Resourceful treatment device for chemical nickel plating wastewater

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to a chemical nickel plating wastewater resourceful treatment device which comprises an interception box, one side of the bottom of the interception box is communicated with a complex breaking box, one side of the bottom of the complex breaking box is communicated with a settling box, and one side of the bottom of the settling box is communicated with a filter. A grating plate is fixedly connected to one side of the inner cavity wall of the intercepting box, multiple rows of filtering holes are formed in the grating plate, and the number of the filtering holes in each row is the same. The scraping and dredging integrated assembly is used for removing and collecting impurities attached to the upper surface and the lower surface of the grating plate and the hole walls of the filter holes, so that the situation that the filter holes are blocked by the impurities to affect subsequent wastewater passing is avoided, and the situation that the impurities are continuously accumulated on the lower surface of the grating plate and are prone to being separated from the grating plate due to gravity is also avoided. And the waste water is mixed with the waste water passing through the grating plate, so that the resourceful treatment effect on the waste water is influenced.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically a device for the resource-based treatment of chemical nickel plating wastewater. Background Technology

[0002] Electroless nickel plating is a non-electroplating process that deposits a nickel-phosphorus-boron alloy coating on the surface of a material through an autocatalytic chemical reaction. The electroless nickel plating process generates a large amount of wastewater containing heavy metals, buffer salts, complexing agents, and other toxic and harmful substances. Direct discharge of this wastewater can lead to soil and water pollution, disrupt the balance of the ecosystem, and threaten human health. Therefore, it is necessary to treat electroless nickel plating wastewater for resource recovery to ensure it meets discharge and reuse standards.

[0003] Patent CN206476846U discloses a device for treating chemical nickel plating wastewater and for the resource recovery of nickel and phosphorus. The device comprises an oxidation unit, a phosphorus recovery unit, and a nickel recovery unit. The oxidation unit includes a reaction tank. The phosphorus recovery unit consists of a first reaction tank, a second reaction tank, and a first sedimentation tank. The nickel recovery unit consists of a third reaction tank, a fourth reaction tank, and a second sedimentation tank. The reaction tank has an inlet pipe at its lower part; a first dosing pipe and a second dosing pipe at its top; a vent pipe at its bottom; and baffles arranged alternately at the top and bottom of the reaction tank. This patent achieves full compliance of treated effluent standards while also enabling the resource utilization of phosphorus and nickel.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: In the resource recovery treatment of electroless nickel plating wastewater, multiple steps such as complex breaking and chemical precipitation are involved. However, before complex breaking and chemical precipitation, the wastewater is first filtered through a bar screen to remove large suspended solids, grease, and other impurities, creating stable conditions for subsequent treatment. However, with continuous use, the bar screen accumulates more and more impurities on its surface. This can cause the filter pores on the bar screen to become blocked by impurities, and impurities smaller than the filter pores can enter the pores and adhere to the pore walls, leading to clogging and affecting the passage of subsequent wastewater. Furthermore, in some cases, impurities smaller than the filter pores can easily adhere to the lower surface of the bar screen due to the impact of the water flow. Although the impurities are small, as they accumulate on the lower surface of the bar screen, they can easily detach from the bar screen due to gravity and mix with the wastewater passing through the bar screen. This results in the wastewater still carrying a large amount of impurities during the complex breaking and chemical precipitation steps, thus affecting the resource recovery effect of the wastewater. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a resource-based treatment device for chemical nickel plating wastewater.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a chemical nickel plating wastewater resource treatment device, including an interception box, a chelating box connected to one side of the bottom of the interception box, a sedimentation box connected to one side of the bottom of the chelating box, a filter connected to one side of the bottom of the sedimentation box, a grid plate fixedly connected to one side of the inner wall of the interception box, the grid plate is provided with multiple rows of filter holes, and the number of filter holes in each row is the same; the interception box is also provided with an integrated scraping and unblocking component for cleaning impurities attached to the upper and lower surfaces of the grid plate and the filter hole walls; The integrated scraping and unblocking component includes a sliding rod 1 fixedly connected to both ends of the upper side of the interception box. The sliding rod 1 is slidably connected to a transverse plate. Guide rods are slidably connected to both sides of the transverse plate. A housing is fixedly connected to the lower end of the guide rod. A bucket is rotatably mounted on one side of the upper end of the housing. The two sliding rods 2 are fixedly connected to the bottom of the interception box cavity. A scraper is slidably connected to the sliding rod 2. The upper edge of the scraper is flush with the lower end face of the grid plate. Multiple sleeves are slidably connected and distributed horizontally at equal intervals at the bottom of the scraper. Adjacent sleeves are fixedly connected. The number of sleeves is the same as the number of filter holes in a row. When the sleeves rise, they can fit against the filter hole wall and pass through the filter hole. A top rod is slidably connected to the inner cavity of the sleeve, and adjacent top rods are fixedly connected.

[0007] Preferably, a fixing box is fixedly connected to the upper side of the left end face of the interception box, and a collection box is placed in the fixing box.

[0008] Preferably, one end of the transverse plate is threadedly connected to a threaded rod, both ends of which are rotatably mounted on the interception box. A motor is fixedly connected to one side of the upper end of the interception box, and the output end of the motor is fixedly connected to one end of the threaded rod. An electric actuator is fixedly connected to one side of the upper surface of the transverse plate, and the piston end of the electric actuator is fixedly connected to one side of the upper end of the housing.

[0009] Preferably, a motor is fixedly connected to one side of the upper end of the housing, and the output end of the motor is fixedly connected to one end of the bucket.

[0010] Preferably, a threaded rod is threadedly connected to one side of the lower end of the scraper, and both ends of the threaded rod are rotatably mounted on the interception box. A motor is fixedly connected to one side of the outer wall of the interception box, and the output end of the motor is fixedly connected to one end of the threaded rod.

[0011] Preferably, a threaded rod four is threadedly connected to one side of the sleeve, one end of the threaded rod four is rotatably mounted on the scraper, and a motor seven is fixedly connected to one side of the scraper, with the output end of the motor seven being fixedly connected to one end of the threaded rod four.

[0012] Preferably, an electric actuator is fixedly connected to one side of the outer wall of the sleeve, and the piston end of the electric actuator is fixedly connected to one end of a push rod on one side.

[0013] Preferably, the scraper is further provided with a multi-directional impurity pushing component; The impurity multi-directional pushing component includes multiple push plates slidably connected to one side of the upper end of the scraper. Threaded rods are rotatably provided at both ends of one side of the scraper. Multiple threads are intermittently provided on the threaded rods, and the multiple push plates are threadedly connected to the threaded rods. A motor is fixedly connected to one side of the scraper, and the output end of the motor is fixedly connected to one end of the threaded rods.

[0014] Preferably, the housing is further provided with a compression component; The compression assembly includes multiple rotating plates that are equidistantly distributed laterally and rotatably disposed on the lower end face of the housing. Compression plates are slidably connected to both sides of each rotating plate, and the number of rotating plates is the same as the number of top rods.

[0015] Preferably, a worm gear is fixedly connected to one side of the upper end of the rotating plate. The worm gear is rotatably mounted on the housing. A worm is rotatably mounted at both ends of the inner cavity of the housing. The worm has multiple segments of worm teeth intermittently arranged on it, and each segment of worm teeth meshes with a worm gear. A motor four is fixedly connected to one side of the inner cavity of the housing. The output end of the motor four is fixedly connected to one end of the worm. A bidirectional threaded rod is rotatably mounted at both ends of the rotating plate. The two sides of the bidirectional threaded rod are threadedly connected to compression plates on both sides. A motor five is fixedly connected to one end of the rotating plate. The output end of the motor five is fixedly connected to one end of the bidirectional threaded rod.

[0016] The beneficial effects of this invention are as follows: 1. The chemical nickel plating wastewater resource recovery treatment device of the present invention utilizes an integrated scraping and unblocking component to remove and collect impurities adhering to the upper and lower surfaces of the grating plate and the filter hole walls. This avoids the filter holes being blocked by impurities, thus affecting the passage of subsequent wastewater. It also prevents impurities from accumulating on the lower surface of the grating plate, easily detaching from the grating plate due to gravity, and mixing with the wastewater passing through the grating plate. This would prevent the wastewater from carrying a large amount of impurities for complex breaking and chemical precipitation steps, thereby affecting the resource recovery effect of the wastewater. Furthermore, even if impurities are distributed on the upper and lower surfaces of the grating plate and the filter hole walls, they will eventually be collected in the collection box for easy processing.

[0017] 2. The chemical nickel plating wastewater resource utilization treatment device of the present invention utilizes a multi-directional impurity pushing component, which enables all impurities falling to the bottom of the scraper to move to the upper end face of the top rod and be smoothly lifted by the top rod, ensuring that the bucket can smoothly scrape off the impurities. This avoids the situation where impurities accumulate on the scraper due to the presence of collection dead corners during impurity collection, and the impurities may fall to the bottom of the interception box through the edge of the scraper, affecting the subsequent wastewater treatment effect.

[0018] 3. The chemical nickel plating wastewater resource treatment device of the present invention utilizes a compression assembly. Each time the push rod passes through the filter hole, the compression plate squeezes the impurities in the groove, squeezing out the water and compressing the volume of the impurities. This avoids the situation where, due to the limited volume of the groove and the presence of water in some impurities, the impurities are too large and overflow from the groove during the push rod's unblocking of the filter hole, further ensuring the effective collection of impurities. Furthermore, after compressing the impurities, all rotating plates can be rotated 90 degrees, and then the compression plate can be used to squeeze the impurities again. This not only compresses the impurities but also moves them away from the edge of the sleeve, further reducing the risk of impurities escaping the groove and improving the collection capacity. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of a partial three-dimensional structure of the inner cavity of the interceptor box; Figure 3 This is a schematic diagram of the three-dimensional structure of the shell. Figure 4 This is a three-dimensional structural diagram of the shell from another perspective; Figure 5 This is a schematic diagram of the three-dimensional structure at the rotating plate. Figure 6 This is a schematic diagram of the three-dimensional structure of the scraper. Figure 7 This is a schematic diagram of the three-dimensional structure of the sleeve. Figure 8 This is a three-dimensional structural diagram of the scraper from another perspective; Figure 9 yes Figure 8 Enlarged view of a portion of point A in the middle.

[0021] In the diagram: 1. Interception box; 2. Breaking box; 3. Sedimentation box; 4. Filter; 5. Horizontal plate; 6. Slide rod one; 7. Threaded rod one; 8. Fixing box; 9. Collection box; 10. Motor one; 11. Grating plate; 12. Threaded rod two; 13. Slide rod two; 14. Motor two; 15. Electric push rod one; 16. Guide rod; 17. Housing; 18. Motor three; 19. Bucket; 20. Motor four; 21. Worm gear; 22. Rotating plate; 23. Compression plate; 24. Double-sided threaded rod; 25. Motor five; 26. Worm gear; 27. Scraper; 28. Motor six; 29. ​​Threaded rod three; 30. Push plate; 31. Sleeve; 32. Top rod; 33. Motor seven; 34. Threaded rod four; 35. Electric push rod two. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please refer to Figures 1-9 The present invention provides a technical solution: a chemical nickel plating wastewater resource treatment device, including an interception box 1, a chelation box 2 connected to one side of the bottom of the interception box 1, a sedimentation box 3 connected to one side of the bottom of the chelation box 2, a filter 4 connected to one side of the bottom of the sedimentation box 3, a grid plate 11 fixedly connected to one side of the inner wall of the interception box 1, the grid plate 11 is provided with multiple rows of filter holes, and the number of filter holes in each row is the same. The interception box 1 is also provided with an integrated scraping and unblocking component for cleaning the impurities attached to the upper and lower surfaces of the grid plate 11 and the filter hole walls. The integrated scraping and unblocking component includes a sliding rod 6 fixedly connected to both ends of the upper side of the interception box 1. The sliding rod 6 is slidably connected to a transverse plate 5. Guide rods 16 are slidably connected to both sides of the transverse plate 5. A housing 17 is fixedly connected to the lower end of the guide rods 16. A bucket 19 is rotatably installed on one side of the upper end of the housing 17. The two sides of the bottom of the inner cavity of the interception box 1 are fixedly connected to a sliding rod 13. A scraper 27 is slidably connected to the sliding rod 13. The upper edge of the scraper 27 is flush with the lower end of the grid plate 11. Multiple sleeves 31 are slidably connected and distributed horizontally at equal intervals at the bottom of the scraper 27. Adjacent sleeves 31 are fixedly connected. The number of sleeves 31 is the same as the number of filter holes in a row. When the sleeves 31 rise, they can fit against the filter hole wall and pass through the filter hole. A top rod 32 is slidably connected to the inner cavity of the sleeve 31. Adjacent top rods 32 are fixedly connected.

[0024] In this embodiment, as Figures 1-3 , Figure 6 , Figure 7 As shown, a fixed box 8 is fixedly connected to the upper side of the left end face of the interception box 1, and a collection box 9 is placed in the fixed box 8.

[0025] One end of the transverse plate 5 is threadedly connected to a threaded rod 7. Both ends of the threaded rod 7 are rotatably mounted on the interception box 1. A motor 10 is fixedly connected to one side of the upper end of the interception box 1. The output end of the motor 10 is fixedly connected to one end of the threaded rod 7. An electric push rod 15 is fixedly connected to one side of the upper surface of the transverse plate 5. The piston end of the electric push rod 15 is fixedly connected to one side of the upper end of the housing 17.

[0026] A motor 18 is fixedly connected to one side of the upper end of the housing 17, and the output end of the motor 18 is fixedly connected to one end of the bucket 19.

[0027] A threaded rod 12 is threadedly connected to one side of the lower end of the scraper 27. Both ends of the threaded rod 12 are rotatably mounted on the interception box 1. A motor 14 is fixedly connected to one side of the outer wall of the interception box 1. The output end of the motor 14 is fixedly connected to one end of the threaded rod 12.

[0028] One side of the sleeve 31 is threadedly connected to a threaded rod 34. One end of the threaded rod 34 is rotatably mounted on the scraper 27. One side of the scraper 27 is fixedly connected to a motor 33. The output end of the motor 33 is fixedly connected to one end of the threaded rod 34.

[0029] An electric actuator 35 is fixedly connected to one side of the outer wall of one sleeve 31. The piston end of the electric actuator 35 is fixedly connected to one end of the push rod 32 on one side.

[0030] Specifically, in existing technologies, the resource recovery treatment of electroless nickel plating wastewater involves multiple steps such as complex breaking and chemical precipitation. However, before complex breaking and chemical precipitation, large suspended solids, grease, and other impurities in the wastewater are filtered out by a bar screen 11 to create stable conditions for subsequent treatment. However, with continuous use, the bar screen 11 accumulates more impurities on its surface, potentially obscuring the filter pores. Impurities smaller than the pores can enter and adhere to the pore walls, causing blockage and affecting the passage of subsequent wastewater. Furthermore, in some cases, impurities smaller than the pores can adhere to the lower surface of the bar screen 11 due to the impact of water flow. Although small, these impurities can easily detach from the bar screen 11 due to gravity as they accumulate, mixing with the wastewater passing through it. This results in the wastewater still carrying a large amount of impurities during complex breaking and chemical precipitation, ultimately affecting the resource recovery effect.

[0031] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: The electroless nickel plating wastewater is added through the opening at the top of the interception tank 1. As the wastewater passes through the grating plate 11, impurities are trapped on the upper surface of the grating plate 11. After filtration, the wastewater enters the complex-breaking tank 2, where oxidants, sulfides, and other complex-breaking agents are added to treat the wastewater. After complex-breaking treatment, the wastewater flows into the sedimentation tank 3, where an appropriate amount of precipitant is added to form insoluble nickel ions. Solid-liquid separation is then achieved in the sedimentation tank. The wastewater then enters the filter 4, where suspended solids, colloids, and some dissolved organic matter are further removed. Finally, the treated wastewater is discharged through the filter 4. This process achieves the resource-based treatment of electroless nickel plating wastewater.

[0032] When wastewater is no longer added above the interception tank 1 and impurities adhere to the surface of the grating plate 11, the housing 17 can be lowered by the electric push rod 15, so that the bottom of the bucket 19 is in contact with the upper surface of the grating plate 11. The scraper 27 moves laterally from left to right by the rotation of the threaded rod 12 driven by the motor 14, using its upper edge to scrape off the impurities adhering to the lower surface of the grating plate 11. The impurities will fall into the inner cavity of the scraper 27. Since the initial position of the scraper 27 is in the left cavity of the interception tank 1, the wastewater will not directly contact the scraper 27 when it is added. Therefore, the electrical control equipment installed on the scraper 27 will not be affected by the water flow, and the electrical control equipment is equipped with a waterproof housing, so even if water splashes, it will not cause the electrical control equipment to malfunction. When the scraper 27 moves from the leftmost to the rightmost side of the grating plate 11, all the impurities adhering to the lower surface of the grating plate 11 have fallen into the inner cavity of the scraper 27. At this time, the motor 10 drives the threaded rod 7 to rotate, causing the bucket 19 to move from right to left. Simultaneously, the scraper 27 moves again, in the same direction and at the same speed as the bucket 19. As the bucket 19 moves laterally, it scrapes off the impurities attached to the upper surface of the grid plate 11. Some impurities enter the bucket 19, while others may fall downwards through the filter holes. The scraper 27, moving synchronously with the bucket 19, can then catch these impurities, preventing them from falling to the bottom of the interception box 1, until the scraper 27 and the bucket 19 move to the leftmost side of the grid plate 11. Since the upper surfaces of the sleeve 31 and the top rod 32 are initially flush with the bottom of the scraper 27, the impurities scraped down to the bottom of the scraper 27 by the scraper 27 and the bucket 19 will also fall onto the upper surfaces of the sleeve 31 and the top rod 32. At this time, the impurities scraped off from the upper and lower surfaces of the grid plate 11 will concentrate in the bucket 19 and the inner cavity of the scraper 27. Then, the scraper 27 is driven to move laterally again, so that the sleeves 31 are aligned with the filter holes of different rows in sequence. Then, the motor 33 drives the threaded rod 34 to rotate, so that multiple sleeves 31 rise at the same time, so that the sleeves 31 pass through the filter holes. Since the sleeves 31 are in contact with the inner wall of the filter holes, the impurities attached to the filter hole wall will be scraped off and fall onto the upper end face of the top rod 32. In addition, the upper end face of the top rod 32 is lower than the upper end face of the sleeves 31 in the initial state. The two cooperate to form a groove, so the scraped impurities will fall into the groove, thereby limiting the impurities and preventing the lifted impurities from falling onto the upper surface of the grid plate 11 again.Then repeat the above operation until all impurities in the filter holes are removed and the impurities are concentrated in the groove formed by the sleeve 31 and the push rod 32. Then drive the sleeve 31 and the push rod 32 to align with the leftmost row of filter holes. Then drive the sleeve 31 and the push rod 32 to rise. And use the electric push rod 35 to drive multiple push rods 32 to rise synchronously, so that the upper surfaces of the push rods 32, sleeves 31 and grid plate 11 are flush. At this time, the bucket 19 moves laterally, which can scrape the impurities pushed out by the push rods 32 into the inner cavity of the bucket 19. When the bottom edge of the bucket 19 is in contact with the left end face of the inner cavity of the interception box 1, drive the bucket 19 to rise again. The bucket 19 is moved laterally above the fixed box 8, and the motor 18 drives the bucket 19 to rotate, emptying the impurities in the bucket 19 into the collection box 9. This removes and collects impurities adhering to the upper and lower surfaces of the grid plate 11 and the walls of the filter holes. This prevents the filter holes from being clogged by impurities, thus affecting the passage of subsequent wastewater. It also prevents impurities from accumulating on the lower surface of the grid plate 11, easily detaching due to gravity and mixing with the wastewater passing through the grid plate 11. This would prevent the wastewater from carrying a large amount of impurities for further treatment processes such as complex breaking and chemical precipitation, thus affecting the resource recovery effect of the wastewater. Furthermore, even if impurities are distributed on the upper and lower surfaces of the grid plate 11 and the walls of the filter holes, they will eventually be collected in the collection box 9 for easy processing.

[0033] In this embodiment, as Figure 8 and Figure 9 As shown, the scraper 27 is also equipped with a multi-directional impurity pushing component; The impurity multi-directional pushing component includes multiple push plates 30 that are slidably connected to one side of the upper end of the scraper 27. Threaded rods 29 are rotatably provided at both ends of one side of the scraper 27. Multiple threads are intermittently provided on the threaded rods 29, and the multiple push plates 30 are threadedly connected to the threaded rods 29. A motor 28 is fixedly connected to one side of the scraper 27, and the output end of the motor 28 is fixedly connected to one end of the threaded rods 29.

[0034] Specifically, in the above embodiment, although the impurities scraped off the lower end face of the grid plate 11 will fall into the inner cavity of the scraper 27, there are gaps between the filter holes, and there are also corresponding gaps between the two adjacent sleeves 31. The impurities scraped off the lower end face of the grid plate 11 may fall into this gap. When the push rod 32 and the sleeve 31 rise, they cannot push the impurities in this area upward, and therefore cannot be scraped off by the bucket 19. As a result, the impurities remain in the inner cavity of the scraper 27. As the impurities accumulate, they may fall off the edge of the scraper 27 into the bottom of the interception box 1.

[0035] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: In the initial state, the foremost and rearmost push plates 30 are located at both ends of the scraper 27, while the remaining push plates 30 are paired up and located in the gap between two adjacent sleeves 31. When impurities fall to the bottom of the inner cavity of the scraper 27, the motor 6 28 drives the threaded rod 3 29 to rotate, causing the paired push plates 30 to separate and move closer to the adjacent sleeves 31. Similarly, the foremost and rearmost push plates 30 also move from the ends of the scraper 27 to the sleeves 31. The multiple push plates 30 scrape the impurities in the gap between the two adjacent sleeves 31 towards the top of the push rod 32, so that all the impurities that fall to the bottom of the scraper 27 are moved to the upper surface of the push rod 32 and can be smoothly lifted by the push rod 32. This ensures that the bucket 19 can smoothly scrape the impurities and avoids the situation where impurities accumulate on the scraper 27 due to the presence of dead corners during collection, and the impurities may fall to the bottom of the interception box 1 through the edge of the scraper 27, affecting the subsequent wastewater treatment effect.

[0036] In this embodiment, as Figures 3-5 As shown, a compression assembly is also provided on the housing 17; The compression assembly includes multiple rotating plates 22 that are equidistantly distributed laterally and rotatably disposed on the lower end face of the housing 17. Compression plates 23 are slidably connected to both sides of the rotating plates 22. The number of rotating plates 22 is the same as the number of top rods 32.

[0037] A worm gear 26 is fixedly connected to one side of the upper end of the rotating plate 22. The worm gear 26 is rotatably mounted on the housing 17. A worm 21 is rotatably mounted at both ends of the inner cavity of the housing 17. Multiple worm teeth are intermittently arranged on the worm 21, and each worm tooth meshes with a worm gear 26. A motor 20 is fixedly connected to one side of the inner cavity of the housing 17. The output end of the motor 20 is fixedly connected to one end of the worm 21. A bidirectional threaded rod 24 is rotatably mounted at both ends of the rotating plate 22. The two sides of the bidirectional threaded rod 24 are threadedly connected to the compression plates 23 on both sides respectively. A motor 25 is fixedly connected to one end of the rotating plate 22. The output end of the motor 25 is fixedly connected to one end of the bidirectional threaded rod 24.

[0038] Specifically, in the above embodiment, each time the push rod 32 passes through the filter hole, the impurities in the filter hole will fall into the groove formed by the interaction between the push rod 32 and the sleeve 31. However, since the groove has a limited volume, and some impurities contain moisture which makes them larger in volume, impurities may overflow from the groove during the process of the push rod 32 clearing the filter hole, thereby affecting the collection effect of impurities.

[0039] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Since there are multiple rotating plates 22, and each rotating plate 22 has two compression plates 23 corresponding to a push rod 32, whenever the push rod 32 passes through the filter hole, the lateral position of the housing 17 can be adjusted so that the compression plate 23 is aligned with the groove formed by the push rod 32 and the sleeve 31, and the compression plate 23 extends into the groove. Then, the motor 25 drives the bidirectional threaded rod 24 to rotate, so that the two compression plates 23 move closer to each other, squeezing the impurities in the groove, squeezing out the water from the impurities, and compressing the volume of the impurities. This avoids the situation where the impurities overflow from the groove due to the limited volume of the groove and the presence of water in some impurities, resulting in a large volume of impurities. This further ensures the collection effect of impurities. In addition, after compressing the impurities, the motor 20 can drive the worm gear 21 to rotate all the rotating plates 22 by 90 degrees, and then the compression plates 23 can be used to squeeze the impurities. This not only compresses the impurities but also moves them away from the edge of the sleeve 31, further reducing the risk of impurities falling out of the groove and improving the collection volume of impurities.

[0040] Working Principle: Chemical nickel plating wastewater is added through the opening at the top of the interception tank 1. As the wastewater passes through the grating plate 11, impurities are intercepted on its upper surface. The filtered wastewater then enters the complex-breaking tank 2, where oxidants, sulfides, and other complex-breaking agents are added to treat the wastewater. After complex-breaking, the wastewater flows into the sedimentation tank 3, where an appropriate amount of precipitant is added to form insoluble nickel ions, which are then separated into solid and liquid phases. The wastewater then enters the filter 4, where suspended solids, colloids, and some dissolved organic matter are further removed. The treated wastewater is then discharged through the filter 4. This process achieves the resource-based treatment of chemical nickel plating wastewater. When the wastewater is no longer added through the top of the interception tank 1, and impurities remain on the surface of the grating plate 11, the housing 17 can be lowered by the electric push rod 15, causing the bottom of the bucket 19 to contact the upper surface of the grating plate 11. The scraper 27 moves laterally from left to right by rotating the threaded rod 12 driven by motor 14. Its upper edge scrapes off impurities adhering to the lower surface of the grid plate 11, and the impurities fall into the inner cavity of the scraper 27. Since the scraper 27 is initially located in the left cavity of the interception box 1, wastewater does not directly contact it during addition. Therefore, the electrical control equipment mounted on the scraper 27 is not affected by the water flow, and the equipment has a waterproof casing, preventing malfunction even if water splashes. When the scraper 27 moves from the leftmost to the rightmost position of the grid plate 11, all impurities adhering to the lower surface of the grid plate 11 have fallen into the inner cavity of the scraper 27. At this time, the motor 10 drives the threaded rod 7 to rotate, causing the bucket 19 to move from right to left. Simultaneously, the scraper 27 moves again, in the same direction and at the same speed as the bucket 19. As the bucket 19 moves laterally, it scrapes off the impurities attached to the upper surface of the grid plate 11. Some impurities enter the bucket 19, while others may fall downwards through the filter holes. The scraper 27, moving synchronously with the bucket 19, can then catch these impurities, preventing them from falling to the bottom of the interception box 1, until the scraper 27 and the bucket 19 move to the leftmost side of the grid plate 11. Since the upper surfaces of the sleeve 31 and the top rod 32 are initially flush with the bottom of the scraper 27, the impurities scraped down to the bottom of the scraper 27 by the scraper 27 and the bucket 19 will also fall onto the upper surfaces of the sleeve 31 and the top rod 32. At this time, the impurities scraped off from the upper and lower surfaces of the grid plate 11 will concentrate in the bucket 19 and the inner cavity of the scraper 27.Then, the scraper 27 is driven to move laterally again, so that the sleeves 31 are aligned with the filter holes of different rows in sequence. Then, the motor 33 drives the threaded rod 34 to rotate, so that multiple sleeves 31 rise at the same time, so that the sleeves 31 pass through the filter holes. Since the sleeves 31 are in contact with the inner wall of the filter holes, the impurities attached to the filter hole wall will be scraped off and fall onto the upper end face of the top rod 32. In addition, the upper end face of the top rod 32 is lower than the upper end face of the sleeves 31 in the initial state. The two cooperate to form a groove, so the scraped impurities will fall into the groove, thereby limiting the impurities and preventing the lifted impurities from falling onto the upper surface of the grid plate 11 again. Then repeat the above operation until all impurities in the filter holes are removed and the impurities are concentrated in the groove formed by the sleeve 31 and the push rod 32. Then drive the sleeve 31 and the push rod 32 to align with the leftmost row of filter holes. Then drive the sleeve 31 and the push rod 32 to rise. And use the electric push rod 35 to drive multiple push rods 32 to rise synchronously, so that the upper surfaces of the push rods 32, sleeves 31 and grid plate 11 are flush. At this time, the bucket 19 moves laterally, which can scrape the impurities pushed out by the push rods 32 into the inner cavity of the bucket 19. When the bottom edge of the bucket 19 is in contact with the left end face of the inner cavity of the interception box 1, drive the bucket 19 to rise again. The bucket 19 is moved laterally above the fixed box 8, and the motor 18 drives the bucket 19 to rotate, emptying the impurities in the bucket 19 into the collection box 9. This removes and collects impurities adhering to the upper and lower surfaces of the grid plate 11 and the filter hole walls. This prevents the filter holes from being clogged by impurities, thus affecting the subsequent wastewater flow. It also prevents impurities from accumulating on the lower surface of the grid plate 11, easily detaching due to gravity and mixing with the wastewater passing through the grid plate 11, thus avoiding the wastewater still carrying a large amount of impurities for further treatment such as complex breaking and chemical precipitation, which would affect the resource recovery effect of the wastewater. Furthermore, even if impurities are distributed on the upper and lower surfaces of the grid plate 11 and the filter hole walls, they will eventually be collected in the collection box 9 for easy processing. Initially, the foremost and rearmost push plates 30 are located at both ends of the scraper 27, and the remaining push plates 30 are placed in pairs at the gaps between adjacent sleeves 31. When impurities fall to the bottom of the inner cavity of scraper 27, motor 6 28 drives threaded rod 3 29 to rotate, causing the push plates 30 that are in contact with each other to separate and move closer to the adjacent sleeve 31. Similarly, the push plates 30 on the front and back sides also move from the end of scraper 27 to sleeve 31. Then, multiple push plates 30 scrape the impurities in the gap between two adjacent sleeves 31 toward the top of the push rod 32, so that all the impurities that fall to the bottom of scraper 27 are moved to the upper end of the push rod 32 and can be smoothly lifted by the push rod 32. This ensures that the bucket 19 can smoothly scrape the impurities and avoids the situation where impurities accumulate on scraper 27 due to the presence of dead corners during collection. The impurities may also fall to the bottom of interception box 1 through the edge of scraper 27, affecting the subsequent wastewater treatment effect.Since there are multiple rotating plates 22, and each rotating plate 22 has two compression plates 23 corresponding to a push rod 32, whenever the push rod 32 passes through the filter hole, the lateral position of the housing 17 can be adjusted so that the compression plate 23 is aligned with the groove formed by the push rod 32 and the sleeve 31, and the compression plate 23 extends into the groove. Then, the motor 25 drives the bidirectional threaded rod 24 to rotate, so that the two compression plates 23 move closer to each other, squeezing the impurities in the groove, squeezing out the water from the impurities, and compressing the volume of the impurities. This avoids the situation where the impurities overflow from the groove due to the limited volume of the groove and the presence of water in some impurities, resulting in a large volume of impurities. This further ensures the collection effect of impurities. In addition, after compressing the impurities, the motor 20 can drive the worm gear 21 to rotate all the rotating plates 22 by 90 degrees, and then the compression plates 23 can be used to squeeze the impurities. This not only compresses the impurities but also moves them away from the edge of the sleeve 31, further reducing the risk of impurities falling out of the groove and improving the collection volume of impurities.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for the resource utilization treatment of chemical nickel plating wastewater, comprising an interception tank (1), characterized in that: The bottom side of the interception box (1) is connected to the breaking box (2), the bottom side of the breaking box (2) is connected to the sedimentation box (3), the bottom side of the sedimentation box (3) is connected to the filter (4), the inner wall of the interception box (1) is fixedly connected to the grid plate (11), the grid plate (11) is provided with multiple rows of filter holes, and the number of filter holes in each row is the same. The interception box (1) is also provided with a scraping and unblocking integrated component for cleaning the impurities attached to the upper and lower surfaces of the grid plate (11) and the filter hole walls. The integrated scraping and unblocking assembly includes a sliding rod (6) fixedly connected to both ends of the upper side of the interception box (1). The sliding rod (6) is slidably connected to a transverse plate (5). Guide rods (16) are slidably connected to both sides of the transverse plate (5). A housing (17) is fixedly connected to the lower end of the guide rod (16). A bucket (19) is rotatably mounted on one side of the upper end of the housing (17). A second sliding rod (13) is fixedly connected to both sides of the bottom of the inner cavity of the interception box (1). A scraper (27) is slidably connected. The upper edge of the scraper (27) is flush with the lower end face of the grid plate (11). Multiple sleeves (31) are slidably connected to the bottom of the scraper (27) at equal intervals. Adjacent sleeves (31) are fixedly connected. The number of sleeves (31) is the same as the number of filter holes in a row. When the sleeves (31) rise, they can fit against the filter hole wall and pass through the filter hole. The inner cavity of the sleeve (31) is slidably connected to a top rod (32), and adjacent top rods (32) are fixedly connected.

2. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: A fixed box (8) is fixedly connected to the upper side of the left end face of the interception box (1), and a collection box (9) is placed in the fixed box (8).

3. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: One end of the transverse plate (5) is threadedly connected to a threaded rod (7), both ends of which are rotatably mounted on the interception box (1). A motor (10) is fixedly connected to one side of the upper end of the interception box (1), and the output end of the motor (10) is fixedly connected to one end of the threaded rod (7). An electric push rod (15) is fixedly connected to one side of the upper surface of the transverse plate (5), and the piston end of the electric push rod (15) is fixedly connected to one side of the upper end of the housing (17).

4. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: A motor (18) is fixedly connected to one side of the upper end of the housing (17), and the output end of the motor (18) is fixedly connected to one end of the bucket (19).

5. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: The scraper (27) is threaded to one side of the lower end with a threaded rod (12). Both ends of the threaded rod (12) are rotatably mounted on the interception box (1). The outer wall of the interception box (1) is fixedly connected to a motor (14). The output end of the motor (14) is fixedly connected to one end of the threaded rod (12).

6. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: One side of the sleeve (31) is threadedly connected to a threaded rod four (34). One end of the threaded rod four (34) is rotatably mounted on the scraper (27). One side of the scraper (27) is fixedly connected to a motor seven (33). The output end of the motor seven (33) is fixedly connected to one end of the threaded rod four (34).

7. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: One side of the outer wall of the sleeve (31) is fixedly connected to an electric push rod (35), and the piston end of the electric push rod (35) is fixedly connected to one end of the push rod (32) on one side.

8. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: The scraper (27) is also provided with a multi-directional impurity pushing component; The impurity multi-directional pushing component includes multiple push plates (30) slidably connected to one side of the upper end of the scraper (27). Two threaded rods (29) are rotatably provided at both ends of one side of the scraper (27). Multiple threads are intermittently provided on the threaded rods (29), and the multiple push plates (30) are threadedly connected to the threaded rods (29). A motor (28) is fixedly connected to one side of the scraper (27), and the output end of the motor (28) is fixedly connected to one end of the threaded rods (29).

9. The chemical nickel plating wastewater resource utilization treatment device according to claim 1, characterized in that: A compression assembly is also provided on the housing (17); The compression assembly includes multiple rotating plates (22) that are equidistantly distributed laterally and rotatably disposed on the lower end face of the housing (17). Compression plates (23) are slidably connected to both sides of the rotating plates (22). The number of rotating plates (22) is the same as the number of top rods (32).

10. The chemical nickel plating wastewater resource utilization treatment device according to claim 9, characterized in that: A worm gear (26) is fixedly connected to one side of the upper end of the rotating plate (22). The worm gear (26) is rotatably mounted on the housing (17). A worm (21) is rotatably mounted at both ends of the inner cavity of the housing (17). Multiple worm teeth are intermittently mounted on the worm (21), and each worm tooth meshes with a worm gear (26). A motor four (20) is fixedly connected to one side of the inner cavity of the housing (17). The output end of the motor four (20) is fixedly connected to one end of the worm (21). A bidirectional threaded rod (24) is rotatably mounted at both ends of the rotating plate (22). The two sides of the bidirectional threaded rod (24) are threadedly connected to the compression plates (23) on both sides respectively. A motor five (25) is fixedly connected to one end of the rotating plate (22). The output end of the motor five (25) is fixedly connected to one end of the bidirectional threaded rod (24).

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