Painting pigment wastewater purification treatment device and process

Abstract

The invention relates to the field of pigment wastewater treatment, particularly discloses a painting pigment wastewater purification treatment device and process, and aims to solve the problems that no effective and stable treatment device is provided for existing painting pigment wastewater, and the environment is easily polluted by direct discharge. The sewage treatment device comprises a shell, a treatment box, a flocculation tank, a treatment tank, a sewage discharge tank, a mounting frame, a screw rod, a stirring rod, a driving assembly, a semicircular frame, a baffle, a limiting table, a lower rotating shaft and a scraper, the upper end of the lower rotating shaft is connected with an upper rotating shaft, the upper rotating shaft is connected with a worm gear, the semicircular frame is provided with a linkage assembly, and the linkage assembly is used for driving the upper rotating shaft to rotate when the semicircular frame moves upwards. And a cleaning assembly is arranged on the semicircular frame, and the cleaning assembly is used for cleaning the surface of the scraper blade when the scraper blade rotates. The device has the characteristics that the painting pigment wastewater can be effectively treated, and the treatment effect is excellent.

Description

Technical Field

[0001] The present invention relates to the field of pigment wastewater treatment, in particular to a painting pigment wastewater purification treatment device and process. Background Art

[0002] Paint pigment wastewater has a complex composition, containing a large number of pigment particles (organic / inorganic pigments), binders (resins, gelatin, etc.), solvents (water or organic solvents), dispersants, preservatives, etc. It has the characteristics of high chroma, high suspended solids (SS), high COD (chemical oxygen demand), etc. Some pigments (such as inorganic pigments containing heavy metals) may also be toxic.

[0003] Painting pigment wastewater generally cannot be dumped directly. It needs to undergo preliminary treatment of suspended particulate matter and toxic chemicals before it can be discharged. However, due to the lack of small-scale painting pigment wastewater treatment equipment, the existing painting pigment wastewater is basically discharged directly after use, which will cause great pollution to the environment.

[0004] Publication number CN113480049A is a device for treating painting pigment wastewater and its treatment process, which discloses "a device for treating painting pigment wastewater and its treatment process, comprising a paint barrel, a filtering device and a flocculation material bag, the paint barrel being provided with a fixed component, the filtering device being installed on the fixed component; the flocculation material bag is mixed with the pigment wastewater in the paint barrel and then filtered through the filtering device. The structure of the present invention is scientific and reasonable, and it is safe and convenient to use. Compared with the previous method of pouring wastewater outdoors or into the sewer after washing painting pigment pens, the treatment device does not need to pour dirty wastewater outdoors or into the sewer. It only needs to flocculate and filter the wastewater to obtain clean water, thereby realizing the function of washing painting brushes multiple times with one bucket of clean water, which not only solves the problem that dirty brush washing water containing pigment particles will pollute the outdoor environment, but also solves the problem that pigment particles will clog the sewer."

[0005] Although the above technical solution can treat the paint wastewater to a certain extent through flocculation, it cannot effectively clean the device. After a long period of accumulation of flocculants and sediments, it will affect the flocculation and sedimentation treatment effect of the equipment. Therefore, a paint wastewater purification device and process are proposed. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the present invention proposes a painting pigment wastewater purification treatment device and process, which can treat the painting pigment wastewater by flocculation, precipitation and chemical treatment, and then discharge it, which is beneficial to protecting the environment. At the same time, the device is easy to clean and has a good treatment effect.

[0007] In order to solve the above technical problems, the basic technical solutions proposed by the present invention are:

[0008] A painting pigment wastewater purification and treatment device comprises a shell, a treatment box is provided in the shell, a flocculation tank and a treatment tank are respectively provided on both sides of the treatment box, and a sewage tank is provided in the middle of the treatment box, and a mounting frame is connected to the upper end of the sewage tank, the mounting frame extends to the upper part of the flocculation tank and the treatment tank on both sides, and a screw rod is rotatably mounted above the flocculation tank, and a stirring rod is rotatably mounted above the sewage tank, a driving assembly is provided on the mounting frame, and the driving assembly is used to drive each screw rod and each stirring rod to rotate, a semicircular frame is slidingly sleeved in the flocculation tank, the semicircular frame is threadedly sleeved on the outer side of the screw rod, and a baffle is rotatably connected to the side of the semicircular frame close to the sewage tank through a spring hinge;

[0009] The semicircular frame is connected to a limit platform for limiting the baffle, the semicircular frame is rotatably connected to a lower rotating shaft, and one side of the lower rotating shaft is radially connected to a scraper that fits the lower inner wall of the semicircular frame, the upper end of the lower rotating shaft is connected to an upper rotating shaft, and the upper rotating shaft is connected to a worm gear, a linkage component is provided on the semicircular frame, the linkage component is used to drive the upper rotating shaft to rotate when the semicircular frame moves upward, and a cleaning component is provided on the semicircular frame, the cleaning component is used to clean the surface of the scraper when it rotates.

[0010] Preferably, the mounting frame is connected to the front and rear side edges of the sewage tank, and both sides of the upper end of each mounting frame extend to the top of the flocculation tank and the treatment tank on both sides, and are rotatably mounted with a screw rod and a stirring rod at the extended end. The lower end of the screw rod is also rotatably connected to the lower inner wall of the flocculation tank, and the lower end of the stirring rod is also rotatably connected to the lower inner wall of the treatment tank. Addition ports are provided on both sides of the upper end face of the outer shell, and the addition ports on both sides correspond to the flocculation tank and the treatment tank above and below, respectively. A sewage outlet is provided in the sewage tank, a water pump is installed between the flocculation tank and the treatment tank, and a liquid discharge port is provided on the treatment tank.

[0011] Preferably, the drive assembly includes a pulley, a belt, a mounting seat, and a drive motor, the pulley is connected to the upper end of the screw or the stirring rod, the belt is sleeved on the outside of the pulley connecting the screw and the upper end of the stirring rod on the same side of the front and rear, the mounting seat is connected to the extension end of the mounting frame above the treatment tank, the drive motor is installed on the mounting seat, and the output end of the drive motor is connected to the upper side of the pulley connected to the upper end of the stirring rod.

[0012] Preferably, the surface of the baffle slides in contact with the inner wall of the flocculation tank and the upper end surface of the sewage tank, and side plates are connected to both sides of the baffle, and the side plates slide in contact with the inner wall of the semicircular frame.

[0013] Preferably, both side surfaces of the semicircular frame are rotatably connected to guide plates via scroll hinges, and the lower end of the semicircular frame is connected to a limit seat for limiting the lower end surface of the guide plate. The two sides of the baffle are connected to limit blocks, and the limit blocks extend to the two outer sides of the semicircular frame and cooperate with the lower end surfaces of the guide plates rotatably connected on both sides of the semicircular frame.

[0014] Preferably, the linkage assembly includes a frame plate, a sleeve, a rotating shaft, a gear, a skateboard, a rack, and a pressure plate. The frame plate is connected to the semicircular frame along the radial direction of the semicircular frame, the sleeve is connected to the frame plate, the rotating shaft is rotatably sleeved in the sleeve, and a worm engaged with the worm gear is centered on the surface of the rotating shaft. The gear is connected to both ends of the rotating shaft, the skateboard is slidably connected to the frame plate, the rack is connected to the skateboard and meshes with the gear, the pressure plate is connected to the mounting frame, and the lower end face of the pressure plate cooperates and conflicts with the upper end face of the skateboard.

[0015] Preferably, a guide slide is connected to the frame plate, the slide plate is slidably sleeved on the outer side of the guide slide, and a spring sleeved on the outer side of the guide slide is connected between the slide plate and the clamping plate.

[0016] Preferably, the cleaning assembly includes a slide rail, a slide rod, and a scraper strip. The slide rail is arranged radially along the semicircular frame and connected to the semicircular frame. A slide rod is connected between the inner walls at both ends of the slide rail. The upper end of the scraper strip is slidably connected to the slide rail and slidably sleeved on the outer side surface of the slide rod. A spring 2 sleeved on the outside of the slide rod is connected between the scraper strip and the inner wall of the slide rail.

[0017] Preferably, both ends of the slide rail are symmetrically provided with slide grooves, the upper end of the scraper strip is slidably sleeved in the slide groove, and a slide rod is connected between the inner walls on both sides of each slide groove, and a spring 2 is connected between the scraper strips on both sides away from each other and the inner wall of the slide groove.

[0018] A painting pigment wastewater purification process comprises the following steps:

[0019] Step 1: First, add the painting pigment wastewater to the flocculation tank on the left and add flocculant, then let it stand to flocculate and settle the precipitable and flocculable substances in the painting pigment wastewater into the semicircular frame;

[0020] Step 2: After flocculation and sedimentation are completed, the solution in the flocculation tank is pumped into the treatment tank, and chemical treatment reagents are added to the treatment tank. Then, the drive component is started to drive the stirring rod to rotate, so that the chemical treatment reagents added to the treatment tank can be quickly mixed with the solution in it;

[0021] Step 3: When the driving assembly drives the stirring rod to rotate, it can also drive the screw to rotate, thereby driving the semicircular frame to move upward, so that the semicircular frame gradually moves up to the top of the flocculation tank, and then the baffle cancels the interference with the inner wall of the flocculation tank and flips into the sewage tank under the elastic force of the spring hinge until it is limited by the limit table and tilted. At this time, the sediment and flocculants contained in the semicircular frame can flow into the sewage tank;

[0022] Step 4: As the semicircular frame continues to move upward, the linkage assembly will be activated, which will drive the worm gear to rotate, causing the upper shaft, scraper and lower shaft to rotate, so that the scraper can scrape the inner wall of the semicircular frame to completely scrape off the sludge inside and discharge it into the sewage tank;

[0023] Step 5: During the rotation of the scraper, its surface will interact with the cleaning component, and the cleaning component will clean the scraper to improve the cleaning effect of the scraper when scraping the semicircular frame.

[0024] The beneficial effects of the present invention are:

[0025] 1. The technical solution of the present invention is to dump the painting pigment wastewater into a flocculation tank through a feeding port, and then add a corresponding flocculant through the feeding port, so that the painting pigment wastewater can be flocculated and precipitated in the flocculation tank. When the flocculation and precipitation are completed, the liquid in the flocculation tank can be pumped into a treatment tank by a water pump, and the corresponding chemical treatment reagent is added through the feeding port above the treatment tank to chemically treat the solution after flocculation and precipitation, thereby further improving the treatment effect of the painting pigment wastewater and ensuring the environmental friendliness of the discharge.

[0026] 2. The technical solution of the present invention drives the stirring rod to rotate by the driving component. After adding the chemical treatment reagent to the solution in the treatment tank, the reaction can be accelerated by the rotation of the stirring rod. At the same time, when the driving component drives the stirring rod to rotate, it also drives the screw to rotate, and then drives the semicircular frame to move upward. During the process, the baffle will gradually cancel the contact with the inner wall of the flocculation tank and rotate into the sewage tank under the action of the spring hinge until it contacts the limit platform and reaches an inclined state. During the upward movement of the semicircular frame, the linkage component will also drive the scraper to rotate, thereby achieving the rotational scraping of the inner wall of the semicircular frame, and then the flocculation and sediment contained in the semicircular frame are all diverted into the sewage tank through the baffle.

[0027] 3. The technical solution of the present invention uses a cleaning component so that while the scraper is driven to rotate by the linkage component, it can also cooperate with the scraping strip to achieve self-cleaning through the scraping strip and its own surface, thereby improving the cleaning effect of the scraper on the inner wall of the semicircular frame during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 is a cross-sectional view of the structure of the present invention;

[0030] Figure 3 is a schematic diagram of the internal structure of the housing of the present invention;

[0031] Figure 4 A schematic diagram of the internal structure of the processing box of the present invention;

[0032] Figure 5 It is a schematic diagram of the internal structure of the flocculation tank and the driving assembly of the present invention;

[0033] Figure 6 It is a schematic diagram of the relevant structure on the semicircular frame of the present invention;

[0034] Figure 7 It is a bottom view schematic diagram of the relevant structure on the semicircular frame of the present invention;

[0035] Figure 8 This is a schematic structural diagram of the cleaning component of the present invention;

[0036] Figure 9 It is a structural schematic diagram of the processing box of the present invention.

[0037] Description of reference numerals:

[0038] 1. Outer casing; 2. Dosing port; 3. Treatment box; 4. Flocculation tank; 5. Treatment tank; 6. Sewage tank; 7. Mounting frame; 8. Screw; 9. Agitator rod; 10. Pulley; 11. Belt; 12. Mounting seat; 13. Drive motor; 14. Semicircular frame; 15. Baffle; 16. Side plate; 17. Limit table; 18. Guide plate; 19. Limit seat; 20. Limit block; 21. Lower shaft; 22. Scraper; 23. Upper shaft; 24. Worm gear; 25. Frame; 26. Sleeve; 27. Shaft; 28. Worm; 29. ​​Gear; 30. Guide slide; 31. Slide plate; 32. Rack; 33. Spring 1; 34. Pressure plate; 35. Slide rail; 36. Slide; 37. Scraper; 38. Spring 2. DETAILED DESCRIPTION

[0039] The following will be combined with the Figure 1 To the attached Figure 9 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0040] Example 1:

[0041] like Figure 1-9 As shown, the present invention discloses a painting pigment wastewater purification treatment device, comprising a shell 1, a treatment box 3 is provided in the shell 1, a flocculation tank 4 and a treatment tank 5 are respectively provided on both sides of the treatment box 3, and a sewage tank 6 is provided in the middle of the treatment box 3, and the upper end of the sewage tank 6 is connected to a mounting frame 7, characterized in that the mounting frame 7 extends to the top of the flocculation tank 4 and the treatment tank 5 on both sides, and is rotatably sleeved with a screw rod 8 above the flocculation tank 4, and is rotatably sleeved with a stirring rod 9 above the sewage tank 6, and a driving assembly is provided on the mounting frame 7, and the driving assembly is used to drive each screw rod 8 and each stirring rod 9 to rotate, a semicircular frame 14 is slidingly sleeved in the flocculation tank 4, the semicircular frame 14 is threadedly sleeved on the outer side of the screw rod 8, and the side of the semicircular frame 14 close to the sewage tank 6 is rotatably connected to a baffle 15 through a spring hinge;

[0042] The semicircular frame 14 is connected to a limit platform 17 for limiting the baffle 15, and the semicircular frame 14 is rotatably connected to a lower rotating shaft 21, and one side of the lower rotating shaft 21 is radially connected to a scraper 22 that fits the lower inner wall of the semicircular frame 14, the upper end of the lower rotating shaft 21 is connected to an upper rotating shaft 23, and the upper rotating shaft 23 is connected to a worm gear 24, and a linkage component is provided on the semicircular frame 14, which is used to drive the upper rotating shaft 23 to rotate when the semicircular frame 14 moves upward, and a cleaning component is provided on the semicircular frame 14, which is used to clean its surface when the scraper 22 rotates.

[0043] The mounting frame 7 is connected to the front and rear edges of the sewage tank 6. Both sides of the upper end of each mounting frame 7 extend to the top of the flocculation tank 4 and the treatment tank 5 on both sides, and are rotatably mounted with a screw rod 8 and a stirring rod 9 at the extension end. The lower end of the screw rod 8 is also rotatably connected to the lower inner wall of the flocculation tank 4, and the lower end of the stirring rod 9 is also rotatably connected to the lower inner wall of the treatment tank 5. Addition ports 2 are provided on both sides of the upper end face of the outer shell 1, and the addition ports 2 on both sides correspond to the flocculation tank 4 and the treatment tank 5 above and below, respectively. A sewage outlet is provided in the sewage tank 6, a water pump is installed between the flocculation tank 4 and the treatment tank 5, and a liquid discharge port is provided on the treatment tank 5.

[0044] The setting of the water pump facilitates the pumping of the painting pigment wastewater that has undergone flocculation and sedimentation treatment in the flocculation tank 4 into the treatment tank 5, and the setting of the addition port 2 facilitates the addition of painting pigment wastewater into the flocculation tank 4 through the addition port 2 above the flocculation tank 4, and also facilitates the addition of chemical treatment reagents into the painting pigment wastewater that has undergone flocculation and sedimentation in the treatment tank 5 through the addition port 2 above the treatment tank 5 for chemical treatment.

[0045] By pouring the painting pigment wastewater into the flocculation tank 4 through the addition port 2 and then adding the corresponding flocculant through the addition port 2, the painting pigment wastewater can be flocculated and precipitated in the flocculation tank 4. When the flocculation and precipitation are completed, the liquid in the flocculation tank 4 can be pumped into the treatment tank through a water pump, and the corresponding chemical treatment reagent is added through the addition port 2 above the treatment tank 5 to chemically treat the solution after flocculation and precipitation, thereby further improving the effect of the painting pigment wastewater treatment and ensuring the environmental friendliness of the discharge.

[0046] The surface of the baffle 15 fits and slides with the inner wall of the flocculation tank 4 and the upper end surface of the sewage tank 6. Side panels 16 are connected to both sides of the baffle 15, and the side panels 16 fit and slide with the inner wall of the semicircular frame 14, so that when the semicircular frame 14 is inside the flocculation tank 4, the inner wall of the flocculation tank 4 contacts the baffle 15, so that the baffle 15 is in a vertical state and can form an enclosed frame with the side wall of the semicircular frame 14. When the semicircular frame 14 moves up to the top of the flocculation tank 4, the baffle 15 is not limited by the inner wall of the flocculation tank 4, and will rotate under the action of the spring hinge until it contacts the limit platform 17 and is tilted toward the sewage tank 6, so as to facilitate the diversion of flocculation and sediment contained in the semicircular frame 14 into the sewage tank 6.

[0047] The two side surfaces of the semicircular frame 14 are rotatably connected to the guide plates 18 through scroll hinges. The lower end of the semicircular frame 14 is connected to a limit seat 19 that limits the lower end surface of the guide plate 18. The two sides of the baffle 15 are connected to limit blocks 20, and the limit blocks 20 extend to the two outer sides of the semicircular frame 14 and cooperate with the lower end surfaces of the guide plates 18 rotatably connected on both sides of the semicircular frame 14. The setting of the guide plate 18 can prevent the flocculation and sedimentation contained in the semicircular frame 14 from seeping out from the two sides of the baffle 15 in the process of diverting the flocculation and sedimentation into the sewage tank 6. The side plates 16 can also play the same role. However, when the baffle 15 conflicts with the inner wall of the flocculation tank 4 and rotates to a vertical state, the limit blocks 20 on both sides of the baffle 15 will conflict with the conflict of the guide plate 18, and drive it to rotate and return to the two sides of the semicircular frame 14.

[0048] Example 2:

[0049] like Figure 1-9 As shown, the present invention discloses a painting pigment wastewater purification treatment device. Compared with the first embodiment, this embodiment discloses the structure of the driving component.

[0050] The driving assembly includes a pulley 10, a belt 11, a mounting base 12, and a driving motor 13. The pulley 10 is connected to the upper end of the screw 8 or the stirring rod 9. The belt 11 is mounted on the outside of the pulley 10 connected to the upper end of the screw 8 and the stirring rod 9 on the same side of the front and rear. The mounting base 12 is connected to the extension end of the mounting frame 7 above the treatment pool 5. The driving motor 13 is installed on the mounting base 12, and the output end of the driving motor 13 is connected to the upper side of the pulley 10 connected to the upper end of the stirring rod 9.

[0051] In this way, the driving motor 13 is running, and the belt 11 can be used to drive each screw rod 8 and the stirring rod 9 to rotate synchronously, so that while the stirring rod 9 stirs the solution in the treatment tank 5, the screw rod 8 can also drive the semicircular frame 14 in the flocculation tank 4 to slide upward until it slides to the top of the flocculation tank 4.

[0052] Example 3:

[0053] like Figure 1-9 As shown, the present invention discloses a painting pigment wastewater purification treatment device. Compared with the second embodiment, this embodiment discloses the structure of the driving component.

[0054] The linkage assembly includes a frame plate 25, a sleeve 26, a rotating shaft 27, a gear 29, a slide 31, a rack 32, and a pressure plate 34. The frame plate 25 is connected to the semicircular frame 14 along the radial direction of the semicircular frame 14, the sleeve 26 is connected to the frame plate 25, the rotating shaft 27 is rotatably sleeved in the sleeve 26, and the surface of the rotating shaft 27 is centrally sleeved with a worm 28 that meshes with the worm gear 24. The gear 29 is connected to both ends of the rotating shaft 27, the slide 31 is slidably connected to the frame plate 25, the rack 32 is connected to the slide 31 and meshes with the gear 29, the pressure plate 34 is connected to the mounting frame 7, and the lower end surface of the pressure plate 34 cooperates and conflicts with the upper end surface of the slide 31.

[0055] A guide slide 30 is connected to the frame plate 25 , a slide plate 31 is slidably sleeved on the outer side of the guide slide 30 , and a spring 33 sleeved on the outer side of the guide slide 30 is connected between the slide plate 31 and the clamping plate 25 .

[0056] When the semicircular frame 14 moves up to the point where the slide 31 contacts the pressure plate 34, the slide 31 slides downward relative to the semicircular frame 14, driving the rack 32 downward, and through the meshing connection, driving the gear 29, the rotating shaft 27 and the worm 28 to rotate, and then the turbine 24 rotates, driving the upper rotating shaft 23, the lower rotating shaft 21 and the scraper 22 to rotate, and then the rotation of the scraper 22 can scrape and clean the inner wall of the semicircular frame 14, and guide the flocculation and sediment contained therein into the sewage tank 6 through the baffle 15.

[0057] Example 4:

[0058] like Figure 1-9As shown, the present invention discloses a painting pigment wastewater purification treatment device. Compared with the third embodiment, this embodiment discloses the structure of the cleaning component.

[0059] The cleaning assembly includes a slide rail 35, a slide rod 36, and a scraper bar 37. The slide rail 35 is arranged radially along the semicircular frame 14 and is connected to the semicircular frame 14. The slide rod 36 is connected between the inner walls at both ends of the slide rail 35. The upper end of the scraper bar 37 is slidably connected to the slide rail 35 and slidably sleeved on the outer side surface of the slide rod 36. A spring 38 sleeved on the outside of the slide rod 36 is connected between the scraper bar 37 and the inner wall of the slide rail 35.

[0060] Both ends of the slide rail 35 are symmetrically provided with slide grooves, the upper end of the scraper 37 is slidably sleeved in the slide groove, and a slide rod 36 is connected between the inner walls of both sides of each slide groove, and a spring 2 38 is connected between the scraper 37 on both sides away from each other and the inner wall of the slide groove.

[0061] During the rotation, the scraper 22 will come into contact with the scraper bar 37, and the scraper bar 37 will scrape and clean its surface, thereby ensuring the cleanliness of the scraper 22, improving its cleaning and scraping effect on the inner wall of the semicircular frame 14, and ensuring that the device has excellent treatment effect in the long-term treatment of painting pigment wastewater.

[0062] Embodiment 5:

[0063] like Figure 1-9 As shown, the present invention discloses a painting pigment wastewater purification process, comprising the following steps:

[0064] Step 1: First, add the painting pigment wastewater into the flocculation tank 4 on the left and add flocculant, then let it stand to flocculate and precipitate the precipitable and flocculable substances in the painting pigment wastewater into the semicircular frame 14;

[0065] Step 2: After flocculation and sedimentation are completed, the solution in the flocculation tank 4 is pumped into the treatment tank 5, and a chemical treatment reagent is added to the treatment tank 5. Then, the drive assembly is started to drive the stirring rod 9 to rotate, so that the chemical treatment reagent added to the treatment tank 5 can be quickly mixed with the solution therein;

[0066] Step 3: When the driving assembly drives the stirring rod 9 to rotate, it can also drive the screw rod 8 to rotate, thereby driving the semicircular frame 14 to move upward, so that the semicircular frame 14 gradually moves up to the top of the flocculation tank 4, and then the baffle 15 cancels the interference with the inner wall of the flocculation tank 4 and flips into the sewage tank 6 under the elastic force of the spring hinge until it is limited by the limit platform 17 to tilt and rotate. At this time, the sediment and flocculants contained in the semicircular frame 14 can flow into the sewage tank 6;

[0067] Step 4: As the semicircular frame 14 continues to move upward, the linkage assembly will be activated, thereby driving the worm gear 24 to rotate, causing the upper rotating shaft 23, the scraper 22 and the lower rotating shaft 21 to rotate. The scraper 22 scrapes the inner wall of the semicircular frame 14 to completely scrape off the sludge inside and discharge it into the sewage tank 6;

[0068] Step 5: During the rotation of the scraper 22 , its surface will interact with the cleaning component, and the cleaning component will clean the scraper 22 to improve the cleaning effect of the scraper 22 when scraping the semicircular frame 14 .

[0069] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A painting pigment wastewater purification treatment device, comprising a housing (1), a treatment box (3) is provided inside the housing (1), a flocculation tank (4) and a treatment tank (5) are provided on both sides of the treatment box (3), and a sewage tank (6) is provided in the middle of the treatment box (3), and the upper end of the sewage tank (6) is connected to a mounting frame (7), characterized in that: The mounting frame (7) extends to the top of the flocculation tank (4) and the treatment tank (5) on both sides, and a screw rod (8) is rotatably mounted on the top of the flocculation tank (4), and a stirring rod (9) is rotatably mounted on the top of the sewage tank (6). A driving assembly is provided on the mounting frame (7), and the driving assembly is used to drive each screw rod (8) and each stirring rod (9) to rotate. A semicircular frame (14) is provided on the sliding sleeve in the flocculation tank (4). The semicircular frame (14) is threadedly mounted on the outer side of the screw rod (8), and a baffle (15) is rotatably connected to the side of the semicircular frame (14) close to the sewage tank (6) through a spring hinge. The semicircular frame (14) is connected to a limiting platform (17) for limiting the baffle (15); the semicircular frame (14) is rotatably connected to a lower rotating shaft (21), and one side of the lower rotating shaft (21) is radially connected to a scraper (22) that is in contact with the lower inner wall of the semicircular frame (14); the upper end of the lower rotating shaft (21) is connected to an upper rotating shaft (23), and the upper rotating shaft (23) is connected to a worm gear (24); a linkage component is provided on the semicircular frame (14), and the linkage component is used to drive the upper rotating shaft (23) to rotate when the semicircular frame (14) moves upward; a cleaning component is provided on the semicircular frame (14), and the cleaning component is used to clean the surface of the scraper (22) when it rotates.

2. A paint wastewater purification treatment device according to claim 1, characterized in that: The mounting frame (7) is connected to the front and rear side edges of the sewage tank (6). Both sides of the upper end of each mounting frame (7) extend to the top of the flocculation tank (4) and the treatment tank (5) on both sides, and are rotatably mounted with a screw rod (8) and a stirring rod (9) at the extension end. The lower end of the screw rod (8) is also rotatably connected to the lower inner wall of the flocculation tank (4), and the lower end of the stirring rod (9) is also rotatably connected to the lower inner wall of the treatment tank (5). Both sides of the upper end surface of the shell (1) are provided with a feeding port (2). The feeding ports (2) on both sides correspond to the flocculation tank (4) and the treatment tank (5) above and below. A sewage outlet is provided in the sewage tank (6). A water pump is installed between the flocculation tank (4) and the treatment tank (5), and a liquid discharge port is provided on the treatment tank (5).

3. A paint wastewater purification treatment device according to claim 1, characterized in that: The driving assembly comprises a pulley (10), a belt (11), a mounting seat (12), and a driving motor (13); the pulley (10) is connected to the upper end of the screw rod (8) or the stirring rod (9); the belt (11) is sleeved on the outside of the pulley (10) connected to the upper end of the screw rod (8) and the stirring rod (9) on the same side of the front and rear; the mounting seat (12) is connected to the extension end of the mounting frame (7) above the treatment tank (5); the driving motor (13) is mounted on the mounting seat (12), and the output end of the driving motor (13) is connected to the upper side of the pulley (10) connected to the upper end of the stirring rod (9).

4. A paint wastewater purification treatment device according to claim 1, characterized in that: The surface of the baffle (15) fits and slides with the inner wall of the flocculation tank (4) and the upper end surface of the sewage tank (6). Side plates (16) are connected to both sides of the baffle (15), and the side plates (16) fit and slide with the inner wall of the semicircular frame (14).

5. The paint wastewater purification treatment device according to claim 1, characterized in that: Both sides of the semicircular frame (14) are rotatably connected to the guide plates (18) via scroll hinges. The lower end of the semicircular frame (14) is connected to a limit seat (19) for limiting the lower end surface of the guide plates (18). The two sides of the baffle (15) are connected to limit blocks (20), and the limit blocks (20) extend to the two outer sides of the semicircular frame (14) and cooperate with the lower end surfaces of the guide plates (18) rotatably connected to the two sides of the semicircular frame (14).

6. The painting pigment wastewater purification treatment device according to claim 1, characterized in that: The linkage assembly includes a frame plate (25), a sleeve (26), a rotating shaft (27), a gear (29), a slide plate (31), a rack (32), and a pressure plate (34). The frame plate (25) is connected to the semicircular frame (14) along the radial direction of the semicircular frame (14). The sleeve (26) is connected to the frame plate (25). The rotating shaft (27) is rotatably sleeved in the sleeve (26). A worm (28) meshing with the worm gear (24) is sleeved in the center of the surface of the rotating shaft (27). The gear (29) is connected to both ends of the rotating shaft (27). The slide plate (31) is slidably connected to the frame plate (25). The rack (32) is connected to the slide plate (31) and meshed with the gear (29). The pressure plate (34) is connected to the mounting frame (7), and the lower end surface of the pressure plate (34) is in contact with the upper end surface of the slide plate (31).

7. A paint wastewater purification treatment device according to claim 6, characterized in that: The frame plate (25) is connected to a guide slide bar (30), the slide plate (31) is slidably sleeved on the outer side of the guide slide bar (30), and a spring (33) sleeved on the outer side of the guide slide bar (30) is connected between the slide plate (31) and the clamping plate (25).

8. The paint wastewater purification device according to claim 1, characterized in that: The cleaning assembly includes a slide rail (35), a slide rod (36), and a scraper (37). The slide rail (35) is arranged radially along the semicircular frame (14) and is connected to the semicircular frame (14). The slide rod (36) is connected between the inner walls at both ends of the slide rail (35). The upper end of the scraper (37) is slidably connected in the slide rail (35) and slidably sleeved on the outer side surface of the slide rod (36). A spring (38) sleeved on the outer side of the slide rod (36) is connected between the scraper (37) and the inner wall of the slide rail (35).

9. The paint wastewater purification device according to claim 8, characterized in that: Both ends of the slide rail (35) are symmetrically provided with slide grooves, the upper end of the scraper (37) is slidably sleeved in the slide groove, and a slide rod (36) is connected between the inner walls of both sides of each slide groove, and a spring (38) is connected between the scraper (37) on both sides away from each other and the inner wall of the slide groove.

10. A painting pigment wastewater purification process, based on a painting pigment wastewater purification device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: first, add the painting pigment wastewater into the flocculation tank (4) on the left and add flocculant, then let it stand to flocculate and precipitate the precipitable and flocculable substances in the painting pigment wastewater into the semicircular frame (14); Step 2: After flocculation and sedimentation are completed, the solution in the flocculation tank (4) is pumped into the treatment tank (5), and a chemical treatment reagent is added to the treatment tank (5). Then, the driving component is started to drive the stirring rod (9) to rotate, so that the chemical treatment reagent added to the treatment tank (5) can be quickly mixed with the solution therein; Step 3: When the driving assembly drives the stirring rod (9) to rotate, it can also drive the screw (8) to rotate, so as to drive the semicircular frame (14) to move upward, so that the semicircular frame (14) gradually moves upward to the top of the flocculation tank (4), and then the baffle (15) cancels the interference with the inner wall of the flocculation tank (4) and flips into the sewage tank (6) under the elastic force of the spring hinge until it is limited to the limit table (17) and tilted. At this time, the sediment and flocculants contained in the semicircular frame (14) can flow into the sewage tank (6); Step 4: As the semicircular frame (14) continues to move upward, the linkage assembly will be activated, thereby driving the worm gear (24) to rotate, causing the upper rotating shaft (23), the scraper (22) and the lower rotating shaft (21) to rotate, so that the scraper (22) scrapes the inner wall of the semicircular frame (14) to completely scrape off the sludge inside and discharge it into the sewage tank (6); Step 5: During the rotation of the scraper (22), its surface will interact with the cleaning component, and the scraper (22) will be cleaned by the cleaning component to improve the cleaning effect of the scraper (22) when scraping the semicircular frame (14).

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