Anaerobic ammonia oxidation reactor denitrification device

Abstract

The utility model relates to the technical field of anaerobic ammonia oxidation reactor denitrification devices, and discloses an anaerobic ammonia oxidation reactor denitrification device which comprises a workbench and a reactor box, a stirring assembly is arranged in the reactor box, and the stirring assembly comprises a motor, a driven bevel gear, an inner gear ring and a placing frame. After wastewater containing ammonia nitrogen and nitrite nitrogen flows into a reactor box, a worker starts a motor to drive a driving bevel gear to rotate, then a driven bevel gear is driven to rotate, a rotating gear circumferentially rotates in an inner gear ring, meanwhile, the worker starts a driving piece, the driving piece enables a stirring block and a stirring blade to rotate, and the stirring block and the stirring blade rotate; ammonia nitrogen and nitrite nitrogen wastewater in the reactor box are mixed and stirred, so that the ammonia nitrogen and the nitrite nitrogen can be distributed more uniformly in the reactor box, anaerobic ammonium oxidation bacteria can be in full contact with reactants, the reaction efficiency is further improved, and sludge precipitation can be prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of nitrogen removal devices for anaerobic ammonia oxidation reactors, and particularly to a nitrogen removal device for anaerobic ammonia oxidation reactors. Background Technology

[0002] With accelerated industrialization and population growth, water pollution has become increasingly serious, with nitrogen pollution being a significant aspect. Traditional nitrogen removal methods, such as nitrification-denitrification processes, suffer from high energy consumption and large sludge production. Anaerobic ammonia oxidation (AAO), as a novel biological nitrogen removal process, has attracted widespread attention due to its advantages of high efficiency, low energy consumption, and low sludge production. However, current AAO reactors still face some challenges in practical applications, such as uneven flow patterns and poor mixing. These issues can affect the growth and metabolism of anaerobic ammonia oxidizing bacteria, thereby reducing nitrogen removal efficiency.

[0003] The applicant discovered through a search that a Chinese patent discloses "A Novel Anaerobic Ammonia Oxidation Reactor Denitrification Device" with publication (announcement) number "CN217947779U". This patent mainly uses a water distribution plate located at the upper port of a water distribution tray, which is connected to a primary inlet pipe. When nitrogen-containing wastewater enters the water distribution tray, a rotary motor can be started to drive the water distribution plate to rotate. Since the upper surface of the water distribution plate is evenly provided with water distribution holes, nitrogen-containing wastewater can be continuously sprayed into the anaerobic ammonia oxidation reactor from the water distribution holes. However, this patent cannot fully mix and stir the ammonia nitrogen and nitrite nitrogen wastewater inside the reactor, and it is difficult to prevent sludge from settling inside the reactor. Therefore, in actual use, the ammonia nitrogen and nitrite nitrogen wastewater may be unevenly distributed inside the reactor, and the bottom drain outlet of the reactor may also be blocked. Therefore, we propose an anaerobic ammonia oxidation reactor denitrification device. Utility Model Content

[0004] The purpose of this invention is to provide a nitrogen removal device for an anaerobic ammonia oxidation reactor, which solves the problems mentioned in the background art, such as the inability to fully mix and stir the ammonia nitrogen and nitrite nitrogen wastewater inside the reactor and the difficulty in preventing sludge from settling inside the reactor. In actual use, the ammonia nitrogen and nitrite nitrogen wastewater may be unevenly distributed inside the reactor, and the bottom drain outlet of the reactor may also be blocked.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anaerobic ammonia oxidation reactor denitrification device, comprising a workbench and a reactor box, wherein a stirring assembly is provided inside the reactor box, the stirring assembly comprising a motor, a driven bevel gear, an internal gear ring, and a placement frame, the motor being connected to a driving bevel gear via a rotating rod, the driven bevel gear being connected to a rotating gear via a connecting rod, the rotating gear being connected to a driving component via a connecting disc, the driving component being connected to a rotating disc and a stirring block via a connecting column, and the connecting column being connected to a stirring blade via the rotating block.

[0006] As a preferred embodiment, the motor is fixedly installed at the bottom of the workbench, one end of the rotating rod is fixedly connected to the output shaft of the motor, the other end of the rotating rod is fixedly connected to the side of the driving bevel gear, the driving bevel gear meshes with the driven bevel gear, the lower end of the connecting rod is fixedly connected to the top of the driven bevel gear, the outer wall of the connecting rod is rotatably connected to the inner wall of the workbench, and the outer wall of the connecting rod is rotatably connected to the inner bottom wall of the reactor box.

[0007] As a preferred embodiment, the upper end of the connecting rod is fixedly connected to the bottom of the rotating gear, the rotating gear is meshed with the internal gear ring, the internal gear ring is fixedly installed on the inner bottom wall of the reactor box, the connecting plate is fixedly installed on the top of the rotating gear, and the placement frame is fixedly installed on the inner bottom wall of the reactor box.

[0008] As a preferred embodiment, the driving component is fixedly installed on the top of the connecting plate, the lower end of the connecting column is fixedly connected to the output shaft of the driving component, the inner wall of the rotating plate is fixedly connected to the bottom outer wall of the connecting column, the bottom two ends of the stirring block are fixedly connected to the outer wall of the rotating plate, the inner wall of the rotating block is fixedly connected to the middle outer wall of the connecting column, and the stirring blade is fixedly installed on the outer wall of the rotating block.

[0009] As a preferred embodiment, a water distribution assembly is provided on the top of the workbench. The water distribution assembly includes an ammonia nitrogen tank, a nitrite nitrogen tank, and a connecting pipe. The ammonia nitrogen tank is fixedly installed on the front left side of the workbench, and the nitrite nitrogen tank is fixedly installed on the rear left side of the workbench. One end of the connecting pipe is fixedly connected to the inner wall of the ammonia nitrogen tank, and the other end of the connecting pipe is fixedly connected to the inner wall of the nitrite nitrogen tank.

[0010] As a preferred embodiment, an input pipe is fixedly connected to the inner wall of the connecting pipe, and a water pump is fixedly connected to the end of the input pipe away from the connecting pipe. The water pump is fixedly installed on the top of the workbench, and an output pipe is fixedly connected to the output end of the water pump. A branch pipe is fixedly connected to the end of the output pipe away from the water pump. Multiple sets of branch pipes distributed at equal intervals are fixedly connected to the outer wall of the branch pipe, and multiple sets of nozzles distributed at equal intervals are fixedly connected to the bottom of the branch pipe.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. With the set stirring components, when wastewater containing ammonia nitrogen and nitrite nitrogen flows into the reactor tank, the operator can start the motor to drive the active bevel gear to rotate, which in turn drives the driven bevel gear to rotate. The rotating gear rotates in a circle inside the internal gear ring. At the same time, the operator starts the drive unit, which makes the stirring block and stirring blades rotate, so as to fully mix and stir the ammonia nitrogen and nitrite nitrogen wastewater in the reactor tank. This can make the distribution of ammonia nitrogen and nitrite nitrogen in the reactor tank more uniform, allowing anaerobic ammonia oxidizing bacteria to come into more full contact with the reactants, thereby improving the reaction efficiency and preventing sludge sedimentation.

[0013] 2. With the water distribution components in place, the staff can start the water pump. The water pump will then start working and extract the wastewater from the ammonia nitrogen tank and the nitrite nitrogen tank. The wastewater will then be distributed through the diversion pipe and transported to each branch pipe. Finally, the wastewater will be sprayed out from the nozzle and fall into the reactor tank. This ensures that the wastewater is evenly distributed in all areas of the reactor tank. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the reactor box of this utility model;

[0016] Figure 3 This is a schematic diagram of a portion of the stirring assembly of this utility model;

[0017] Figure 4 This is a partial structural diagram of the stirring assembly of this utility model;

[0018] Figure 5 This is a schematic diagram of the water distribution component of this utility model.

[0019] In the diagram: 1. Workbench; 2. Stirring assembly; 201. Motor; 202. Rotating rod; 203. Driving bevel gear; 204. Driven bevel gear; 205. Connecting rod; 206. Rotating gear; 207. Internal gear ring; 208. Connecting disc; 209. Placement frame; 210. Driving component; 211. Connecting column; 212. Rotating disc; 213. Stirring block; 214. Rotating block; 215. Stirring blade; 3. Water distribution assembly; 301. Ammonia nitrogen tank; 302. Nitrite nitrogen tank; 303. Connecting pipe; 304. Input pipe; 305. Water pump; 306. Output pipe; 307. Diversion pipe; 308. Branch pipe; 309. Nozzle; 4. Reactor box. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] Please see the appendix Figure 1 - Appendix Figure 4 An anaerobic ammonia oxidation reactor for nitrogen removal includes a workbench 1 and a reactor box 4. A stirring assembly 2 is installed inside the reactor box 4. The stirring assembly 2 includes a motor 201, a driven bevel gear 204, an internal gear ring 207, and a placement frame 209. The motor 201 is connected to a driving bevel gear 203 via a rotating rod 202. The driven bevel gear 204 is connected to a rotating gear 206 via a connecting rod 205. The rotating gear 206 is connected to a driving component 210 via a connecting plate 208. The driving component 210 is connected to a rotating disk 212 and a stirring block 213 via a connecting column 211. The connecting column 211 is connected to a stirring blade 215 via a rotating block 214. The motor 201 is fixedly installed at the bottom of the workbench 1. One end of the rotating rod 202 is fixedly connected to the output shaft of the motor 201, and the other end is fixedly connected to the side of the driving bevel gear 203. The driving bevel gear 203 meshes with the driven bevel gear 204. The lower end of the connecting rod 205 is fixedly connected to... At the top of the driven bevel gear 204, the outer wall of the connecting rod 205 is rotatably connected to the inner wall of the worktable 1, and the outer wall of the connecting rod 205 is rotatably connected to the inner bottom wall of the reactor box 4. The upper end of the connecting rod 205 is fixedly connected to the bottom of the rotating gear 206. The rotating gear 206 meshes with the internal gear ring 207, which is fixedly installed on the inner bottom wall of the reactor box 4. The connecting plate 208 is fixedly installed on the top of the rotating gear 206, and the placement frame 209 is fixedly installed on the inner bottom wall of the reactor box 4. The driving component 210 is fixedly installed on the top of the connecting plate 208. The lower end of the connecting column 211 is fixedly connected to the output shaft of the driving component 210. The inner wall of the rotating plate 212 is fixedly connected to the bottom outer wall of the connecting column 211. The bottom two ends of the stirring block 213 are fixedly connected to the outer wall of the rotating plate 212. The inner wall of the rotating block 214 is fixedly connected to the middle outer wall of the connecting column 211. The stirring blade 215 is fixedly installed on the outer wall of the rotating block 214.

[0022] A connecting plate is fixedly connected to the bottom of the motor 201, and the connecting plate is fixedly connected to the bottom of the worktable 1. The bottom of the driven bevel gear 204 fits against the top of the connecting plate. The top of the placement frame 209 is provided with a track groove adapted to the drive component 210 to perform circular motion.

[0023] Specifically, through the set stirring component 2, when wastewater containing ammonia nitrogen and nitrite nitrogen flows into the reactor tank 4, the operator can start the motor 201 to drive the active bevel gear 203 to rotate, thereby driving the driven bevel gear 204 to rotate, while the rotating gear 206 rotates circumferentially inside the internal gear ring 207. At the same time, the operator starts the drive component 210, which makes the stirring block 213 and stirring plate 215 rotate, so as to fully mix and stir the ammonia nitrogen and nitrite nitrogen wastewater in the reactor tank 4. This can make the distribution of ammonia nitrogen and nitrite nitrogen in the reactor tank 4 more uniform, allowing anaerobic ammonia oxidizing bacteria to come into more full contact with the reactants, thereby improving the reaction efficiency. At the same time, it can also prevent sludge from settling at the bottom of the reactor tank 4. Example 2

[0024] Please see the appendix Figure 1 and appendix Figure 5 Furthermore, based on Embodiment 1, a water distribution assembly 3 is further provided on the top of the workbench 1. The water distribution assembly 3 includes an ammonia nitrogen tank 301, a nitrite nitrogen tank 302, and a connecting pipe 303. The ammonia nitrogen tank 301 is fixedly installed at the front left side of the top of the workbench 1, and the nitrite nitrogen tank 302 is fixedly installed at the rear left side of the top of the workbench 1. One end of the connecting pipe 303 is fixedly connected to the inner wall of the ammonia nitrogen tank 301, and the other end of the connecting pipe 303 is fixedly connected to the inner wall of the nitrite nitrogen tank 302. An input pipe 304 is fixedly connected to the inner wall of the middle section. A water pump 305 is fixedly connected to the end of the input pipe 304 away from the connecting pipe 303. The water pump 305 is fixedly installed on the top of the workbench 1. An output pipe 306 is fixedly connected to the output end of the water pump 305. A branch pipe 307 is fixedly connected to the end of the output pipe 306 away from the water pump 305. Multiple sets of branch pipes 308 distributed at equal intervals are fixedly connected to the outer wall of the branch pipe 307. Multiple sets of nozzles 309 distributed at equal intervals are fixedly connected to the bottom of the branch pipes 308.

[0025] Both ends of the branch pipe 308 are fixedly connected to a set of fixing blocks, which are fixedly connected to the inner wall of the reactor box 4. The branch pipe 308 and the nozzle 309 are fixed in the upper space inside the reactor box 4 through the fixing blocks. When the stirring assembly 2 is stirring inside the reactor box 4, the stirring block 213 and the stirring blade 215 will not touch the nozzle 309, and the nozzle 309 is located above the two.

[0026] Specifically, through the water distribution component 3, the staff can start the water pump 305. At this time, the water pump 305 starts to work, drawing out the wastewater from the ammonia nitrogen tank 301 and the nitrite nitrogen tank 302. Then the wastewater is diverted through the diversion pipe 307 and transported to each branch pipe 308. Finally, the wastewater is sprayed out from the nozzle 309 and falls into the reactor tank 4. This can ensure that the wastewater can be evenly distributed in each area of ​​the reactor tank 4.

[0027] Working principle of this utility model: This utility model is a denitrification device for an anaerobic ammonia oxidation reactor. First, the operator starts the water pump 305. The water pump 305 starts running and pumps the wastewater from the ammonia nitrogen tank 301 and the nitrite nitrogen tank 302 through the connecting pipe 303. Then, the wastewater is transported through the output pipe 306 to the diversion pipe 307, the branch pipe 308, and the nozzle 309. Finally, the wastewater is sprayed out from the nozzle 309 and falls into the reactor tank 4. Next, the operator starts the motor 201. The motor 201 drives the rotating rod 202 to rotate, and the rotating rod 202 in turn drives the active bevel gear 203 to rotate. The rotation of 3 causes the driven bevel gear 204 to start rotating. After the driven bevel gear 204 rotates, it drives the connecting rod 205 to rotate. The rotation of the connecting rod 205 causes the rotating gear 206 to perform circular motion on the inner wall of the internal gear ring 207. At the same time, the operator starts the drive component 210, which drives the connecting column 211 to rotate. As the connecting column 211 rotates, the rotating disk 212 and the stirring block 213 will also rotate. The rotating block 214 and the stirring blade 215 also start to rotate, which fully mixes and stirs the wastewater inside the reactor box 4. After the stirring is completed, nitrogen gas is discharged from the exhaust pipe set at the top of the reactor box 4.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anaerobic ammonia oxidation reactor denitrification device, comprising a workbench (1) and a reactor box (4), characterized in that: The inside of the reactor box (4) is provided with a stirring assembly (2), the stirring assembly (2) comprises a motor (201), a driven bevel gear (204), an inner gear ring (207) and a placing frame (209), the motor (201) is connected with a driving bevel gear (203) through a rotating rod (202), the driven bevel gear (204) is connected with a rotating gear (206) through a connecting rod (205), the rotating gear (206) is connected with a driving piece (210) through a connecting disc (208), the driving piece (210) is connected with a rotating disc (212) and a stirring block (213) through a connecting column (211), the connecting column (211) is connected with a stirring piece (215) through a rotating block (214).

2. The denitrification device of claim 1, wherein: The motor (201) is fixedly installed at the bottom of the workbench (1), one end of the rotating rod (202) is fixedly connected to the output shaft of the motor (201), the other end of the rotating rod (202) is fixedly connected to the side of the driving bevel gear (203), the driving bevel gear (203) is meshed and connected with the driven bevel gear (204), the lower end of the connecting rod (205) is fixedly connected to the top of the driven bevel gear (204), the outer wall of the connecting rod (205) is rotatably connected with the inner wall of the workbench (1), and the outer wall of the connecting rod (205) is rotatably connected with the inner bottom wall of the reactor box (4).

3. The nitrogen removal device by anammox reactor according to claim 2, characterized in that: The upper end of the connecting rod (205) is fixedly connected with the bottom of the rotating gear (206), the rotating gear (206) is meshed and connected with the inner gear ring (207), the inner gear ring (207) is fixedly installed on the inner bottom wall of the reactor box (4), the connecting disc (208) is fixedly installed on the top of the rotating gear (206), and the placing frame (209) is fixedly installed on the inner bottom wall of the reactor box (4).

4. The denitrification device of claim 3, wherein: The driving piece (210) is fixedly installed on the top of the connecting disc (208), the lower end of the connecting column (211) is fixedly connected to the output shaft of the driving piece (210), the inner wall of the rotating disc (212) is fixedly connected with the bottom outer wall of the connecting column (211), the bottom ends of the stirring block (213) are fixedly connected to the outer wall of the rotating disc (212), the inner wall of the rotating block (214) is fixedly connected with the middle outer wall of the connecting column (211), and the stirring piece (215) is fixedly installed on the outer wall of the rotating block (214).

5. The nitrogen removal device of claim 4, wherein: The top of the workbench (1) is provided with a water distribution assembly (3), the water distribution assembly (3) comprises an ammonia nitrogen tank (301), a nitrite nitrogen tank (302) and a connecting pipe (303), the ammonia nitrogen tank (301) is fixedly installed at the left top front end of the workbench (1), the nitrite nitrogen tank (302) is fixedly installed at the left top rear end of the workbench (1), one end of the connecting pipe (303) is fixedly connected to the inner wall of the ammonia nitrogen tank (301), and the other end of the connecting pipe (303) is fixedly connected to the inner wall of the nitrite nitrogen tank (302).

6. The nitrogen removal device of an ANAMMOX reactor according to claim 5, characterized by: The middle inner wall of the connecting pipe (303) is fixedly connected with an input pipe (304), one end of the input pipe (304) away from the connecting pipe (303) is fixedly connected with a water pump (305), the water pump (305) is fixedly installed on the top of the workbench (1), the output end of the water pump (305) is fixedly connected with an output pipe (306), one end of the output pipe (306) away from the water pump (305) is fixedly connected with a shunt pipe (307), a plurality of groups of branch pipes (308) which are equidistantly distributed are fixedly connected on the outer wall of the shunt pipe (307), a plurality of groups of nozzles (309) which are equidistantly distributed are fixedly connected on the bottom of the branch pipe (308).

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