An inward-flowing anaerobic reactor

Abstract

This utility model discloses an internal circulation anaerobic reactor, belonging to the technical field of anaerobic reactors. It includes: a reactor shell; two filter screens fixedly installed inside the reactor shell; an activated carbon adsorption device fixedly installed between the two filter screens; a primary three-phase separator and a secondary three-phase separator fixedly installed inside the reactor shell; the primary three-phase separator being positioned below the two filter screens; the secondary three-phase separator being positioned above the two filter screens; a sealed top cover fixedly installed at the top of the reactor shell; a gas-liquid separator fixedly installed at the top of the sealed top cover; a biogas discharge pipe fixedly installed at the top of the gas-liquid separator; and a support plate fixedly installed inside the reactor shell. This utility model utilizes a swing assembly to achieve uniform water distribution, an activated carbon adsorption device to improve water purification, and biogas lift to achieve internal circulation, reducing external power consumption. It features high efficiency, energy saving, and stability, and is suitable for treating high-concentration organic wastewater.

Description

Technical Field

[0001] This utility model relates to the field of anaerobic reactor technology, and in particular to a type of internal circulation anaerobic reactor. Background Technology

[0002] Before the advent of IC reactors, traditional anaerobic treatment technologies (such as anaerobic ponds and UASB reactors) had the following limitations: Low treatment efficiency: Traditional anaerobic reactors (such as anaerobic ponds) rely on gravity settling, resulting in insufficient contact between sludge and wastewater, leading to low treatment efficiency, especially for high-concentration organic wastewater. High energy consumption: Traditional reactors require external power equipment (such as agitators or pumps) to maintain sludge-water mixing, resulting in high energy consumption. Key innovations include: Increasing sludge concentration: By designing high-concentration sludge beds, the biomass within the reactor is increased, improving treatment efficiency. Internal circulation mechanism: Introducing internal circulation technology, utilizing biogas (methane) produced in the reaction as power to achieve internal circulation of the sludge-water mixture, reducing external energy consumption. Three-phase separation technology: Developing efficient three-phase separators to effectively separate gas, sludge, and clean water, preventing sludge loss and ensuring stable reactor operation. Structural optimization: Optimizing the reactor structure to make it more compact, reducing floor space while increasing treatment capacity. Resource recovery: Strengthening the collection and utilization of biogas to achieve energy recovery and improve economic efficiency.

[0003] Traditional anaerobic reactors suffer from the following problems when treating high-concentration organic wastewater: low treatment efficiency, insufficient contact between sludge and wastewater leading to slow reaction rates, reliance on external power equipment to maintain sludge-water mixing, low sludge concentration, susceptibility to water quality fluctuations, low biogas utilization rate, and poor energy recovery. Therefore, we propose an inward-flowing internal circulation anaerobic reactor to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to provide an in-feed internal circulation anaerobic reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An internal circulation anaerobic reactor includes: a reactor shell, two filter screens fixedly installed inside the reactor shell, a common activated carbon adsorption device fixedly installed between the two filter screens, a primary three-phase separator and a secondary three-phase separator fixedly installed inside the reactor shell, the primary three-phase separator being located below the two filter screens, the secondary three-phase separator being located above the two filter screens, a sealed top cover fixedly installed at the top of the reactor shell, a gas-water separator fixedly installed at the top of the sealed top cover, a biogas discharge pipe fixedly installed at the top of the gas-water separator, and a support plate fixedly installed inside the reactor shell, with a swing assembly disposed within the support plate.

[0006] Preferably, the oscillating assembly includes: two rotating rods and an atomizing nozzle. Both rotating rods are rotatably mounted within a support plate. A common limiting frame is fixedly mounted at the bottom of both support plates. A circular rod is rotatably mounted within the limiting frame. A worm gear is fixedly mounted on the circular rod. Two connecting strips are fixedly mounted on the circular rod. The atomizing nozzle is fixedly connected to the bottom of the two connecting strips. Two fixing blocks are fixedly mounted within the support plate. A common worm gear is rotatably mounted between the two fixing blocks, and the worm gear meshes with the worm wheel.

[0007] Preferably, a water inlet pipe is fixedly installed on one side of the reactor shell, a connecting pipe is fixedly installed on the water inlet pipe, a connecting water pipe is fixedly installed on one side of the connecting pipe, a folded pipe is fixedly installed on one side of the connecting water pipe, the folded pipe is fixedly connected to the top of the atomizing nozzle, and a drain pipe is fixedly installed on one side of the reactor shell.

[0008] Preferably, multiple supporting triangular plates are fixedly installed on the outer side of the reactor shell, and the bottom ends of the multiple supporting triangular plates are fixedly installed with the same fixed base. The reactor shell is provided with connection holes that match the water inlet pipe and the connecting water pipe, and the reactor shell is provided with fixing holes that match the drain pipe.

[0009] Preferably, a first motor is fixedly installed inside the support plate, and the output end of the first motor is fixedly connected to one of the rotating rods. A second motor is fixedly installed on one of the fixed blocks, and the output end of the second motor is fixedly connected to the worm gear.

[0010] Preferably, the support plate has a swing groove that matches the limiting frame, and a fixed circular groove that matches the motor is fixedly provided on one side of the inner wall of the swing groove. The limiting frame has a rotating circular hole that matches the circular rod.

[0011] In this utility model, an internal circulation anaerobic reactor is introduced into the reactor shell through an inlet pipe. The wastewater is then transported to the atomizing nozzle via connecting pipes, connecting water pipes, and folding pipes. At this time, motor one is started, and its output drives one of the rotating rods to rotate. Since the rotating rod is connected to the limiting frame, it drives the circular rod and the limiting frame to move. When the circular rod rotates, its two connecting plates rotate accordingly, thereby causing the atomizing nozzle to swing within the swing groove of the support plate. Simultaneously, motor two is started, and its output drives the worm gear to rotate. The worm gear meshes with the worm wheel, further causing the worm wheel to drive the circular rod and the two connecting plates to swing. During the swinging process, the atomizing nozzle evenly sprays the wastewater into the reactor shell, allowing the wastewater to fully contact the microorganisms in the reactor, thus improving the efficiency of the anaerobic reaction. The wastewater and the microorganisms in the reactor fully contact each other, and the resulting wastewater flows from bottom to top within the reactor shell. It first passes through a primary three-phase separator located below two filter screens, which initially separates the gas, liquid, and solid components in the wastewater. In this invention, an internal circulation anaerobic reactor further filters impurities in the liquid through a filter screen. The liquid then flows into an activated carbon adsorption device placed between two filter screens. The activated carbon adsorption device adsorbs and purifies organic matter, odors, and other substances in the liquid. The liquid, after being purified by the activated carbon adsorption device, continues to rise and passes through a two-stage three-phase separator located above the two filter screens. The two-stage three-phase separator further separates the liquid into gas, liquid, and solid components, further purifying the liquid. The separated gas rises to the sealed top cover at the top of the reactor shell and then enters a gas-water separator. The gas-water separator separates the moisture from the gas, and the pure biogas is discharged through the biogas discharge pipe for subsequent energy utilization. The purified water, after multi-stage treatment and separation, is discharged from the reactor through a drain pipe on one side of the reactor shell, completing the entire wastewater treatment process. At the same time, multiple supporting triangular plates and fixed bases on the outside of the reactor shell provide stable support for the reactor, ensuring the safety and stability of the reactor during use. This utility model has a reasonable structural design. The swing component achieves uniform water distribution, the activated carbon adsorption device improves the water purification effect, and the biogas gas action realizes internal circulation, reducing external power consumption. It has the characteristics of high efficiency, energy saving and stability, and is suitable for the treatment of high-concentration organic wastewater. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of an internal circulation anaerobic reactor proposed in this utility model. Figure 2 This is a cross-sectional structural schematic diagram of an internal circulation anaerobic reactor proposed in this utility model; Figure 3This is a partial structural cross-sectional schematic diagram of an internal circulation anaerobic reactor proposed in this utility model; Figure 4 for Figure 3 A magnified view of part A in the middle.

[0013] In the diagram: 1. Reactor shell; 2. Supporting triangular plate; 3. Fixed base; 4. Sealed top cover; 5. Gas-water separator; 6. Drain pipe; 7. Biogas discharge pipe; 8. Water inlet pipe; 9. Support plate; 10. Atomizing nozzle; 11. Primary three-phase separator; 12. Connecting pipe; 13. Activated carbon adsorption device; 14. Secondary three-phase separator; 15. Filter screen; 16. Connecting water pipe; 17. Motor 1; 18. Rotating rod; 19. Limiting frame; 20. Worm gear; 21. Circular rod; 22. Fixing block; 23. Worm; 24. Motor 2; 25. Connecting strip; 26. Folded tube. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-4 An internal circulation anaerobic reactor includes: a reactor shell 1, two filter screens 15 fixedly installed inside the reactor shell 1, an activated carbon adsorption device 13 fixedly installed between the two filter screens 15, a primary three-phase separator 11 and a secondary three-phase separator 14 fixedly installed inside the reactor shell 1, the primary three-phase separator 11 being located below the two filter screens 15, the secondary three-phase separator 14 being located above the two filter screens 15, a sealing top cover 4 fixedly installed at the top of the reactor shell 1, a gas-water separator 5 fixedly installed at the top of the sealing top cover 4, a biogas discharge pipe 7 fixedly installed at the top of the gas-water separator 5, and a support plate 9 fixedly installed inside the reactor shell 1, with a swing assembly disposed inside the support plate 9.

[0016] In this embodiment, the swing assembly includes: two rotating rods 18 and an atomizing nozzle 10. Both rotating rods 18 are rotatably mounted within a support plate 9. The bottom ends of the two support plates 9 are fixedly mounted with the same limiting frame 19. A circular rod 21 is rotatably mounted within the limiting frame 19. A worm gear 20 is fixedly mounted on the circular rod 21. Two connecting strips 25 are fixedly mounted on the circular rod 21. The atomizing nozzle 10 is fixedly connected to the bottom ends of the two connecting strips 25. Two fixing blocks 22 are fixedly mounted within the support plate 9. A worm gear 23 is rotatably mounted between the two fixing blocks 22. The worm gear 23 meshes with the worm gear 20, expanding the range.

[0017] In this embodiment, a water inlet pipe 8 is fixedly installed on one side of the reactor shell 1, a connecting pipe 12 is fixedly installed on the water inlet pipe 8, a connecting water pipe 16 is fixedly installed on one side of the connecting pipe 12, a folded pipe 26 is fixedly installed on one side of the connecting water pipe 16, the folded pipe 26 is fixedly connected to the top of the atomizing nozzle 10, and a drain pipe 6 is fixedly installed on one side of the reactor shell 1 for convenient drainage.

[0018] In this embodiment, multiple supporting triangular plates 2 are fixedly installed on the outer side of the reactor shell 1, and the bottom ends of the multiple supporting triangular plates 2 are fixedly installed with the same fixed base 3. The reactor shell 1 is provided with connection holes that match the water inlet pipe 8 and the connecting water pipe 16, and the reactor shell 1 is provided with fixing holes that match the drain pipe 6 for further connection.

[0019] In this embodiment, a motor 17 is fixedly installed inside the support plate 9. The output end of the motor 17 is fixedly connected to one of the rotating rods 18. A motor 24 is fixedly installed on one of the fixing blocks 22. The output end of the motor 24 is fixedly connected to the worm gear 23 for easy installation. The support plate 9 has a swing groove that matches the limiting frame 19. A fixed circular groove that matches the motor 17 is fixedly opened on one side of the inner wall of the swing groove. The limiting frame 19 has a rotating circular hole that matches the circular rod 21 for better movement.

[0020] In this embodiment, during use, wastewater to be treated is introduced into the reactor shell 1 through the inlet pipe 8. The wastewater is then transported to the atomizing nozzle 10 via the connecting pipe 12, the connecting water pipe 16, and the folded pipe 26. At this time, the motor 17 is started, and the output of the motor 17 drives one of the rotating rods 18 to rotate. Since the rotating rod 18 is connected to the limiting frame 19, it drives the circular rod 21 to move with the limiting frame 19. When the circular rod 21 rotates, its two connecting strips 25 rotate accordingly, thereby causing the atomizing nozzle 10 to swing within the swing groove of the support plate 9. Simultaneously, the start-up... Motor 24, at its output, drives worm 23 to rotate. Worm 23 meshes with worm wheel 20, further causing worm wheel 20 to drive circular rod 21 and two connecting plates 25 to swing. During the swinging process, atomizing nozzle 10 evenly sprays wastewater into the reactor shell 1, ensuring full contact between the wastewater and the microorganisms in the reactor, thus improving the efficiency of the anaerobic reaction. Other substances generated by the full contact between the wastewater and the microorganisms in the reactor flow from bottom to top within the reactor shell 1, first passing through a primary three-phase separator 11 located below the two filter screens 15. The primary three-phase separator 11 separates the gas in the wastewater... The liquid and solid undergo initial separation. The gas rises, the solid settles, and the liquid continues to flow upwards, passing through two filter screens 15. The filter screens 15 further filter impurities in the liquid, and then the liquid flows into an activated carbon adsorption device 13 located between the two filter screens 15. The activated carbon adsorption device 13 adsorbs and purifies organic matter, odors, and other substances in the liquid. The liquid purified by the activated carbon adsorption device 13 continues to rise and passes through a secondary three-phase separator 14 located above the two filter screens 15. The secondary three-phase separator 14 further separates the liquid into gas, liquid, and solid components, further purifying the liquid. The separated gas rises to the sealed top cover 4 at the top of the reactor shell 1 and then enters the gas-water separator 5. The gas-water separator 5 separates the moisture from the gas, and the pure biogas is discharged through the biogas discharge pipe 7, which can be used for subsequent energy utilization. The purified water after multi-stage treatment and separation is discharged from the reactor through the drain pipe 6 on one side of the reactor shell 1, completing the entire wastewater treatment process. At the same time, multiple supporting triangular plates 2 and fixed bases 3 on the outside of the reactor shell 1 provide stable support for the reactor, ensuring the safety and stability of the reactor during use.

[0021] The foregoing has provided a detailed description of the inlet-type internal circulation anaerobic reactor provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A type of internal circulation anaerobic reactor, characterized in that, include: The reactor shell (1) has two filter screens (15) fixedly installed inside it. An activated carbon adsorption device (13) is fixedly installed between the two filter screens (15). A primary three-phase separator (11) and a secondary three-phase separator (14) are fixedly installed inside the reactor shell (1). The primary three-phase separator (11) is located below the two filter screens (15), and the secondary three-phase separator (14) is located above the two filter screens (15). A sealing top cover (4) is fixedly installed at the top of the reactor shell (1). A gas-water separator (5) is fixedly installed at the top of the sealing top cover (4). A biogas discharge pipe (7) is fixedly installed at the top of the gas-water separator (5). A support plate (9) is fixedly installed inside the reactor shell (1). A swing assembly is provided inside the support plate (9).

2. The inlet-type internal circulation anaerobic reactor according to claim 1, characterized in that, The swing assembly includes two rotating rods (18) and an atomizing nozzle (10). The two rotating rods (18) are rotatably mounted in a support plate (9). The bottom ends of the two support plates (9) are fixedly mounted with the same limiting frame (19). A worm gear (20) is rotatably mounted in the limiting frame (19). A fixing block (22) is fixedly mounted on a circular rod (21). Two connecting strips (25) are fixedly mounted on the circular rod (21). The atomizing nozzle (10) is fixedly connected to the bottom ends of the two connecting strips (25). Two fixing blocks (22) are fixedly mounted in the support plate (9). The same worm gear (23) is rotatably mounted between the two fixing blocks (22). The worm gear (23) meshes with the worm gear (20).

3. The inlet-type internal circulation anaerobic reactor according to claim 2, characterized in that, A water inlet pipe (8) is fixedly installed on one side of the reactor shell (1). A connecting pipe (12) is fixedly installed on the water inlet pipe (8). A connecting water pipe (16) is fixedly installed on one side of the connecting pipe (12). A folded pipe (26) is fixedly installed on one side of the connecting water pipe (16). The folded pipe (26) is fixedly connected to the top of the atomizing nozzle (10). A drain pipe (6) is fixedly installed on one side of the reactor shell (1).

4. The inlet-type internal circulation anaerobic reactor according to claim 1, characterized in that, Multiple supporting triangular plates (2) are fixedly installed on the outside of the reactor shell (1). The bottom of the multiple supporting triangular plates (2) is fixedly installed with the same fixed base (3). The reactor shell (1) is provided with connection holes that match the water inlet pipe (8) and the connecting water pipe (16). The reactor shell (1) is provided with fixing holes that match the drain pipe (6).

5. The inlet-type internal circulation anaerobic reactor according to claim 2, characterized in that, A motor (17) is fixedly installed inside the support plate (9). The output end of the motor (17) is fixedly connected to one of the rotating rods (18). A motor (24) is fixedly installed on one of the fixed blocks (22). The output end of the motor (24) is fixedly connected to the worm gear (23).

6. The inlet-type internal circulation anaerobic reactor according to claim 2, characterized in that, The support plate (9) has a swing groove that matches the limiting frame (19). A fixed circular groove that matches the motor (17) is fixedly opened on one side of the inner wall of the swing groove. A rotating circular hole that matches the circular rod (21) is opened on the limiting frame (19).

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