An industrial wastewater purification treatment device

Abstract

The present application belongs to the technical field of sewage treatment, and particularly relates to an industrial wastewater purification treatment equipment, which comprises a gas floatation tank, a dissolved air tank, a pressurizing pump and a scraper, two supports symmetrically distributed on both sides of a separation zone are installed on the gas floatation tank, a chain transmission mechanism is installed on the supports, a scraper telescopic assembly is installed on the chain transmission mechanism, the scraper telescopic assembly comprises a base and a mounting plate, a movable plate movably connected to the supports is installed, and the lower end of the movable plate extends to the lower side of the chain transmission mechanism. The lowest height of the base on the gas floatation tank is kept unchanged, the distance between the mounting plate and the base is controlled, the depth of the scraper extending into the separation zone is controlled, the spacing between the mounting plate and the base is adjusted by adjusting the height of the movable plate, the skimming depth of the scraper is adjusted, and the skimming depth of the scraper can be freely adjusted, the extension length of the scraper is prevented from affecting the operation of other equipment structures, and a large moving space for the scraper is not required.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and in particular relates to an industrial wastewater purification and treatment device. Background Technology

[0002] In an air flotation tank, gas is introduced into the wastewater, generating microbubbles. These microbubbles attach to suspended solids in the wastewater, causing them to float to the surface and form scum. The scum is then removed to other areas by cleaning equipment such as scrapers, thus achieving the water purification process.

[0003] In practice, the height of sewage fluctuates. If the sewage height is too low, the scraper may not be able to effectively remove the scum. If the sewage height is too high, the scraper may remove the clean water that needs to be retained along with the scum to the scum storage area, resulting in a reduction in the amount of clean water recovered.

[0004] While existing equipment can control the cleaning depth of the scraper, the depth adjustment process is cumbersome and inconvenient to adjust during equipment operation. Furthermore, it requires more space for the scraper to move to avoid collisions between the adjusted scraper and other equipment structures.

[0005] This invention designs an industrial wastewater purification and treatment device to solve the above problems. Summary of the Invention

[0006] To achieve the above objectives, the present invention employs the following technical solutions:

[0007] An industrial wastewater purification treatment device includes an air flotation tank, a dissolved air tank, a pressurizing pump, and a scraper. The dissolved air tank and the pressurizing pump are installed outside the air flotation tank. The air flotation tank includes a separation zone and a scum zone. Two supports symmetrically distributed on both sides of the separation zone are installed on the air flotation tank. A chain drive mechanism is installed on the supports, and a scraper telescopic assembly is installed on the chain drive mechanism. The scraper telescopic assembly includes a base and a mounting plate. The base is installed on the chain drive mechanism and a positioning rod is provided on the base. The mounting plate is connected to the positioning rod. Both ends of the scraper are fixed to the two mounting plates respectively. A spring is installed between the mounting plate and the base, surrounding the outside of the positioning rod. A movable plate is installed on the supports, and the lower end of the movable plate extends to the lower side of the chain drive mechanism. When the base is located near the separation zone, the movable plate can contact the mounting plate.

[0008] As a preferred embodiment, there are two positioning rods, which are symmetrically distributed at the lower end of the base, and a fixing sleeve is installed at the bottom of the positioning rod.

[0009] As a preferred embodiment, the chain drive mechanism includes two sprockets mounted on a bracket and a drive chain sleeved on the two sprockets. The upper end of the base is fixed to the drive chain, and a tensioning component that contacts the drive chain is installed on the bracket.

[0010] As a preferred embodiment, the tensioning assembly includes a movable plate mounted on a bracket, on which a tensioning wheel is mounted that contacts the drive chain.

[0011] As a preferred embodiment, a drive shaft is connected between the corresponding sprockets on the two supports, and a drive motor is connected to one of the drive shafts.

[0012] As a preferred embodiment, a telescopic rod with a rotatable connection is installed inside the bracket. The telescopic rod is located below the sprocket on the left side, and one end of the telescopic rod is rotatably connected to the lower end of the moving plate.

[0013] As a preferred embodiment, a horizontal plate is provided on the outside of the bracket, and positioning bolts and adjusting bolts are installed on the horizontal plate. There are two positioning bolts, which are symmetrically distributed on the left and right ends of the horizontal plate. The positioning bolts are slidably connected to the upper end of the moving plate, and the adjusting bolts are threadedly connected to the upper end of the moving plate.

[0014] As a preferred embodiment, the flotation tank is equipped with a base located in the scum zone, and one or more cleaning frames are slidably connected to the base, with the top of the cleaning frame facing the chain drive mechanism.

[0015] As a preferred embodiment, the base is provided with a sliding groove and a limiting groove. The limiting groove is located on the side of the sliding groove near the separation area. The bottom end of the cleaning frame is located in the sliding groove, and the bottom end of the cleaning frame is provided with a limiting plate extending into the limiting groove. There is a gap between the outer wall of the limiting plate and the inner wall of the limiting groove.

[0016] As a preferred option, the base is fitted with end caps located at the two openings of the slide.

[0017] Compared with existing technologies, the advantages of this invention are:

[0018] 1. The minimum height of the base on the flotation tank of the present invention remains unchanged. By controlling the distance between the mounting plate and the base, the depth of the scraper extending into the separation zone can be controlled. By adjusting the height of the moving plate, the distance between the mounting plate and the base can be adjusted, thereby adjusting the scum removal depth of the scraper. This allows for free adjustment of the scraper removal depth while avoiding the impact of scraper extension length changes on the operation of other equipment structures, and eliminates the need to reserve excessive moving space for the scraper.

[0019] 2. The telescopic rod designed in this invention will serve as a transition piece for adjusting the position of the mounting plate by moving the plate, making the adjustment of the distance between the mounting plate and the base more stable.

[0020] 3. When the scraper of the present invention comes into contact with the cleaning frame, the cleaning frame will swing upward with its bottom end as the fulcrum until the upper end of the limiting plate abuts against the upper end of the inner wall of the limiting groove. After the scraper and the cleaning frame separate, the cleaning frame will swing downward to reset. This action will cause the cleaning frame to vibrate to a certain extent, which can shake off the scum at the top of the cleaning frame. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the present invention.

[0022] Figure 2 This is a schematic diagram on the right side of the present invention.

[0023] Figure 3 This is a schematic diagram of the scraper telescopic assembly, chain drive mechanism, and cleaning frame of the present invention.

[0024] Figure 4 This is a schematic diagram of the chain drive mechanism of the present invention.

[0025] Figure 5 This is a rear view schematic diagram of the chain drive mechanism of the present invention.

[0026] Figure 6 This is a schematic diagram showing the positional relationship between the scraper telescopic assembly and the moving plate of the present invention.

[0027] Figure 7 This is a schematic diagram of the base and cleaning rack of the present invention.

[0028] Figure 8 This is a schematic diagram of the limiting groove and limiting plate of the present invention.

[0029] The following are the labels in the diagram: 1. Dissolved air tank; 2. Pressurization pump; 3. Scraper; 10. Flotation tank; 11. Separation zone; 12. Scum zone; 13. Support; 14. Moving plate; 15. Telescopic rod; 16. Horizontal plate; 17. Positioning bolt; 18. Adjusting bolt; 20. Scraper telescopic assembly; 21. Base; 22. Mounting plate; 23. Positioning rod; 24. Spring; 25. Fixing sleeve; 30. Chain drive mechanism; 31. Sprocket; 32. Drive chain; 33. Moving plate; 34. Tensioning wheel; 35. Drive shaft; 36. Drive motor; 41. Base; 42. Cleaning frame; 43. Slide groove; 44. Limiting groove; 45. Limiting plate; 46. End cap. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following embodiments and drawings are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0031] An industrial wastewater purification and treatment device, such as Figures 1 to 8As shown, the system includes an air flotation tank 10, a dissolved air tank 1, a pressurizing pump 2, and a scraper 3. The dissolved air tank 1 and the pressurizing pump 2 are installed outside the air flotation tank 10. The air flotation tank 10 includes a separation zone 11 and a scum zone 12. Two supports 13 are symmetrically distributed on both sides of the separation zone 11 on the air flotation tank 10. A chain drive mechanism 30 is installed on the supports 13, and a scraper telescopic assembly 20 is installed on the chain drive mechanism 30. The scraper telescopic assembly 20 includes a base 21 and a mounting plate 22. The base 21 is mounted on the chain drive mechanism 30. On the drive mechanism 30, a positioning rod 23 is provided on the base 21, and the mounting plate 22 is connected to the positioning rod 23. The two ends of the scraper 3 are respectively fixed on the two mounting plates 22. A spring 24 is installed between the mounting plate 22 and the base 21, which surrounds the outside of the positioning rod 23. A movable plate 14 is installed on the bracket 13. The lower end of the movable plate 14 extends to the lower side of the chain drive mechanism 30. When the base 21 is located near the separation zone 11, the movable plate 14 can contact the mounting plate 22.

[0032] The minimum height of the base 21 on the flotation tank 10 remains constant. By controlling the distance between the mounting plate 22 and the base 21, the depth to which the scraper 3 extends into the separation zone 11 can be controlled. Furthermore, since the lower end of the moving plate 14 is located below the chain drive mechanism 30, when the base 21 moves with the chain drive mechanism 30 to a position closer to the separation zone 11, the base 21 will be positioned above the lower end of the moving plate 14, while the mounting plate 22 will be positioned below the lower end of the moving plate 14. Therefore, by adjusting the height of the moving plate 14, the distance between the mounting plate 22 and the base 21 can be adjusted, thereby adjusting the scraping depth of the scraper 3. In addition to the depth, since the lower end of the moving plate 14 is only located below the chain drive mechanism 30, the mounting plate 22 will remain in its initial state when the scraper 3 is not required to perform scum removal. That is, when the scraper 3 is far away from the separation zone 11, the extension length of the scraper 3 remains unchanged. When the scraper 3 is close to the separation zone 11, the extension length of the scraper 3 can be freely adjusted according to the scum removal requirements. While achieving the ability to freely adjust the scraping depth of the scraper 3, the change in the extension length of the scraper is avoided from affecting the operation of other equipment structures, and there is no need to reserve too much moving space for the scraper 3.

[0033] There are conveying pipes for wastewater treatment connected between dissolved air tank 1 and pressurizing pump 2, and between dissolved air tank 1 and pressurizing pump 2 and flotation tank 10.

[0034] like Figure 6 As shown, there are two positioning rods 23, and the two positioning rods 23 are symmetrically distributed at the lower end of the base 21. A fixing sleeve 25 is installed at the bottom end of the positioning rod 23.

[0035] The two positioning rods 23 enable the mounting plate 22 to be installed more stably on the base 21, and the detachable fixing sleeve 25 facilitates the installation and removal of the mounting plate 22. After removing the fixing sleeve 25, the scraper 3 can be removed for maintenance or replacement.

[0036] like Figures 3 to 5 As shown, the chain drive mechanism 30 includes two sprockets 31 mounted on the bracket 13 and a drive chain 32 sleeved on the two sprockets 31. The upper end of the base 21 is fixed on the drive chain 32. A tensioning assembly that contacts the drive chain 32 is mounted on the bracket 13. The tensioning assembly includes a movable plate 33 mounted on the bracket 13. A tensioning wheel 34 that contacts the drive chain 32 is mounted on the movable plate 33. A drive shaft 35 is connected between the front and rear corresponding sprockets 31 on the two brackets 13. A drive motor 36 is connected to one of the drive shafts 35.

[0037] Both the movable plate 33 and the bracket 13 are provided with through grooves. By installing bolts between the two through grooves, the movable plate 33 is fixed on the bracket 13. The position of the movable plate 33 on the bracket 13 can be adjusted within the length of the through groove.

[0038] With the cooperation of sprocket 31, transmission chain 32, transmission shaft 35 and drive motor 36, the two transmission chains 32 move synchronously, so that the two scraper telescopic assemblies 20 always maintain corresponding positions in the front and rear directions. The tension wheel 34 is used to keep the transmission chain 32 in a taut state.

[0039] like Figure 3 As shown, a telescopic rod 15 is rotatably connected to the inner side of the bracket 13. The telescopic rod 15 is located below the sprocket 31 on the left side, and the right end of the telescopic rod 15 is rotatably connected to the lower end of the movable plate 14.

[0040] The transmission chain 32 runs counterclockwise, so the base 21 and the mounting plate 22 will be close to the moving plate 14 on the left side. The telescopic rod 15 will serve as a transition piece for the moving plate 14 to adjust the position of the mounting plate 22. The left end of the telescopic rod 15 is fixed on the bracket 13. The mounting plate 22 in the initial state will first contact the left end of the telescopic rod 15, then move along the telescopic rod 15, and finally contact the moving plate 14, making the distance adjustment operation between the mounting plate 22 and the base 21 more stable.

[0041] like Figure 5 As shown, a horizontal plate 16 is provided on the outside of the bracket 13. Positioning bolts 17 and adjusting bolts 18 are installed on the horizontal plate 16. There are two positioning bolts 17, which are symmetrically distributed on the left and right ends of the horizontal plate 16. The positioning bolts 17 are slidably connected to the upper end of the moving plate 14. The adjusting bolts 18 are threadedly connected to the upper end of the moving plate 14. The adjusting bolts 18 are used to adjust the height of the moving plate 14 on the bracket 13, thereby adjusting the distance between the mounting plate 22 and the base 21.

[0042] like Figure 2As shown, a base 41 located in the scum zone 12 is installed on the flotation tank 10. One or more cleaning frames 42 are slidably connected to the base 41, with the top of the cleaning frame 42 facing the chain drive mechanism 30.

[0043] The cleaning frame 42 is used to remove the scum on the scraper 3, so as to prevent the scum adhering to the surface of the scraper 3 from affecting the subsequent scum removal work.

[0044] like Figure 7 and Figure 8 As shown, the base 41 is provided with a sliding groove 43 and a limiting groove 44. The limiting groove 44 is located on the left side of the sliding groove 43 near the separation zone 11. The bottom end of the cleaning frame 42 is located in the sliding groove 43, and the bottom end of the cleaning frame 42 is provided with a limiting plate 45 extending into the limiting groove 44. There is a gap between the outer wall of the limiting plate 45 and the inner wall of the limiting groove 44.

[0045] When the scraper 3 comes into contact with the cleaning frame 42, the scraper 3 will apply an upward force to the top of the cleaning frame 42. The cleaning frame 42 will swing upward with its bottom end as the fulcrum until the upper end of the limiting plate 45 abuts against the upper end of the inner wall of the limiting groove 44. After the scraper 3 separates from the cleaning frame 42, the cleaning frame 42 will swing downward to reset. This action will cause the cleaning frame 42 to vibrate to a certain extent, which can shake off the scum at the top of the cleaning frame 42.

[0046] The base 41 is equipped with end caps 46 located at the two openings of the slide 43. The end caps 46 are snapped onto the base 41 to prevent the cleaning rack 42 from detaching from the slide 43.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An industrial wastewater purification and treatment device, comprising an air flotation tank (10), a dissolved air tank (1), a pressurizing pump (2), and a scraper (3), wherein the dissolved air tank (1) and the pressurizing pump (2) are installed outside the air flotation tank (10), and the air flotation tank (10) comprises a separation zone (11) and a scum zone (12), characterized in that: The flotation tank (10) is equipped with two supports (13) symmetrically distributed on both sides of the separation zone (11). A chain drive mechanism (30) is installed on the supports (13), and a scraper telescopic assembly (20) is installed on the chain drive mechanism (30). The scraper telescopic assembly (20) includes a base (21) and a mounting plate (22). The base (21) is installed on the chain drive mechanism (30), and a positioning rod (23) is provided on the base (21). The mounting plate (22) is connected to the positioning rod (23), and the two ends of the scraper (3) are respectively fixed to the two mounting plates (21, 22, and 23). 2) A spring (24) is installed between the mounting plate (22) and the base (21) and surrounds the outside of the positioning rod (23). A movable plate (14) is installed on the bracket (13) and is movably connected. The lower end of the movable plate (14) extends to the lower side of the chain drive mechanism (30). When the base (21) is located near the separation zone (11), the movable plate (14) can contact the mounting plate (22). By adjusting the height of the movable plate (14), the distance between the mounting plate (22) and the base (21) can be adjusted, thereby adjusting the scum removal depth of the scraper (3). A horizontal plate (16) is provided on the outside of the bracket (13). A positioning bolt (17) and an adjusting bolt (18) are installed on the horizontal plate (16). There are two positioning bolts (17) and they are symmetrically distributed on the left and right ends of the horizontal plate (16). The positioning bolts (17) are slidably connected to the upper end of the moving plate (14), and the adjusting bolts (18) are threadedly connected to the upper end of the moving plate (14). The chain drive mechanism (30) includes two sprockets (31) mounted on the bracket (13) and a drive chain (32) sleeved on the two sprockets (31). The upper end of the base (21) is fixed on the drive chain (32). The bracket (13) is equipped with a rotatably connected telescopic rod (15). The telescopic rod (15) is located below the sprocket (31) on the left side. One end of the telescopic rod (15) is rotatably connected to the lower end of the moving plate (14). The transmission chain (32) runs counterclockwise. The mounting plate (22) in the initial state will first contact the left end of the telescopic rod (15).

2. The industrial wastewater purification and treatment equipment according to claim 1, characterized in that: There are two positioning rods (23), and the two positioning rods (23) are symmetrically distributed at the lower end of the base (21). A fixing sleeve (25) is installed at the bottom end of the positioning rod (23).

3. The industrial wastewater purification and treatment equipment according to claim 1, characterized in that: The bracket (13) is equipped with a tensioning component that contacts the transmission chain (32).

4. The industrial wastewater purification and treatment equipment according to claim 3, characterized in that: The tensioning assembly includes a movable plate (33) mounted on a bracket (13), on which a tensioning wheel (34) is mounted that contacts the transmission chain (32).

5. The industrial wastewater purification and treatment equipment according to claim 3, characterized in that: A drive shaft (35) is connected between the corresponding sprockets (31) on the two supports (13), and a drive motor (36) is connected to one of the drive shafts (35).

6. The industrial wastewater purification and treatment equipment according to claim 1, characterized in that: The flotation tank (10) is equipped with a base (41) located in the scum zone (12), and one or more cleaning racks (42) are slidably connected to the base (41), with the top of the cleaning rack (42) facing the chain drive mechanism (30).

7. The industrial wastewater purification and treatment equipment according to claim 6, characterized in that: The base (41) is provided with a sliding groove (43) and a limiting groove (44). The limiting groove (44) is located on the side of the sliding groove (43) near the separation area (11). The bottom end of the cleaning frame (42) is located in the sliding groove (43), and the bottom end of the cleaning frame (42) is provided with a limiting plate (45) extending into the limiting groove (44). There is a gap between the outer wall of the limiting plate (45) and the inner wall of the limiting groove (44).

8. The industrial wastewater purification and treatment equipment according to claim 7, characterized in that: The base (41) is equipped with end caps (46) located at the two openings of the slide (43).

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