A biological purification device for sweater production wastewater

Abstract

The application relates to the technical field of wastewater treatment, in particular to a biological purification device for sweater production wastewater, which comprises an aeration tank, the inside of the aeration tank is provided with a liquid level sensor, suction pipes are arranged on the two sides of the aeration tank, fixed plates are fixedly connected in the suction pipes, double-shaft motors are fixedly connected to the outer side walls of the fixed plates, transmission rods and driving rods are respectively connected to the two side output ends of the double-shaft motors, and a filtering and humidifying mechanism is arranged. When the suction fan sucks air, the air is filtered and humidified first, the filtered and humidified air is introduced into the aeration tank, the aeration device is not blocked due to impurities in the air, and the air density is reduced by the appropriate humidification, so that the air is more easily contacted and mixed with water, the oxygen transfer efficiency is improved, the aerobic organisms in the aeration tank can more efficiently adsorb impurities, and the biological purification effect is improved.

Description

A biological purification device for wastewater from wool sweater production Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a biological purification device for wastewater from wool sweater production. Background Technology

[0002] Wool raw materials typically contain grease, dust, and impurities before processing, which need to be removed through a washing process. The washing process uses a large amount of water, resulting in wastewater containing pollutants such as lanolin, dirt, and detergent. In order to recycle the production wastewater, it usually needs to be purified.

[0003] In the biological treatment of wastewater from wool sweater production, the wastewater is typically first introduced into an aeration tank, and then air is injected into the water to ensure sufficient contact between the wastewater and air, increasing the dissolved oxygen content. In this aerobic environment, a large number of aerobic microorganisms grow in the aeration tank. These microorganisms decompose and metabolize organic pollutants in the wastewater, thereby achieving biological purification.

[0004] However, existing aeration tanks typically have simple internal structures and lack humidification mechanisms. Microorganisms require a suitable humidity environment to carry out metabolic activities in the aeration tank. If the air introduced is too dry, it will accelerate water evaporation in the aeration tank, leading to a decrease in the moisture content around the microorganisms, affecting their normal physiological metabolic processes, reducing microbial activity, and consequently decreasing their ability to decompose and remove organic pollutants from wastewater. Furthermore, existing aeration devices, when aerating in the aeration tank, often use detergents, softeners, and other additives containing large amounts of surfactants. Surfactants can significantly reduce the surface tension of water, making it easier for air to form in the water. Bubbles form on the surface of wastewater, and a stable film composed of surfactant molecules forms on the bubble surface, preventing the bubbles from bursting. When a large number of bubbles accumulate on the surface of wastewater, they form foam. The foam contains suspended particles, organic matter, and nutrients such as microbial metabolites from the wastewater. Filamentous bacteria can use these nutrients to grow. When filamentous bacteria multiply in large quantities, the structure of the sludge becomes loose, its volume expands, and its settling performance drops sharply, seriously affecting the normal operation of the wastewater treatment system. In order to prevent the large-scale proliferation of filamentous bacteria, the foam on the surface of the wastewater is usually scraped off and the wastewater is disinfected to prevent the growth of filamentous bacteria. However, this cleaning step is usually carried out manually, which is time-consuming and labor-intensive. Summary of the Invention

[0005] The purpose of this invention is to provide a biological purification device for wastewater from wool sweater production, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a biological purification device for wool sweater production wastewater, comprising an aeration tank, a liquid level sensor installed inside the aeration tank, suction pipes installed on both sides of the aeration tank, a fixed plate fixedly connected inside the suction pipes, a dual-axis motor fixedly connected to the outer wall of the fixed plate, a transmission rod and a drive rod respectively connected to the output ends of the dual-axis motors, a filtration and humidification mechanism installed on the transmission rod, the filtration and humidification mechanism comprising grooves formed on both sides of the suction pipes, a filter plate slidably connected inside the grooves on both sides, a vibration spring installed inside the grooves, the other end of the vibration spring contacting the outer wall of the filter plate, an inner plate installed inside the filter plate, a top rod fixedly connected to the outer wall of the inner plate, a universal roller installed at the bottom of the top rod, a suction fan installed at the end of the transmission rod, an outward pusher fixedly connected to the outer wall of the suction fan, the outward pusher contacting the universal roller at the bottom of the top rod, and a turntable installed on the transmission rod.

[0007] Preferably, the turntable has multiple spraying components internally connected, and each spraying component has a sliding tube slidably connected inside. The sliding tube is open on one side inside the spraying component, and multiple through holes are formed on the outer wall of the sliding tube. A return spring is sleeved on the outer wall of the sliding tube. A covering ring is rotatably sleeved at the end of the turntable, and multiple flow holes are formed at the end of the turntable. Mounting rods are fixedly connected to both sides of the covering ring, and the other end of the mounting rods is fixedly connected to the outer wall of the dual-axis motor. A water supply pipe is internally connected to the covering ring, and a water tank is fixedly connected to the outer wall of the suction pipe. The other end of the water supply pipe is connected to the interior of the water tank.

[0008] Preferably, threaded rods are rotatably connected to both sides of the aeration tank. The threaded rods on both sides have the same pitch and opposite thread directions. Belts are sleeved on the ends of the threaded rods on both sides. The ends of the two belts away from the threaded rods are respectively sleeved on the outer walls of the corresponding driving rods. A foam removal mechanism is provided inside the aeration tank.

[0009] Preferably, the foam removal mechanism includes inner tracks on both sides inside the aeration tank, with two scrapers slidably connected inside the inner tracks. The upper ends of the two scrapers are threaded onto the outer wall of the corresponding threaded rods, and protrusions are fixedly connected to both sides of the scrapers.

[0010] Preferably, storage tanks are fixedly connected to both sides of the aeration tank. Multiple outflow pipes are connected inside the storage tanks, and flow boxes are connected to the multiple outflow pipes. A sliding plate is slidably connected inside the flow box. An external hole is opened on the sliding plate. A return spring is provided between the sliding plate and the flow box. A push plate is fixedly connected to the outer wall of the sliding plate. Multiple inner rods are provided inside the aeration tank. A torsion spring shaft is provided on the multiple inner rods. A side rotation rod and a contact plate are provided on the outer wall of the torsion spring shaft.

[0011] Preferably, each of the two suction pipes is provided with an air vent, and an aeration pipe is provided between the two air vents. A blocking element is provided in the middle of the aeration pipe, and an aeration mechanism is provided inside the aeration pipe.

[0012] Preferably, the aeration mechanism includes multiple branch pipes connected inside the aeration pipe. Each branch pipe has an adjusting component at its bottom. Both sides of the adjusting component are slidably connected to a shifting plate. A flipping support arm is rotatably connected to each of the shifting plates. A pressure plate is slidably fitted onto each of the branch pipes. The end of the flipping support arm away from the shifting plate is rotatably connected to the bottom of the pressure plate. A pressing spring is fitted onto the outer wall of each branch pipe. Rotating rods are rotatably connected through both sides of the aeration pipe. A rotating plate is located on the side of the rotating rod inside the aeration pipe. The rotating rod slides through the pressure plate, and a magnetic ring is provided on the pressure plate.

[0013] Preferably, side rails are provided on both sides of the rotating rod, and a pressing magnet is slidably connected inside the side rail. A tension spring is fixedly connected to the outer wall of the pressing magnet, and the end of the tension spring away from the pressing magnet is fixedly connected to the inner wall of the side rail. The magnetic poles of the pressing magnet are the same as the magnetic poles of the magnetic ring.

[0014] Preferably, a gear is fixedly connected to the end of the rotating rod away from the rotating plate, and a connecting plate is fixedly connected to the outer wall of the adjusting member. The two connecting plates are rotatably connected to a stirring shaft, and a toothed disc is provided at the end of the stirring shaft. The gear and the toothed disc are meshed.

[0015] Preferably, a sludge storage box is provided on both sides of the aeration tank, and a suction trough is provided inside the sludge storage box. The suction trough extends into the interior of the aeration tank, and a suction pump is provided inside the suction trough.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The filtration and humidification mechanism is designed so that when the suction fan draws in air, it first filters and humidifies the air. When the filtered and humidified air is introduced into the aeration tank, it will not cause the entire aeration device to be blocked due to impurities in the air. In addition, proper humidification of the air can reduce the density of the air, making it easier for the air to come into contact with and mix with the water, thereby improving the oxygen transfer efficiency. This allows the aerobic organisms in the aeration tank to more efficiently adsorb impurities and improve the biological purification effect.

[0018] Through the adjustment mechanism, the entire branch pipe can automatically adjust the size of the air outlet according to the aeration pressure and flow rate. This ensures the aeration effect while reducing the possibility of blockage. When the aeration system pressure is low, the air outlet diameter of the branch pipe automatically shrinks to prevent impurities from entering. When the pressure increases, the air outlet diameter of the branch pipe increases to ensure sufficient air flow. In addition, while the adjustment mechanism is aerating, the stirring shaft also stirs the sludge at the bottom of the aeration tank. Stirring keeps the activated sludge in suspension, preventing sludge from settling and accumulating in the aeration tank, thus improving the aeration effect.

[0019] With the foam removal mechanism in place, when a lot of foam appears on the surface of the wastewater, two scrapers will move to the sides to scrape off the foam. As the foam scrapers return to their original positions, they will spray bactericide into the aeration tank to inhibit the growth of filamentous bacteria. Compared with the traditional manual scraping and manual spraying of chemicals, the automatic foam cleaning and sterilization method is more efficient and convenient. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the internal structure of the suction tube of the present invention;

[0022] Figure 3 is a partial structural diagram of the suction tube of the present invention;

[0023] Figure 4 is a partial structural diagram of the suction tube of the present invention (II).

[0024] Figure 5 is a schematic diagram of the turntable structure of the present invention;

[0025] Figure 6 is a partial structural schematic diagram of the present invention;

[0026] Figure 7 is a schematic diagram of the internal structure of the aeration tank of the present invention.

[0027] Figure 8 is a schematic diagram of the internal structure of the aeration tank of the present invention (II).

[0028] Figure 9 is an enlarged view of A in Figure 8;

[0029] Figure 10 is a schematic diagram of the turntable structure of the present invention;

[0030] Figure 11 is an enlarged view of B in Figure 10;

[0031] Figure 12 is a schematic diagram of a partial structure of the rotating rod of the present invention;

[0032] Figure 13 is a schematic diagram of the bottom structure of the branch pipe of the present invention.

[0033] The attached diagram lists the components represented by each number as follows: 1. Aeration tank; 2. Suction pipe; 3. Filter plate; 4. Inner plate; 5. Slide groove; 6. Vibration spring; 7. Fixing plate; 8. Suction fan; 9. Pushing component; 10. Top rod; 11. Dual-shaft motor; 12. Drive rod; 13. Transmission rod; 14. Turntable; 15. Water tank; 16. Water supply pipe; 17. Covering ring; 18. Flow hole; 19. Spraying component; 20. Slide pipe; 21. Return spring; 22. Through hole; 23. Belt; 24. Threaded rod; 25. Suction groove; 26. Scraper; 27. Storage tank; 28. Storage... 29. Sewage box; 30. Inner track; 31. Outflow pipe; 32. Protrusion; 33. Inner rod; 34. Torsion spring shaft; 35. Side rotating rod; 36. Contact plate; 37. Push plate; 38. Flow box; 39. Slide plate; 40. Outer hole; 41. Return spring; 42. Aeration pipe; 43. Rotating plate; 44. Branch pipe; 45. Pressure plate; 46. Gear; 47. Gear disc; 48. Connecting plate; 49. Stirring shaft; 50. Adjusting component; 51. Moving plate; 52. Tilting support arm; 53. Magnetic ring; 54. Side track; 55. Pressing magnet; 56. Tension spring; 57. Vent. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1-13. A biological purification device for wool sweater production wastewater includes an aeration tank 1. A liquid level sensor is installed inside the aeration tank 1. Suction pipes 2 are installed on both sides of the aeration tank 1. A fixing plate 7 is fixedly connected inside the suction pipe 2. A dual-axis motor 11 is fixedly connected to the outer wall of the fixing plate 7. A transmission rod 13 and a drive rod 12 are respectively connected to the output ends of the dual-axis motor 11 on both sides. A filtration and humidification mechanism is installed on the transmission rod 13. The filtration and humidification mechanism includes [missing information - likely referring to a specific type of device] located on both sides of the suction pipe 2. The slide 5 has a filter plate 3 slidably connected inside both sides of the slide 5. The slide 5 is equipped with a vibration spring 6, and the other end of the vibration spring 6 contacts the outer wall of the filter plate 3. The filter plate 3 is equipped with an inner plate 4. A top rod 10 is fixedly connected to the outer wall of the inner plate 4. A universal roller is provided at the bottom of the top rod 10. A suction fan 8 is provided at the end of the transmission rod 13. An outward pusher 9 is fixedly connected to the outer wall of the suction fan 8. The outward pusher 9 contacts the universal roller at the bottom of the top rod 10. A turntable 14 is provided on the transmission rod 13.

[0036] The turntable 14 has multiple spraying components 19 internally connected, and each spraying component 19 has a sliding tube 20 internally connected. The sliding tube 20 is open on one side inside the spraying component 19. Multiple through holes 22 are opened on the outer wall of the sliding tube 20. A return spring 21 is sleeved on the outer wall of the sliding tube 20. A covering ring 17 is rotatably sleeved at the end of the turntable 14. Multiple flow holes 18 are opened at the end of the turntable 14. Mounting rods are fixedly connected to both sides of the covering ring 17. The other end of the mounting rods is fixedly connected to the outer wall of the dual-axis motor 11. A water supply pipe 16 is internally connected to the covering ring 17. A water tank 15 is fixedly connected to the outer wall of the suction pipe 2. The other end of the water supply pipe 16 is connected to the inside of the water tank 15.

[0037] Both sides of the aeration tank 1 are rotatably connected with threaded rods 24. The thread pitch of the threaded rods 24 on both sides is the same and the thread direction is opposite. The ends of the threaded rods 24 on both sides are fitted with belts 23. The ends of the two belts 23 away from the threaded rods 24 are respectively fitted onto the outer walls of the corresponding driving rods 12. The aeration tank 1 is equipped with a foam removal mechanism.

[0038] The foam removal mechanism includes an inner track 29 located on both sides inside the aeration tank 1. Two scrapers 26 are slidably connected inside the inner track 29. The upper ends of the two scrapers 26 are threaded onto the outer wall of the corresponding threaded rod 24. Protrusions 31 are fixedly connected to both sides of the scrapers 26.

[0039] In this embodiment, during use, the wastewater to be treated can be introduced into the aeration tank 1. When the wastewater overflows to the inner track 29, the liquid level sensor in the aeration tank 1 will sound an alarm, reminding the user to stop injecting wastewater into the aeration tank 1. When the wastewater level reaches the bottom of the inner track 29, the operator can turn on the dual-shaft motors 11 on both sides, causing them to drive the suction fan 8 to rotate via the transmission rod 13. When the suction fan 8 rotates, it will draw external air into the suction pipe 2, and then deliver it into the aeration pipe 41 through the air vent 57. While the suction fan 8 is rotating to draw external air, the filter plate 3 will... The drawn-in air is filtered to prevent impurities from clogging the aeration mechanism, such as the aeration pipe 41. When the suction fan 8 rotates, it drives the pusher 9 to rotate synchronously. Since one side of the pusher 9 is lower and the other side is higher, when the pusher 9 rotates synchronously with the suction fan 8, it will intermittently push the push rod 10. Under the combined action of the elastic force of the vibration spring 6 and the intermittent lifting of the pusher 9, the filter plate 3 will vibrate back and forth. When the filter plate 3 vibrates back and forth, it can vibrate and dislodge the impurities left on the surface of the filter plate 3, preventing the filter plate 3 from filtering too many impurities and affecting the passivity of the filter plate 3.

[0040] Example 2: Please refer to Figures 1-13. Storage tanks 27 are fixedly connected to both sides of the aeration tank 1. Multiple outflow pipes 30 are connected inside the storage tanks 27. Flow boxes 37 are connected to the multiple outflow pipes 30. Slide plates 38 are slidably connected inside the flow boxes 37. The slide plates 38 have external holes 39. A return spring 40 is provided between the slide plates 38 and the flow boxes 37. A push plate 36 is fixedly connected to the outer wall of the slide plates 38. Multiple inner rods 32 are provided inside the aeration tank 1. Torsion spring shafts 33 are provided on the multiple inner rods 32. Side rotating rods 34 and contact plates 35 are provided on the outer wall of the torsion spring shafts 33.

[0041] Both suction pipes 2 are provided with air vents 57 inside, and an aeration pipe 41 is provided between the two air vents 57. A blocking element is provided in the middle part of the aeration pipe 41, and an aeration mechanism is provided inside the aeration pipe 41.

[0042] The aeration mechanism includes multiple branch pipes 44 connected inside the aeration pipe 41. The bottom of each branch pipe 44 is connected to an adjusting element 50. Both sides of the adjusting element 50 are slidably connected to a shift plate 51. Both shift plates 51 are rotatably connected to a flipping support arm 52. A pressure plate 45 is slidably sleeved on the multiple branch pipes 44. The end of the flipping support arm 52 away from the shift plate 51 is rotatably connected to the bottom of the pressure plate 45. A pressing spring is sleeved on the outer wall of the branch pipe 44. Rotating rods 43 are rotatably connected through both sides of the aeration pipe 41. A rotating plate 42 is provided on one side of the rotating rod 43 inside the aeration pipe 41. The rotating rod 43 slides through the pressure plate 45. A magnetic ring 53 is provided on the pressure plate 45.

[0043] Side rails 54 are provided on both sides of the rotating rod 43. A pressing magnet 55 is slidably connected inside the side rail 54. A tension spring 56 is fixedly connected to the outer wall of the pressing magnet 55. The end of the tension spring 56 away from the pressing magnet 55 is fixedly connected to the inner wall of the side rail 54. The magnetic poles of the pressing magnet 55 are the same as the magnetic poles of the magnetic ring 53.

[0044] A gear 46 is fixedly connected to the end of the rotating rod 43 away from the rotating plate 42. A connecting plate 48 is fixedly connected to the outer wall of the adjusting component 50. The two connecting plates 48 are rotatably connected to the stirring shaft 49. A toothed disc 47 is provided at the end of the stirring shaft 49. The gear 46 and the toothed disc 47 are meshed.

[0045] Both sides of the aeration tank 1 are provided with sludge storage boxes 28. The inside of the sludge storage boxes 28 is connected to a suction trough 25, which extends into the interior of the aeration tank 1. A suction pump is installed inside the suction trough 25.

[0046] In this embodiment, when the transmission rod 13 drives the suction fan 8 to draw in air, it also drives the turntable 14 to rotate. When the turntable 14 rotates, under the action of centrifugal force, the slide tube 20 overcomes the elastic force of the return spring 21 and moves to the outside of the spraying component 19, allowing the through hole 22, which was originally located inside the spraying component 19, to be exposed outside the spraying component 19. When the through hole 22 is exposed outside the spraying component 19, the water stored inside the turntable 14 will first enter the interior of the slide tube 20, and then be sprayed out of the spraying component 19 through the exposed through hole 22, humidifying the air drawn in by the suction fan 8. Since there are two through holes 22 on the slide tube 20, when the dual-axis motor 11 starts at high power... When the suction fan 8 is driven to rotate rapidly by the transmission rod 13, the turntable 14, which rotates rapidly with the transmission rod 13, will throw the slide tube 20 a large distance outward under the action of a large centrifugal force, so that both through holes 22 will leak out of the spraying component 19. When both through holes 22 leak out of the spraying component 19, the water stored in the turntable 14 will be thrown outward through the two through holes 22, and the amount of water sprayed will be significantly increased compared to before. This satisfies the humidification requirements of the suction fan 8 to draw in a large amount of air. Appropriate humidification of the air can reduce the density of the air, making it easier for the air to come into contact with and mix with water, thereby improving the oxygen transfer efficiency and allowing the aerobic organisms in the aeration tank 1 to adsorb impurities more efficiently, thus improving the biological purification effect.

[0047] When the air drawn in by the suction fan 8 enters the aeration pipe 41, it first impacts the rotating plate 42, causing the rotating plate 42 to drive the rotating rod 43 to rotate. When the rotating rod 43 rotates, it drives the gear 46 to rotate synchronously. Since the gear disc 47 and the gear 46 are meshed, when the gear 46 rotates, it drives the stirring shaft 49 to rotate synchronously through the gear disc 47. When the stirring shaft 49 rotates, it stirs the sludge at the bottom of the aeration tank 1. Stirring keeps the activated sludge in suspension, preventing the sludge from settling and accumulating in the aeration tank. When the dual-shaft motor 11 starts at high power, it drives the suction fan 8 to rotate rapidly and efficiently to introduce air into the aeration pipe 41 through the transmission rod 13. At this time, the air entering the aeration pipe 41 at high speed blows the rotating plate 42 to rotate rapidly. When the rotating plate 42 rotates rapidly, it drives the rotating rod 43 to rotate rapidly synchronously. At this time, under the action of a large centrifugal force, the pressing magnet 55 will overcome the tension of the tension spring 56 and move to the outside of the side rail 54. Located directly above the magnetic ring 53, when the pressed magnet 55 is positioned directly above the magnetic ring 53, the repulsive magnetic force pushes the pressure plate 45 downward. As the pressure plate 45 moves downward, it presses down to make the two flip support arms 52 flip to the sides. After the two flip support arms 52 flip to the sides, the two moving plates 51 move to the outside of the adjusting member 50, reducing the obstruction area of ​​the branch pipe 44. At this time, the air discharge of the branch pipe 44 will increase significantly compared to before. By automatically adjusting the size of the vent hole of the branch pipe 44 according to the aeration pressure and flow rate, the aeration effect is ensured while reducing the possibility of blockage. When the pressure of the aeration system is low, the vent hole of the branch pipe 44 automatically shrinks to prevent impurities from entering. When the pressure increases, the vent hole of the branch pipe 44 increases to ensure sufficient air flow. When air is introduced into the sewage in the aeration tank 1 through the branch pipe 44, the aerobic microorganisms in the aeration tank 1 will absorb it, thereby more efficiently purifying the impurities in the wastewater through biological purification.

[0048] During the aeration of wastewater into aeration tank 1 via branch pipe 44, if a significant amount of foam is observed on the surface of aeration tank 1, the operator can drive the drive rod 12 to rotate via the dual-shaft motor 11. When the drive rod 12 rotates, it drives the threaded rod 24 via belt 23. When both threaded rods 24 rotate synchronously, the two scrapers 26 move to the sides, scraping away the foam on the wastewater surface and pushing it to both sides of aeration tank 1. Once the foam has been scraped away and pushed to both sides of aeration tank 1, it can be sucked into the sludge storage box 28 via suction trough 25, thus completing the foam removal process. After the foam is removed, the dual-shaft motor 11 can be restarted to rotate the drive rod 12. Following the principle described above, as the threaded rod 24 continues to rotate, the scrapers 26 on both sides of the aeration tank 1 will close towards the center. As the scrapers 26 drive the protrusions 31 to close towards the center of the aeration tank 1, they will contact and push the side-rotating rod 34, causing it and the torsion spring shaft 33 to rotate towards the outflow pipe 30. When the contact plate 35 rotates towards the outflow pipe 30 along with the side-rotating rod 34, the contact plate 35 will push the sliding plate 38 away from the side-rotating rod 34 along the contact slope of the push plate 36. When plate 38 moves away from side rotating rod 34, the outer hole 39 will enter the flow box 37. After the outer hole 39 enters the flow box 37, the bactericide stored in storage tank 27 will drip into aeration tank 1 through the outer outlet pipe 30 and then through the outer hole 39 to sterilize the wastewater in aeration tank 1 and prevent the growth of filamentous bacteria. When the protrusion 31 moves with scraper 26, pushing side rotating rod 34 to rotate to its maximum angle closer to the outer outlet pipe 30, side rotating rod 34 will disengage from protrusion 31. At this time, under the action of the self-restoring elastic force of torsion spring shaft 33, side rotating rod 34 will return to its original position. When the scraper plate 26 is no longer in contact with the pusher plate 36, the unopened part of the slide plate 38 will block the outflow pipe 30 again, and no more disinfectant will drip into the aeration tank 1. Since the aeration tank 1 is equipped with multiple outflow pipes 30 and side rotating rods 34 and other mechanisms on the side, according to the above principle, when the scraper plate 26 returns to its original position from both sides, it will push multiple side rotating rods 34 in sequence, so that multiple outflow pipes 30 will drip disinfectant into the aeration tank 1 in sequence. The multiple outflow pipes 30 are distributed on both sides of the aeration tank 1. The sequential dripping of disinfectant by multiple outflow pipes 30 can make the disinfectant evenly mixed in the aeration tank 1, and there will be no accumulation of disinfectant.

[0049] It should be noted that when the protrusion 31 moves from the middle to both sides with the scraper 26, the protrusion 31 will push the side rotating rod 34, causing the contact plate 35 to flip away from the outflow pipe 30. At this time, the contact plate 35 will not contact the push plate 36, and therefore will not push the slide plate 38 to move. Therefore, when the scraper 26 moves to both sides to scrape off the foam, the outflow pipe 30 will not drip disinfectant into the aeration tank 1, because if disinfectant is dripped in at this time, the disinfectant is likely to be absorbed by the unscraped foam, affecting the disinfection effect.

[0050] It should be noted that when the turntable 14 rotates, it will drive multiple flow holes 18 to rotate synchronously. When the flow holes 18 rotate to coincide with the opening of the water supply pipe 16, the water stored in the water tank 15 will enter the turntable 14 through the water supply pipe 16 and then through the flow holes 18. At the same time, the diameter of the through hole 22 is small, and the liquid droplets sprayed from the through hole 22 are also small, so there will be no phenomenon of excessive water spraying and excessive air humidification.

[0051] It should be noted that when the suction fan 8 rotates at normal speed and introduces air into the aeration pipe 41, the amount of air introduced is relatively small and will not cause the rotating rod 43 to rotate rapidly. At this time, the centrifugal force generated by the rotation of the rotating rod 43 is insufficient to throw the pressing magnet 55 to the outside of the side rail 54.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biological purification device for wastewater from wool sweater production, comprising an aeration tank (1), wherein a liquid level sensor is installed inside the aeration tank (1), characterized in that, Suction pipes (2) are provided on both sides of the aeration tank (1). A fixed plate (7) is fixedly connected inside the suction pipe (2). A dual-axis motor (11) is fixedly connected to the outer wall of the fixed plate (7). A transmission rod (13) and a drive rod (12) are respectively connected to the output ends of the dual-axis motor (11). A filtration and humidification mechanism is provided on the transmission rod (13). The filtration and humidification mechanism includes sliding grooves (5) opened on both sides of the suction pipe (2). The sliding grooves (5) on both sides slide together. A filter plate (3) is dynamically connected. A vibration spring (6) is installed inside the slide groove (5). The other end of the vibration spring (6) contacts the outer wall of the filter plate (3). An inner plate (4) is installed inside the filter plate (3). A top rod (10) is fixedly connected to the outer wall of the inner plate (4). A universal roller is installed at the bottom of the top rod (10). A suction fan (8) is installed at the end of the transmission rod (13). An external pusher (9) is fixedly connected to the outer wall of the suction fan (8). 9) Contacts the universal roller at the bottom of the top rod (10), and a turntable (14) is provided on the transmission rod (13); multiple spraying parts (19) are connected inside the turntable (14), and a sliding tube (20) is slidably connected inside each of the multiple spraying parts (19). The sliding tube (20) is open on one side inside the spraying part (19), and multiple through holes (22) are opened on the outer wall of the sliding tube (20). A return spring (21) is sleeved on the outer wall of the sliding tube (20). The end of the turntable (14) is rotatably fitted with a covering ring (17). The end of the turntable (14) is provided with multiple flow holes (18). Both sides of the covering ring (17) are fixedly connected with mounting rods. The other end of the mounting rods is fixedly connected to the outer wall of the dual-axis motor (11). The inside of the covering ring (17) is connected to a water supply pipe (16). The outer wall of the suction pipe (2) is fixedly connected to a water tank (15). The other end of the water supply pipe (16) is connected to the inside of the water tank (15).

2. The biological purification device for wool sweater production wastewater according to claim 1, characterized in that: Both sides of the aeration tank (1) are rotatably connected with threaded rods (24). The thread pitch of the threaded rods (24) on both sides is the same, and the thread direction is opposite. The ends of the threaded rods (24) on both sides are fitted with belts (23). The ends of the two belts (23) away from the threaded rods (24) are respectively fitted on the outer side wall of the corresponding driving rod (12). The aeration tank (1) is equipped with a foam removal mechanism.

3. The biological purification device for wool sweater production wastewater according to claim 2, characterized in that: The foam removal mechanism includes an inner track (29) on both sides inside the aeration tank (1). Two scrapers (26) are slidably connected inside the inner track (29). The upper ends of the two scrapers (26) are threaded onto the outer wall of the corresponding threaded rod (24). Both sides of the scrapers (26) are fixedly connected with protrusions (31).

4. The biological purification device for wool sweater production wastewater according to claim 1, characterized in that: Storage tanks (27) are fixedly connected to both sides of the aeration tank (1). Multiple outflow pipes (30) are connected inside the storage tank (27). Flow boxes (37) are connected to the multiple outflow pipes (30). Slide plates (38) are slidably connected inside the flow boxes (37). An external hole (39) is opened on the slide plates (38). A return spring (40) is provided between the slide plates (38) and the flow boxes (37). A push plate (36) is fixedly connected to the outer wall of the slide plates (38). Multiple inner rods (32) are provided inside the aeration tank (1). Torsion spring shafts (33) are provided on the multiple inner rods (32). A side rotating rod (34) and a contact plate (35) are provided on the outer wall of the torsion spring shafts (33).

5. The biological purification device for wool sweater production wastewater according to claim 1, characterized in that: Both suction pipes (2) are provided with air vents (57) inside, and an aeration pipe (41) is provided between the two air vents (57). A blocking element is provided in the middle part of the aeration pipe (41), and an aeration mechanism is provided inside the aeration pipe (41).

6. The biological purification device for wool sweater production wastewater according to claim 5, characterized in that: The aeration mechanism includes multiple branch pipes (44) connected inside the aeration pipe (41). The bottom of each of the multiple branch pipes (44) is connected to an adjusting member (50). Both sides of the adjusting member (50) are slidably connected to a moving plate (51). Both sides of the moving plate (51) are rotatably connected to a flipping support arm (52). A pressure plate (45) is slidably sleeved on the multiple branch pipes (44). The end of the flipping support arm (52) away from the moving plate (51) is rotatably connected to the bottom of the pressure plate (45). A pressing spring is sleeved on the outer wall of the branch pipe (44). Rotating rods (43) are rotatably connected through both sides of the aeration pipe (41). A rotating plate (42) is provided on one side of the rotating rod (43) inside the aeration pipe (41). The rotating rod (43) slides through the pressure plate (45). A magnetic ring (53) is provided on the pressure plate (45).

7. A biological purification device for wool sweater production wastewater according to claim 6, characterized in that: Both sides of the rotating rod (43) are provided with side rails (54). A pressing magnet (55) is slidably connected inside the side rail (54). A tension spring (56) is fixedly connected to the outer wall of the pressing magnet (55). The end of the tension spring (56) away from the pressing magnet (55) is fixedly connected to the inner wall of the side rail (54). The magnetic poles of the pressing magnet (55) are the same as the magnetic poles of the magnetic ring (53).

8. A biological purification device for wool sweater production wastewater according to claim 6, characterized in that: A gear (46) is fixedly connected to the end of the rotating rod (43) away from the rotating plate (42). A connecting plate (48) is fixedly connected to the outer side wall of the adjusting member (50). The two connecting plates (48) are rotatably connected to a stirring shaft (49). A toothed disc (47) is provided at the end of the stirring shaft (49). The gear (46) and the toothed disc (47) are meshed.

9. A biological purification device for wool sweater production wastewater according to claim 1, characterized in that: Both sides of the aeration tank (1) are provided with sludge storage boxes (28), and the inside of the sludge storage box (28) is connected to a suction trough (25). The suction trough (25) extends into the interior of the aeration tank (1), and a suction pump is provided inside the suction trough (25).

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