A denitration reactor

By using a combination of large and small gears and employing a liquid pump and aeration pipes, the problem of uneven mixing in existing denitrification reactors has been solved, resulting in more efficient microbial reactions and denitrification.

CN224350494UActive Publication Date: 2026-06-12SHANGHAI BI ZONE ENVIRONMENTAL EQUIP & ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BI ZONE ENVIRONMENTAL EQUIP & ENG
Filing Date
2025-07-07
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing denitrification reactors have simple stirring structures, which makes it difficult to mix the mixture evenly and affects the efficiency of microbial reaction.

Method used

The design employs a combination of large gears, small gears, and a No. 1 plate, allowing the stirring blades to revolve and rotate within the device. Combined with the use of a liquid pump and aeration pipes, this achieves thorough stirring and oxidation reactions in both anoxic and aerobic tanks.

Benefits of technology

It improves the mixing effect of the mixture in the device, promotes microbial reaction, and enhances denitrification efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of nitrogen removal reactors, belong to nitrogen removal reactor field, it includes: oxygen deficiency jar and aerobic jar, and oxygen deficiency jar and aerobic jar top are respectively connected with No. 1 cover and No. 2 cover by bolt thread, and No. 1 cover top is fixedly connected with No. 1 board, No. 1 board inboard is rotatably connected with No. 1 roll, and No. 1 board top inner wall is fixedly connected with pinion, and pinion outboard is engaged with multiple gear wheels, and No. 1 roll bottom is fixedly connected with No. 2 board, No. 2 board inboard is rotatably connected with multiple No. 2 rolls, and multiple No. 2 roll outboard are rotatably connected inboard in corresponding gear wheel. The utility model structure design is reasonable, by the cooperation between gear wheel, pinion and No. 1 board, so that stirring blade can also rotate while revolution in device inboard, this makes that liquid in device interior can be stirred more fully, to facilitate microorganism to occur reaction, further improve the working efficiency of device.
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Description

Technical Field

[0001] This utility model relates to the field of denitrification reactors, and more particularly to a pre-type denitrification reactor. Background Technology

[0002] A novel denitrification reactor is a step-feed sequencing batch reactor. This process achieves advanced and enhanced denitrification through continuous aerobic and anoxic three-stage, three-step feeding, combined with real-time control.

[0003] In existing denitrification reactors, the device uses a stirring mechanism to agitate the solution inside the device. However, some stirring structures are relatively simple, only rotating in one direction. This makes it difficult to mix the mixture inside the device evenly, thus affecting the reaction of microorganisms inside the device and further affecting the working efficiency of the device. Therefore, we propose an in-line denitrification reactor to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to provide a pre-type denitrification reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A denitrification reactor includes an anoxic tank and an aerobic tank. The tops of the anoxic tank and the aerobic tank are respectively connected by bolts and threads to a No. 1 cover and a No. 2 cover. A No. 1 plate is fixedly connected to the top of the No. 1 cover. A No. 1 roller is rotatably connected to the inner side of the No. 1 plate. A small gear is fixedly connected to the inner wall of the top of the No. 1 plate, and multiple large gears mesh with the outer side of the small gear. A No. 2 plate is fixedly connected to the bottom of the No. 1 roller. Multiple No. 2 rollers are rotatably connected to the inner side of the No. 2 plate, and the outer sides of each of the multiple No. 2 rollers are rotatably connected to the inner side of a corresponding large gear. A stirring blade is fixedly connected to the outer side of the No. 2 rollers. A liquid pump is installed outside the anoxic tank. The output and input ends of the liquid pump are fixedly connected to a No. 1 pipe and a No. 2 pipe, respectively. The other end of the No. 1 pipe is fixedly connected to the outside of the aerobic tank, and the other end of the No. 2 pipe is fixedly connected to the outside of the anoxic tank.

[0007] Preferably, a protective shell is fixedly connected to the top of the No. 1 plate, a rotating roller is rotatably connected to the inner side of the protective shell, a worm is fixedly connected to the outer side of the rotating roller, a worm wheel meshes with the outer side of the worm, and the inner side of the worm wheel is fixedly connected to the outer side of the No. 1 roller.

[0008] Preferably, multiple L-shaped plates are fixedly connected to the outer side of the second plate, and a guide groove adapted to the outer side of the first plate is provided on the outer side of the L-shaped plate, and the outer side of the L-shaped plate is slidably connected to the inner side of the guide groove.

[0009] Preferably, a feeder is provided on the outside of the anoxic tank, and one end of the feeder is fixedly connected to a conveying pipe, while the other end of the conveying pipe is fixedly connected to the outside of the anoxic tank.

[0010] Preferably, a motor is fixedly connected to the inner wall of one side of the protective shell, and the output end of the motor is fixedly connected to one end of the rotating roller.

[0011] Preferably, a drain pipe is fixedly connected to the outside of the aerobic tank, and a control valve is provided on the outside of the drain pipe.

[0012] Preferably, an aeration pipe is fixedly connected to the outside of the aerobic tank.

[0013] In this invention, a pre-feed denitrification reactor is described. Wastewater requiring denitrification enters the anoxic tank through the feed pipe of the feeder. Due to the low oxygen levels inside the anoxic tank, denitrification can occur. The user can then start the pump to transfer the wastewater from the anoxic tank to the aerobic tank. During the reaction in the anoxic tank, the user can start the motor. Starting the motor causes the rotating roller to rotate, which in turn causes the worm to rotate synchronously. Since the worm and worm wheel are meshed, the worm wheel also rotates when the worm rotates. Then, the first roller rotates, causing the second plate to rotate. When the second plate rotates, both the second roller and the large gear rotate. Because the large gear meshes with the small gear, it can also rotate on its own when driven, thus allowing the second roller to drive the stirring blades.

[0014] In this invention, a pre-type denitrification reactor allows for more thorough stirring inside the anoxic tank. The user then uses a pump to transport the wastewater from the anoxic tank to the aerobic tank. An aeration pipe continuously increases oxygen levels inside the aerobic tank. Inside the aerobic tank, microorganisms oxidize ammonia nitrogen into nitrates, and the remaining organic matter is further decomposed. The user can then open a control valve to drain the liquid from the aerobic tank through a drain pipe. An internal backflow pump can be installed on the drain pipe to pump the mixture containing a large amount of nitrates from the aerobic tank back to the anoxic tank, thus aiding in denitrification. The user can then loosen the bolts in the device and remove the first and second covers for convenient cleaning of the anoxic and aerobic tanks.

[0015] This utility model has a reasonable structural design. Through the cooperation between the large gear, the small gear and the No. 1 plate, the stirring blade can rotate on its own axis while revolving around the center of the device. This allows the liquid inside the device to be stirred more thoroughly, which facilitates the reaction of microorganisms and further improves the working efficiency of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a pre-type denitrification reactor proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a pre-type denitrification reactor proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the No. 1 cover structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the motor structure proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure proposed in this utility model.

[0021] In the diagram: 1. Anoxic tank; 2. Aerobic tank; 3. No. 1 cover; 4. No. 2 cover; 5. No. 1 plate; 6. No. 1 roller; 7. No. 2 plate; 8. No. 2 roller; 9. Large gear; 10. Small gear; 11. Motor; 12. Worm gear; 13. Worm wheel; 14. Liquid pump; 15. Aeration pipe; 16. Feeder. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1-5 A type of denitrification reactor includes: an anoxic tank 1 and an aerobic tank 2. The tops of the anoxic tank 1 and the aerobic tank 2 are respectively connected by bolts and threads to a No. 1 cover 3 and a No. 2 cover 4. The top of the No. 1 cover 3 is fixedly connected to a No. 1 plate 5. The inner side of the No. 1 plate 5 is rotatably connected to a No. 1 roller 6. The inner wall of the top of the No. 1 plate 5 is fixedly connected to a small gear 10. The outer side of the small gear 10 is meshed with multiple large gears 9. The bottom of the No. 1 roller 6 is fixedly connected to a No. 2 plate 7. The inner side of the No. 2 plate 7 is rotatably connected to multiple No. 2 rollers 8. The outer sides of the multiple No. 2 rollers 8 are rotatably connected to the inner side of the corresponding large gears 9. The outer side of the No. 2 rollers 8 is fixedly connected to a stirring blade. A liquid pump 14 is provided on the outside of the anoxic tank 1. The output end and input end of the liquid pump 14 are fixedly connected to a No. 1 pipe and a No. 2 pipe, respectively. The other end of the No. 1 pipe is fixedly connected to the outside of the aerobic tank 2, and the other end of the No. 2 pipe is fixedly connected to the outside of the anoxic tank 1.

[0024] In this embodiment, a protective shell is fixedly connected to the top of the first plate 5, a rotating roller is rotatably connected to the inner side of the protective shell, a worm gear 12 is fixedly connected to the outer side of the rotating roller, and a worm wheel 13 meshes with the outer side of the worm gear 12. The inner side of the worm wheel 13 is fixedly connected to the outer side of the first roller 6. Multiple L-shaped plates are fixedly connected to the outer side of the second plate 7, and a guide groove adapted to the outer side of the L-shaped plate is opened on the outer side of the first plate 5. The outer side of the L-shaped plate is slidably connected to the inner side of the guide groove, which allows the first plate 5 to rotate stably.

[0025] In this embodiment, a feeder 16 is provided on the outside of the anoxic tank 1, and one end of the feeder 16 is fixedly connected to a conveying pipe. The other end of the conveying pipe is fixedly connected to the outside of the anoxic tank 1. A motor 11 is fixedly connected to the inner wall of one side of the protective shell. The output end of the motor 11 is fixedly connected to one end of the rotating roller. A drain pipe is fixedly connected to the outside of the aerobic tank 2, and a control valve is provided on the outside of the drain pipe. An aeration pipe 15 is fixedly connected to the outside of the aerobic tank 2, which can provide oxygen to the aerobic tank 2.

[0026] In this embodiment, during use, the wastewater requiring denitrification is fed into the anoxic tank 1 through the feed pipe of the feeder 16. Since there is less oxygen inside the anoxic tank 1, denitrification can occur. The user can then start the pump 14 to pump the wastewater from the anoxic tank 1 to the aerobic tank 2. During the reaction in the anoxic tank 1, the user can start the motor 11. After starting the motor 11, the rotating roller begins to rotate, causing the worm gear 12 to rotate synchronously. Since the worm gear 12 and worm wheel 13 are meshed, when the worm gear 12 rotates, the worm wheel 13 also begins to rotate. Then, the first roller 6 begins to rotate, causing the second plate 7 to rotate. When the second plate 7 rotates, both the second roller 8 and the large gear 9 can rotate. Since the large gear 9 meshes with the small gear 10, the large gear 9... When driven, it can also rotate, which allows the second roller 8 to drive the stirring blades, making the inside of the anoxic tank 1 more thoroughly stirred. Then, the user continues to use the liquid pump 14 to transport the sewage inside the anoxic tank 1 to the inside of the aerobic tank 2. The aeration pipe 15 can continuously increase the oxygen inside the aerobic tank 2. Inside the aerobic tank 2, microorganisms can oxidize ammonia nitrogen into nitrate, and the remaining organic matter is further decomposed. Then, the user can open the control valve to discharge the liquid inside the aerobic tank 2 from the drain pipe. The user can also install an internal return pump on the drain pipe, which can pump the mixed liquid containing a large amount of nitrate inside the aerobic tank 2 back to the inside of the anoxic tank 1, thereby helping the denitrification reaction inside the anoxic tank 1. The user can loosen the bolts in the device and remove the first cover 3 and the second cover 4 to facilitate the subsequent cleaning of the inside of the anoxic tank 1 and the aerobic tank 2.

[0027] The present invention provides a detailed description of a pre-type denitrification reactor. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A pre-type denitrification reactor, characterized in that, include: An anoxic tank (1) and an aerobic tank (2) are provided, and the tops of the anoxic tank (1) and the aerobic tank (2) are respectively connected by bolts and threads to a No. 1 cover (3) and a No. 2 cover (4). A No. 1 plate (5) is fixedly connected to the top of the No. 1 cover (3). A No. 1 roller (6) is rotatably connected to the inner side of the No. 1 plate (5). A small gear (10) is fixedly connected to the inner wall of the top of the No. 1 plate (5). Multiple large gears (9) mesh with the outer side of the small gear (10). A No. 2 plate (7) is fixedly connected to the bottom of the No. 1 roller (6). Multiple rollers (8) are rotatably connected to the inner side of the second plate (7), and the outer sides of the multiple rollers (8) are rotatably connected to the inner side of the corresponding large gear (9). A stirring blade is fixedly connected to the outer side of the rollers (8), and a liquid pump (14) is provided on the outer side of the anoxic tank (1). The output end and input end of the liquid pump (14) are fixedly connected to the first pipe and the second pipe, respectively. The other end of the first pipe is fixedly connected to the outer side of the aerobic tank (2), and the other end of the second pipe is fixedly connected to the outer side of the anoxic tank (1).

2. The inlet-type denitrification reactor according to claim 1, characterized in that, The top of the first plate (5) is fixedly connected to a protective shell, and a rotating roller is rotatably connected to the inner side of the protective shell. A worm gear (12) is fixedly connected to the outer side of the rotating roller, and a worm wheel (13) meshes with the outer side of the worm gear (12). The inner side of the worm wheel (13) is fixedly connected to the outer side of the first roller (6).

3. The inlet-type denitrification reactor according to claim 1, characterized in that, Multiple L-shaped plates are fixedly connected to the outer side of the second plate (7), and a guide groove adapted to the outer side of the first plate (5) is provided on the outer side of the L-shaped plate. The outer side of the L-shaped plate is slidably connected to the inner side of the guide groove.

4. The inlet-type denitrification reactor according to claim 1, characterized in that, A feeder (16) is provided on the outside of the anoxic tank (1), and one end of the feeder (16) is fixedly connected to a conveying pipe, and the other end of the conveying pipe is fixedly connected to the outside of the anoxic tank (1).

5. A pre-type denitrification reactor according to claim 2, characterized in that, A motor (11) is fixedly connected to the inner wall of one side of the protective shell, and the output end of the motor (11) is fixedly connected to one end of the rotating roller.

6. The inlet-type denitrification reactor according to claim 1, characterized in that, The aerobic tank (2) is fixedly connected to a drain pipe on the outside, and a control valve is provided on the outside of the drain pipe.

7. A pre-type denitrification reactor according to claim 1, characterized in that, An aeration pipe (15) is fixedly connected to the outside of the aerobic tank (2).