Industrial wastewater purification treatment equipment

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to industrial wastewater purification treatment equipment which comprises an air floatation tank, a dissolved air tank, a pressure pump and a scraper, two supports symmetrically distributed on the two sides of a separation area are installed on the air floatation tank, a chain transmission mechanism is installed on the supports, a scraper telescopic assembly is installed on the chain transmission mechanism, and the scraper telescopic assembly is connected with the dissolved air tank. The scraper telescopic assembly comprises a base and a mounting plate, a movable plate movably connected is mounted on the support, 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 air floatation tank is kept unchanged, and the depth of the scraper extending into the separation area can be controlled by controlling the distance between the mounting plate and the base; the distance between the mounting plate and the base can be adjusted by adjusting the height of the moving plate, so that the scum scraping depth of the scraping plate is adjusted, the situation that the extending length of the scraping plate is changed to affect operation of other equipment structures is avoided under the condition that the scraping depth of the scraping plate can be freely adjusted, and too large moving space does not need to be reserved for the scraping plate.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to industrial wastewater purification and treatment equipment. Background Art

[0002] The flotation tank introduces gas into the sewage, generating microbubbles in the sewage. The bubbles attach to the suspended matter in the sewage, causing the suspended matter to float to the water surface to form scum. The scum is then cleaned to other areas by scrapers and other cleaning equipment, completing the water purification process.

[0003] In actual work, there is a certain fluctuation in the sewage height. If the sewage height is too low, there is a problem that the scraper cannot effectively clean the scum. If the sewage height is too high, there is a problem that the scraper will clean the clean water that needs to be retained together with the scum to the scum storage area, resulting in a decrease in the amount of clean water recovered.

[0004] Although existing equipment can control the cleaning depth of the scraper, the depth adjustment steps are cumbersome and inconvenient to adjust during equipment operation. In addition, a larger moving space needs to be reserved for the scraper to avoid collision between the adjusted scraper and other equipment structures.

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

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: Disclosed is an industrial wastewater purification and treatment device, which includes a flotation tank, an air dissolving tank, a pressure pump, and a scraper. The air dissolving tank and the pressure pump are installed outside the flotation tank. The flotation tank includes a separation area and a scum area. Two brackets symmetrically distributed on both sides of the separation area are installed on the flotation tank. A chain transmission mechanism is installed on the bracket. A scraper telescopic assembly is installed on the chain transmission mechanism. The scraper telescopic assembly includes a base and a mounting plate. The base is installed on the chain transmission mechanism. A positioning rod is provided on the base. The mounting plate is connected to the positioning rod. Both ends of the scraper are respectively fixed to the two mounting plates. A spring is installed between the mounting plate and the base and surrounds the outside of the positioning rod. A movable movable plate is installed on the bracket. The lower end of the movable plate extends to the lower side of the chain transmission mechanism. When the base is located on the side close to the separation area, the movable plate can contact the mounting plate.

[0007] As a preferred solution, there are two positioning rods, and the two positioning rods are symmetrically distributed at the lower end of the base, and a fixing sleeve is installed at the bottom end of the positioning rod.

[0008] As a preferred solution, the chain transmission mechanism includes two sprockets mounted on the bracket and a transmission chain sleeved on the two sprockets. The upper end of the base is fixed on the transmission chain, and a tensioning assembly in contact with the transmission chain is installed on the bracket.

[0009] As a preferred solution, the tensioning assembly includes a movable plate mounted on the bracket, and a tensioning wheel in contact with the transmission chain is mounted on the movable plate.

[0010] As a preferred solution, a transmission shaft is connected between the front and rear corresponding sprockets on the two brackets, and a drive motor is connected to one of the transmission shafts.

[0011] As a preferred solution, a rotatably connected telescopic rod is installed on the inner side of 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 movable plate.

[0012] As an optimal solution, 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 and they are symmetrically distributed on the left and right ends of the horizontal plate. The positioning bolts are slidingly connected to the upper end of the movable plate, and the adjusting bolts are threadedly connected to the upper end of the movable plate.

[0013] As a preferred solution, a base located in the scum area is installed on the flotation tank, and one or more cleaning racks are slidably connected to the base, with the top of the cleaning rack facing the chain transmission mechanism.

[0014] As a preferred solution, a slide groove and a limit groove are provided on the base, the limit groove is located on the side of the slide groove close to the separation area, the bottom end of the cleaning rack is located in the slide groove, and the bottom end of the cleaning rack is provided with a limit plate extending into the limit groove, and there is a gap between the outer wall of the limit plate and the inner wall of the limit groove.

[0015] As a preferred solution, end covers are installed on the base and are respectively located at the two openings of the slide groove.

[0016] Compared with the existing technology, the advantages of the present invention are: 1. The minimum height of the base of the present invention on the flotation tank 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 movable plate, the distance between the mounting plate and the base can be adjusted, thereby adjusting the scum scraping depth of the scraper. When the scraping depth of the scraper can be freely adjusted, the change in the extension length of the scraper can be avoided to affect the operation of other equipment structures, and there is no need to reserve too much moving space for the scraper.

[0017] 2. The telescopic rod designed in the present invention will serve as a transition piece for the movable plate to adjust the position of the mounting plate, making the distance adjustment operation between the mounting plate and the base smoother.

[0018] 3. When the scraper of the present invention contacts the cleaning frame, the cleaning frame will swing upward with its bottom end as the fulcrum until the upper end of the limit plate abuts against the upper end of the inner wall of the limit groove. After the scraper is separated from the cleaning frame, 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 on the top of the cleaning frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the present invention.

[0020] Figure 2 It is a right schematic diagram of the present invention.

[0021] Figure 3 It is a schematic diagram of the scraper telescopic assembly, chain transmission mechanism and cleaning frame of the present invention.

[0022] Figure 4 It is a schematic diagram of the chain transmission mechanism of the present invention.

[0023] Figure 5 It is a rear view schematic diagram of the chain transmission mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the positional relationship between the scraper telescopic assembly and the movable plate of the present invention.

[0025] Figure 7 It is a schematic diagram of the base and the cleaning frame of the present invention.

[0026] Figure 8 It is a schematic diagram of the limiting groove and the limiting plate of the present invention.

[0027] The names of the numbers in the figure are: 1. dissolved air tank; 2. pressure pump; 3. scraper; 10. flotation tank; 11. separation area; 12. scum area; 13. bracket; 14. movable plate; 15. telescopic rod; 16. cross 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 transmission mechanism; 31. sprocket; 32. transmission chain; 33. movable plate; 34. tensioning pulley; 35. transmission shaft; 36. driving motor; 41. base; 42. cleaning frame; 43. slide; 44. limit groove; 45. limit plate; 46. end cover. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] An industrial wastewater purification and treatment equipment, such as Figures 1 to 8As shown, it includes an air flotation tank 10, an air dissolving tank 1, a pressure pump 2, and a scraper 3. The air dissolving tank 1 and the pressure pump 2 are installed outside the air flotation tank 10. The air flotation tank 10 includes a separation area 11 and a scum area 12. Two brackets 13 symmetrically distributed on both sides of the separation area 11 are installed on the air flotation tank 10. A chain transmission mechanism 30 is installed on the bracket 13. A scraper telescopic assembly 20 is installed on the chain transmission mechanism 30. The scraper telescopic assembly 20 includes a base 21 and a mounting plate 22. The base 21 is installed on the chain transmission mechanism. On the movable mechanism 30, a positioning rod 23 is provided on the base 21, 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, and a spring 24 is installed between the mounting plate 22 and the base 21 around the outside of the positioning rod 23. A movable plate 14 is installed on the bracket 13, and the lower end of the movable plate 14 extends to the lower side of the chain transmission mechanism 30. When the base 21 is located close to the separation area 11, the movable plate 14 can contact the mounting plate 22.

[0030] The lowest height of the base 21 on the flotation tank 10 remains unchanged. By controlling the distance between the mounting plate 22 and the base 21, the depth of the scraper 3 extending into the separation zone 11 can be controlled. In addition, since the lower end of the movable plate 14 is located below the chain transmission mechanism 30, when the base 21 moves with the chain transmission mechanism 30 to the side close to the separation zone 11, the base 21 will be located above the lower end of the movable plate 14, and the mounting plate 22 will be located below the lower end of the movable plate 14. Therefore, 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 scraping depth of the scraper 3. In addition to the depth, and because the lower end of the movable plate 14 is only located on the lower side of the chain transmission mechanism 30, when the scraper 3 is not required to perform scum scraping work, the mounting plate 22 will maintain its initial state, that is, the scraper 3 is at a position away from the separation area 11, and the extended length of the scraper 3 remains unchanged. When the scraper 3 is at a position close to the separation area 11, the extended length of the scraper 3 can be freely adjusted according to the scum scraping requirements. When the scraping depth of the scraper 3 can be freely adjusted, the change of the scraper extension length can be avoided to affect the operation of other equipment structures, and there is no need to reserve too much moving space for the scraper 3.

[0031] A delivery pipeline for sewage treatment is connected between the air dissolving tank 1 and the pressure pump 2 , and between the air dissolving tank 1 , the pressure pump 2 and the flotation tank 10 .

[0032] 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 , and a fixing sleeve 25 is installed at the bottom end of the positioning rod 23 .

[0033] The two positioning rods 23 can make the mounting plate 22 more stably mounted on the base 21, and the detachable fixing sleeve 25 facilitates the disassembly and assembly of the mounting plate 22. After removing the fixing sleeve 25, the scraper 3 can be removed for maintenance or replacement.

[0034] like Figures 3 to 5 As shown, the chain transmission mechanism 30 includes two sprockets 31 mounted on the bracket 13 and a transmission chain 32 mounted on the two sprockets 31. The upper end of the base 21 is fixed on the transmission chain 32. A tensioning assembly in contact with the transmission chain 32 is installed on the bracket 13. The tensioning assembly includes a movable plate 33 mounted on the bracket 13. A tensioning wheel 34 in contact with the transmission chain 32 is installed on the movable plate 33. A transmission shaft 35 is connected between the front and rear corresponding sprockets 31 on the two brackets 13, and a drive motor 36 is connected to one of the transmission shafts 35.

[0035] Through slots are provided on both the movable plate 33 and the bracket 13. The movable plate 33 is fixed to the bracket 13 by installing bolts between the two through slots. The position of the movable plate 33 on the bracket 13 can be adjusted within the length of the through slots.

[0036] With the cooperation of the sprocket 31, the transmission chain 32, the transmission shaft 35, and the 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 tensioning wheel 34 is used to keep the transmission chain 32 in a taut state.

[0037] like Figure 3 As shown, a rotatably connected telescopic rod 15 is installed inside 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 .

[0038] 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 of the moving plate 14, and 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, so that the distance adjustment operation between the mounting plate 22 and the base 21 is smoother.

[0039] like Figure 5 As shown, a horizontal plate 16 is provided on the outside of the bracket 13, and 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 bolt 17 is slidably connected to the upper end of the movable plate 14, and the adjusting bolt 18 is threadedly connected to the upper end of the movable plate 14. The adjusting bolt 18 is used to adjust the height of the movable plate 14 on the bracket 13, thereby adjusting the distance between the mounting plate 22 and the base 21.

[0040] like Figure 2As shown, a base 41 located in the slag area 12 is installed on the flotation tank 10 , 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 transmission mechanism 30 .

[0041] The cleaning rack 42 is used to remove scum on the scraper 3 to prevent the scum attached to the surface of the scraper 3 from affecting subsequent scum removal work.

[0042] like Figure 7 and Figure 8 As shown, a slide groove 43 and a limit groove 44 are provided on the base 41. The limit groove 44 is located on the left side of the slide groove 43 near the separation area 11. The bottom end of the cleaning rack 42 is located in the slide groove 43, and the bottom end of the cleaning rack 42 is provided with a limit plate 45 extending into the limit groove 44. There is a gap between the outer wall of the limit plate 45 and the inner wall of the limit groove 44.

[0043] When the scraper 3 contacts the cleaning frame 42, the scraper 3 will apply an upward force to the top of the cleaning frame 42, and the cleaning frame 42 will swing upward with its own bottom end as the fulcrum until the upper end of the limit plate 45 abuts against the upper end of the inner wall of the limit 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 on the top of the cleaning frame 42.

[0044] End covers 46 are mounted on the base 41 and are located at two openings of the chute 43 . The end covers 46 are snap-fitted to the base 41 to prevent the cleaning rack 42 from being separated from the chute 43 .

[0045] The above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the scope of protection of the present invention.

Claims

1. An industrial wastewater purification treatment device, comprising an air flotation tank (10), an air dissolving tank (1), a pressure pump (2), and a scraper (3), wherein the air dissolving tank (1) and the pressure 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 provided with two brackets (13) symmetrically distributed on both sides of the separation zone (11), the brackets (13) are provided with a chain transmission mechanism (30), the chain transmission mechanism (30) is provided with a scraper telescopic assembly (20), the scraper telescopic assembly (20) comprises a base (21) and a mounting plate (22), the base (21) is provided with a positioning rod (23), the mounting plate (22) is connected to the fixed position, and the fixed position is provided on the base (21). The scraper (3) is fixed on the positioning rod (23), and the two ends of the scraper (3) are respectively fixed on two mounting plates (22). A spring (24) surrounding the outer side of the positioning rod (23) is installed between the mounting plate (22) and the base (21). A movable 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 transmission mechanism (30). When the base (21) is located on the side close to the separation area (11), the movable plate (14) can contact the mounting plate (22).

2. The industrial wastewater purification 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 equipment according to claim 1, characterized in that: The chain transmission mechanism (30) comprises two sprockets (31) mounted on a bracket (13) and a transmission chain (32) sleeved on the two sprockets (31); the upper end of the base (21) is fixed on the transmission chain (32); and a tensioning assembly in contact with the transmission chain (32) is mounted on the bracket (13).

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

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

6. The industrial wastewater purification equipment according to claim 3, characterized in that: A rotatably connected telescopic rod (15) is installed inside the bracket (13). 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 movable plate (14).

7. The industrial wastewater purification equipment according to claim 1 or 6, characterized in that: A transverse plate (16) is provided on the outside of the bracket (13), and a positioning bolt (17) and an adjusting bolt (18) are installed on the transverse plate (16). There are two positioning bolts (17) and they are symmetrically distributed at the left and right ends of the transverse plate (16). The positioning bolt (17) is slidably connected to the upper end of the movable plate (14), and the adjusting bolt (18) is threadedly connected to the upper end of the movable plate (14).

8. The industrial wastewater purification equipment according to claim 1, characterized in that: The flotation tank (10) is provided with a base (41) located in the scum area (12). One or more cleaning racks (42) are slidably connected to the base (41), and the top end of the cleaning rack (42) faces the chain transmission mechanism (30).

9. The industrial wastewater purification equipment according to claim 8, characterized in that: The base (41) is provided with a slide groove (43) and a limiting groove (44), the limiting groove (44) is located on a side of the slide groove (43) close to the separation area (11), the bottom end of the cleaning frame (42) is located in the slide groove (43), and the bottom end of the cleaning frame (42) is provided with a limiting plate (45) extending into the limiting groove (44), and a gap is present between the outer wall of the limiting plate (45) and the inner wall of the limiting groove (44).

10. The industrial wastewater purification equipment according to claim 9, characterized in that: The base (41) is provided with end covers (46) respectively located at the two openings of the chute (43).

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