Cathode electrophoretic coating water circulation device

Abstract

The utility model discloses a cathode electrophoretic coating water circulation device which comprises a tank body, a stirring and cleaning mechanism arranged in the tank body, a sewage tank arranged on one side of the tank body, a filter tank arranged on the other side of the tank body, and a clean water tank arranged below the filter tank, the stirring and cleaning mechanism comprises a rotating motor arranged at the top end of the tank body, and the output end of the rotating motor is connected with a rotating shaft. A rotating shaft is arranged in the tank body, a stirring rod is arranged on the rotating shaft, mounting plates are arranged at the top end and the bottom end of the rotating shaft, first scraping plates are arranged on the mounting plates, the first scraping plates abut against the inner wall of the tank body, a mounting frame is arranged below the mounting plate at the bottom end of the rotating shaft, and a second scraping plate is arranged on the mounting frame. The device is simple in structure and convenient to operate, medicines and wastewater can be uniformly mixed, the reaction speed is increased, sludge attached to the inner wall of the tank body can be cleaned through rotation of the scraper blade after precipitation is completed, and normal operation and the treatment effect of the device are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cathodic electrophoretic coating, and specifically to a cathodic electrophoretic coating water circulation device. Background Art

[0002] Cathodic electrophoretic coating is an important coating technology. Under the action of a direct current electric field, positively charged resin ions in the paint solution entrain pigments and move towards the cathode, and the positive ions are removed on the cathode (i.e., the workpiece), depositing into a water-insoluble electrophoretic paint film. After electrophoretic coating of the workpiece, the workpiece needs to be cleaned to wash off the electrophoretic impurities on the surface. In order to avoid waste and pollution of the wastewater after cleaning, it usually needs to be treated and recycled again.

[0003] In order to realize the recycling of wastewater, the cathodic electrophoretic coating water circulation device plays a key role. The device adds drugs into the tank body and undergoes a chemical reaction with the wastewater to convert harmful chemical substances in the wastewater into harmless substances. However, after the dosing reaction, the sludge that has settled will sink to the bottom of the tank body, and during the sedimentation process, the sludge is prone to adhere to the inner wall of the tank body. The existing water circulation device lacks an effective cleaning mechanism inside and cannot effectively remove the sludge adhering to the inner wall of the tank body, which will affect the normal operation and treatment effect of the device. For the problems in the related technology, no effective solution has been proposed yet. Summary of the Utility Model

[0004] Aiming at the problems in the related technology, the utility model proposes a cathodic electrophoretic coating water circulation device to overcome the above-mentioned technical problems existing in the existing related technology.

[0005] For this purpose, the specific technical solution adopted by the utility model is as follows:

[0006] A cathodic electrophoretic coating water circulation device includes a tank body. A stirring and cleaning mechanism is arranged inside the tank body. A sewage tank is arranged on one side of the tank body, a filtering tank is arranged on the other side, and a clean water tank is arranged below the filtering tank.

[0007] Furthermore, in order to be able to stir the drugs and wastewater inside the tank body and be able to remove the sludge adhering to the inner wall, the stirring and cleaning mechanism includes a rotating motor arranged at the top of the tank body. The output end of the rotating motor is connected to a rotating shaft. Stirring rods are arranged on the rotating shaft. Installation plates are arranged at the top and bottom of the rotating shaft. First scraping plates are arranged on the installation plates and are in contact with the inner wall of the tank body. An installation frame is arranged below the installation plate at the bottom end of the rotating shaft, and a second scraping plate is arranged on the installation frame.

[0008] Furthermore, in order to be able to discharge the sludge, a slag discharge pipe is arranged at the bottom end of the tank body. A slag discharge valve is arranged on the slag discharge pipe. A drug addition port is arranged on one side at the top of the tank body, and an observation window is arranged on the tank body.

[0009] Furthermore, in order to be able to extract the wastewater inside the sewage tank and filter out larger contaminants with a coarse filter screen, a water inlet pipe is provided on one side of the chemical addition port. An installation box is provided above the water inlet pipe. One end of the water inlet pipe is connected to the installation box. A coarse filter screen is detachably connected inside the installation box. The top end of the installation box is connected to the output end of the first water pump through a connecting pipe. The input end of the first water pump is connected to the sewage tank through a water inlet pipe.

[0010] Furthermore, in order to be able to further filter the sewage after the reaction is completed and ensure the purification effect, an installation frame is provided inside the filter tank. The number of installation frames is two. A fine filter screen layer and an activated carbon layer are respectively provided inside the two installation frames. A clamping groove is provided inside the installation frame. A telescopic spring is provided inside the clamping groove. There are two openings on the filter tank. Installation plates are provided outside the openings. The two installation plates are respectively abutted against the fine filter screen layer and the activated carbon layer. The installation plates are connected to the filter tank through bolts.

[0011] Furthermore, a water outlet pipe is provided on one side of the tank body. A drain valve is provided on the water outlet pipe. One end of the water outlet pipe is connected to the input end of the second water pump. The output end of the second water pump is connected to the filter tank through a connecting pipe. The bottom end of the filter tank is connected to the clean water tank through a drain pipe.

[0012] Furthermore, in order to be able to wash the inside of the tank body and ensure the cleanliness of the inside of the tank body, one side of the clean water tank is connected to the third water pump through a connecting pipe. The third water pump is connected to a return pipe. A return valve is provided on the return pipe. A flushing pipe is connected above the return pipe. The flushing pipe is communicated with the tank body. A flushing valve is provided on the flushing pipe.

[0013] The beneficial effects of the present utility model are as follows:

[0014] (1) By setting up a stirring and cleaning mechanism and a stirring rod, the medicine can be evenly mixed with the wastewater, accelerating the reaction speed. After the precipitation is completed, the reacted wastewater can be discharged through the water outlet pipe, and then the sludge can be discharged through the slag discharge pipe. Moreover, the sludge adhering to the inner wall of the tank body can be cleaned by the rotation of the scraper, ensuring the normal operation of the device and the treatment effect.

[0015] (2) By arranging a connecting plate on the outside of the filter tank and disassembling the connecting plate, under the action of the telescopic spring, the fine filter screen layer and the activated carbon layer can pop out, facilitating the replacement of the fine filter screen layer and the activated carbon layer and ensuring the filtering effect of the filter tank. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is the front view of a cathode electrophoresis coating water circulation device according to an embodiment of the present invention.

[0018] Figure 2 It is the rear view of a cathode electrophoresis coating water circulation device according to an embodiment of the present invention.

[0019] Figure 3 It is the internal structure diagram of the tank body of a cathode electrophoresis coating water circulation device according to an embodiment of the present invention.

[0020] Figure 4 It is the internal structure diagram of the filter box of a cathode electrophoresis coating water circulation device according to an embodiment of the present invention.

[0021] In the figure:

[0022] 1. Tank body; 2. Stirring and cleaning mechanism; 201. Rotating motor; 202. Rotating shaft; 203. Stirring rod; 204. Installation plate; 205. First scraping plate; 206. Installation frame; 207. Second scraping plate; 3. Sewage tank; 4. Filter box; 5. Clean water tank; 6. Slag discharge pipe; 7. Slag discharge valve; 8. Chemical addition port; 9. Observation window; 10. Water inlet pipe; 11. Installation box; 12. Coarse filter screen; 13. First water pump; 14. Water inlet pipe; 15. Installation frame; 16. Fine filter screen layer; 17. Activated carbon layer; 18. Card slot; 19. Telescopic spring; 20. Opening; 21. Connecting plate; 22. Water outlet pipe; 23. Drainage valve; 24. Second water pump; 25. Third water pump; 26. Return pipe; 27. Flushing pipe. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] According to an embodiment of the present invention, a cathode electrophoresis coating water circulation device is provided.

[0025] Embodiment 1

[0026] As shown Figures 1 - 3 in the figure, the cathode electrophoresis coating water circulation device according to the embodiment of the present utility model includes a tank body 1. A stirring and cleaning mechanism 2 is arranged inside the tank body 1. A sewage tank 3 is arranged on one side of the tank body 1, and a filtering tank 4 is arranged on the other side. A water purification tank 5 is arranged below the filtering tank 4. The stirring and cleaning mechanism 2 includes a rotating motor 201 arranged at the top of the tank body 1. The output end of the rotating motor 201 is connected to a rotating shaft 202. Stirring rods 203 are arranged on the rotating shaft 202. Mounting plates 204 are arranged at the top and bottom of the rotating shaft 202. First scraping plates 205 are arranged on the mounting plates 204. The first scraping plates 205 are in contact with the inner wall of the tank body 1. An installation frame 206 is arranged below the mounting plate 204 at the bottom end of the rotating shaft 202. A second scraping plate 207 is arranged on the installation frame 206. A slag discharge pipe 6 is arranged at the bottom end of the tank body 1. A slag discharge valve 7 is arranged on the slag discharge pipe 6. A chemical adding port 8 is arranged on one side at the top of the tank body 1. An observation window 9 is arranged on the tank body 1. The material of the observation window 9 is a transparent material. By arranging the observation window 9, it is convenient to observe the internal situation of the tank body 1. A water inlet pipe 10 is arranged on one side of the chemical adding port 8. An installation box 11 is arranged above the water inlet pipe 10. One end of the water inlet pipe 10 is connected to the installation box 11. A coarse filter screen 12 is detachably connected inside the installation box 11. The top end of the installation box 11 is connected to the output end of a first water pump 13 through a connecting pipe. The input end of the first water pump 13 is connected to the sewage tank 3 through a water inlet pipe 14.

[0027] As shown Figures 1 - 4 in the figure, an installation frame 15 is arranged inside the filtering tank 4. The number of the installation frames 15 is two. A fine filter screen layer 16 and an activated carbon layer 17 are respectively arranged inside the two installation frames 15. A clamping groove 18 is arranged inside the installation frame 15. A telescopic spring 19 is arranged inside the clamping groove 18. Two openings 20 are arranged on the filtering tank 4. Connecting plates 21 are arranged outside the openings 20. The two connecting plates 21 are respectively in contact with the fine filter screen layer 16 and the activated carbon layer 17. The connecting plates 21 are connected to the filtering tank 4 through bolts. An outlet pipe 22 is arranged on one side of the tank body 1. A drain valve 23 is arranged on the outlet pipe 22. One end of the outlet pipe 22 is connected to the input end of a second water pump 24. The output end of the second water pump 24 is connected to the filtering tank 4 through a connecting pipe. The bottom end of the filtering tank 4 is connected to the water purification tank 5 through a drain pipe. One side of the water purification tank 5 is connected to a third water pump 25 through a connecting pipe. The third water pump 25 is connected to a return pipe 26. A return valve is arranged on the return pipe 26. A flushing pipe 27 is connected above the return pipe 26. The flushing pipe 27 is communicated with the tank body 1. A flushing valve is arranged on the flushing pipe 27.

[0028] In order to facilitate the understanding of the above technical solution of the present utility model, the working principle or operation mode of the present utility model in the actual process will be described in detail below.

[0029] In practical applications, by starting the first water pump 13, wastewater is pumped from inside the sewage tank 3 into the tank body 1, and the wastewater is filtered through a coarse filter screen to prevent large impurities in the wastewater from affecting the normal reaction between the wastewater and the drug. Then, drugs are added through the medicine adding port 8. By starting the rotary motor 201, the stirring rod 203, the first scraper 205 and the second scraper 207 are driven to rotate, which can make the drugs and the wastewater mix evenly. Then, by stopping the rotary motor, the wastewater inside the tank body 1 is allowed to stand. After the standing is completed, the upper-layer wastewater can be discharged through the water outlet pipe 22 and the second water pump 24. By opening the slag discharge valve 7, the sludge can be discharged. At this time, the rotary motor 201 can be started again to drive the first scraper 205 and the second scraper 207 to rotate, which can clean the sludge adhering to the inner wall, so that the sludge can be discharged along the slag discharge pipe 6. Then, the wastewater is further filtered and adsorbed through the fine filter screen layer 16 and the activated carbon layer 17 inside the filter tank 4 to ensure the treatment effect of the wastewater. And when the fine filter screen layer 16 and the activated carbon layer 17 have been used for a long time, they can be disassembled through the connecting plate 21. Under the action of the telescopic spring 19, the fine filter screen layer 16 and the activated carbon layer 17 will automatically pop out, which is convenient for replacing the fine filter screen layer 16 and the activated carbon layer 17. The treated wastewater can enter the clean water tank 5. The water inside the clean water tank 5 can be reused by starting the third water pump 25. By opening the reflux valve, it can be recycled again. And it can also enter the tank body 1 again by opening the flushing valve to clean the tank body 1 to ensure the cleanliness inside the tank body 1 and facilitate the use by the user.

[0030] In summary, by means of the above technical solution of the present invention, through the stirring and cleaning mechanism 2, by setting the stirring rod 203, the drugs and the wastewater can be mixed evenly, the reaction speed can be accelerated. And after the precipitation is completed, the reacted wastewater can be discharged through the water outlet pipe 22. Then, the sludge can be discharged through the slag discharge pipe 6. And the sludge adhering to the inner wall of the tank body 1 can be cleaned by the rotation of the scraper, which ensures the normal operation and treatment effect of the device. And by arranging the connecting plate 21 on the outer side of the filter tank 4, by disassembling the connecting plate 21, under the action of the telescopic spring 19, the fine filter screen layer 16 and the activated carbon layer 17 can pop out, which is convenient for replacing the fine filter screen layer 16 and the activated carbon layer 17 and ensures the filtering effect of the filter tank 4.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cathode electrophoresis coating water circulation device, characterized in that, It includes a tank body (1), inside which there is a stirring and cleaning mechanism (2). On one side of the tank body (1), there is a sewage tank (3), and on the other side, there is a filter tank (4). Below the filter tank (4), there is a clean water tank (5). The stirring and cleaning mechanism (2) includes a rotating motor (201) provided at the top of the tank body (1). The output end of the rotating motor (201) is connected to a rotating shaft (202). On the rotating shaft (202), there are stirring rods (203). At the top and bottom ends of the rotating shaft (202), there are mounting plates (204). On the mounting plates (204), there are first scraping plates (205). The first scraping plates (205) are in contact with the inner wall of the tank body (1). Below the mounting plate (204) at the bottom end of the rotating shaft (202), there is a mounting frame (206). On the mounting frame (206), there is a second scraping plate (207).

2. The water circulation device for cathodic electrophoretic coating according to claim 1, wherein At the bottom end of the tank body (1), there is a slag discharge pipe (6). On the slag discharge pipe (6), there is a slag discharge valve (7). On one side at the top of the tank body (1), there is a chemical adding port (8). On the tank body (1), there is an observation window (9).

3. The water circulation device for cathodic electrodeposition coating according to claim 2, characterized in that, On one side of the chemical adding port (8), there is a water inlet pipe (10). Above the water inlet pipe (10), there is a mounting box (11). One end of the water inlet pipe (10) is connected to the mounting box (11). Inside the mounting box (11), there is a coarse filter screen (12) detachably connected. The top end of the mounting box (11) is connected to the output end of a first water pump (13) through a connecting pipe. The input end of the first water pump (13) is connected to the sewage tank (3) through a water inlet pipe (14).

4. A cathodic electrophoretic coating water circulation device according to claim 1, characterized in that Inside the filter tank (4), there is a mounting frame (15). The number of the mounting frames (15) is two. Inside the two mounting frames (15), there are respectively a fine filter screen layer (16) and an activated carbon layer (17). Inside the mounting frame (15), there is a card slot (18). Inside the card slot (18), there is a telescopic spring (19). On the filter tank (4), there are openings (20). The number of the openings (20) is two. Outside the openings (20), there are connecting plates (21). The two connecting plates (21) are respectively in contact with the fine filter screen layer (16) and the activated carbon layer (17). The connecting plates (21) are connected to the filter tank (4) through bolts.

5. A cathodic electrophoretic coating water circulation device according to claim 1, characterized in that, On one side of the tank body (1), there is a water outlet pipe (22). On the water outlet pipe (22), there is a drain valve (23). One end of the water outlet pipe (22) is connected to the input end of a second water pump (24). The output end of the second water pump (24) is connected to the filter tank (4) through a connecting pipe. The bottom end of the filter tank (4) is connected to the clean water tank (5) through a drain pipe.

6. The water circulation device for cathodic electrodeposition coating according to claim 1, wherein On one side of the clean water tank (5), it is connected to a third water pump (25) through a connecting pipe. The third water pump (25) is connected to a reflux pipe (26). On the reflux pipe (26), there is a reflux valve. Above the reflux pipe (26), there is a flushing pipe (27) connected. The flushing pipe (27) is communicated with the tank body (1). On the flushing pipe (27), there is a flushing valve.

Images