Biochemical treatment tank for ammonia distillation wastewater

Abstract

The invention discloses a biochemical treatment tank for ammonia distillation wastewater. The biochemical treatment tank comprises a tank body, a driving unit and a stirring part, the driving unit is arranged on one side of the pool body; the stirring part comprises a positioning frame, a transmission assembly, a plurality of first stirring blades and a plurality of second stirring blades which are arranged in the tank body in a sliding manner and are connected with the driving unit; the transmission assembly is arranged in the positioning frame; and each stirring blade is arranged in the tank and is connected with the corresponding end of the transmission assembly. The driving unit drives the positioning frame to reciprocate in the length direction of the tank body, the transmission assembly drives the stirring blades to stir water florae to improve the diffusion uniformity of the florae, the second stirring blades stir and convey the florae at the bottom of the tank to dead corners of the bottom of the tank uniformly, the distribution uniformity of the florae is further improved, and after the florae are diffused to a proper density, the florae are uniformly dispersed. The transmission assembly still drives each first stirring blade to stir at a low speed, and uniform contact between the flora and pollutants is maintained, so that the mixing efficiency between the flora and the wastewater is improved, and the wastewater degradation efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a biochemical treatment tank for ammonia-containing wastewater. Background Technology

[0002] The ammonia stripping wastewater biochemical treatment pond is a specialized device that uses biochemical methods to degrade pollutants in the wastewater generated during the ammonia stripping process.

[0003] Existing traditional ammonia-containing wastewater biochemical treatment ponds mostly use one or more agitators to perform localized mixing in the pond. This method has the problem of uneven mixing of wastewater and microbial communities in the pond. In some areas, the microbial communities cannot fully contact pollutants and oxygen, which inhibits their metabolic activity and affects the wastewater degradation efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned above by providing a biochemical treatment tank for ammonia-containing wastewater, which can improve the mixing efficiency between bacteria and wastewater and improve the wastewater degradation efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a biochemical treatment tank for ammonia-containing wastewater, comprising: a tank body, a drive unit and a stirring component; The drive unit is located on one side of the pool body; The stirring component includes a positioning frame slidably disposed in the pool body and connected to the drive unit, a transmission assembly, a plurality of first stirring blades and a plurality of second stirring blades; The drive unit is used to drive the positioning frame to reciprocate along the length of the pool body; The transmission assembly is disposed in the positioning frame; Each stirring blade is installed inside the tank and connected to the corresponding end of the transmission assembly. The transmission assembly is used to drive each stirring blade to rotate, thereby agitating the water and bacteria. Furthermore, each of the second stirring blades is evenly distributed at the bottom of the pool to agitate the water at the bottom of the pool.

[0006] Furthermore, the positioning frame consists of a fixed frame disposed on the drive unit and an adjusting frame slidably disposed on the fixed frame, and each of the second stirring blades is evenly distributed on the fixed frame and rotatably connected thereto; The transmission assembly includes a first transmission component, which includes a first power unit, a first transmission chain, and a plurality of first transmission rods disposed in the adjustment frame. Each of the first transmission rods is vertically distributed in the pool and rotatably mounted on the adjustment frame, and each of the first stirring blades is evenly distributed on the corresponding first transmission rod; The first transmission chain group is respectively connected to the first power unit and each of the first transmission rods, and the first power unit drives each of the first transmission rods to rotate through the first transmission chain group; The fixed frame is also equipped with an adjustment component connected to the adjustment frame, which is used to monitor the water level in the pool and drive the adjustment frame to move vertically.

[0007] Furthermore, a first rack is vertically arranged on the adjustment frame, and an indicator unit is also provided on the adjustment frame; The adjustment component includes a second power unit, a first gear, and a float. The second power unit is mounted on the fixed frame, and its moving end is connected to the first gear; The first gear meshes with the first rack and is used to drive the adjusting frame to move vertically; The float is vertically slidably mounted on the fixed frame and in contact with the water surface in the pool. It is equipped with a touch rod connected to the indicator unit, and the touch rod is also signal connected to the second power unit. The contact rod is connected to the corresponding position of the indicating unit and causes it to send a corresponding signal to the second power unit.

[0008] Furthermore, a second toothed rack is provided on one side of the pool body along its length direction; The transmission assembly further includes a second transmission component, which is composed of a second gear, a first connecting rod, a first transmission belt assembly, a second connecting rod, a third connecting rod, a bevel gear assembly, and a second transmission chain assembly, all of which are disposed in the fixed frame. The second gear meshes with the second rack; The first connecting rod is rotatably mounted in the fixed frame and slidably connected to the pool body, with its two ends respectively connected to the corresponding ends of the second gear and the first transmission belt assembly; Both the second link and the third link are rotatably mounted in the fixed frame; The second connecting rod is connected to the corresponding teeth of the first transmission belt assembly and the bevel gear assembly, respectively; The third link is connected to another tooth of the bevel gear set and the corresponding end of the second transmission chain set; The second drive chain assembly is connected to each of the second stirring blades; The second gear meshes with the second rack and drives each of the second stirring blades to rotate through the corresponding gears and transmission assembly.

[0009] Furthermore, the blades of each of the second stirring blades are arranged in an arc shape, and the arc-shaped arrangement of the blades of two adjacent second stirring blades is opposite to each other; The second transmission chain can drive two adjacent second stirring blades to rotate relative to each other; One end of the fixed frame is also provided with a cleaning pipe, which has multiple suction ports. Each suction port is located between two adjacent stirring blades and is used to extract sediment in the pool.

[0010] Furthermore, the pool body consists of a primary treatment pool and a secondary treatment pool, with a partition plate between the two treatment pools to prevent water flow. The partition plate is equipped with a one-way valve for guiding water from the primary treatment tank to the secondary treatment tank and preventing backflow.

[0011] The beneficial effects of this invention are reflected in: In this invention, the drive unit drives the positioning frame to move back and forth along the length of the pool, while the transmission component drives each stirring blade to agitate the aquatic bacteria, thereby achieving periodic reciprocating agitation of the water in the pool and improving the uniformity of bacterial diffusion. At the same time, each second stirring blade evenly agitates and transports the bacteria from the bottom of the pool to the dead corners of the pool, further improving the uniformity of bacterial distribution. After the bacteria have diffused to a suitable density, the transmission component continues to drive each first stirring blade to agitate at a low speed to maintain uniform contact between the bacteria and pollutants, thereby improving the mixing efficiency between the bacteria and wastewater, and thus improving the wastewater degradation efficiency. Attached Figure Description

[0012] Figure 1 This is a first front view of a biochemical treatment tank for ammonia-containing wastewater according to the present invention; Figure 2 for Figure 1 Enlarged view at point A in the middle; Figure 3 This is a cross-sectional view of a biochemical treatment tank for ammonia-containing wastewater according to the present invention. Figure 4 for Figure 2 Enlarged view at point B; Figure 5 for Figure 2 A magnified view at point C; Figure 6 This is a structural view of the stirring component.

[0013] In the picture: 1. Tank body; 11. Primary treatment tank; 12. Secondary treatment tank; 13. Partition plate; 14. One-way valve; 2. Drive unit; 3. Stirring component; 31. Positioning frame; 311. Fixing frame; 312. Adjusting frame; 32. Transmission assembly; 321. First transmission component; 3211. First transmission rod; 3212. First transmission chain assembly; 3213. First power unit; 322. Second transmission component; 3221. Second gear; 3222. 3223, First transmission belt assembly; 3224, Second connecting rod; 3225, Third connecting rod; 3226, Bevel gear assembly; 3227, Second transmission chain assembly; 33, First stirring blade; 34, Second stirring blade; 4, Adjusting component; 41, Second power unit; 42, First gear; 43, Float rod; 431, Contact rod; 5, First rack; 6, Indicating unit; 7, Second rack; 8, Cleaning pipe; 81, Suction port; 9, Idler gear assembly. Detailed Implementation

[0014] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0015] Please see Figure 1-6 The present invention discloses a biochemical treatment tank for ammonia-containing wastewater, comprising: a tank body 1, a drive unit 2 and a stirring component 3; The drive unit 2 is located on one side of the pool body 1; The stirring component 3 includes a positioning frame 31 that is slidably disposed in the tank body 1 and connected to the drive unit 2, a transmission assembly 32, a plurality of first stirring blades 33 and a plurality of second stirring blades 34; The drive unit 2 is used to drive the positioning frame 31 to move back and forth along the length of the pool body 1; The transmission assembly 32 is disposed in the positioning frame 31; Each stirring blade is installed inside the tank and connected to the corresponding end of the transmission assembly 32, which is used to drive each stirring blade to rotate to agitate the water and bacteria. Furthermore, each of the second stirring blades 34 is evenly distributed at the bottom of the pool to stir the water at the bottom of the pool.

[0016] In specific implementation, after the bacteria are put into the pool 1, the drive unit 2 drives the positioning frame 31 to move back and forth along the length of the pool 1. At this time, the transmission component 32 drives each stirring blade to rotate. Each stirring blade stirs the water and bacteria in the pool, promotes the dispersion of bacteria and makes them fully contact the water. At the same time, each second stirring blade 34 stirs the bacteria at the bottom of the pool towards the dead corner of the pool bottom, further improving the uniformity of the distribution of bacteria. Once the bacterial community reaches the predetermined distribution density in the pool, the transmission component 32 stops the rotation of each of the second stirring blades 34 to avoid disturbing the sediment generated by the bacterial community. At the same time, the drive unit 2 continues to drive the positioning frame 31 to move slowly, and the transmission component 32 drives each of the first stirring blades 33 to slowly stir in the water, so as to reduce the sedimentation of the bacterial community without affecting its metabolic work and maintain uniform contact between the bacterial community and pollutants.

[0017] In this invention, the drive unit 2 drives the positioning frame 31 to move back and forth along the length of the pool body 1. At the same time, the transmission component 32 drives each stirring blade to agitate the aquatic bacteria, thereby achieving periodic reciprocating agitation of the water in the pool and improving the uniformity of bacterial diffusion. Meanwhile, each second stirring blade 34 agitates and transports the bacteria from the bottom of the pool to the dead corners of the pool, further improving the uniformity of bacterial distribution. After the bacteria have diffused to a suitable density, the transmission component 32 continues to drive each first stirring blade 33 to agitate at a low speed to maintain uniform contact between the bacteria and pollutants, thereby improving the mixing efficiency between the bacteria and wastewater, and thus improving the wastewater degradation efficiency.

[0018] It should be noted that the drive unit 2 can be a linear module in the prior art, and the structure and function of the linear module are common knowledge to those skilled in the art, so it will not be described in detail here.

[0019] In one embodiment, the positioning frame 31 is composed of a fixed frame 311 disposed on the drive unit 2 and an adjusting frame 312 slidably disposed on the fixed frame 311, and each second stirring blade 34 is evenly distributed on the fixed frame 311 and rotatably connected thereto; The transmission assembly 32 includes a first transmission component 321, which includes a plurality of first transmission rods 3211 that are vertically distributed in the pool and rotatably mounted on the adjustment frame 312, and each first stirring blade 33 is evenly distributed on the corresponding first transmission rod 3211. The adjusting frame 312 is also provided with a first transmission chain group 3212 connected to each first transmission rod 3211; It also includes a first power unit 3213 disposed in the adjustment frame 312, the moving end of which is connected to the first transmission chain group 3212, and is used to drive each first transmission rod 3211 to rotate through the first transmission chain group 3212. The fixed frame 311 is also equipped with an adjustment component 4 connected to the adjustment frame 312, which is used to monitor the water level in the pool and drive the adjustment frame 312 to move vertically.

[0020] With this design, when it is necessary to agitate the water, the first power unit 3213 drives the first transmission chain group 3212 to work so that each first transmission rod 3211 rotates, thereby driving each first stirring blade 33 to rotate, so as to agitate the water. When the predetermined water level in the pool changes, the drive component stops working, the adjustment component 4 detects the actual water level depth and drives the adjustment frame 312 to move vertically up and down until each of the first stirring blades 33 moves to a suitable depth in the water body, thus improving applicability.

[0021] Preferably, the first power unit 3213 can be an electric motor as used in the prior art; It should be noted that the first transmission chain group 3212 includes first sprockets respectively disposed at the moving end of the first power unit 3213 and at the corresponding transmission connection of each first transmission rod 3211, and first chains meshing with each first sprocket. The working principle between each first sprocket and the first chain is common knowledge to those skilled in the art, so it will not be described in detail here.

[0022] In one embodiment, a first rack 5 is vertically arranged on the adjustment frame 312, and an indicator unit 6 connected to an external control unit (not shown in the figure) is also provided on the adjustment frame 312. The indicator unit 6 is composed of an ascending section, a holding section and a descending section from top to bottom. The adjustment component 4 includes a second power unit 41 mounted on the fixed frame 311 and connected to the control unit via a signal, and a first gear 42 that meshes with the first rack 5 is provided on its moving end; The second power unit 41 is used to receive the corresponding signal sent by the indicator unit 6, and drives the adjustment frame 312 to move vertically by meshing with the first gear 42 and the first rack 5. It also includes a float 43 that is slidably mounted on the fixed frame 311 and floats on the water surface in the pool, and has a touch rod 431 connected to the indicator unit 6. The touch rod 431 is also signal connected to the second power unit 41. The contact rod 431 is connected to the corresponding position of the indicator unit 6 and causes it to send a corresponding signal to the second power unit 41.

[0023] With this design, when the water level in the pool changes, the float 43 rises and falls synchronously with the water level. When the touch rod 431 is connected to the rising section of the indicator unit 6, the indicator unit 6 sends a signal to the second power unit 41 to drive the first gear 42 to rotate and mesh with the first rack 5, so that the adjusting frame 312 rises and each of the first stirring blades 33 rises together until the holding section of the indicator unit 6 is connected to the touch rod 431. At this time, the second power unit 41 stops working and prevents the adjusting frame 312 from rising and falling. When the contact rod 431 is connected to the descending section of the indicator unit 6, it sends a signal to the second power unit 41 and drives the gear to reverse. At this time, the adjusting rod descends until the holding section of the indicator unit 6 is connected to the contact rod 431 again.

[0024] Preferably, the indicating unit 6 can be a direct-acting limit switch as in the prior art.

[0025] In one embodiment, a second rack 7 is provided on one side of the pool body 1 along its length direction; The second transmission component 322 is composed of a second gear 3221, a first connecting rod 3222, a first transmission belt group 3223, a second connecting rod 3224, a third connecting rod 3225, a bevel gear group 3226, and a second transmission chain group 3227, all of which are installed in the fixed frame 311. The second gear 3221 meshes with the second rack 7; The first connecting rod 3222 is a telescopic rod, its telescopic end is connected to the second gear 3221, its fixed end is rotatably set in the fixed frame 311 and slidably connected to the pool body 1, and its fixed end is connected to the corresponding end of the first transmission belt group 3223. The second connecting rod 3224 is rotatably mounted at the bottom end of the fixed frame 311, and its two ends are respectively connected to the corresponding ends of the first transmission belt group 3223 and the bevel gear group 3226; The third link 3225 is rotatably mounted in the fixed frame 311 and is respectively connected to the other tooth of the bevel gear set 3226 and the corresponding end of the second transmission chain set 3227; The second drive chain assembly 3227 is connected to each of the second stirring blades 34; The second gear 3221 meshes with the second rack 7 and drives the second stirring blades 34 to rotate through the corresponding gears and transmission assembly.

[0026] With this design, when the drive unit 2 moves the fixed frame 311, the second gear 3221 moves along with it and meshes with the second rack 7. At this time, the first connecting rod 3222 rotates and drives the second connecting rod 3224 to rotate through the first transmission belt group 3223, thereby driving the bevel gear group 3226 to work, so as to drive the second transmission chain group 3227 to work through the third connecting rod 3225, and then drive each second stirring blade 34 to rotate. When the second stirring blades 34 do not need to rotate actively, the first connecting rod 3222 retracts to separate the second gear 3221 from the second rack 7.

[0027] It should be noted that the first transmission belt assembly 3223 includes two first synchronous pulleys respectively disposed on the first connecting rod 3222 and the second connecting rod 3224, and a first synchronous belt disposed on the two first synchronous pulleys.

[0028] It should be noted that the bevel gear set 3226 includes two meshing bevel gears disposed on the second connecting rod 3224 and the third connecting rod 3225.

[0029] It should be noted that the functions of the first transmission belt assembly 3223 and the bevel gear assembly 3226 are common knowledge to those skilled in the art, and therefore will not be elaborated upon here.

[0030] In one embodiment, the blades of each second stirring blade 34 are arranged in an arc shape, and the arc directions of the blades of two adjacent second stirring blades 34 are opposite to each other. Each second stirring blade 34 is used to stir the sediment. The second drive chain assembly 3227 can drive two adjacent second stirring blades 34 to rotate relative to each other, so as to push the sediment between the two adjacent second stirring blades 34; The fixed frame 311 is also equipped with a cleaning pipe 8 connected to an external extraction component (not shown in the figure), which has multiple suction ports 81. Each suction port 81 is located between two adjacent stirring blades. The extraction component extracts sediment from the pool through the cleaning pipe 8.

[0031] With this design, when it is necessary to clean the sediment, the drive unit 2 drives the fixed frame 311 to move, and each second stirring blade 34 rotates in the corresponding direction under the drive of the second transmission chain group 3227. At this time, each second stirring blade 34 moves the sediment at the bottom of the pool to the space between two adjacent second stirring blades 34 and corresponds to the corresponding suction port 81. At the same time, the extraction component extracts the sediment through the cleaning pipe 8, reducing sediment accumulation.

[0032] It should be noted that the fixed frame 311 has multiple fourth links that are rotatably connected to it; The second transmission chain group 3227 includes multiple second sprockets respectively disposed at the transmission connection points of the third transmission rod, each fourth connecting rod and the corresponding second stirring blade 34, a first chain meshing with each second sprocket, and multiple idler wheel groups 9; Each idler wheel group 9 is respectively set between the second stirring blade 34, which is not connected to the second sprocket, and the fourth connecting rod. When the fourth connecting rod rotates, it adjusts the rotation direction of the corresponding second stirring blade 34 through the idler wheel group 9. The second sprocket rotates to drive each second stirring blade 34 to rotate, and the corresponding second stirring blade 34 rotates relative to the adjacent second stirring blade 34 under the control of the idler wheel group 9. The structure and function of each idler wheel group 9 are common knowledge to those skilled in the art, so they will not be described in detail here.

[0033] In one embodiment, the pool body 1 is composed of a primary treatment pool 11 and a secondary treatment pool 12, and a partition plate 13 is provided between the two treatment pools to prevent water flow. The drive unit 2 is used to move the positioning frame 31 within the primary treatment pool 11; The partition plate 13 is equipped with a one-way valve 14 for guiding water from the primary treatment tank 11 to the secondary treatment tank 12 and preventing backflow.

[0034] With this design, after each stirring blade agitates the wastewater and colonies in the primary treatment tank 11 for a suitable time, the one-way valve 14 opens, allowing the wastewater to flow through the partition plate 13 into the secondary treatment tank 12 for subsequent settling. Then, new wastewater and colonies are added to the primary treatment tank 11, and the drive unit 2 can drive the stirring component 3 to continue working, thereby increasing the continuity of work.

[0035] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0037] Additionally, "multiple" refers to two or more.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A biochemical treatment pond for ammonia-containing wastewater, characterized in that, include: It consists of a tank body (1), a drive unit (2), and a stirring component (3); The drive unit (2) is disposed on one side of the pool body (1); The stirring component (3) includes a positioning frame (31) slidably disposed in the pool body (1) and connected to the drive unit (2), a transmission assembly (32), a plurality of first stirring blades (33) and a plurality of second stirring blades (34); The drive unit (2) is used to drive the positioning frame (31) to reciprocate along the length of the pool body (1); The transmission assembly (32) is disposed in the positioning frame (31); Each stirring blade is set inside the pool and connected to the corresponding end of the transmission assembly (32). The transmission assembly (32) is used to drive each stirring blade to rotate to agitate the water and bacteria. Furthermore, each of the second stirring blades (34) is evenly distributed at the bottom of the pool to stir the water at the bottom of the pool.

2. The ammonia-containing wastewater biochemical treatment tank according to claim 1, characterized in that: The positioning frame (31) consists of a fixed frame (311) disposed on the drive unit (2) and an adjusting frame (312) slidably disposed on the fixed frame (311). Each of the second stirring blades (34) is evenly distributed on the fixed frame (311) and rotatably connected to it. The transmission assembly (32) includes a first transmission component (321), which includes a first power unit (3213), a first transmission chain group (3212), and a plurality of first transmission rods (3211) disposed in the adjusting frame (312). Each of the first transmission rods (3211) is vertically distributed in the pool and rotatably mounted on the adjustment frame (312), and each of the first stirring blades (33) is evenly distributed on the corresponding first transmission rod (3211); The first transmission chain group (3212) is connected to the first power unit (3213) and each of the first transmission rods (3211) respectively. The first power unit (3213) drives each of the first transmission rods (3211) to rotate through the first transmission chain group (3212). The fixed frame (311) is also provided with an adjustment component (4) connected to the adjustment frame (312), which is used to monitor the water level in the pool and drive the adjustment frame (312) to move vertically.

3. The ammonia-containing wastewater biochemical treatment tank according to claim 2, characterized in that: The adjusting frame (312) is vertically provided with a first rack (5), and the adjusting frame (312) is also provided with an indicator unit (6); The adjustment component (4) includes a second power unit (41), a first gear (42), and a float (43); The second power unit (41) is mounted on the fixed frame (311), and its moving end is connected to the first gear (42); The first gear (42) meshes with the first rack (5) to drive the adjusting frame (312) to move vertically; The float (43) is vertically slidably mounted on the fixed frame (311) and in contact with the water surface in the pool. It is provided with a touch rod (431) connected to the indicator unit (6). At the same time, the touch rod (431) is also signal connected to the second power unit (41). The contact rod (431) is connected to the corresponding position of the indicator unit (6) and causes it to send a corresponding signal to the second power unit (41).

4. The ammonia-containing wastewater biochemical treatment tank according to claim 2, characterized in that: The pool body (1) has a second toothed rack (7) arranged along its length on one side; The transmission assembly (32) further includes a second transmission component (322), which is composed of a second gear (3221), a first connecting rod (3222), a first transmission belt assembly (3223), a second connecting rod (3224), a third connecting rod (3225), a bevel gear assembly (3226), and a second transmission chain assembly (3227), all of which are disposed in the fixed frame (311). The second gear (3221) meshes with the second rack (7); The first connecting rod (3222) is rotatably disposed in the fixed frame (311) and slidably connected to the pool body (1), and its two ends are respectively connected to the corresponding ends of the second gear (3221) and the first transmission belt group (3223); The second link (3224) and the third link (3225) are both rotatably mounted in the fixed frame (311); The second connecting rod (3224) is connected to the corresponding teeth of the first transmission belt assembly (3223) and the bevel gear assembly (3226); The third link (3225) is connected to another tooth of the bevel gear set (3226) and the corresponding end of the second transmission chain set (3227); The second drive chain assembly (3227) is connected to each of the second stirring blades (34); The second gear (3221) meshes with the second rack (7) and drives each of the second stirring blades (34) to rotate through the corresponding gears and transmission assembly.

5. The ammonia-containing wastewater biochemical treatment tank according to claim 4, characterized in that; The blades of each of the second stirring blades (34) are arranged in an arc shape, and the arc-shaped arrangement of the blades of two adjacent second stirring blades (34) is opposite to each other; The second transmission chain assembly (3227) can drive two adjacent second stirring blades (34) to rotate relative to each other; One end of the fixed frame (311) is also provided with a cleaning pipe (8), which has multiple suction ports (81). Each suction port (81) is respectively set between two adjacent stirring blades for extracting sediment in the pool.

6. The ammonia-containing wastewater biochemical treatment tank according to claim 1, characterized in that; The pool body (1) consists of a primary treatment pool (11) and a secondary treatment pool (12), with a partition plate (13) between the two treatment pools to prevent water flow. The partition plate (13) is provided with a one-way valve (14) for guiding water from the primary treatment tank (11) to the secondary treatment tank (12) and preventing backflow.

Images