A wastewater purification and biogas deep desulfurization integrated device

Abstract

The application discloses a kind of wastewater purification and biogas deep desulfurization integration device, including processing box, the inside of processing box is equipped with first groove, the inside of processing box and the below of first groove is equipped with third groove, the inside of processing box and the side of third groove is equipped with second groove, the inside of third groove is rotatably connected with first stirring rod, the inside of first groove is rotatably connected with rotating rod, the beneficial effects reached by the application are as follows: the stirring blade is rotated in the inside of third groove by the connecting plate, the fermentation bacteria solution in the third groove and the industrial organic wastewater fully react to produce biogas, which reduces the time cost of the staff; the first connecting rod can be rotated to make the biogas uniformly sprayed in the inside of second groove through the second connecting rod, the biogas and the desulfurization liquid contact more fully, the biogas contacts the desulfurizer and reacts after passing through the desulfurization acid liquid, which further improves the desulfurization effect and improves the practicability of the device.

Description

Technical Field

[0001] This invention relates to the field of biogas equipment technology, specifically to an integrated device for wastewater purification and deep desulfurization of biogas. Background Technology

[0002] Industrial organic wastewater refers to wastewater with a concentration of 2000 mg / L or higher discharged from industries such as papermaking, leather, and food processing. This wastewater is highly polluting, and direct discharge into the natural environment will cause serious pollution. Currently, refining industrial wastewater into biogas and then decomposing it is a low-cost and highly automated process. During the biogas collection process, desulfurization treatment is necessary before transportation; otherwise, the hydrogen sulfide in the biogas will corrode the pipelines, greatly affecting transportation safety. Furthermore, the combustion of hydrogen sulfide in biogas easily produces harmful substances such as sulfur dioxide, necessitating desulfurization treatment.

[0003] An existing invention patent with application number CN202220271136.6 proposes a biogas extraction device, particularly an industrial organic wastewater biogas extraction device. This invention provides an industrial organic wastewater biogas extraction device with good sealing properties and automatic addition of microorganisms. The device includes: a support base with a circular hole at the front top of the support base, into which a reaction chamber is disposed; a storage box located near the top of the reaction chamber's outer wall; and a stopper with a circular hole at the center top of the storage box, into which a stopper is disposed. The operator opens the sealed cover by rotating it to the right, adds industrial organic wastewater into the reaction chamber, and then pulls down a sliding lever.

[0004] An existing invention patent with application number CN202320611480.X proposes a biogas desulfurization device, relating to the field of biogas desulfurization technology. It includes a housing, with a pump fixedly connected to the lower end of the housing's inner wall. A connecting pipe is fixedly connected to the upper output end of the pump. A desulfurization chamber is fixedly connected to the upper end of the housing's inner wall. A through hole is opened on the lower side wall of the desulfurization chamber, and a connecting pipe is fixedly sleeved within the through hole. A one-way valve is fixedly connected to the upper end of the connecting pipe. A support plate is fixedly connected to the upper end of the one-way valve. Multiple gas outlet pipes are fixedly connected to the upper end of the support plate, and multiple circular openings are opened on the surface of the gas outlet pipes. A gas outlet is fixedly connected to the upper end of the housing, and the lower end of the gas outlet penetrates the side walls of the housing and the desulfurization chamber. An air inlet is fixedly sleeved within the wall of the connecting pipe, with one end of the air inlet penetrating the side wall of the housing. This invention can achieve cleaning of the inner wall of the air inlet and increase the contact area between biogas and the desulfurizing agent, thereby improving working efficiency.

[0005] The invention with application number CN202220271136.6 mentioned above does not have a stirring and mixing mechanism. The fermentation bacteria solution in the reaction tank of the device cannot fully react with the industrial organic wastewater to produce biogas, which increases the time cost of the staff. The invention with application number CN202320611480.X only performs desulfurization treatment by contacting biogas with desulfurizing agent solution. The treatment method is simple and reduces the practicality of the device. Therefore, an integrated device for wastewater purification and deep desulfurization of biogas is provided to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated wastewater purification and biogas deep desulfurization device to solve the problems mentioned in the background art, such as the inability of the fermentation bacteria solution in the reaction tank of the device to fully react with industrial organic wastewater to produce biogas, which increases the time cost of workers; and the single biogas desulfurization treatment method, which reduces the practicality of the device.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] This invention provides an integrated wastewater purification and biogas deep desulfurization device, comprising a treatment tank. The treatment tank has a first groove inside, a third groove inside the treatment tank and below the first groove, and a second groove inside the treatment tank and to one side of the third groove. A first stirring rod is rotatably connected inside the third groove. A rotating rod is rotatably connected inside the first groove. A second stirring rod is fixedly connected to the bottom of the rotating rod. Connecting plates are fixedly connected to the outer sides of both the second and first stirring rods. Stirring blades are fixedly connected to the outer sides of the connecting plates. A rotating rod is rotatably connected inside the second groove. A first fixing frame is fixedly connected to the bottom of the rotating rod. A third stirring rod is symmetrically rotatably connected inside the first fixing frame. A first connecting rod is fixedly connected to the bottom of the first fixing frame. A second connecting rod is symmetrically fixedly connected to the outer side of the first connecting rod.

[0009] Workers add industrial organic wastewater into the third tank through the inlet, then close the inlet. Next, they add the fermentation solution into the third tank through the inlet pipe, which is equipped with a one-way valve. When the fermentation solution in the third tank is sufficient, a servo motor is activated to rotate the first shaft. The first shaft drives a second shaft via a belt, which in turn drives a first stirring rod via a belt. Simultaneously, the second shaft drives a second gear, which, in turn, rotates a rotating rod. This, through a connecting plate, causes the stirring blades to rotate inside the third tank. The fermentation solution in the third tank reacts with the industrial organic wastewater... The wastewater is fully reacted to produce biogas, reducing the time cost for workers. The biogas is transported to the inside of the first connecting rod through the second fixed pipe and rotary joint. A one-way valve is installed inside the second fixed pipe. The biogas is evenly sprayed out into the second tank through the second connecting rod. The first rotating shaft drives the rotating rod to rotate via a belt. The rotating rod drives the first connecting rod to rotate via the first fixed frame, allowing the biogas to have more thorough contact with the desulfurization liquid. At the same time, the first connecting rod drives the eccentric wheel to rotate. The eccentric wheel drives the third connecting rod to rotate inside the second fixed frame. The third connecting rod pushes the moving plate to move. The moving plate pushes the sealing plate to move inside the fixed block via a push rod, thereby pushing... The desulfurization liquid inside the water outlet pipe is injected into the connecting frame, and finally sprayed out from the nozzle, allowing the biogas to fully contact the desulfurization liquid again. When the eccentric wheel drives the third connecting rod away from the moving plate, the moving plate, under the elastic force of the telescopic spring, pushes the sealing plate back to its original position, thus allowing the desulfurization liquid to be injected into the fixed block through the water inlet pipe. Both the water inlet and outlet pipes are equipped with one-way valves to keep the desulfurization liquid in the second tank in a circulating state, thereby making the concentration of the desulfurization liquid in the second tank uniform. The biogas continues to rise through the through holes inside the first fixed plate and comes into contact with the desulfurizing agent. After being adsorbed by the desulfurizing agent, the desulfurization purpose is achieved, and the external oxygen is introduced. The device is connected to the first fixed pipe, allowing oxygen to enter the ventilation hole through the first fixed frame. The oxygen then exits through the ventilation hole into the desulfurizing agent, where it reacts with the desulfurizing agent, thus regenerating it. Simultaneously, the rotating rod drives the third stirring rod to rotate inside the second tank. The third stirring rod drives the second bevel gear to rotate. The cooperation between the second and first bevel gears drives the third stirring rod itself to rotate, facilitating the agitation of the desulfurizing agent. This allows the desulfurizing agent to be agitated and oxygenated simultaneously, thereby improving the desulfurizing agent regeneration efficiency. Furthermore, the biogas can be evenly contacted with the desulfurizing agent, and the desulfurized biogas is discharged through the ventilation pipe, enhancing the practicality of the device.

[0010] In a preferred embodiment of the present invention, a second rotating shaft is rotatably connected inside the first groove, a second gear is fixedly connected to the outside of the second rotating shaft, and a first gear is fixedly connected to the outside of the rotating rod, wherein the first gear and the second gear are meshed together.

[0011] The second shaft drives the second gear to rotate, and the second gear, together with the first gear, drives the rotating rod to rotate, which in turn drives the stirring blade to rotate inside the third groove via the connecting plate.

[0012] As a preferred embodiment of the present invention, the processing box is fixedly connected to an inlet, an air vent, and a liquid inlet. Pulleys are fixedly connected to the outer side of the second rotating shaft and the outer side of the first stirring rod, and the two pulleys are connected by belt drive.

[0013] Workers added industrial organic wastewater into the third tank through the feed inlet, then closed the feed inlet. Subsequently, workers added the fermentation bacteria solution into the third tank through the liquid inlet pipe, which was equipped with a one-way valve. The second rotating shaft drove the first stirring rod to rotate via a belt.

[0014] In a preferred embodiment of the present invention, a servo motor is fixedly connected inside the first slot, and the output end of the servo motor is fixedly connected to a first rotating shaft via a coupling. Pulleys are fixedly connected to the outer sides of both the first and second rotating shafts, and the two pulleys are connected by belt drive.

[0015] The servo motor is started to drive the first shaft to rotate, and the first shaft drives the second shaft to rotate via a belt.

[0016] As a preferred embodiment of the present invention, pulleys are fixedly connected to the outer side of the first rotating shaft and the outer side of the rotating rod, and the two pulleys are connected by belt drive.

[0017] The first rotating shaft drives the rotating rod to rotate via a belt, and the rotating rod drives the first connecting rod to rotate via the first fixed frame, so that the biogas and desulfurization liquid can come into more complete contact.

[0018] As a preferred embodiment of the present invention, a first fixed pipe is fixedly connected inside the first groove, a first bevel gear is fixedly connected to the outside of the first fixed pipe, a second bevel gear is fixedly connected to one end of the third stirring rod, the second bevel gear meshes with the first bevel gear, and ventilation holes are equidistantly opened inside the first fixed frame.

[0019] An external oxygen device is connected to the first fixed pipe, allowing oxygen to enter the ventilation hole through the first fixed frame. The oxygen is then discharged from the ventilation hole into the desulfurizing agent, where it reacts with the desulfurizing agent, thus regenerating it. As the rotating rod rotates, it drives the third stirring rod to rotate inside the second tank. The third stirring rod drives the second bevel gear to rotate. The cooperation between the second and first bevel gears drives the third stirring rod to rotate, which facilitates the agitation of the desulfurizing agent. This allows the desulfurizing agent to be agitated and oxygenated simultaneously, thereby improving the desulfurizing agent regeneration efficiency.

[0020] As a preferred embodiment of the present invention, a second fixed pipe is fixedly connected inside the processing box, the second fixed pipe is connected to the third groove, and a rotary joint is installed at one end of the second fixed pipe, the rotary joint being fixedly connected to the first connecting rod.

[0021] The fermentation solution in the third tank reacts fully with the industrial organic wastewater to produce biogas, reducing the time cost for workers. The biogas is transported to the inside of the first connecting rod through the second fixed pipe and rotary joint. A one-way valve is installed inside the second fixed pipe, and the biogas is evenly sprayed out inside the second tank through the second connecting rod.

[0022] In a preferred embodiment of the present invention, a connecting frame is fixedly connected inside the second tank, a nozzle is fixedly connected at equal intervals inside the connecting frame, a water outlet pipe is fixedly connected to the outside of the connecting frame, and a first fixing plate is fixedly connected inside the second tank and above the connecting frame.

[0023] The desulfurization liquid inside the outlet pipe is injected into the connecting frame, and finally the desulfurization liquid is sprayed out from the nozzle, so that the biogas can come into full contact with the desulfurization liquid again.

[0024] In a preferred embodiment of the present invention, a second fixed frame is fixedly connected inside the second groove, a movable plate is slidably connected inside the second fixed frame, a push rod is fixedly connected to one side of the movable plate, an eccentric wheel is fixedly connected to the outer side of the first connecting rod, a third connecting rod that cooperates with the movable plate is fixedly connected to the top of the eccentric wheel, a fixed block is fixedly connected inside the second groove, a sealing plate is slidably connected inside the fixed block, the sealing plate is fixedly connected to the push rod, and a water inlet pipe is fixedly connected to the bottom of the fixed block.

[0025] The first connecting rod drives the eccentric wheel to rotate, the eccentric wheel drives the third connecting rod to rotate inside the second fixed frame, the third connecting rod pushes the moving plate to move, and the moving plate pushes the sealing plate to move inside the fixed block through the push rod.

[0026] As a preferred embodiment of the present invention, a second fixing plate is symmetrically fixedly connected inside the second fixing frame, a limiting rod is fixedly connected to one side of the second fixing plate, the limiting rod is slidably connected to the moving plate, and a telescopic spring is sleeved on the outside of the limiting rod and located between the moving plate and the second fixing plate.

[0027] When the eccentric wheel drives the third connecting rod away from the moving plate, the moving plate, under the elastic force of the telescopic spring, drives the sealing plate to return to its original position through the push rod. This allows desulfurization liquid to be injected into the fixed block through the water inlet pipe. Both the water inlet and outlet pipes are equipped with check valves to keep the desulfurization liquid in the second tank in a circulating state, thereby making the concentration of the desulfurization liquid in the second tank uniform.

[0028] The beneficial effects achieved by this invention are as follows: The arrangement of the first stirring rod, the second stirring rod, and the stirring blades allows the rotating rod to drive the second stirring rod, while simultaneously rotating the first stirring rod. This, via the connecting plate, drives the stirring blades to rotate inside the third tank, ensuring the fermentation solution in the third tank fully reacts with the industrial organic wastewater to produce biogas, thus reducing the time cost for workers. The arrangement of the second tank, the nozzle, and the second connecting rod allows the rotating first connecting rod to evenly spray biogas inside the second tank via the second connecting rod, ensuring more thorough contact between the biogas and the desulfurization liquid. Simultaneously, the desulfurization liquid is injected into the connecting frame through the fixing block and the outlet pipe, and then sprayed out through the nozzle, allowing the biogas to once again fully contact the desulfurization liquid. After passing through the desulfurization liquid, the biogas rises through the through-holes inside the first fixing plate to react with the desulfurizing agent, further improving the desulfurization effect and enhancing the practicality of the device. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0032] Figure 3 This is a three-dimensional structural diagram of the second stirring rod in this invention;

[0033] Figure 4 This is a three-dimensional structural diagram of the second fixed frame in this invention;

[0034] Figure 5 This is a three-dimensional structural diagram of the connecting frame in this invention;

[0035] Figure 6 This is a magnified 3D structural diagram of point A;

[0036] Figure 7 This is a magnified 3D structural diagram of point B.

[0037] In the diagram: 1. Processing tank; 2. Feed inlet; 3. Liquid inlet pipe; 4. First fixed pipe; 5. First tank; 6. Rotating rod; 7. Second tank; 8. First fixed frame; 9. First fixed plate; 10. Connecting frame; 11. First connecting rod; 12. Second connecting rod; 13. ; 14. First stirring rod; 15. Third tank; 16. Stirring blade; 17. Second stirring rod; 18. Second fixed pipe; 19. Connecting plate; 20. Fixed block; 21. Vent pipe; 22. Third stirring rod ; 23. Inlet pipe; 24. Outlet pipe; 25. Rotary joint; 26. Second fixed plate; 27. Telescopic spring; 28. Push rod; 29. ​​Moving plate; 30. Third connecting rod; 31. Limiting rod; 32. Nozzle; 33. Servo motor; 34. First rotating shaft; 35. First gear; 36. Second gear; 37. Rotating rod; 38. Second rotating shaft; 39. First bevel gear; 40. Ventilation hole; 41. Second bevel gear; 42. Sealing plate; 43. Eccentric wheel. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1 to 7 This invention provides an integrated wastewater purification and biogas deep desulfurization device, including a treatment tank 1. A first groove 5 is formed inside the treatment tank 1. A third groove 15 is formed inside the treatment tank 1 and below the first groove 5. A second groove 7 is formed inside the treatment tank 1 and to one side of the third groove 15. A first stirring rod 14 is rotatably connected inside the third groove 15. A rotating rod 37 is rotatably connected inside the first groove 5. A second stirring rod 17 is fixedly connected to the bottom of the rotating rod 37. Connecting plates 19 are fixedly connected to the outer sides of both the second stirring rod 17 and the first stirring rod 14. A stirring blade 16 is fixedly connected to the outer side of the connecting plate 19. A rotating rod 6 is rotatably connected inside the second groove 7. A first fixing frame 8 is fixedly connected to the bottom of the rotating rod 6. A third stirring rod 22 is symmetrically rotatably connected inside the first fixing frame 8. A first connecting rod 11 is fixedly connected to the bottom of the first fixing frame 8. A second connecting rod 12 is symmetrically fixedly connected to the outer side of the first connecting rod 11.

[0040] Understandably, the worker adds industrial organic wastewater into the third tank 15 through inlet 2, then closes inlet 2. Next, the worker adds the fermentation solution into the third tank 15 through inlet pipe 3, which is equipped with a one-way valve. When the fermentation solution in the third tank 15 is sufficient, the servo motor 33 is activated to drive the first rotating shaft 34 to rotate. The first rotating shaft 34 drives the second rotating shaft 38 to rotate via a belt. The second rotating shaft 38 drives the first stirring rod 14 to rotate via a belt. Simultaneously, the second rotating shaft 38 drives the second gear 36 to rotate. Under the action of the second gear 36 and the first gear 35, the rotating rod 37 rotates, which in turn drives the stirring blade 16 to rotate inside the third tank 15 via the connecting plate 19. The fermentation solution in section 5 reacts fully with the industrial organic wastewater to produce biogas, reducing the time cost for workers. The biogas is transported to the inside of the first connecting rod 11 through the second fixed pipe 18 and the rotary joint 25. A one-way valve is installed inside the second fixed pipe 18. The biogas is evenly sprayed out inside the second tank 7 through the second connecting rod 12. The first rotating shaft 34 drives the rotating rod 6 to rotate through the belt. The rotating rod 6 drives the first connecting rod 11 to rotate through the first fixed frame 8, making the biogas and desulfurization liquid more fully contacted. At the same time, the first connecting rod 11 drives the eccentric wheel 43 to rotate. The eccentric wheel 43 drives the third connecting rod 30 to rotate inside the second fixed frame 13. The third connecting rod 30 pushes the moving plate 29 to move. The moving plate 29 pushes the sealing plate through the push rod 28. 42 moves inside the fixed block 20, thereby pushing the desulfurization liquid inside the outlet pipe 24 into the connecting frame 10. Finally, the desulfurization liquid is sprayed out by the nozzle 32, so that the biogas can fully contact the desulfurization liquid again. When the eccentric wheel 43 drives the third connecting rod 30 away from the moving plate 29, the moving plate 29, under the elastic force of the telescopic spring 27, drives the sealing plate 42 to return to its original position through the push rod 28. Thus, the desulfurization liquid can be injected into the fixed block 20 through the inlet pipe 23. One-way valves are installed inside both the inlet pipe 23 and the outlet pipe 24 to keep the desulfurization liquid in the second tank 7 in a circulating state, so that the concentration of the desulfurization liquid in the second tank 7 is uniform. The biogas continues to rise through the through hole inside the first fixed plate 9 to contact the desulfurizing agent. After being adsorbed by the desulfurizing agent, it reaches the desired concentration. To achieve desulfurization, an external oxygen device is connected to the first fixed pipe 4, allowing oxygen to enter the ventilation hole 40 through the first fixed frame 8. The oxygen is then discharged from the ventilation hole 40 into the desulfurizing agent, where it reacts with the desulfurizing agent, thus regenerating it. Simultaneously, the rotating rod 6 drives the third stirring rod 22 to rotate inside the second tank 7. The third stirring rod 22 drives the second bevel gear 41 to rotate. The cooperation between the second bevel gear 41 and the first bevel gear 39 enables the third stirring rod 22 to rotate, facilitating the agitation of the desulfurizing agent. This allows the desulfurizing agent to be agitated and oxygenated simultaneously, thereby improving the desulfurizing agent regeneration efficiency. Furthermore, the biogas can be evenly contacted with the desulfurizing agent. The desulfurized biogas is discharged through the ventilation pipe 21, enhancing the practicality of the device.

[0041] Furthermore, a second rotating shaft 38 is rotatably connected inside the first groove 5, a second gear 36 is fixedly connected to the outside of the second rotating shaft 38, and a first gear 35 is fixedly connected to the outside of the rotating rod 37. The first gear 35 and the second gear 36 are meshed together.

[0042] Understandably, the second rotating shaft 38 drives the second gear 36 to rotate, and the second gear 36 and the first gear 35 together drive the rotating rod 37 to rotate, which in turn drives the stirring blade 16 to rotate inside the third groove 15 through the connecting plate 19.

[0043] Furthermore, the inside of the processing box 1 is fixedly connected to a feed inlet 2, a vent pipe 21, and a liquid inlet pipe 3. The outer side of the second rotating shaft 38 and the outer side of the first stirring rod 14 are both fixedly connected to pulleys, and the two pulleys are connected by belt drive.

[0044] Understandably, the staff adds industrial organic wastewater into the third tank 15 through the feed inlet 2, then closes the feed inlet 2, and then adds the fermentation bacteria solution into the third tank 15 through the liquid inlet pipe 3. The liquid inlet pipe 3 is equipped with a one-way valve, and the second rotating shaft 38 drives the first stirring rod 14 to rotate via a belt.

[0045] Furthermore, a servo motor 33 is fixedly connected inside the first slot 5. The output end of the servo motor 33 is fixedly connected to a first rotating shaft 34 via a coupling. Pulleys are fixedly connected to the outer side of the first rotating shaft 34 and the outer side of the second rotating shaft 38, and the two pulleys are connected by belt drive.

[0046] It is understandable that starting the servo motor 33 drives the first rotating shaft 34 to rotate, and the first rotating shaft 34 drives the second rotating shaft 38 to rotate via a belt.

[0047] Furthermore, pulleys are fixedly connected to the outer side of the first rotating shaft 34 and the outer side of the rotating rod 6, and the two pulleys are connected by belt drive.

[0048] Understandably, the first rotating shaft 34 drives the rotating rod 6 to rotate via a belt, and the rotating rod 6 drives the first connecting rod 11 to rotate via the first fixed frame 8, so that the biogas and desulfurization liquid can come into more complete contact.

[0049] Furthermore, a first fixed pipe 4 is fixedly connected inside the first groove 5, a first bevel gear 39 is fixedly connected to the outside of the first fixed pipe 4, a second bevel gear 41 is fixedly connected to one end of the third stirring rod 22, the second bevel gear 41 meshes with the first bevel gear 39, and ventilation holes 40 are equidistantly opened inside the first fixed frame 8.

[0050] It is understandable that connecting the external oxygen device to the first fixed pipe 4 allows oxygen to enter the ventilation hole 40 through the first fixed frame 8, and then the oxygen is discharged from the ventilation hole 40 into the desulfurizing agent, thereby reacting with the desulfurizing agent and regenerating it. While the rotating rod 6 is rotating, it drives the third stirring rod 22 to rotate inside the second tank 7. The third stirring rod 22 drives the second bevel gear 41 to rotate. With the cooperation of the second bevel gear 41 and the first bevel gear 39, the third stirring rod 22 can rotate itself, which facilitates the stirring of the desulfurizing agent, so that the desulfurizing agent can be stirred and oxygenated at the same time, thereby improving the desulfurizing agent regeneration efficiency.

[0051] Furthermore, a second fixed pipe 18 is fixedly connected inside the processing box 1. The second fixed pipe 18 is connected to the third groove 15. A rotary joint 25 is installed at one end of the second fixed pipe 18. The rotary joint 25 is fixedly connected to the first connecting rod 11.

[0052] Understandably, the fermentation solution in the third tank 15 reacts fully with the industrial organic wastewater to produce biogas, reducing the time cost for workers. The biogas is transported to the inside of the first connecting rod 11 through the second fixed pipe 18 and the rotary joint 25. A one-way valve is installed inside the second fixed pipe 18, and the biogas is evenly sprayed out inside the second tank 7 through the second connecting rod 12.

[0053] Furthermore, a connecting frame 10 is fixedly connected inside the second tank 7, and nozzles 32 are fixedly connected at equal intervals inside the connecting frame 10. A water outlet pipe 24 is fixedly connected to the outside of the connecting frame 10, and a first fixing plate 9 is fixedly connected inside the second tank 7 and above the connecting frame 10.

[0054] Understandably, the desulfurization liquid inside the outlet pipe 24 is injected into the connecting frame 10, and finally the desulfurization liquid is sprayed out by the nozzle 32, so that the biogas can come into full contact with the desulfurization liquid again.

[0055] Furthermore, a second fixed frame 13 is fixedly connected inside the second groove 7, a movable plate 29 is slidably connected inside the second fixed frame 13, a push rod 28 is fixedly connected to one side of the movable plate 29, an eccentric wheel 43 is fixedly connected to the outside of the first connecting rod 11, a third connecting rod 30 that works with the movable plate 29 is fixedly connected to the top of the eccentric wheel 43, a fixed block 20 is fixedly connected inside the second groove 7, a sealing plate 42 is slidably connected inside the fixed block 20, the sealing plate 42 is fixedly connected to the push rod 28, and a water inlet pipe 23 is fixedly connected to the bottom of the fixed block 20.

[0056] Understandably, the first connecting rod 11 drives the eccentric wheel 43 to rotate, the eccentric wheel 43 drives the third connecting rod 30 to rotate inside the second fixed frame 13, the third connecting rod 30 pushes the moving plate 29 to move, and the moving plate 29 pushes the sealing plate 42 to move inside the fixed block 20 through the push rod 28.

[0057] Furthermore, a second fixed plate 26 is symmetrically fixedly connected inside the second fixed frame 13. A limit rod 31 is fixedly connected to one side of the second fixed plate 26. The limit rod 31 is slidably connected to the moving plate 29. A telescopic spring 27 is sleeved on the outside of the limit rod 31 and located between the moving plate 29 and the second fixed plate 26.

[0058] Understandably, when the eccentric wheel 43 drives the third connecting rod 30 away from the moving plate 29, the moving plate 29, under the elastic force of the telescopic spring 27, drives the sealing plate 42 to return to its original position through the push rod 28. Thus, desulfurization liquid can be injected into the interior of the fixed block 20 through the water inlet pipe 23. Both the water inlet pipe 23 and the water outlet pipe 24 are equipped with one-way valves to keep the desulfurization liquid in the second tank 7 in a circulating state, thereby making the concentration of the desulfurization liquid in the second tank 7 uniform.

[0059] 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. An integrated wastewater purification and biogas deep desulfurization device, comprising a treatment tank (1), characterized in that: The processing box (1) has a first groove (5) inside, and a third groove (15) is opened inside the processing box (1) below the first groove (5). A second groove (7) is opened inside the processing box (1) on one side of the third groove (15). A first stirring rod (14) is rotatably connected inside the third groove (15). A rotating rod (37) is rotatably connected inside the first groove (5). The bottom of the rotating rod (37) extends into the third groove (15) and is fixedly connected to a second stirring rod (17). A connecting plate (19) is fixedly connected to the outside of the first stirring rod (14). A stirring blade (16) is fixedly connected to the outside of the connecting plate (19). A rotating rod (6) is rotatably connected inside the second groove (7). A first fixing frame (8) is fixedly connected to the bottom of the rotating rod (6). A third stirring rod (22) is symmetrically rotatably connected inside the first fixing frame (8). A first connecting rod (11) is fixedly connected to the bottom of the first fixing frame (8). A second connecting rod (12) is symmetrically fixedly connected to the outside of the first connecting rod (11). The processing box (1) is fixedly connected to a second fixed pipe (18), which is connected to a third groove (15). A rotary joint (25) is installed at one end of the second fixed pipe (18), and the rotary joint (25) is fixedly connected to a first connecting rod (11). Biogas is transported to the inside of the first connecting rod (11) through the second fixed pipe (18) and the rotary joint (25). Biogas is evenly sprayed out inside the second groove (7) through the second connecting rod (12). The second groove (7) is fixedly connected to a connecting frame (10), and the connecting frame (10) is fixedly connected to a nozzle (32) at equal intervals. The connecting frame (10) is fixedly connected to a water outlet pipe (24) on the outside. The second groove (7) is fixedly connected to a second fixed frame (13), and the second fixed frame (13) is slidably connected to a moving plate (29). A push rod (28) is fixedly connected to one side of the moving plate (29). An eccentric wheel (43) is fixedly connected to the outside of the first connecting rod (11). A third connecting rod (30) that works with the moving plate (29) is fixedly connected to the top of the eccentric wheel (43). A fixed block (20) is fixedly connected to the inside of the second groove (7). A sealing plate (42) is slidably connected to the inside of the fixed block (20). The sealing plate (42) is fixedly connected to the push rod (28). A water inlet pipe (23) is fixedly connected to the bottom of the fixed block (20). The fixed block (20) is connected to the water outlet pipe (24).

2. The integrated wastewater purification and biogas deep desulfurization device according to claim 1, characterized in that: The first groove (5) is rotatably connected to a second rotating shaft (38), and a second gear (36) is fixedly connected to the outside of the second rotating shaft (38). The rotating rod (37) is fixedly connected to a first gear (35), and the first gear (35) and the second gear (36) are meshed together.

3. The integrated wastewater purification and biogas deep desulfurization device according to claim 2, characterized in that: The processing box (1) is fixedly connected to a feed inlet (2), a vent pipe (21) and a liquid inlet pipe (3). The outer side of the second rotating shaft (38) and the outer side of the first stirring rod (14) are both fixedly connected to pulleys, and the two pulleys are connected by belt drive.

4. The integrated wastewater purification and biogas deep desulfurization device according to claim 3, characterized in that: A servo motor (33) is fixedly connected inside the first slot (5). The output end of the servo motor (33) is fixedly connected to a first rotating shaft (34) via a coupling. Pulleys are fixedly connected to the outer side of the first rotating shaft (34) and the outer side of the second rotating shaft (38). The two pulleys are connected by belt drive.

5. The integrated wastewater purification and biogas deep desulfurization device according to claim 4, characterized in that: Both the outer side of the first rotating shaft (34) and the outer side of the rotating rod (6) are fixedly connected to pulleys, and the two pulleys are connected by belt drive.

6. The integrated wastewater purification and biogas deep desulfurization device according to claim 1, characterized in that: The first groove (5) is fixedly connected to the inside of the first fixed tube (4), and the first fixed tube (4) is fixedly connected to the outside of the first bevel gear (39). The third stirring rod (22) is fixedly connected to one end of the second bevel gear (41), and the second bevel gear (41) meshes with the first bevel gear (39). Ventilation holes (40) are provided at equal intervals inside the first fixed frame (8).

7. The integrated wastewater purification and biogas deep desulfurization device according to claim 1, characterized in that: The first fixing plate (9) is fixedly connected inside the second groove (7) and above the connecting frame (10).

8. The integrated wastewater purification and biogas deep desulfurization device according to claim 1, characterized in that: The second fixed frame (13) is symmetrically fixedly connected to a second fixed plate (26). A limit rod (31) is fixedly connected to one side of the second fixed plate (26). The limit rod (31) is slidably connected to the moving plate (29). A telescopic spring (27) is sleeved on the outside of the limit rod (31) and between the moving plate (29) and the second fixed plate (26).

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