An automatic treatment device for polishing wastewater from electrolytic copper foil production.

Abstract

This invention relates to the field of wastewater treatment technology, specifically to an automatic treatment device for polishing wastewater from electrolytic copper foil production. The device includes a copper scrap filtration assembly and a sedimentation assembly. The copper scrap filtration assembly comprises a primary support frame, a water tank, and a circulating filtration mechanism. The circulating filtration mechanism includes an annular filter cloth, a rotating roller assembly, a filter cloth cleaning component, and a discharge plate. The sedimentation assembly includes a secondary support frame, a sedimentation tank, a lifting hopper, and a stirring component. The lifting hopper includes an annular shell and a lifting support plate. The annular shell has several sets of openings, each with an arc-shaped filter plate. The inner wall of the sedimentation tank has baffle rings and several sets of blocking blocks, and the outer wall at the lower end of the sedimentation tank has several sets of drain outlets. During the filtration process, the annular filter cloth rotates, carrying copper scraps to the filter cloth cleaning component. The filter cloth cleaning component removes the copper scraps from the annular filter cloth, enabling the annular filter cloth to self-clean and thus achieving wastewater circulation filtration.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an automatic treatment device for polishing wastewater from electrolytic copper foil production. Background Technology

[0002] Electrolytic copper foil is an important material that is pressed onto an insulating substrate to form a copper-clad laminate, and then etched to form a printed circuit board that can assemble electronic components and transmit electrical signals.

[0003] In the production process of electrolytic copper foil, the electrolytic copper foil needs to be polished. During the polishing process, copper shavings are generated and flowed away with the cooling water. Ultimately, wastewater containing copper shavings is generated during polishing. The existing Chinese patent with publication number CN112723632B discloses a copper-containing wastewater treatment device for resource recycling to treat the wastewater. However, the above-mentioned patent still has the following defects:

[0004] Firstly, the wastewater contains not only water-soluble impurities but also solid copper shavings. The aforementioned patent can only remove water-soluble impurities but cannot remove solid copper shavings. Furthermore, the failure to remove solid copper shavings will affect the precipitation of impurities in the wastewater.

[0005] Secondly, after impurities in the wastewater precipitate out, the precipitated impurities will settle at the bottom of the first water tank. When the impurities are discharged later, the liquid water and impurities will be discharged together from the first water tank. After that, the impurities in the mixed water need to be filtered, which not only increases the treatment process, but also if there are too many precipitated impurities, the impurities may block the drain pipe on the first water tank, making it difficult for subsequent water and impurities to be discharged.

[0006] Thirdly, the separation of water and impurities in the transmission usually involves first pumping out the water from the sedimentation tank and then discharging the impurities. To prevent impurities from being pumped out along with the water, the pumping pipe does not extend into the bottom of the sedimentation tank during pumping. This results in the water in the sedimentation tank not being completely pumped out. Furthermore, once the water in the sedimentation tank is pumped out, the impurities, which are no longer driven by the water flow, are difficult to discharge on their own and require manual removal of the impurities from the sedimentation tank, increasing labor costs.

[0007] Therefore, it is necessary to provide an automatic treatment device for polishing wastewater from electrolytic copper foil production to address the above-mentioned problems. Summary of the Invention

[0008] Therefore, it is necessary to provide an automatic treatment device for polishing wastewater from electrolytic copper foil production, addressing the existing technical problems.

[0009] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows: an automatic treatment device for polishing wastewater from electrolytic copper foil production, comprising a copper scrap filtration assembly and a precipitation assembly. The copper scrap filtration assembly includes a first support frame, a water tank, and a circulating filtration mechanism. The water tank is fixed on the first support frame, and the top of the water tank is an open structure. The circulating filtration mechanism includes an annular filter cloth, a rotating roller assembly, a filter cloth cleaning component, and a discharge plate. The rotating roller assembly is arranged in a matrix on the outer wall of the water tank. The annular filter cloth is sleeved on the rotating roller assembly, and the annular filter cloth covers the opening at the top of the water tank. The filter cloth cleaning component is located on the first support frame. The discharge plate is inclined and located below the water tank. Passing between the filter cloth cleaning component and the discharge plate, the sedimentation assembly includes a second support frame, a sedimentation tank, a lifting hopper, and a stirring component. The sedimentation tank is vertically fixed on the first support frame. The lifting hopper includes an annular shell and a lifting support plate. The bottom of the sedimentation tank is open. The lifting support plate moves the annular shell upwards and extends it into the sedimentation tank from the bottom. The stirring component is located inside the sedimentation tank. The annular shell has several sets of openings, each with an arc-shaped filter plate. The inner wall of the sedimentation tank is formed with a retaining ring and several sets of blocking blocks. The retaining ring is used to limit the downward stroke of the annular shell. Each set of blocking blocks seals the corresponding arc-shaped filter plate. Several sets of drain outlets are opened on the outer wall at the lower end of the sedimentation tank.

[0010] Furthermore, the rotating roller assembly includes four rotating rollers, which are arranged in pairs on both sides of the water tank. Each rotating roller is horizontal, and the axial direction of each rotating roller is parallel to the width direction of the water tank. Each rotating roller has a No. 1 bearing at both ends, and each No. 1 bearing is fixedly connected to the outer wall of the water tank. The annular filter cloth is sleeved on the four rotating rollers.

[0011] Furthermore, the filter cloth cleaning component includes a scraper and an air jet pipe. The scraper is fixed to the first support frame in an inclined state and is located above the material drop plate. The highest end of the scraper is in contact with the annular filter cloth, and the lowest end of the scraper faces the material drop plate. The air jet pipe includes an air intake main pipe and several nozzles. The air intake main pipe is fixed horizontally to the bottom of the water tank. One end of the air intake main pipe is a closed structure, and the other end of the air intake main pipe is an open structure. Several nozzles are equidistantly distributed along the axial direction of the air intake main pipe. Each nozzle is connected to the air intake main pipe, and each nozzle is in an inclined state.

[0012] Furthermore, an elastic upper support is provided below the water tank. The elastic upper support includes a top roller and two sets of elastic top seats. The top roller is parallel to the rotating roller. The two sets of elastic top seats are symmetrically located at both ends of the top roller. Each set of elastic top seats includes a strip-shaped fixed seat, a slider, and several No. 1 springs. The strip-shaped fixed seat is fixedly connected to the No. 1 support frame. The strip-shaped fixed seat has a vertical strip-shaped groove. The slider slides in the strip-shaped groove. Several No. 1 springs are fixedly located in the strip-shaped groove. Each No. 1 spring is vertical, and both ends of each No. 1 spring abut against the inner wall of the slider and the strip-shaped fixed seat, respectively. The two ends of the top roller are rotatably connected to the two sliders, respectively.

[0013] Furthermore, two sets of symmetrical No. 1 guide plates are fixed inside the water tank. Each No. 1 guide plate is inclined, with the highest point of each No. 1 guide plate facing the top of the water tank and the lowest point of each No. 1 guide plate extending downward into the water tank. A No. 2 guide plate is formed between the two No. 1 guide plates. A water guide pipe is provided on one side of the outer wall of the water tank and is connected to the upper end of the sedimentation tank.

[0014] Furthermore, a No. 1 convex ring is formed on the inner wall of the lower end of the annular shell. The lifting plate is circular, and the peripheral wall of the lifting plate fits against the inner wall of the annular shell. The outer edge of the lifting plate abuts against the No. 1 convex ring. Two long-shaft hydraulic cylinders in a symmetrical state are provided below the sedimentation tank. Each long-shaft hydraulic cylinder is vertically connected to the No. 2 support frame, and the output end of each long-shaft hydraulic cylinder is fixedly connected to the bottom of the lifting plate.

[0015] Furthermore, the lower end of the annular shell is formed with a vertically downward extending retaining ring, and the lower end of the sedimentation tank is formed with an annular tail ring. The inner diameter of the annular tail ring is smaller than the inner diameter of the sedimentation tank. The outer diameters of the annular shell and the retaining ring are consistent with the inner diameter of the annular tail ring. Several sets of drain outlets are evenly arranged on the annular tail ring along the circumference. Each set of drain outlets is formed with a downwardly inclined water guide groove. The top of the annular shell is formed with a No. 2 convex ring. Several notches are opened on the No. 2 convex ring. The structure of the retaining ring is consistent with that of the No. 2 convex ring. Each notch is used for the insertion of the corresponding plug block.

[0016] Furthermore, the top of the lifting pallet is formed with a conical platform that rises upwards, and the first support frame is equipped with an annular support plate located below the sedimentation tank. An annular collection trough is fixed on the annular support plate, and a downwardly inclined discharge trough is opened on the annular collection trough.

[0017] Furthermore, the agitator includes a rotating shaft, a scraper, and several agitators. The rotating shaft is vertically downward and rotatably connected to the conical platform. Several agitators are located on the upper half of the rotating shaft and are equidistantly distributed along the axial direction of the rotating shaft. Each agitator is fixedly connected to the rotating shaft. The scraper is located at the lower end of the rotating shaft and is fixedly connected to the rotating shaft. A first drive unit is located at the top of the sedimentation tank, and a second drive unit is located below the sedimentation tank. The first and second drive units have the same structure, both including a square insert rod and a motor. The square insert rod is vertical, and the motor is connected to the square insert rod. Square slots are provided at both ends of the rotating shaft.

[0018] Furthermore, both the first and second drive components also include elastic mounting seats. Each elastic mounting seat comprises a cylindrical shell, a second spring, and a second shaft seat. The cylindrical shell is vertical, with one end open and a sealing cover fixedly mounted on the opening. One end of a square insert slides within the cylindrical shell, while the other end protrudes from it. A stop is formed on the end of the square insert that extends into the cylindrical shell. The second spring is fixedly mounted within the cylindrical shell, with both ends abutting against the sealing cover and the stop, respectively. A pivot pin is formed on the sealing cover and connected to the second shaft seat. The second shaft seat and motor in the first drive component are both fixed to the top of the sedimentation tank, and the motor in the first drive component is connected to the corresponding pivot pin. The sealing cover in the first drive component faces upwards. The second shaft seat and motor in the second drive component are both fixed to an annular support plate, and the motor in the second drive component is connected to the corresponding pivot pin. The sealing cover in the second drive component faces downwards.

[0019] The beneficial effects of this invention compared to the prior art are:

[0020] Firstly, this device can filter copper shavings in wastewater through a copper shavings filtration assembly. During the filtration process, the annular filter cloth will rotate, and then the annular filter cloth will carry the copper shavings to the filter cloth cleaning component. The filter cloth cleaning component will remove the copper shavings from the annular filter cloth, thereby enabling the annular filter cloth to self-clean and thus achieve wastewater circulation filtration.

[0021] Secondly, this device uses a sedimentation and precipitation component to precipitate impurities in the wastewater. After the impurities are precipitated, they fall into the lifting bucket. The lifting bucket then descends. When the annular shell in the lifting bucket passes the drain outlet on the sedimentation tank, the water in the sedimentation tank flows out through the arc-shaped filter plate on the annular shell, while the impurities are blocked by the arc-shaped filter plate, thus achieving the separation of water and impurities.

[0022] Thirdly, after the water in the sedimentation tank has drained, the lifting pallet will continue to descend. Subsequently, the annular shell will be suspended due to the obstruction of the baffle ring inside the sedimentation tank, and the lifting pallet will continue to descend and separate from the annular shell. After the lifting pallet separates from the annular shell, the scraper in the agitator will scrape off the impurities on the lifting pallet, and finally the impurities will fall into the annular collection trough. In summary, the separation of the lifting pallet from the annular shell makes it easier to remove impurities, thereby improving the collection efficiency of impurities. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a top view of the present invention;

[0025] Figure 3 yes Figure 2Sectional view along line AA;

[0026] Figure 4 yes Figure 3 A magnified view of the area indicated by A1 in the diagram;

[0027] Figure 5 yes Figure 2 Sectional view along line BB;

[0028] Figure 6 yes Figure 5 The enlarged view of the area indicated by A2 in the diagram;

[0029] Figure 7 This is a three-dimensional structural diagram of the circulating filtration mechanism of the present invention;

[0030] Figure 8 yes Figure 7 The enlarged view of the area indicated in A3;

[0031] Figure 9 This is a three-dimensional structural diagram of the precipitation component of the present invention. Figure 1 ;

[0032] Figure 10 This is a three-dimensional structural diagram of the precipitation component of the present invention. Figure 2 ;

[0033] Figure 11 This is a top view of the precipitation component of the present invention;

[0034] Figure 12 yes Figure 11 Sectional view along line CC;

[0035] Figure 13 yes Figure 12 The enlarged view shown in section A4;

[0036] Figure 14 yes Figure 12 The enlarged view of the area indicated in A5;

[0037] Figure 15 yes Figure 11 Sectional view along line DD;

[0038] Figure 16 yes Figure 15 The enlarged view of the area indicated by A6 in the middle;

[0039] Figure 17 This is a three-dimensional structural diagram of the lifting bucket of the present invention;

[0040] Figure 18 This is an exploded three-dimensional structural view of the lifting bucket of the present invention;

[0041] Figure 19 This is a three-dimensional structural schematic diagram of the annular shell of the present invention;

[0042] Figure 20 This is a three-dimensional structural schematic diagram of the first driving component of the present invention;

[0043] Figure 21 This is a three-dimensional structural diagram of the sedimentation tank of the present invention.

[0044] The diagram is labeled as follows: 1. Copper shavings filter assembly; 2. Sedimentation assembly; 3. Support frame 1; 4. Water tank; 5. Annular filter cloth; 6. Feed plate; 7. Support frame 2; 8. Sedimentation tank; 9. Lifting hopper; 10. Annular shell; 11. Lifting support plate; 12. Through port; 13. Arc-shaped filter plate; 14. Baffle ring; 15. Block; 16. Drain outlet; 17. Rotary roller; 18. Shaft seat 1; 19. Scraper; 20. Main air inlet pipe; 21. Nozzle; 22. Top roller; 23. Strip-shaped fixed seat; 24. Slider; 25. Spring 1; 26. Strip-shaped chute; 27. Guide plate 1; 28. 29. No. 2 guide plate; 30. Water guide pipe; 31. No. 1 convex ring; 32. Long shaft hydraulic cylinder; 33. Retaining ring; 34. Annular tail ring; 35. Water guide groove; 36. No. 2 convex ring; 37. Notch; 38. Conical platform; 39. Annular support plate; 40. Annular collection trough; 41. Discharge trough; 42. Rotating shaft; 43. Scraper; 44. Agitator; 45. No. 1 driving component; 46. No. 2 driving component; 47. Square insert rod; 48. Motor; 49. Square slot; 50. Columnar shell; 51. No. 2 spring; 52. No. 2 shaft seat; 53. Sealing cover plate; 54. Stop block; 55. Turning pin. Detailed Implementation

[0045] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0046] refer to Figures 1 to 21 An automatic treatment device for polishing wastewater from electrolytic copper foil production is shown, comprising a copper scrap filtration assembly 1 and a sedimentation and precipitation assembly 2. The copper scrap filtration assembly 1 includes a primary support frame 3, a water tank 4, and a circulating filtration mechanism. The water tank 4 is fixed to the primary support frame 3, and its top is open. The circulating filtration mechanism includes an annular filter cloth 5, a rotating roller assembly, a filter cloth cleaning component, and a discharge plate 6. The rotating roller assembly is arranged in a matrix on the outer wall of the water tank 4. The annular filter cloth 5 is fitted onto the rotating roller assembly, covering the opening at the top of the water tank 4. The filter cloth cleaning component is located on the primary support frame 3. The discharge plate 6 is inclined and positioned below the water tank 4, with the annular filter cloth 5 passing between the filter cloth cleaning component and the discharge plate 6. The sedimentation and precipitation assembly 2 includes a secondary support frame 7, a sedimentation tank 8, a lifting hopper 9, and a stirring component. The sedimentation tank 8 (e.g., Figure 10As shown, the lifting bucket 9 is vertically fixed on the first support frame 3, and includes an annular shell 10 and a lifting support plate 11 (as shown). Figure 12 As shown), the bottom of the sedimentation tank 8 is open. The lifting plate 11 moves the annular shell 10 upwards, extending it into the sedimentation tank 8 from the bottom. The stirring element is located inside the sedimentation tank 8. The annular shell 10 has several sets of openings 12 (as shown). Figure 19 As shown), each set of inlets 12 is equipped with an arc-shaped filter plate 13, and the inner wall of the sedimentation tank 8 is formed with a retaining ring 14 and several sets of blocking blocks 15. The retaining ring 14 is used to limit the downward stroke of the annular shell 10 (e.g., Figure 14 As shown), each set of blocking blocks 15 seals the corresponding arc-shaped filter plate 13 (as shown). Figure 16 As shown), several sets of drain outlets 16 are provided on the outer wall of the lower end of the sedimentation tank 8 (as shown). Figure 21 (As shown).

[0047] The wastewater generated after polishing copper foil contains solid copper shavings and water-soluble impurities. This device first filters out the solid copper shavings from the wastewater using a copper shavings filter assembly 1, and then precipitates out the water-soluble impurities using a sedimentation and precipitation assembly 2. The specific operation process is as follows: Wastewater is poured into water tank 4 through the opening at the top of water tank 4. Before entering water tank 4, the wastewater passes through an annular filter cloth 5. A rotating roller assembly on the outer wall of water tank 4 drives the annular filter cloth 5 to rotate. When copper shavings fall onto the annular filter cloth 5, the copper shavings in the wastewater are blocked by the annular filter cloth 5, and the water passes through the annular filter cloth 5 into water tank 4. As the filter cloth rotates, the copper shavings falling on the annular filter cloth 5 will move downwards to the filter cloth cleaning component. The filter cloth cleaning component will remove the copper shavings from the annular filter cloth 5. The copper shavings that have detached from the annular filter cloth 5 will fall directly onto the discharge plate 6. Finally, the discharge plate 6 will concentrate and guide the copper shavings to the designated collection point. In actual use, a collection box for collecting copper shavings (not shown in the figure) can be installed at the end of the discharge plate 6. The cleaned part of the annular filter cloth 5 will rotate again to the top of the water tank 4, thereby realizing the circulation filtration of copper shavings in the wastewater. After that, the wastewater in the water tank 4 will be introduced into the sedimentation tank 8 for the sedimentation and precipitation of impurities.

[0048] Before the wastewater enters the sedimentation tank 8, the lifting plate 11 moves upward, causing the annular shell 10 to extend into the sedimentation tank 8. During this process, the lifting plate 11 moves upward past several sets of drain outlets 16. The lifting plate 11 has a fixed lifting stroke set in advance. When the lifting plate 11 reaches its stop, it seals the bottom of the sedimentation tank 8. At this time, each set of blocking blocks 15 on the inner wall of the sedimentation tank 8 seals the corresponding arc-shaped filter plate 13. When the wastewater enters the sedimentation tank 8, because the lifting plate 11 seals the opening at the bottom of the sedimentation tank 8, and the lifting plate 11 is located in several sets of drain outlets 16, the wastewater is effectively blocked. Above drain outlet 16, the wastewater cannot be discharged at this time. A dosing port (not shown in the figure) is machined on the outer wall of the upper part of the sedimentation tank 8. After all the wastewater in the water tank 4 is introduced into the sedimentation tank 8, flocculant is added into the sedimentation tank 8 through the dosing port. Then, the agitator inside the sedimentation tank 8 begins to agitate the wastewater, thereby promoting the mixing of the wastewater and flocculant. As the agitator continues to agitate, impurities in the wastewater will gradually precipitate out. Afterward, the agitator stops rotating, and the precipitated impurities in the wastewater are allowed to settle. At this time, the heavier impurities will gradually settle out. The sediment settles into the lifting hopper 9. After a period of settling, the lifting pallet 11 descends. During this process, the annular shell 10 descends along with the lifting pallet 11 due to gravity. At this time, the arc-shaped filter plate 13 on the annular shell 10 gradually separates from the blockage 15. After separating from the blockage 15, the arc-shaped filter plate 13 descends directly to the corresponding drain outlet 16. When the arc-shaped filter plate 13 aligns with the drain outlet 16, the lifting pallet 11 stops descending. At this time, the wastewater in the sedimentation tank 8 will be discharged through the arc-shaped filter plate 13 from the drain outlet 16. During this process, impurities are blocked by the arc-shaped filter plate 13, preventing... Impurities and water are discharged from the drain outlet 16. After all the wastewater in the sedimentation tank 8 is discharged, most of the impurities will accumulate on the top of the lifting plate 11, and a small amount of impurities will adhere to the inner wall of the annular shell 10. Then the lifting plate 11 will descend again. When the annular shell 10 comes into contact with the retaining ring 14, the annular shell 10 will stop descending. As the lifting plate 11 continues to descend, it will separate from the annular shell 10 and descend outside the sedimentation tank 8. After that, the impurities on the lifting plate 11 and the annular shell 10 can be cleaned.

[0049] To demonstrate the specific structure of the rotating roller assembly, the following features were incorporated:

[0050] The rotating roller assembly includes four rotating rollers 17 (e.g. Figure 7 As shown, four rotating rollers 17 are arranged in pairs on both sides of the water tank 4. Each rotating roller 17 is horizontal, and the axial direction of each rotating roller 17 is parallel to the width direction of the water tank 4. Each rotating roller 17 has a No. 1 shaft seat 18 at both ends, and each No. 1 shaft seat 18 is fixedly connected to the outer wall of the water tank 4. The annular filter cloth 5 is sleeved on the four rotating rollers 17.

[0051] In actual use, a geared motor (not shown in the figure) is provided on the side of one of the rotating rollers 17 to drive its rotation. When the geared motor is started, it drives the corresponding rotating roller 17 to rotate. The rotating roller 17 drives the annular filter cloth 5 to rotate. When the annular filter cloth 5 rotates, the remaining rotating rollers 17 will rotate together. When the annular filter cloth 5 is fitted onto the four rotating rollers 17, the annular filter cloth 5 will also be fitted onto the outside of the water tank 4 (e.g., Figure 3 As shown, when the annular filter cloth 5 rotates, it will pass through the top, side wall, and bottom of the water tank 4 in sequence. When the annular filter cloth 5 passes the top of the water tank 4, it will intercept the copper shavings in the wastewater and move them along with it. When the annular filter cloth 5 passes the side wall and bottom of the water tank 4, the filter cloth cleaning component will remove the copper shavings from the annular filter cloth 5. In this way, the part of the annular filter cloth 5 that passes the top of the water tank 4 will always be clean, thus achieving the circulating filtration function.

[0052] To demonstrate the specific structure of the filter cloth cleaning component, the following features are provided:

[0053] The filter cloth cleaning component includes a scraper 19 and an air jet pipe. The scraper 19 is fixed to the first support frame 3 in an inclined state and is located above the material drop plate 6. The highest end of the scraper 19 is in contact with the annular filter cloth 5, and the lowest end of the scraper 19 faces the material drop plate 6. The air jet pipe includes an air intake main pipe 20 and several nozzles 21. The air intake main pipe 20 is fixed horizontally to the bottom of the water tank 4. One end of the air intake main pipe 20 is a closed structure, and the other end of the air intake main pipe 20 is an open structure. Several nozzles 21 are equidistantly distributed along the axial direction of the air intake main pipe 20. Each nozzle 21 is connected to the air intake main pipe 20, and each nozzle 21 is in an inclined state.

[0054] When the annular filter cloth 5 rotates with the copper shavings on it, the copper shavings will move from the top of the water tank 4 to one side of the water tank 4. At this time, the annular filter cloth 5 changes from horizontal to vertical. Some of the copper shavings on the annular filter cloth 5 will fall downwards onto the scraper 19 due to gravity. After that, the copper shavings will fall downwards along the scraper 19 onto the discharge plate 6. Some copper shavings will also adhere to the annular filter cloth 5. When the annular filter cloth 5 passes the scraper 19, the scraper 19 will scrape off the copper shavings attached to the annular filter cloth 5. When the annular filter cloth 5 rotates from vertical to horizontal again, the annular filter cloth 5 will pass the bottom of the water tank 4. During this process, several nozzles 21 will spray air from top to bottom onto the annular filter cloth 5, thereby further blowing the copper shavings attached to the annular filter cloth 5 into the discharge plate 6.

[0055] To prevent the annular filter cloth 5 from loosening, the following features are provided:

[0056] Below the water tank 4 is an elastic upper support, which includes a top roller 22 and two sets of elastic top seats. The top roller 22 is parallel to the rotating roller 17. The two sets of elastic top seats are symmetrically located at both ends of the top roller 22. Each set of elastic top seats includes a strip-shaped fixing seat 23, a slider 24, and several No. 1 springs 25. The strip-shaped fixing seat 23 is fixedly connected to the No. 1 support frame 3. The strip-shaped fixing seat 23 has a vertical strip-shaped groove 26 (e.g., ...). Figure 8 As shown, the slider 24 slides in the strip groove 26, and several No. 1 springs 25 are fixed in the strip groove 26. Each No. 1 spring 25 is vertical, and both ends of each No. 1 spring 25 abut against the inner wall of the slider 24 and the strip fixed seat 23, respectively. The two ends of the top roller 22 are rotatably connected to the two sliders 24, respectively.

[0057] The slider 24 is driven to rise by the elastic force of several No. 1 springs 25. When the two sliders 24 rise, the top roller 22 will tighten the annular filter cloth 5 upward, thereby preventing the annular filter cloth 5 from loosening, and thus ensuring that the scraper 19 can effectively scrape off the copper shavings on the annular filter cloth 5.

[0058] To enable the water in water tank 4 to automatically flow to sedimentation tank 8, the following features are provided:

[0059] Two sets of symmetrical guide vanes 27 are fixed inside the water tank 4 (e.g., Figure 3 As shown), each of the first guide plates 27 is inclined, with the highest point of each first guide plate 27 facing the top of the water tank 4 and the lowest point of each first guide plate 27 extending downward into the water tank 4. An inclined second guide plate 28 is formed between two first guide plates 27. A water guide pipe 29 is provided on one side of the outer wall of the water tank 4 (as shown). Figure 5 As shown in the figure, the water guide pipe 29 is connected to the upper end of the sedimentation tank 8.

[0060] After the wastewater is poured into the water tank 4, it will be discharged through the two No. 1 guide plates 27 in the water tank 4 to the No. 2 guide plate 28. After that, the wastewater will be discharged through the No. 2 guide plate 28 to the water pipe 29. Finally, the wastewater will be introduced into the sedimentation tank 8 through the water pipe 29.

[0061] To demonstrate how the lifting platform 11 drives the annular shell 10 to rise, the following features are provided:

[0062] A raised ring 30 of size 1 is formed on the inner wall of the lower end of the annular shell 10 (e.g., Figure 14As shown, the lifting pallet 11 is circular, and the peripheral wall of the lifting pallet 11 is in contact with the inner wall of the annular shell 10. The outer edge of the lifting pallet 11 is in contact with the first convex ring 30. Two long-shaft hydraulic cylinders 31 in a symmetrical state are provided below the sedimentation tank 8. Each long-shaft hydraulic cylinder 31 is vertically connected to the second support frame 7, and the output end of each long-shaft hydraulic cylinder 31 is fixedly connected to the bottom of the lifting pallet 11.

[0063] Two long-shaft hydraulic cylinders 31 are used to drive the lifting pallet 11 to rise and fall. When the lifting pallet 11 rises, it will extend upward into the annular shell 10. At this time, the outer edge of the lifting pallet 11 will abut against the first convex ring 30. Finally, the annular shell 10 will rise together with the lifting pallet 11.

[0064] To prevent wastewater in sedimentation tank 8 from being discharged from the bottom of sedimentation tank 8, the following features are provided:

[0065] The lower end of the annular shell 10 is formed with a vertically downward extending baffle ring 32, and the lower end of the sedimentation tank 8 is formed with an annular tail ring 33. The inner diameter of the annular tail ring 33 is smaller than the inner diameter of the sedimentation tank 8. The outer diameters of the annular shell 10 and the baffle ring 32 are consistent with the inner diameter of the annular tail ring 33. Several sets of drain outlets 16 are evenly arranged on the annular tail ring 33 along the circumferential direction. Each set of drain outlets 16 is formed with a downwardly inclined water guide groove 34. The top of the annular shell 10 is formed with a second-order convex ring 35 (e.g., ...). Figure 17 As shown, the second convex ring 35 has several notches 36. The structure of the retaining ring 14 is the same as that of the second convex ring 35. Each notch 36 is used for the insertion of the corresponding blocking block 15.

[0066] When the lifting plate 11 descends, the annular shell 10 will descend along with the lifting plate 11 due to gravity. When the lifting plate 11 descends to the drain outlet 16, the retaining ring 32 at the lower end of the annular shell 10 will first block the drain outlet 16. Thus, when the arc-shaped filter plate 13 on the annular shell 10 leaks through the drain outlet 16, the wastewater in the sedimentation tank 8 will not be discharged downward through the annular tail ring 33 due to the action of the retaining ring 32. At this time, the wastewater will be discharged directly through the drain outlet 16. When the wastewater is discharged, the wastewater is concentrated and guided by the water guide trough 34 to prevent the wastewater from flowing out in all directions.

[0067] When the annular shell 10 slides up and down inside the sedimentation tank 8, the outer ring of the second convex ring 35 will fit against the inner wall of the sedimentation tank 8. When the annular shell 10 rises, the block 15 on the inner wall of the sedimentation tank 8 will pass through the second convex ring 35 through the notch 36 on the second convex ring 35. When the annular shell 10 stops rising, the block 15 will block the arc-shaped filter plate 13 on the annular shell 10. When the annular shell 10 descends, the second convex ring 35 will gradually move downwards towards the retaining ring 14. When the second convex ring 35 moves downwards and abuts against the retaining ring 14, the annular shell 10 will be blocked by the retaining ring 32 and stop descending. After that, the lifting plate 11 will continue to descend, and finally the lifting plate 11 will be separated from the annular shell 10.

[0068] To facilitate the cleaning of impurities on the lifting pallet 11, the following features are provided:

[0069] The top of the lifting pallet 11 is formed with a conical truncated platform 37 that rises upwards. The first support frame 3 is equipped with an annular support plate 38 located below the settling tank 8. An annular collecting trough 39 is fixedly mounted on the annular support plate 38, and a downwardly inclined discharge trough 40 is formed on the annular collecting trough 39 (e.g., ...). Figure 9 (As shown).

[0070] After the impurities in the settling tank 8 settle, they will fall downwards onto the conical platform 37 on the lifting pallet 11. When the lifting pallet 11 separates from the annular shell 10, the impurities on the conical platform 37 can be pushed downwards into the annular collection trough 39. The conical platform 37 makes it easier for the impurities to be pushed downwards into the annular collection trough 39.

[0071] To demonstrate the specific structure of the mixing component, the following features were set:

[0072] The mixing components include a rotating shaft 41, a scraper 42, and several agitators 43. The rotating shaft 41 is vertically downward and rotatably connected to the conical platform 37. Several agitators 43 are located on the upper half of the rotating shaft 41 and are equidistantly distributed along the axial direction of the rotating shaft 41. Each agitator 43 is fixedly connected to the rotating shaft 41. The scraper 42 is located at the lower end of the rotating shaft 41 and is fixedly connected to the rotating shaft 41. A first drive unit 44 is provided at the top of the sedimentation tank 8, and a second drive unit 45 is provided below the sedimentation tank 8. The first drive unit 44 and the second drive unit 45 have the same structure, both including a square insert 46 and a motor 47. The square insert 46 is vertical, and the motor 47 is connected to the square insert 46. Square slots 48 are provided at both ends of the rotating shaft 41 (e.g., Figure 13 (As shown).

[0073] When the lifting plate 11 drives the annular shell 10 to rise, the rotating shaft 41, which is rotatably connected to the conical platform 37, will move upwards towards the first driving component 44. Then, the square insert 46 inside the first driving component 44 will insert downwards into the square slot 48 at the top of the rotating shaft 41. When the motor 47 starts, the square insert 46 will drive the rotating shaft 41 to rotate. At this time, several stirring paddles 43 will thoroughly mix the wastewater and flocculant in the sedimentation tank 8. When the lifting plate 11 descends, the rotating shaft 41 will engage with the square insert 46 on the first driving component 44. After separation, the rotating shaft 41 will gradually move downwards towards the square insert 46 on the second drive unit 45. Finally, when the lifting plate 11 separates from the annular shell 10, the square insert 46 in the second drive unit 45 will be inserted upwards into the square slot 48 at the lower end of the rotating shaft 41. When the motor 47 in the second drive unit 45 starts, the square insert 46 will drive the rotating shaft 41 to rotate. At this time, the scraper 42 will scrape off the impurities falling onto the conical platform 37. The scraped impurities will fall downwards along the conical platform 37 into the annular collection trough 39.

[0074] To demonstrate the specific structure of drive component 44 and drive component 45, the following features are provided:

[0075] Both drive component 44 and drive component 45 further include elastic mounting seats. Each elastic mounting seat includes a cylindrical shell 49, a second spring 50, and a second shaft seat 51. The cylindrical shell 49 is vertical, with one end open, and a sealing cover 52 is fixedly installed on the opening. One end of a square insert 46 slides inside the cylindrical shell 49, and the other end of the square insert 46 extends out of the cylindrical shell 49. A stop 53 is formed on the end of the square insert 46 that extends into the cylindrical shell 49 (e.g., ...). Figure 13 As shown, spring 50 is fixed inside cylindrical shell 49. The two ends of spring 50 abut against sealing cover plate 52 and stop block 53 respectively. A pivot pin 54 is formed on sealing cover plate 52. Pivot pin 54 is connected to bearing 51. Bearing 51 and motor 47 in drive component 44 are fixed to the top of sedimentation tank 8. Motor 47 in drive component 44 is connected to pivot pin 54. Sealing cover plate 52 in drive component 44 faces upward. Bearing 51 and motor 47 in drive component 45 are fixed to annular support plate 38. Motor 47 in drive component 45 is connected to pivot pin 54. Sealing cover plate 52 in drive component 45 faces downward.

[0076] Taking the first drive component 44 as an example, when the motor 47 starts, it drives the pivot pin 54 to rotate, which in turn drives the entire cylindrical shell 49 to rotate the square insert rod 46 inside. When the rotating shaft 41 moves upward and approaches the first drive component 44, the rotating square insert rod 46 will insert downward into the square slot 48 at the upper end of the rotating shaft 41. During this process, since the square slot 48 in the rotating shaft 41 may not correspond to the square insert rod 46, when the rotating shaft 41 rises, the upper end of the rotating shaft 41 will push the square insert rod 46 upward. At this time, the square insert rod 46 will move upward. Compressing the second spring 50 causes it to generate elastic force. When the square insertion rod 46 corresponds to the square slot 48, the elastic force of the second spring 50 causes the square insertion rod 46 to be inserted downward into the corresponding square slot 48. Similarly, since the first drive component 44 and the second drive component 45 have the same structure, the working process of the second drive component 45 is similar to that of the first drive component 44. When the rotating shaft 41 descends, the rotating shaft 41 will press down the square insertion rod 46 in the second drive component 45 until the square insertion rod 46 corresponds to the square slot 48 at the lower end of the rotating shaft 41.

[0077] Working principle:

[0078] The wastewater generated after polishing copper foil contains solid copper shavings and water-soluble impurities. This device first filters out the solid copper shavings from the wastewater using a copper shavings filter assembly 1, and then precipitates out the water-soluble impurities using a sedimentation and precipitation assembly 2. The specific operation process is as follows: Wastewater is poured into water tank 4 through the opening at the top of water tank 4. Before entering water tank 4, the wastewater passes through an annular filter cloth 5. A rotating roller assembly on the outer wall of water tank 4 drives the annular filter cloth 5 to rotate. When copper shavings fall onto the annular filter cloth 5, the copper shavings in the wastewater are blocked by the annular filter cloth 5, and the water passes through the annular filter cloth 5 into water tank 4. As the filter cloth rotates, the copper shavings falling on the annular filter cloth 5 will move downwards to the filter cloth cleaning component. The filter cloth cleaning component will remove the copper shavings from the annular filter cloth 5. The copper shavings that have detached from the annular filter cloth 5 will fall directly onto the discharge plate 6. Finally, the discharge plate 6 will concentrate and guide the copper shavings to the designated collection point. In actual use, a collection box for collecting copper shavings (not shown in the figure) can be installed at the end of the discharge plate 6. The cleaned part of the annular filter cloth 5 will rotate again to the top of the water tank 4, thereby realizing the circulation filtration of copper shavings in the wastewater. After that, the wastewater in the water tank 4 will be introduced into the sedimentation tank 8 for the sedimentation and precipitation of impurities.

[0079] Before the wastewater enters the sedimentation tank 8, the lifting plate 11 moves upward, causing the annular shell 10 to extend into the sedimentation tank 8. During this process, the lifting plate 11 moves upward past several sets of drain outlets 16. The lifting plate 11 has a fixed lifting stroke set in advance. When the lifting plate 11 reaches its stop, it seals the bottom of the sedimentation tank 8. At this time, each set of blocking blocks 15 on the inner wall of the sedimentation tank 8 seals the corresponding arc-shaped filter plate 13. When the wastewater enters the sedimentation tank 8, because the lifting plate 11 seals the opening at the bottom of the sedimentation tank 8, and the lifting plate 11 is located in several sets of drain outlets 16, the wastewater is effectively blocked. Above drain outlet 16, the wastewater cannot be discharged at this time. A dosing port (not shown in the figure) is machined on the outer wall of the upper part of the sedimentation tank 8. After all the wastewater in the water tank 4 is introduced into the sedimentation tank 8, flocculant is added into the sedimentation tank 8 through the dosing port. Then, the agitator inside the sedimentation tank 8 begins to agitate the wastewater, thereby promoting the mixing of the wastewater and flocculant. As the agitator continues to agitate, impurities in the wastewater will gradually precipitate out. Afterward, the agitator stops rotating, and the precipitated impurities in the wastewater are allowed to settle. At this time, the heavier impurities will gradually settle out. The sediment settles into the lifting hopper 9. After a period of settling, the lifting pallet 11 descends. During this process, the annular shell 10 descends along with the lifting pallet 11 due to gravity. At this time, the arc-shaped filter plate 13 on the annular shell 10 gradually separates from the blockage 15. After separating from the blockage 15, the arc-shaped filter plate 13 descends directly to the corresponding drain outlet 16. When the arc-shaped filter plate 13 aligns with the drain outlet 16, the lifting pallet 11 stops descending. At this time, the wastewater in the sedimentation tank 8 will be discharged through the arc-shaped filter plate 13 from the drain outlet 16. During this process, impurities are blocked by the arc-shaped filter plate 13, preventing... Impurities and water are discharged from the drain outlet 16. After all the wastewater in the sedimentation tank 8 is discharged, most of the impurities will accumulate on the top of the lifting plate 11, and a small amount of impurities will adhere to the inner wall of the annular shell 10. Then the lifting plate 11 will descend again. When the annular shell 10 comes into contact with the retaining ring 14, the annular shell 10 will stop descending. As the lifting plate 11 continues to descend, it will separate from the annular shell 10 and descend outside the sedimentation tank 8. After that, the impurities on the lifting plate 11 and the annular shell 10 can be cleaned.

[0080] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An automatic treatment device for polishing wastewater from electrolytic copper foil production, characterized in that, The system includes a copper scrap filtration assembly (1) and a sedimentation assembly (2). The copper scrap filtration assembly (1) includes a first support frame (3), a water tank (4), and a circulating filtration mechanism. The water tank (4) is fixed on the first support frame (3), and the top of the water tank (4) is an open structure. The circulating filtration mechanism includes an annular filter cloth (5), a rotating roller assembly, a filter cloth cleaning component, and a discharge plate (6). The rotating roller assembly is arranged in a matrix on the outer wall of the water tank (4). The annular filter cloth (5) is fitted onto the rotating roller assembly, and the annular filter cloth (5) covers the opening at the top of the water tank (4). The filter cloth cleaning component is located on the first support frame (3). The discharge plate (6) is located at an angle below the water tank (4). The annular filter cloth (5) passes between the filter cloth cleaning component and the discharge plate (6). The sedimentation assembly (2) includes a second support frame (7) and a sedimentation tank (8). The lifting bucket (9) and stirring components are vertically fixed on the first support frame (3). The lifting bucket (9) includes an annular shell (10) and a lifting plate (11). The bottom of the sedimentation tank (8) is an open structure. The lifting plate (11) drives the annular shell (10) upward to extend into the sedimentation tank (8) from the bottom. The stirring components are located inside the sedimentation tank (8). The annular shell (10) is provided with several sets of openings (12). Each set of openings (12) is provided with an arc-shaped filter plate (13). The inner wall of the sedimentation tank (8) is formed with a retaining ring (14) and several sets of blocking blocks (15). The retaining ring (14) is used to limit the downward stroke of the annular shell (10). Each set of blocking blocks (15) seals the corresponding arc-shaped filter plate (13). Several sets of drain outlets (16) are opened on the outer wall at the lower end of the sedimentation tank (8). A first convex ring (30) is formed on the inner wall of the lower end of the annular shell (10). The lifting plate (11) is circular, and the periphery of the lifting plate (11) is in contact with the inner wall of the annular shell (10). The outer edge of the lifting plate (11) is in contact with the first convex ring (30) upward. Two long-shaft hydraulic cylinders (31) in a symmetrical state are provided below the sedimentation tank (8). Each long-shaft hydraulic cylinder (31) is vertically connected to the second support frame (7). The output end of each long-shaft hydraulic cylinder (31) is fixedly connected to the bottom of the lifting plate (11) upward. The lower end of the annular shell (10) is formed with a vertically downward extending retaining ring (32), and the lower end of the sedimentation tank (8) is formed with an annular tail ring (33). The inner diameter of the annular tail ring (33) is smaller than the inner diameter of the sedimentation tank (8). The outer diameters of the annular shell (10) and the retaining ring (32) are consistent with the inner diameter of the annular tail ring (33). Several sets of drain outlets (16) are evenly arranged on the annular tail ring (33) along the circumferential direction. Each set of drain outlets (16) is formed with a downward inclined water guide groove (34). The top of the annular shell (10) is formed with a second convex ring (35). Several notches (36) are opened on the second convex ring (35). The structure of the retaining ring (14) is consistent with that of the second convex ring (35). Each notch (36) is used for the corresponding plug (15) to be inserted. The top of the lifting pallet (11) is formed with a cone-shaped platform (37) that rises upwards. The first support frame (3) is provided with an annular support plate (38) located below the sedimentation tank (8). An annular collection trough (39) is fixed on the annular support plate (38). A downwardly inclined discharge trough (40) is opened on the annular collection trough (39).

2. The automatic treatment device for polishing wastewater from electrolytic copper foil production according to claim 1, characterized in that, The rotating roller assembly includes four rotating rollers (17). The four rotating rollers (17) are arranged in pairs on both sides of the water tank (4). Each rotating roller (17) is horizontal, and the axial direction of each rotating roller (17) is parallel to the width direction of the water tank (4). Each rotating roller (17) has a No. 1 bearing (18) at both ends. Each No. 1 bearing (18) is fixed to the outer wall of the water tank (4). The annular filter cloth (5) is sleeved on the four rotating rollers (17).

3. The automatic treatment device for polishing wastewater from electrolytic copper foil production according to claim 1, characterized in that, The filter cloth cleaning component includes a scraper (19) and an air jet pipe. The scraper (19) is fixed on the first support frame (3) in an inclined state and is located above the discharge plate (6). The highest end of the scraper (19) is in contact with the annular filter cloth (5) and the lowest end of the scraper (19) faces the discharge plate (6). The air jet pipe includes an air intake main pipe (20) and several nozzles (21). The air intake main pipe (20) is fixed horizontally at the bottom of the water tank (4). One end of the air intake main pipe (20) is a closed structure and the other end of the air intake main pipe (20) is an open structure. Several nozzles (21) are equidistantly distributed along the axial direction of the air intake main pipe (20). Each nozzle (21) is connected to the air intake main pipe (20) and each nozzle (21) is in an inclined state.

4. An automatic treatment device for polishing wastewater from electrolytic copper foil production according to claim 2, characterized in that, The water tank (4) is provided with an elastic top support. The elastic top support includes a top roller (22) and two sets of elastic top seats. The top roller (22) is parallel to the rotating roller (17). The two sets of elastic top seats are symmetrically located at both ends of the top roller (22). Each set of elastic top seats includes a strip-shaped fixed seat (23), a slider (24) and several No. 1 springs (25). The strip-shaped fixed seat (23) is fixedly connected to the No. 1 support frame (3). The strip-shaped fixed seat (23) is provided with a vertical strip-shaped groove (26). The slider (24) slides in the strip-shaped groove (26). Several No. 1 springs (25) are fixedly located in the strip-shaped groove (26). Each No. 1 spring (25) is vertical, and both ends of each No. 1 spring (25) abut against the inner wall of the slider (24) and the strip-shaped fixed seat (23) respectively. The two ends of the top roller (22) are rotatably connected to the two sliders (24) respectively.

5. An automatic treatment device for polishing wastewater from electrolytic copper foil production according to claim 1, characterized in that, Two sets of symmetrical guide plates (27) are fixed inside the water tank (4). Each guide plate (27) is inclined. The highest end of each guide plate (27) faces the top of the water tank (4). The lowest end of each guide plate (27) extends downward into the water tank (4). A guide plate (28) is formed between the two guide plates (27) in an inclined state. A water pipe (29) is provided on one side of the outer wall of the water tank (4). The water pipe (29) is connected to the upper end of the sedimentation tank (8).

6. An automatic treatment device for polishing wastewater from electrolytic copper foil production according to claim 1, characterized in that, The mixing components include a rotating shaft (41), a scraper (42), and several mixing blades (43). The rotating shaft (41) is vertically downward and rotatably connected to the conical platform (37). Several mixing blades (43) are located on the upper half of the rotating shaft (41) and are equidistantly distributed along the axial direction of the rotating shaft (41). Each mixing blade (43) is fixedly connected to the rotating shaft (41). The scraper (42) is located at the lower end of the rotating shaft (41). The first drive component (44) is fixedly connected to the rotating shaft (41). The top of the sedimentation tank (8) is provided with a first drive component (44), and the bottom of the sedimentation tank (8) is provided with a second drive component (45). The first drive component (44) and the second drive component (45) have the same structure, including a square insert rod (46) and a motor (47). The square insert rod (46) is vertical, and the motor (47) is connected to the square insert rod (46). Both ends of the rotating shaft (41) are provided with square slots (48).

7. An automatic treatment device for polishing wastewater from electrolytic copper foil production according to claim 6, characterized in that, Both the first drive component (44) and the second drive component (45) also include an elastic mounting base. The elastic mounting base includes a cylindrical shell (49), a second spring (50), and a second shaft seat (51). The cylindrical shell (49) is vertical, with one end of the cylindrical shell (49) being an open structure. A sealing cover plate (52) is fixedly provided on the opening of the cylindrical shell (49). One end of the square insert rod (46) slides inside the cylindrical shell (49), and the other end of the square insert rod (46) extends out from inside the cylindrical shell (49). A stop block (53) is formed on the end of the square insert rod (46) that extends into the cylindrical shell (49). The second spring (50) is fixedly provided inside the cylindrical shell (49), and the two ends of the second spring (50) are respectively connected to... The sealing cover (52) and the stop (53) abut against each other. A pivot pin (54) is formed on the sealing cover (52). The pivot pin (54) is connected to the second shaft seat (51). The second shaft seat (51) and the motor (47) in the first drive component (44) are both fixed to the top of the sedimentation tank (8). The motor (47) in the first drive component (44) is connected to the corresponding pivot pin (54) for transmission. The sealing cover (52) in the first drive component (44) faces upward. The second shaft seat (51) and the motor (47) in the second drive component (45) are both fixed to the annular support plate (38). The motor (47) in the second drive component (45) is connected to the corresponding pivot pin (54) for transmission. The sealing cover (52) in the second drive component (45) faces downward.

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