Wastewater treatment system for automobile plastic part spraying workshop

Abstract

The invention discloses an automobile plastic part spraying workshop wastewater treatment system, and relates to the technical field of wastewater treatment.The automobile plastic part spraying workshop wastewater treatment system comprises a reaction barrel, a sealing plate is arranged at the top end of the reaction barrel, and a separation assembly is arranged in the reaction barrel. The internal space of the settling barrel is isolated from the internal space of the reaction barrel, and sediments generated in the reaction barrel are concentrated in the settling barrel for treatment, so that the generated sediments do not influence the precipitation reaction in the reaction barrel, and the wastewater is in full contact with a medicament; the follow-up treatment of the precipitate in the precipitation barrel does not interfere with the reaction in the reaction barrel, the stirring paddle can accelerate the mixing of the wastewater and the medicament in the low-speed rotation process to improve the reaction efficiency, and the flocculation precipitate collected when the stirring paddle rotates is pushed into the precipitation barrel through the scraping plate to be collected and treated; the separation of the precipitate and the wastewater is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to a wastewater treatment system for an automobile plastic part spraying workshop. Background Art

[0002] In the processing flow of automobile parts, the spraying process is one of the key links. It can not only improve the antioxidant and corrosion resistance of automobile parts, extend the service life of automobiles, but also enhance the aesthetics of automobiles. However, the wastewater generated during the spraying process of automobile plastic parts contains a large amount of organic substances such as paint particles, solvents, and resins, and may also contain pollutants such as heavy metal ions and pigments. Such wastewater must be fully filtered and meet the discharge standards before it can be discharged.

[0003] Currently, the treatment of spraying wastewater usually generates coagulation precipitation through chemical reactions, and then separates solid particles from the wastewater. However, the existing technologies have the following problems: First, the sediment needs to stand for a period of time to fully react and precipitate, resulting in low treatment efficiency; second, the sediment has a high water content and is difficult to be completely separated from the wastewater; third, although stirring can accelerate the reaction rate, the generated swirl will damage the structure of the flocs.

[0004] Based on this, the present invention designs a wastewater treatment system for an automobile plastic part spraying workshop to solve the problem of fully separating the flocculated sediment from the spraying wastewater. Summary of the Invention

[0005] The purpose of the present invention is to provide a wastewater treatment system for an automobile plastic part spraying workshop to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A wastewater treatment system for an automobile plastic part spraying workshop, including a reaction barrel, a sealing plate is arranged at the top of the reaction barrel, a separation component is arranged inside the reaction barrel, the separation component includes a sedimentation barrel, the sedimentation barrel is rotatably arranged inside the reaction barrel, a plurality of stirring paddles are fixedly connected to the side wall of the sedimentation barrel, a water filtering port is opened at the end of the stirring paddle close to the sedimentation barrel, the separation component further includes a scraping plate arranged inside the stirring paddle, and the scraping plate is used to separate the sediment from the inside of the reaction barrel along the stirring paddle into the sedimentation barrel.

[0007] As a further solution of the present invention, the separation component further includes a connecting frame, the connecting frame is sleeved on the top of the scraping plate, a positioning rod is fixedly connected to the sedimentation barrel, a sliding block is slidably connected to the positioning rod, the top end of the sliding block is fixedly connected to the connecting frame, a convex shaft is fixedly connected to one end of the sliding block, and closed sliding rails for docking with the convex shaft are respectively opened on the inner walls of the reaction barrel and the sealing plate. A baffle is slidably connected inside the sedimentation barrel, a docking plate is fixedly connected to the top end of the baffle, and a connecting shaft for its reset is slidably connected inside the baffle.

[0008] As a further solution of the present invention, a feed plate is slidably connected to the top end of the sealing plate. A fixing frame is fixedly connected to the top end of the sealing plate. A telescopic member is slidably connected inside the fixing frame. A driving motor is fixedly connected to the top end of the fixing frame. The output shaft of the driving motor passes through the fixing frame and is fixedly connected to the top end of the telescopic member.

[0009] As a further solution of the present invention, a sliding ring is slidably connected inside the precipitation barrel. A closing assembly is arranged inside the sliding ring. One end of the closing assembly is fixedly connected to the inner wall of the sliding ring. The rotating end of the closing assembly is fixedly connected to the transmission shaft. The top end of the transmission shaft is fixedly connected to the output shaft of the telescopic member.

[0010] As a further solution of the present invention, an anti-wear sleeve for reducing wear is sleeved on one end of the scraping plate.

[0011] As a further solution of the present invention, a chute is opened at the bottom end of the stirring paddle. A baffle plate is slidably connected to the chute. A connecting plate for slidably connecting with the baffle plate is fixedly connected to one end of the stirring paddle. A clamping block is fixedly connected to the side wall of the baffle plate. One end of the scraping plate is slidably connected to the clamping block.

[0012] As a further solution of the present invention, a sealing cover is fixedly connected to the output shaft of the telescopic member. The sealing cover is used for sealing connection with the inner wall of the top end of the sealing plate.

[0013] As a further solution of the present invention, the curvature of the side wall of the stirring paddle is the same as that of the positioning rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] In the present invention, the precipitate generated by the reaction is separated from the wastewater through the separation component. The internal space of the precipitation barrel is isolated from the internal space of the reaction barrel. The precipitate generated in the reaction barrel can be concentrated in the precipitation barrel for treatment, avoiding the influence of the generated precipitate on the precipitation reaction in the reaction barrel, making the contact between the wastewater and the medicament more sufficient. At the same time, the subsequent treatment of the precipitate in the precipitation barrel has no interference with the reaction in the reaction barrel. In addition, during the low-speed rotation of the stirring paddle, the mixing of the wastewater and the medicament can be accelerated, improving the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the internal structure of the reaction barrel;

[0018] Figure 3 is a schematic diagram of the structure of the separation component;

[0019] Figure 4 is Figure 3 The enlarged structural schematic diagram of part A in

[0020] Figure 5 The top - view structural schematic diagram of the scraping plate and the material - blocking plate;

[0021] Figure 6 The structural schematic diagram of the baffle and the connecting shaft;

[0022] Figure 7 The structural schematic diagram of the bottom of the reaction barrel;

[0023] Figure 8 The structural schematic diagram of the precipitation barrel;

[0024] Figure 9 The structural schematic diagram of the transmission shaft, the closing assembly and the sliding ring;

[0025] Figure 10 The schematic diagram of the scraping plate sliding along the stirring paddle;

[0026] Figure 11 The schematic diagram of the open state of the closing assembly.

[0027] In the attached drawings: 1. Reaction barrel; 2. Sealing plate; 3. Feeding plate; 4. Fixed frame; 5. Telescopic member; 6. Driving motor; 7. Precipitation barrel; 8. Stirring paddle; 9. Scraping plate; 10. Connecting plate; 11. Positioning rod; 12. Water filtering port; 13. Docking plate; 14. Baffle; 15. Slide block; 16. Convex shaft; 17. Connecting frame; 18. Material - blocking plate; 19. Chute; 20. Closing slide rail; 21. Anti - wear sleeve; 22. Clamping block; 23. Connecting shaft; 24. Transmission shaft; 25. Closing assembly; 26. Sliding ring. Detailed implementation manners

[0028] Please refer to Figures 1 - 11 , the present invention provides a technical solution: A wastewater treatment system for an automotive plastic part spraying workshop, including a reaction barrel 1, a sealing plate 2 is arranged at the top of the reaction barrel 1, a separation assembly is arranged inside the reaction barrel 1, and the separation assembly is used for separating and collecting the precipitate generated after chemical reaction in the wastewater from the wastewater. The feeding plate 3 is slidably connected to the top of the sealing plate 2, the fixed frame 4 is fixedly connected to the top of the sealing plate 2, the telescopic member 5 is slidably connected inside the fixed frame 4, the driving motor 6 is fixedly connected to the top of the fixed frame 4, and the output shaft of the driving motor 6 passes through the fixed frame 4 and is fixedly connected to the top of the telescopic member 5;

[0029] See Figures 1 - 2, open the feed plate 3 to add the spraying wastewater into the reaction barrel 1, and then add an appropriate amount of chemical agents to react with the wastewater to produce a flocculation reaction to generate a precipitate. The precipitate generated in the reaction barrel 1 is separated from the wastewater by the separation component and collected centrally, and then the collected precipitate is taken out of the reaction barrel 1 by stretching the telescopic member 5, so that when the wastewater in the reaction barrel 1 is precipitated by the chemical agents, the precipitate can be continuously separated from the wastewater. First, the precipitate can be fully separated from the wastewater, which is convenient for the subsequent treatment of the wastewater; second, the generated precipitate is taken out from the wastewater, so that the remaining wastewater can further react with the chemical agents to generate precipitate.

[0030] As a further solution of the present invention, the separation component includes a sedimentation barrel 7, which is rotatably arranged inside the reaction barrel 1, and a plurality of stirring paddles 8 are fixedly connected to the side wall of the sedimentation barrel 7. The stirring paddle 8 is provided with a water filter port 12 near the end of the sedimentation barrel 7. The separation component also includes a scraper plate 9 arranged inside the stirring paddle 8, and a connecting frame 17 is sleeved on the top of the scraper plate 9. A positioning rod 11 is fixedly connected to the sedimentation barrel 7, and a slider 15 is slidably connected to the positioning rod 11. The top of the slider 15 is fixedly connected to the connecting frame 17, and one end of the slider 15 is fixedly connected to a convex shaft 16. The reaction barrel 1 and the sealing plate 2 are respectively provided with a closed slide rail 20 for docking with the convex shaft 16 on the inner wall, the baffle 14 is slidably connected to the inside of the precipitation barrel 7, the top of the baffle 14 is fixedly connected to the docking plate 13, and the baffle 14 is slidably connected to the connecting shaft 23 for its reset. The bottom end of the stirring paddle 8 is provided with a chute 19, and the chute 19 is slidably connected to the baffle plate 18. One end of the stirring paddle 8 is fixedly connected to a connecting plate 10 for sliding connection with the baffle plate 18, and a clamping block 22 is fixedly connected to the side wall of the baffle plate 18. One end of the scraper plate 9 is slidably connected to the clamping block 22;

[0031] See also Figures 2 - 8 When the wastewater reacts with the chemical agent to generate precipitation inside the reaction barrel 1, the drive motor 6 is started to drive the transmission shaft 24 to rotate at a low speed through the telescopic member 5, and the sedimentation barrel 7 drives the stirring paddle 8 to rotate at a low speed so that the wastewater and the chemical agent are stirred and mixed thoroughly; since the stirring paddle 8 is provided with a water filter port 12, the stirring paddle 8 will filter the precipitation in the wastewater into the stirring paddle 8 during the rotation process, and the wastewater can pass through the water filter port 12, and while the stirring paddle 8 is rotating, the convex shaft 16 is slidably connected with the closed slide rail 20 (the bottom of the reaction barrel 1 and the sealing plate 2 are respectively provided with a closed slide rail 20, the stirring paddle 8 located above is slidably connected with the closed slide rail 20 at the bottom of the sealing plate 2 through the convex shaft 16, and the stirring paddle 8 located below is slidably connected with the closed slide rail 20 at the bottom of the reaction barrel 1 through the convex shaft 16). Figure 4The position of the middle scraper 9 is in the initial state. At this time, the convex shaft 16 is slidably connected to the widest part of the closed slide rail 20. As the stirring paddle 8 slides, the convex shaft 16 gradually slides along the closed slide rail 20 toward the inside of the reaction barrel 1, so that the convex shaft 16 drives the slider 15 to slide along the positioning rod 11, and the slider 15 pulls the scraper 9 and the baffle plate 18 to slide together (the sliding state is as shown in FIG. Figure 10 As shown), the scraper plate 9 and the baffle plate 18 can push the sediment inside the stirring paddle 8 to the connection between the stirring paddle 8 and the sedimentation barrel 7. The purpose of this is to isolate the internal space of the sedimentation barrel 7 from the internal space of the reaction barrel 1, and to concentrate the sediment generated inside the reaction barrel 1 inside the sedimentation barrel 7 for processing, so that the generated sediment will not affect the precipitation reaction inside the reaction barrel 1, so that the wastewater and the reagent are in contact more fully, and the subsequent treatment of the sediment inside the sedimentation barrel 7 will not affect the reaction inside the reaction barrel 1;

[0032] As the scraper plate 9 continues to slide, it gradually contacts the docking plate 13 and pushes the docking plate 13 to rotate around the connecting shaft 23, causing the baffle 14 to slide toward the inside of the sedimentation barrel 7, thereby opening an opening on the side wall of the sedimentation barrel 7 (see Figure 10 When the scraper plate 9 is gradually slid, the sediment inside the scraper plate 9 is pushed into the sedimentation barrel 7. At this time, the sedimentation barrel 7 has been rotated ninety degrees, that is, the convex shaft 16 has slid to the innermost side of the reaction barrel 1 along the closing slide rail 20. The sedimentation barrel 7 continues to rotate, and the convex shaft 16 will slide along the closing slide rail 20 to the outer side of the reaction barrel 1. The convex shaft 16 drives the slider 15 and the scraper plate 9 to slide back and forth. After the docking plate 13 is disengaged from the squeezing of the scraper plate 9, it is closed again under the action of the reset elastic force to seal the sedimentation barrel 7. The scraper plate 9 is reset to push the sediment inside the stirring paddle 8 into the sedimentation barrel 7.

[0033] As a further solution of the present invention, a sliding ring 26 is slidably connected to the interior of the sedimentation barrel 7, and a closing component 25 is provided inside the sliding ring 26. One end of the closing component 25 is fixedly connected to the inner wall of the sliding ring 26, and the rotating end of the closing component 25 is fixedly connected to the transmission shaft 24. The top end of the transmission shaft 24 is fixedly connected to the output shaft of the telescopic member 5;

[0034] See also Figure 8 、 Figure 9 as well as Figure 11, when collecting sediment in the sedimentation bucket 7, the closing assembly 25 inside the sliding ring 26 unfolds and is laid inside the sliding ring 26 around the transmission shaft 24, so that the inside of the sliding ring 26 is closed. The transmission shaft 24 is stretched upward by the telescopic member 5 to slide upward, so that the sediment collected inside the sedimentation bucket 7 will be carried upward by the closing assembly 25. After the sediment on the closing assembly 25 is cleaned by an external suction device, the driving motor 6 drives the transmission shaft 24 to rotate, and the transmission shaft 24 drives the closing assembly 25 to rotate, so that the closing assembly 25 folds together as Figure 11 shown. Then the telescopic member 5 drives the transmission shaft 24 to sink back to the bottom of the sedimentation bucket 7 again, and the driving motor 6 drives the transmission shaft 24 to reverse to make the closing assembly 25 open again. The purpose of doing this is to form a bottom flat plate through the laid closing assembly 25 to carry the sediment inside the sedimentation bucket 7 upward. When the closing assembly 25 slides downward, if there is sediment that re-enters the sedimentation bucket 7 at this time, it can move through the sliding ring 26 along the contracted closing assembly 25 to above the closing assembly 25. In this way, the up and down sliding of the closing assembly 25 will not affect the collection of sediment inside the sedimentation bucket 7.

[0035] As a further solution of the present invention, an anti-wear sleeve 21 for reducing wear is sleeved at one end of the scraping plate 9;

[0036] See Figure 3 , Figure 5 , when the scraping plate 9 rotates along the stirring paddle 8, the scraping plate 9 will gradually contact the water filter port 12. By contacting the water filter port 12 through the anti-wear sleeve 21, the wear generated between the scraping plate 9 and the water filter port 12 can be effectively reduced, and the anti-wear sleeve 21 can scrape off the sediment attached to the water filter port 12 to ensure the fluidity of the water filter port 12.

[0037] As a further solution of the present invention, a sealing cover is fixedly connected to the output shaft of the telescopic member 5, and the sealing cover is used for sealing connection with the inner wall of the top end of the sealing plate 2. Through the sealing cover, the telescopic member 5 can be sealed with the sealing plate 2 to prevent the pungent smell generated during the wastewater reaction from escaping from the inside of the reaction barrel 1.

[0038] As a further solution of the present invention, the curvature of the side wall of the stirring paddle 8 is the same as the curvature of the positioning rod 11. In this way, when the convex shaft 16 slides along the positioning rod 11, it can ensure that the scraping plate 9 always contacts the side wall of the stirring paddle 8 to clean the sediment inside the stirring paddle 8.

[0039] Working principle: open the feed plate 3 to add the spraying wastewater into the reaction barrel 1, and then add an appropriate amount of chemical agents to the wastewater to produce a flocculation reaction to generate a precipitate. When the wastewater reacts with the chemical agents in the reaction barrel 1 to generate a precipitate, start the drive motor 6 to drive the transmission shaft 24 to rotate at a low speed through the telescopic part 5, and the precipitation barrel 7 drives the stirring paddle 8 to rotate at a low speed so that the wastewater and the chemical agents are stirred and fully mixed; since the stirring paddle 8 is provided with a water filter port 12, the stirring paddle 8 will filter the precipitate in the wastewater into the stirring paddle 8 during the rotation process, and the wastewater will be It can pass through the water filter 12, and while the stirring paddle 8 is rotating, the convex shaft 16 is slidably connected to the closed slide rail 20. At this time, the convex shaft 16 is slidably connected to the widest part of the closed slide rail 20. As the stirring paddle 8 slides, the convex shaft 16 gradually slides along the closed slide rail 20 toward the inside of the reaction barrel 1, so that the convex shaft 16 drives the slider 15 to slide along the positioning rod 11, and the slider 15 pulls the scraper plate 9 and the baffle plate 18 to slide together, so that the scraper plate 9 and the baffle plate 18 can push the sediment inside the stirring paddle 8 to the connection between the stirring paddle 8 and the sedimentation barrel 7.

[0040] As the scraper plate 9 continues to slide, it will gradually come into contact with the docking plate 13 and push the docking plate 13 to rotate around the connecting shaft 23, so that the baffle 14 slides toward the inside of the sedimentation barrel 7, thereby opening an opening on the side wall of the sedimentation barrel 7, and the baffle plate 18 will first penetrate into the sedimentation barrel 7 along the opening on the side wall of the sedimentation barrel 7. The advantage of this is that when the opening on the side wall of the sedimentation barrel 7 begins to open, the baffle plate 18 will dock with the sedimentation barrel 7, preventing the sediment collected in the sedimentation barrel 7 from flowing back into the reaction barrel 1, and then as the scraper plate 9 gradually slides, the scraper plate 9 will be The sediment inside is pushed into the sedimentation barrel 7. At this time, the sedimentation barrel 7 has rotated ninety degrees, that is, the convex shaft 16 has slid to the innermost side of the reaction barrel 1 along the closed slide rail 20. The sedimentation barrel 7 continues to rotate, and the convex shaft 16 will slide along the closed slide rail 20 to the outside of the reaction barrel 1. The convex shaft 16 drives the slider 15 and the scraper plate 9 to slide in the opposite direction and reset. After the docking plate 13 is separated from the squeezing of the scraper plate 9, it is reclosed inside the sedimentation barrel 7 under the action of the reset elastic force to seal the sedimentation barrel 7. The scraper plate 9 is reset to push the sediment inside the stirring paddle 8 into the sedimentation barrel 7.

Claims

1. An automotive plastic part spraying workshop wastewater treatment system, including a reaction barrel (1), a sealing plate (2) is arranged at the top of the reaction barrel (1), and it is characterized in that: A separation component is arranged inside the reaction barrel (1). The separation component includes a precipitation barrel (7). The precipitation barrel (7) is rotatably arranged inside the reaction barrel (1). A plurality of stirring paddles (8) are fixedly connected to the side wall of the precipitation barrel (7). A water filtering port (12) is formed at the end of the stirring paddle (8) close to the precipitation barrel (7). The separation component further includes a scraping plate (9) arranged inside the stirring paddle (8). The scraping plate (9) is used to separate the precipitate from the inside of the reaction barrel (1) along the stirring paddle (8) into the inside of the precipitation barrel (7).

2. The wastewater treatment system for an automotive plastic part spraying workshop according to claim 1, wherein: The separation component further includes a connecting frame (17). The connecting frame (17) is sleeved on the top of the scraping plate (9). A positioning rod (11) is fixedly connected to the precipitation barrel (7). A sliding block (15) is slidably connected to the positioning rod (11). The top end of the sliding block (15) is fixedly connected to the connecting frame (17). A convex shaft (16) is fixedly connected to one end of the sliding block (15). Closing sliding rails (20) for docking with the convex shaft (16) are respectively formed on the inner walls of the reaction barrel (1) and the sealing plate (2). A baffle (14) is slidably connected inside the precipitation barrel (7). A docking plate (13) is fixedly connected to the top end of the baffle (14). A connecting shaft (23) for its reset is slidably connected inside the baffle (14).

3. The wastewater treatment system for an automotive plastic part spraying workshop according to claim 1, characterized in that: A feeding plate (3) is slidably connected to the top end of the sealing plate (2). A fixing frame (4) is fixedly connected to the top end of the sealing plate (2). A telescopic member (5) is slidably connected inside the fixing frame (4). A driving motor (6) is fixedly connected to the top end of the fixing frame (4). The output shaft of the driving motor (6) passes through the fixing frame (4) and is fixedly connected to the top end of the telescopic member (5).

4. The wastewater treatment system for an automotive plastic part spraying workshop according to claim 3, characterized in that: A sliding ring (26) is slidably connected inside the precipitation barrel (7). A closing component (25) is arranged inside the sliding ring (26). One end of the closing component (25) is fixedly connected to the inner wall of the sliding ring (26). The rotating end of the closing component (25) is fixedly connected to a transmission shaft (24). The top end of the transmission shaft (24) is fixedly connected to the output shaft of the telescopic member (5).

5. The wastewater treatment system for an automotive plastic part spraying workshop according to claim 1, wherein: An anti-wear sleeve (21) for reducing wear is sleeved on one end of the scraping plate (9).

6. The wastewater treatment system for an automotive plastic part spraying workshop according to claim 1, characterized in that: A chute (19) is formed at the bottom end of the stirring paddle (8). A baffle plate (18) is slidably connected to the chute (19). A connecting plate (10) for slidably connecting with the baffle plate (18) is fixedly connected to one end of the stirring paddle (8). A clamping block (22) is fixedly connected to the side wall of the baffle plate (18). One end of the scraping plate (9) is slidably connected to the clamping block (22).

7. The wastewater treatment system for an automotive plastic part spraying workshop according to claim 3, wherein: A sealing cover is fixedly connected to the output shaft of the telescopic member (5). The sealing cover is used for sealing connection with the inner wall of the top end of the sealing plate (2).

8. The wastewater treatment system for an automotive plastic part spraying workshop according to claim 2, wherein: The curvature of the side wall of the stirring paddle (8) is the same as that of the positioning rod (11).

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