Circulating water treatment device for electroplating aluminum oxide

Abstract

The utility model provides a circulating water treatment device for electroplating aluminum oxide, belongs to the technical field of electroplating circulating water treatment, and aims to solve the problems that a filter screen in the conventional circulating water treatment device for electroplating aluminum oxide is too complicated to disassemble and assemble when being cleaned or replaced, and precipitates are easy to generate in an electroplating tank. Comprising an electroplating tank; the supporting bracket is welded at the bottom of the electroplating tank; the waste residue cleaning plate is connected to the upper part of the electroplating tank in a sliding manner; the water pipe is arranged in the supporting bracket; the physical filtering bin is fixedly mounted in the water pipe; the chemical filtering bin is in bolted connection with the interior of the supporting bracket; the water pumping pump is in bolted connection with the upper part of the chemical filtering bin; the scraping and cleaning assembly is arranged in the electroplating tank; the filtering and replacing assembly is arranged in the physical filtering bin. The device has the advantages of quick cleaning, convenience in adjustment, centralized cleaning and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of electroplating circulating water treatment, and more specifically, particularly relates to a circulating water treatment device for electroplating aluminum oxide. Background Art

[0002] Electroplating is a process that uses electrolysis to attach a layer of metal film to the surface of a material. It has the functions of improving wear resistance, conductivity, reflectivity, corrosion resistance and enhancing aesthetics. A large amount of wastewater and waste residue will be generated during the electroplating process of aluminum oxide. Direct discharge will pollute the environment and waste resources. A circulating water treatment device for electroplating aluminum oxide is needed. The existing circulating water treatment device for electroplating aluminum oxide mainly uses physical filtration and chemical filtration to treat the circulating water. The waste residue in the circulating water is filtered out by physical filtration such as a filter. The remaining wastewater contains a large amount of heavy metal ions. Various chemical substances in chemical filtration are used to precipitate and neutralize the wastewater, and the treated water can be recycled.

[0003] Existing application number CN202122224465.3 The utility model discloses a water treatment device for electroplating products, including a treatment box, the left side of the treatment box is connected with a water inlet pipe, the right side of the bottom of the inner wall of the treatment box is provided with a filter element, the top of the filter element penetrates the outside of the treatment box, and the bottom of the right side of the treatment box is connected with a water outlet pipe. The stepper motor of the utility model drives 6 flip plates to rotate synchronously through a pulley mechanism. When the 6 flip plates rotate in a vertical state, the 6 flip plates block the rectangular frame below the water diversion channel, so that the water entering the inside of the treatment box gathers to the water diversion channel and is discharged from the bend of the water diversion channel and rushes to the filter element. In this process, the 6 flip plates block the water, and the water flow no longer rushes to the filter element, but flows from top to bottom, washing away the particles staying on the surface of the filter element, extending the service life of the filter element. When the flip plate is in a vertical state and flips to the horizontal direction, the water is discharged through the inside of the rectangular frame, which can speed up the filtration efficiency.

[0004] Based on the above, the physical filtration filter in the existing circulating water treatment device for electroplating aluminum oxide needs to be cleaned or replaced after a period of use to prevent waste residue from clogging the filter and affecting the filtering effect. However, the disassembly and assembly when cleaning or replacing the filter is too cumbersome, and it takes a lot of time to replace the filter, affecting the overall efficiency of the electroplating process. Moreover, the waste residue is mainly composed of sludge containing heavy metal salts, which is very easy to precipitate in the electroplating pool and needs to be cleaned manually. The cleaning process is relatively cumbersome, and heavy metal salts are more harmful to the human body. If the staff is accidentally contaminated with waste residue, it is easy to cause harm to the human body. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the utility model provides a circulating water treatment device for electroplating aluminum oxide, so as to solve the problem that the physical filtration filter in the existing circulating water treatment device for electroplating aluminum oxide needs to be cleaned or replaced after a period of use to prevent waste residue from clogging the filter and affecting the filtering effect. However, the disassembly and assembly when cleaning or replacing the filter is too cumbersome, and it takes a lot of time to replace the filter, which affects the overall efficiency of the electroplating process. Moreover, the waste residue is mainly composed of sludge containing heavy metal salts, which is very easy to precipitate in the electroplating pool and needs to be manually cleaned. The cleaning process is relatively cumbersome, and heavy metal salts are more harmful to the human body. If the staff is accidentally contaminated with waste residue, it is easy to cause harm to the human body.

[0006] The purpose and effect of the circulating water treatment device for electroplating aluminum oxide in the utility model are achieved by the following specific technical means:

[0007] A circulating water treatment device for electroplating aluminum oxide, comprising an electroplating tank;

[0008] A support bracket, wherein the support bracket is welded to the bottom of the electroplating tank;

[0009] A waste residue cleaning plate, wherein the waste residue cleaning plate is slidably connected above the electroplating tank;

[0010] A water pipe, wherein the water pipe is arranged inside the support bracket;

[0011] A physical filter chamber, wherein the physical filter chamber is fixedly installed inside the water pipe;

[0012] A chemical filtration chamber, wherein the chemical filtration chamber is bolted to the inside of the support bracket, and the chemical filtration chamber is fixedly connected to the inside of the water pipe;

[0013] A water pump, wherein the water pump is bolted above the chemical filtration chamber;

[0014] A scraping and cleaning component, wherein the scraping and cleaning component is arranged inside the electroplating tank;

[0015] A filter replacement component is arranged inside the physical filter compartment.

[0016] Furthermore, the scraping and cleaning assembly includes:

[0017] A driving motor, wherein the driving motor is fixedly mounted on the upper portion of the waste slag cleaning plate;

[0018] A driving pulley is fixedly installed inside the driving motor.

[0019] Furthermore, the scraping and cleaning assembly also includes:

[0020] A rotating shaft, the rotating shaft being rotatably connected to the bottom of the waste residue cleaning plate;

[0021] A driven pulley, wherein the driven pulley is fixedly mounted inside the rotating shaft and is connected to the driving pulley via a belt;

[0022] Active driving wheels, which are fixedly connected to both sides of the rotating shaft and are clamped on the upper side of the outer wall of the electroplating tank;

[0023] The driven rotating wheel is rotatably connected to the bottom of the waste residue cleaning plate and is clamped above the outer wall of the electroplating tank.

[0024] Furthermore, the scraping and cleaning assembly also includes:

[0025] A telescopic plate, wherein the telescopic plate is slidably connected inside the waste residue cleaning plate;

[0026] A telescopic square rod is slidably connected inside the rotating shaft.

[0027] Furthermore, the scraping and cleaning assembly also includes:

[0028] A fixing rod, the fixing rod being fixedly mounted on the bottom of the telescopic plate;

[0029] A telescopic round rod, wherein the telescopic round rod is slidably connected inside the fixed rod;

[0030] An inclined scraper, wherein the inclined scraper is connected to the end of the telescopic round rod through a thread;

[0031] Side scrapers are fixedly installed on both sides of the bevel scraper.

[0032] Furthermore, the filter replacement assembly includes:

[0033] A stop valve, the stop valve being fixedly installed inside the water pipe;

[0034] A water hole, wherein the water hole is provided inside the physical filter bin;

[0035] A filter plate, wherein the filter plate is slidably connected inside the physical filter chamber;

[0036] The filter screen is provided with two groups, and the two groups of filter screens are clamped inside the filter plate.

[0037] Furthermore, the filter replacement assembly also includes:

[0038] A transmission motor, wherein the transmission motor is fixedly mounted on one side of the physical filter bin;

[0039] The threaded rod is fixedly installed inside the transmission motor and is connected to the inside of the filter plate through threads.

[0040] Furthermore, the filter replacement assembly also includes:

[0041] Scrapers, wherein two groups of scrapers are provided, and the two groups of scrapers are hinged inside the physical filter bin;

[0042] Torsion springs, the torsion springs are fixedly mounted on both sides of the scraper;

[0043] A collecting hopper, the collecting hopper is fixedly mounted at the bottom of the physical filtering bin;

[0044] The collecting cylinder is connected to the bottom of the collecting bucket through threads.

[0045] Compared with the prior art, the utility model has the following beneficial effects:

[0046] Firstly, the utility model has a scraping and cleaning component, which drives the active driving wheel to rotate through a driving motor so that the waste residue cleaning plate moves above the outer wall of the electroplating pool, and the waste residue cleaning plate drives the inclined scraper and the side scraper to move to scrape off the waste residue deposited on the bottom and both sides of the electroplating pool, thereby greatly improving the cleaning efficiency of the electroplating pool and effectively preventing the waste residue from adhering to and being deposited in the electroplating pool. In addition, the length of the waste residue cleaning plate and the fixed rod can be quickly adjusted, so that the device can be installed in electroplating pools of different sizes and depths, thereby greatly improving the applicability of the device.

[0047] Secondly, the utility model has a filter replacement component, which filters the waste residue through the filter screen, and can drive the filter plate to move by the transmission motor so that the filter screen can be quickly replaced, which greatly improves the replacement efficiency of the filter screen, and when replacing the filter screen, the waste residue attached to the other group of filter screens can be quickly scraped off and collected and stored, which is convenient for centralized cleaning of the waste residue, and improves the cleaning effect and service life of the filter screen, which greatly reduces the time required for maintenance and replacement of the filter screen.

[0048] The utility model has the advantages of fast cleaning, easy adjustment, centralized cleaning, etc. The bevel scraper and the side scraper greatly improve the cleaning efficiency of the electroplating pool, reduce the contact time between the staff and the waste residue, and facilitate the rapid replacement and cleaning of the filter plate, greatly improving the replacement efficiency of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0050] Figure 2 It is a schematic diagram of the internal structure of the electroplating pool of the utility model.

[0051] Figure 3 It is a schematic diagram of the chemical filtration chamber structure of the utility model.

[0052] Figure 4It is a structural schematic diagram of the scraping and cleaning component of the utility model.

[0053] Figure 5 It is a schematic diagram of the structure of a water pump of the utility model.

[0054] Figure 6 It is a schematic diagram of the physical filtering chamber structure of the utility model.

[0055] Figure 7 It is a schematic diagram of the filter plate structure of the utility model.

[0056] Figure 8 The utility model Figure 7 Enlarged structural diagram at A in the middle.

[0057] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0058] 1. Electroplating tank; 2. Support bracket; 3. Waste residue cleaning plate; 301. Telescopic plate; 302. Driving motor; 3021. Active pulley; 303. Rotating shaft; 3031. Telescopic square rod; 3032. Driven pulley; 304. Active driving wheel; 305. Driven rotating wheel; 306. Fixed rod; 3061. Telescopic round rod; 307. Bevel scraper; 308. Side scraper; 4. Physical filtration chamber; 401. Filter plate; 402. Driving motor; 4021. Threaded rod; 403. Filter screen; 404. Scraper; 4041. Torsion spring; 405. Collecting bucket; 406. Collecting cylinder; 407. Water hole; 5. Chemical filtration chamber; 6. Water pump; 7. Water pipe; 701. Stop valve. DETAILED DESCRIPTION

[0059] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0060] Embodiment 1:

[0061] As attached Figure 1 To Attachment Figure 8 As shown:

[0062] The utility model provides a circulating water treatment device for electroplating aluminum oxide, comprising an electroplating pool 1;

[0063] A support bracket 2, the support bracket 2 is welded to the bottom of the electroplating tank 1;

[0064] A waste residue cleaning plate 3, the waste residue cleaning plate 3 is slidably connected above the electroplating tank 1;

[0065] A water pipe 7, the water pipe 7 is arranged inside the support bracket 2;

[0066] A physical filter chamber 4, which is fixedly installed inside the water pipe 7;

[0067] The chemical filter chamber 5 is bolted to the inside of the support bracket 2, and the chemical filter chamber 5 is fixedly connected to the inside of the water pipe 7;

[0068] A water pump 6, the water pump 6 is bolted above the chemical filtration chamber 5;

[0069] The scraping and cleaning component is arranged inside the electroplating tank 1.

[0070] Among them, the scraping and cleaning components include:

[0071] A driving motor 302, the driving motor 302 is fixedly mounted on the upper part of the waste residue cleaning plate 3;

[0072] The driving pulley 3021 is fixedly installed inside the driving motor 302 ; the driving pulley 3021 plays the role of driving the driving pulley 3021 to rotate when the driving motor 302 is powered on.

[0073] Among them, the scraping and cleaning component also includes:

[0074] A rotating shaft 303, the rotating shaft 303 is rotatably connected to the bottom of the waste residue cleaning plate 3;

[0075] A driven pulley 3032, the driven pulley 3032 is fixedly mounted inside the rotating shaft 303, and the driven pulley 3032 is connected to the driving pulley 3021 through a belt;

[0076] Active driving wheel 304, the active driving wheel 304 is fixedly connected to both sides of the rotating shaft 303, and the active driving wheel 304 is clamped on the outer wall of the electroplating tank 1;

[0077] The driven rotating wheel 305 is rotatably connected to the bottom of the waste residue cleaning plate 3, and the driven rotating wheel 305 is clamped above the outer wall of the electroplating pool 1; the function is that the driving pulley 3021 rotates and drives the driven pulley 3032 to rotate through the belt, the driven pulley 3032 drives the rotating shaft 303 to rotate, the rotating shaft 303 rotates and drives the active driving wheel 304 to rotate, the active driving wheel 304 drives the waste residue cleaning plate 3 to move above the outer wall of the electroplating pool 1, and the driven rotating wheel 305 plays a role of auxiliary movement when the waste residue cleaning plate 3 moves.

[0078] Among them, the scraping and cleaning component also includes:

[0079] The telescopic plate 301 is slidably connected to the inside of the waste residue cleaning plate 3;

[0080] The telescopic square rod 3031 is slidably connected to the inside of the rotating shaft 303; its function is to pull the waste residue cleaning plate 3, and the waste residue cleaning plate 3 drives the telescopic plate 301 to slide inside the waste residue cleaning plate 3, so as to adjust the length of the waste residue cleaning plate 3; pulling the waste residue cleaning plate 3 drives the rotating shaft 303 to move, and the rotating shaft 303 drives the telescopic square rod 3031 to slide inside the rotating shaft 303, so as to adjust the length of the rotating shaft 303.

[0081] Among them, the scraping and cleaning component also includes:

[0082] A fixing rod 306, the fixing rod 306 is fixedly installed at the bottom of the telescopic plate 301;

[0083] A telescopic round rod 3061, the telescopic round rod 3061 is slidably connected inside the fixed rod 306;

[0084] An inclined scraper 307, the inclined scraper 307 is connected to the end of the telescopic round rod 3061 through a thread;

[0085] The side scraper 308 is fixedly installed on both sides of the bevel scraper 307; the function is that the length of the fixed rod 306 can be adjusted by pulling the telescopic round rod 3061, and the bevel scraper 307 and the side scraper 308 scrape away the waste residue deposited on the bottom and both sides of the electroplating pool 1.

[0086] The specific usage and function of this embodiment are as follows:

[0087] When it is necessary to clean the inside of the electroplating pool 1, select a suitable bevel scraper 307, fix the bevel scraper 307 to the end of the telescopic round rod 3061 through threads, pull the waste residue cleaning plate 3 and the rotating shaft 303, adjust the waste residue cleaning plate 3 and the rotating shaft 303 to a suitable length through the telescopic plate 301 and the telescopic square rod 3031, clamp the active driving wheel 304 and the driven rotating wheel 305 above the outer wall of the electroplating pool 1, and pull the telescopic round rod 3061 to adjust the length of the fixed rod 306, so that the bevel scraper 307 is close to the bottom of the electroplating pool 1.

[0088] When the driving motor 302 is powered on, the driving motor 302 drives the active pulley 3021 to rotate. The rotation of the active pulley 3021 drives the driven pulley 3032 to rotate through the belt. The driven pulley 3032 drives the rotating shaft 303 to rotate. The rotation of the rotating shaft 303 drives the active driving wheel 304 to rotate. The active driving wheel 304 drives the waste slag cleaning plate 3 to move above the outer wall of the electroplating pool 1. The driven rotating wheel 305 plays an auxiliary movement role when the waste slag cleaning plate 3 moves. The movement of the waste slag cleaning plate 3 drives the telescopic plate 301 to move. The telescopic plate 301 drives the telescopic round rod 3061 and the fixed rod 306 to move. The telescopic round rod 3061 drives the inclined scraper 307 and the side scraper 308 to move. The inclined scraper 307 and the side scraper 308 move to scrape off the waste slag deposited on the bottom and both sides of the electroplating pool 1.

[0089] Embodiment 2:

[0090] Based on the first embodiment, Figures 1 to 8 As shown, it also includes:

[0091] The filter replacement component is arranged inside the physical filter compartment 4 .

[0092] The filter replacement components include:

[0093] A stop valve 701, which is fixedly installed inside the water pipe 7;

[0094] A water hole 407, which is provided inside the physical filter chamber 4;

[0095] A filter plate 401, the filter plate 401 is slidably connected inside the physical filter chamber 4;

[0096] The filter screen 403 is provided with two groups, and the two groups of filter screens 403 are clamped inside the filter plate 401; the function is to open the stop valve 701, and the waste water flows from the inside of the electroplating pool 1 through the water pipe 7 through the water hole 407 of the physical filter chamber 4. When the waste water passes through the water hole 407, the waste water is filtered by the filter screen 403 and then flows into the chemical filter chamber 5.

[0097] The filter replacement components also include:

[0098] A transmission motor 402, which is fixedly mounted on one side of the physical filter bin 4;

[0099] Threaded rod 4021, threaded rod 4021 is fixedly installed inside the transmission motor 402, and threaded rod 4021 is connected to the inside of the filter plate 401 through threads; the function is that when the transmission motor 402 is powered on, the transmission motor 402 drives the threaded rod 4021 to rotate, and the threaded rod 4021 drives the filter plate 401 to slide inside the physical filter chamber 4 through threads.

[0100] The filter replacement components also include:

[0101] Scraper 404, two groups of scraper 404 are provided, and the two groups of scraper 404 are hinged inside the physical filtering chamber 4;

[0102] Torsion spring 4041, the torsion spring 4041 is fixedly mounted on both sides of the scraper 404;

[0103] A collecting bucket 405, which is fixedly installed at the bottom of the physical filtering bin 4;

[0104] The collecting cylinder 406 is connected to the bottom of the collecting bucket 405 by threads; the function is that the torsion spring 4041 drives the scraper 404 to stick to the surface of the filter plate 401 under the elastic action. When the filter plate 401 slides inside the physical filter bin 4, the filter screen 403 aligned with the water hole 407 tilts outward due to the inclined structure of the scraper 404 when sliding out. The waste residue inside the filter screen 403 aligned with the water hole 407 is not scraped by the scraper 404, and enters the side of the inclined surface of the scraper 404 with the filter screen 403, while the other group of filter screens 403 slides to the position of the water hole 407, and the inclined structure of the scraper 404 scrapes the waste residue on the surface of the filter screen 403 to prevent the waste residue from entering the position of the water hole 407. The waste residue scraped by the scraper 404 falls into the collecting bucket 405 for concentration and then enters the collecting cylinder 406 for centralized storage. The collecting cylinder 406 is disassembled for cleaning by screwing the collecting cylinder 406.

[0105] The specific usage and function of this embodiment are as follows:

[0106] When electroplating in the electroplating pool 1 is completed and the wastewater in the electroplating pool 1 needs to be circulated, the stop valve 701 is opened, and the wastewater flows from the inside of the electroplating pool 1 through the water pipe 7 through the water hole 407 of the physical filter chamber 4. When the wastewater passes through the water hole 407, the wastewater is filtered by the filter net 403 and then flows into the chemical filter chamber 5. After the wastewater is filtered and precipitated by the chemical reagent inside the chemical filter chamber 5, it can be used normally. The water pump 6 is powered on to work, and the water pump 6 pumps the filtered water inside the chemical filter chamber 5 into the electroplating pool 1 for circulation.

[0107] When the filter 403 is used for a long time and needs to be replaced and maintained, the transmission motor 402 is energized and drives the threaded rod 4021 to rotate. The threaded rod 4021 drives the filter plate 401 to slide inside the physical filter chamber 4 through the thread. The filter plate 401 drives another group of filter screens 403 to align with the water hole 407, thereby achieving the effect of quickly replacing the filter screen 403.

[0108] When the filter screen 403 is replaced, the torsion spring 4041 drives the scraper 404 to be close to the surface of the filter plate 401 under the elastic action. When the filter plate 401 slides inside the physical filter chamber 4, the filter screen 403 aligned with the water hole 407 is tilted outward due to the inclined structure of the scraper 404 when sliding out. The waste residue inside the filter screen 403 aligned with the water hole 407 is not scraped by the scraper 404, and the waste residue enters the inclined side of the scraper 404 with the filter screen 403, while the other set of filter screens 403 slides to the water hole 407 position, and the inclined structure of the scraper 404 scrapes the waste residue on the surface of the other group of filter screens 403 to prevent the waste residue from entering the water hole 407 position. The waste residue scraped by the scraper 404 falls into the collecting bucket 405 for collection and then enters the collecting cylinder 406 for centralized storage. The collecting cylinder 406 is disassembled for cleaning by screwing the collecting cylinder 406, which plays the role of quickly cleaning the waste residue on the surface of the filter screen 403 and collecting the waste residue in a centralized manner.

Claims

1. A circulating water treatment device for electroplating aluminum oxide, characterized in that: The circulating water treatment device for electroplating aluminum oxide comprises an electroplating tank (1); a support bracket (2), the support bracket (2) being welded to the bottom of the electroplating tank (1); a waste residue cleaning plate (3), the waste residue cleaning plate (3) being slidably connected to the top of the electroplating tank (1); a water pipe (7), the water pipe (7) being arranged inside the support bracket (2); a physical filter chamber (4), the physical filter chamber (4) being fixedly installed inside the water pipe (7); a chemical filter chamber (5), the chemical filter chamber (5) being bolted to the inside of the support bracket (2), and the chemical filter chamber (5) being fixedly connected to the inside of the water pipe (7); a water pump (6), the water pump (6) being bolted to the top of the chemical filter chamber (5); a scraping and cleaning component, the scraping and cleaning component being arranged inside the electroplating tank (1); and a filter replacement component, the filter replacement component being arranged inside the physical filter chamber (4).

2. A circulating water treatment device for electroplating aluminum oxide as claimed in claim 1, characterized in that: The scraping and cleaning component comprises: a driving motor (302) and a driving pulley (3021); the driving motor (302) is fixedly mounted on the upper part of the waste residue cleaning plate (3); and the driving pulley (3021) is fixedly mounted inside the driving motor (302).

3. A circulating water treatment device for electroplating aluminum oxide as claimed in claim 2, characterized in that: The scraping and cleaning assembly also includes: a rotating shaft (303), a driven pulley (3032), an active driving wheel (304) and a driven rotating wheel (305); the rotating shaft (303) is rotatably connected to the bottom of the waste residue cleaning plate (3); the driven pulley (3032) is fixedly installed inside the rotating shaft (303), and the driven pulley (3032) is connected to the active pulley (3021) through a belt; the active driving wheel (304) is fixedly connected to both sides of the rotating shaft (303); and the driven rotating wheel (305) is rotatably connected to the bottom of the waste residue cleaning plate (3).

4. A circulating water treatment device for electroplating aluminum oxide as claimed in claim 2, characterized in that: The scraping and cleaning assembly further comprises: a telescopic plate (301) and a telescopic square rod (3031); the telescopic plate (301) is slidably connected inside the waste residue cleaning plate (3); and the telescopic square rod (3031) is slidably connected inside the rotating shaft (303).

5. A circulating water treatment device for electroplating aluminum oxide as claimed in claim 2, characterized in that: The scraping and cleaning assembly further comprises: a fixed rod (306), a telescopic round rod (3061), a bevel scraper (307) and a side scraper (308), wherein the fixed rod (306) is fixedly mounted at the bottom of the telescopic plate (301); the telescopic round rod (3061) is slidably connected to the inside of the fixed rod (306); the bevel scraper (307) is threadedly connected to the end of the telescopic round rod (3061); and the side scrapers (308) are fixedly mounted on both sides of the bevel scraper (307).

6. A circulating water treatment device for electroplating aluminum oxide as claimed in claim 1, characterized in that: The filter replacement assembly comprises: a stop valve (701), a water through hole (407), a filter plate (401) and a filter screen (403); the stop valve (701) is fixedly installed inside the water pipe (7); the water through hole (407) is provided inside the physical filter bin (4); the filter plate (401) is slidably connected inside the physical filter bin (4); and two groups of filter screens (403) are provided, and the two groups of filter screens (403) are clamped inside the filter plate (401).

7. A circulating water treatment device for electroplating aluminum oxide as claimed in claim 6, characterized in that: The filter replacement assembly further comprises: a transmission motor (402) and a threaded rod (4021); the transmission motor (402) is fixedly mounted on one side of the physical filter bin (4); and the threaded rod (4021) is threadedly connected to the inside of the filter plate (401).

8. A circulating water treatment device for electroplating aluminum oxide as claimed in claim 6, characterized in that: The filter replacement assembly further comprises: a scraper (404), a torsion spring (4041), a collection bucket (405) and a collection barrel (406); the scraper (404) is provided in two groups, and the two groups of scrapers (404) are hinged inside the physical filter bin (4); the torsion spring (4041) is fixedly mounted on both sides of the scraper (404); the collection bucket (405) is fixedly mounted on the bottom of the physical filter bin (4); and the collection barrel (406) is connected to the bottom of the collection bucket (405) by means of threads.

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