby removing the magnetic impurities in the boehmite slurry. The magnetic impurities remain on the adsorption layer. When it is necessary to clean the magnetic material on the adsorption layer, first close the feed valve and power off the positive and negative electromagnets. Then open the water inlet and outlet valves, expand the adsorption layer using the expansion component, and pour the cleaning agent into the installation cavity through the water inlet pipe. The cleaning agent flushes the magnetic impurities on the adsorption layer, causing the magnetic impurities to flow out through the water outlet pipe. The cleaning efficiency is high and the cleaning effect is good. 2. Move the driving block downward. The driving block drives the moving block to move downward synchronously through connecting rods 1 and 2, thereby driving the two support rods at the same height to move closer to each other, thereby expanding the adsorption layer to facilitate cleaning of magnetic impurities on the adsorption layer; 3. The adsorption layer passes around the support rod in turn to form a folded adsorption layer, which screens the magnetic impurities in the boehmite slurry layer by layer, so that the adsorption layer can completely remove the magnetic impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the boehmite slurry iron removal equipment of an embodiment of the present application.

[0026] Figure 2 This is a schematic diagram of the internal structure of the iron removal box in the boehmite slurry iron removal equipment of an embodiment of the present application.

[0027] Figure 3 It is a cross-sectional view of the iron removal box in the boehmite slurry iron removal equipment according to an embodiment of the present application.

[0028] Figure 4 It is a structural schematic diagram of the mounting frame in the boehmite slurry iron removal equipment according to an embodiment of the present application.

[0029] Figure 5 It is a schematic structural diagram of the adsorption layer in the boehmite slurry iron removal equipment of an embodiment of the present application.

[0030] Figure 6 It is a structural schematic diagram of the mounting plate in the boehmite slurry iron removal equipment according to an embodiment of the present application.

[0031] 1. Iron removal box; 11. Mounting cavity; 12. Feed pipe; 121. Feed valve; 13. Discharge pipe; 14. Positive electromagnet; 15. Negative electromagnet; 16. Water inlet pipe; 161. Water inlet valve; 17. Water outlet pipe; 171. Water outlet valve; 18. Cover plate; 2. Mounting frame; 21. Mounting plate; 22. Support member; 221. Support rod; 23. Adsorption layer; 3. Moving block; 31. Moving groove; 32. Sliding cylinder; 33. Connecting rod 1; 34. Slider; 35. Slide; 4. Limit block; 41. Fixed block; 42. Driving block; 43. Limit rod; 44. Connecting rod 2; 5. Driving cylinder; 51. Connecting block; 6. Mounting frame; 61. Filter layer; 62. Mounting groove; 63. Give way groove; 64. Sealing ring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The present application discloses a boehmite slurry iron removal device. Figure 1 and Figure 2 The boehmite slurry iron removal equipment includes an iron removal box 1, a feed pipe 12 is provided at the bottom of the iron removal box 1, and a discharge pipe 13 is provided at the top of the iron removal box 1. The feed pipe 12 is connected to a water outlet pipe 17, a feed valve 121 is provided on the feed pipe 12, and a water outlet valve 171 is provided on the water outlet pipe 17. An installation cavity 11 is provided in the iron removal box 1, and a positive electromagnet 14 and a negative electromagnet 15 are provided on both sides of the installation cavity 11 respectively. A mounting frame 2 is provided in the installation cavity 11, and a foldable adsorption layer 23 is provided on the mounting frame 2. The adsorption layer 23 can adsorb iron filings in the boehmite slurry.

[0034] Open the feed valve 121 and deliver the boehmite slurry into the installation cavity 11 through the feed pipe 12. An electromagnetic field is formed between the positive electromagnet 14 and the negative electromagnet 15. The adsorption layer 23 filters and adsorbs the magnetic impurities in the boehmite slurry, thereby removing the magnetic impurities in the boehmite slurry.

[0035] Reference Figure 2 and Figure 3 Water inlet pipes 16 for conveying cleaning agents are provided on both sides of the installation cavity 11, and water inlet valves 161 are provided on the water inlet pipes 16. When magnetic impurities remain on the adsorption layer 23 and the magnetic material on the adsorption layer 23 needs to be cleaned, the feed valve 121 is first closed, and the positive electromagnet 14 and the negative electromagnet 15 are de-energized. Then, the water inlet valve 161 and the water outlet valve 171 are opened to unfold the adsorption layer 23. The cleaning agent is poured into the installation cavity 11 through the water inlet pipe 16. The cleaning agent flushes the magnetic impurities on the adsorption layer 23, causing the magnetic impurities to flow out through the water outlet pipe 17. This has high cleaning efficiency and good cleaning effect.

[0036] Reference Figure 3 and Figure 4 The mounting frame 2 includes a horizontally arranged mounting frame 6, and a filter layer 61 is fixed to the inner circumference of the mounting frame 6. The top surface of the iron removal box 1 is provided with a mounting groove 62 connected to the mounting cavity 11, and the mounting frame 6 can be placed in the mounting groove 62. A sealing ring 64 is fixed to the bottom surface of the mounting frame 6, and the bottom surface of the sealing ring 64 abuts against the inner bottom surface of the mounting groove 62. A cover plate 18 is installed in the mounting groove 62, and the bottom surface of the cover plate 18 abuts against the top surface of the mounting frame 6. The discharge pipe 13 is fixedly connected to the cover plate 18, and the cover plate 18 is fixedly connected to the iron removal box 1 by bolts.

[0037] Reference Figure 3 and Figure 4 Two vertically arranged mounting plates 21 are fixed to the bottom surface of the mounting frame 6. The mounting plates 21 and the water inlet pipe 16 are located on different sides of the iron removal box 1. The mounting frame 2 includes two mounting plates 21. The opposite inner sides of the mounting cavity 11 are respectively provided with clearance grooves 63, and the mounting plates 21 can be inserted into the clearance grooves 63. Several groups of support members 22 are arranged vertically between the two mounting plates 21. The support members 22 include two mutually parallel support rods 221. The two support rods 221 can move toward each other, and the adsorption layer 23 bypasses the support rods 221 from top to bottom.

[0038] The adsorption layer 23 sequentially passes around the support rods 221 to form a folded adsorption layer 23 , which screens the magnetic impurities in the boehmite slurry layer by layer, so that the adsorption layer 23 can completely remove the magnetic impurities.

[0039] Reference Figure 5 and Figure 6 The two mounting plates 21 are each provided with a movable groove 31 on the opposing inner sides thereof, through which the movable block 3 is mounted for vertical sliding movement. A slider 34 is fixed to each side of the movable block 3. The inner wall of the movable groove 31 is provided with a slide groove 35, through which the slider 34 slides vertically with the mounting plate 21. A sliding cylinder 32 is mounted on the side of the movable block 3. Two connecting rods 33 are sleeved around the outer circumference of the sliding cylinder 32, and the connecting rods 33 are rotatably connected to the sliding cylinder 32. The end of the connecting rod 33, remote from the sliding cylinder 32, is sleeved around the outer circumference of the support rod 221, and the connecting rods 33 are rotatably connected to the support rod 221.

[0040] Reference Figure 4 and Figure 6, the top and bottom of the mounting plate 21 are respectively installed with limit blocks 4, and the moving block 3 is located between the two limit blocks 4. A limit rod 43 is installed on the side of the limit block 4, and a connecting rod 2 44 is sleeved on the outer periphery of the limit rod 43. The connecting rod 2 44 is rotatably connected to the limit rod 43, and the two ends of the adsorption layer 23 are respectively fixedly connected to the limit rod 43. The other end of the connecting rod 2 44 is sleeved on the outer periphery of the adjacent support rod 221, and the connecting rod 2 44 is rotatably connected to the support rod 221. The length of the connecting rod 2 44 is equal to half the length of the connecting rod 1 33. The two limit blocks 4 are respectively a fixed block 41 fixed to the top of the mounting plate 21 and a driving block 42 slidably installed on the mounting plate 21. A driving cylinder 5 is installed in the mounting plate 21. The bottom end of the piston rod of the driving cylinder 5 is fixed with a connecting block 51, and the connecting block 51 is fixedly connected to the driving block 42.

[0041] Start the driving cylinder 5, which drives the connecting block 51 to move downward. The connecting block 51 drives the driving block 42 to move downward synchronously. The driving block 42 drives the moving block 3 to move downward synchronously through the connecting rod 1 33 and the connecting rod 2 44, thereby driving the two support rods 221 at the same height to approach each other, thereby expanding the adsorption layer 23 to facilitate cleaning of the magnetic impurities on the adsorption layer 23.

[0042] The implementation principle of the boehmite slurry iron removal equipment in the embodiment of the present application is: open the feed valve 121, and transport the boehmite slurry into the installation cavity 11 through the feed pipe 12. An electromagnetic field is formed between the positive electromagnet 14 and the negative electromagnet 15. The adsorption layer 23 filters and adsorbs the magnetic impurities in the boehmite slurry, thereby removing the magnetic impurities in the boehmite slurry. The magnetic impurities remain on the adsorption layer 23. When it is necessary to clean the magnetic material on the adsorption layer 23, first close the feed valve 121, and cut off the power to the positive electromagnet 14 and the negative electromagnet 15. Then open the water inlet valve 161 and the water outlet valve 171, expand the adsorption layer 23, and pour the cleaning agent into the installation cavity 11 through the water inlet pipe 16. The cleaning agent flushes the magnetic impurities on the adsorption layer 23, so that the magnetic impurities flow out through the water outlet pipe 17. The cleaning efficiency is high and the cleaning effect is good.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A boehmite slurry iron removal device, characterized in that: The invention comprises an iron removal box (1), wherein an installation cavity (11) is provided in the iron removal box (1), a feed pipe (12) is provided at the bottom of the iron removal box (1), a discharge pipe (13) is provided at the top of the iron removal box (1), a mounting frame (2) is provided in the installation cavity (11), a foldable adsorption layer (23) is provided on the mounting frame (2), the adsorption layer (23) can adsorb iron filings in the solution, and a device for driving the adsorption layer (23) to unfold is provided on the mounting frame (2). The invention relates to an expansion component, wherein a positive electromagnet (14) and a negative electromagnet (15) are respectively provided on both sides of the installation cavity (11), and a water inlet pipe (16) for conveying a cleaning agent is provided on the other two sides of the installation cavity (11), and a water inlet valve (161) is provided on the water inlet pipe (16), and a water outlet pipe (17) is connected to the feed pipe (12), and a feed valve (121) is provided on the feed pipe (12), and a water outlet valve (171) is provided on the water outlet pipe (17).

2. The boehmite slurry iron removal device according to claim 1, characterized in that: The mounting frame (2) comprises two mounting plates (21), and a plurality of groups of support members (22) are arranged vertically spaced apart between the two mounting plates (21). The support members (22) comprise two mutually parallel support rods (221), and the two support rods (221) are capable of moving toward each other, and the adsorption layer (23) passes around the support rods (221) from top to bottom.

3. The boehmite slurry iron removal device according to claim 2, characterized in that: The unfolding assembly includes a plurality of moving blocks (3), the moving blocks (3) are mounted on the mounting plate (21) in a vertical sliding manner, a sliding cylinder (32) is mounted on the side of the moving block (3), two connecting rods (33) are sleeved on the outer periphery of the sliding cylinder (32), the connecting rod (33) is rotatably connected to the sliding cylinder (32), one end of the connecting rod (33) away from the sliding cylinder (32) is sleeved on the outer periphery of the support rod (221), the connecting rod (33) is rotatably connected to the support rod (221), the top and bottom of the mounting plate (21) are respectively mounted with limit blocks (4), the moving block (3) is located between the two limit blocks (4), and a limit rod (43) is mounted on the side of the limit block (4). The two ends of the adsorption layer (23) are respectively fixedly connected to the limit rod (43); the outer periphery of the limit rod (43) is provided with a second connecting rod (44); the second connecting rod (44) is rotatably connected to the limit rod (43); the other end of the second connecting rod (44) is provided on the outer periphery of the adjacent support rod (221); the second connecting rod (44) is rotatably connected to the support rod (221); the length of the second connecting rod (44) is equal to half the length of the first connecting rod (33); the two limit blocks (4) are respectively a fixed block (41) fixed to the top end of the mounting plate (21) and a driving block (42) slidably installed on the mounting plate (21); the mounting plate (21) is provided with a driving member for driving the driving block (42) to move vertically.

4. The boehmite slurry iron removal device according to claim 3, characterized in that: The driving member comprises a driving cylinder (5) fixed in the mounting plate (21), a connecting block (51) is fixed to the bottom end of the piston rod of the driving cylinder (5), and the connecting block (51) is fixedly connected to the driving block (42).

5. The boehmite slurry iron removal device according to claim 3, characterized in that: A movable groove (31) is provided on the side of the mounting plate (21), and the movable block (3) is slidably engaged with the mounting plate (21) in the vertical direction through the movable groove (31). Slide blocks (34) are fixed on both sides of the movable block (3), and a sliding groove (35) is provided on the inner wall of the movable groove (31). The sliding block (34) is slidably engaged with the mounting plate (21) in the vertical direction through the sliding groove (35).

6. The boehmite slurry iron removal device according to claim 2, characterized in that: The mounting frame (2) comprises a mounting frame (6), the top surface of the mounting plate (21) is fixedly connected to the bottom surface of the mounting frame (6), and a filter layer (61) is fixed to the inner circumference of the mounting frame (6).

7. The boehmite slurry iron removal device according to claim 6, characterized in that: The top surface of the iron removal box (1) is provided with an installation groove (62) connected to the installation cavity (11), and the installation frame (6) can be placed in the installation groove (62). The relative inner sides of the installation cavity (11) are respectively provided with clearance grooves (63), and the installation plate (21) can be inserted into the clearance grooves (63).

8. The boehmite slurry iron removal device according to claim 7, characterized in that: A cover plate (18) is installed in the installation groove (62), the bottom surface of the cover plate (18) is in contact with the top surface of the installation frame (6), the discharge pipe (13) is fixedly connected to the cover plate (18), and the cover plate (18) is fixedly connected to the iron removal box (1) by bolts.

9. The boehmite slurry iron removal device according to claim 7, characterized in that: A sealing ring (64) is fixed to the bottom surface of the installation frame (6), and the bottom surface of the sealing ring (64) abuts against the inner bottom surface of the installation groove (62).

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