Integrated biochemical reaction tank and sewage treatment system

Abstract

The application provides an integrated biochemical reaction tank and a sewage treatment system, and belongs to the field of sewage treatment, wherein the integrated biochemical reaction tank comprises a reaction tank body and an aeration assembly; the reaction tank body is in a cylindrical shape, and a sewage inflow port is arranged at the bottom; the aeration assembly comprises a first mounting shaft, an aeration cross pipe, a gas supply pipeline, a liquid supply pipeline and a direction adjusting mechanism; the direction adjusting mechanism is used for controlling the orientation of the nozzle of the aeration cross pipe; and the first mounting shaft can drive the aeration cross pipe to move up and down. Compared with the prior art, the aeration assembly is improved, anaerobic, facultative and aerobic are integrated in one tank body, the length of different reaction sections in the reaction tank can be changed through the axial movement of the first mounting shaft, and then the distribution ratio of the anaerobic section, the aerobic section and the anoxic section can be adjusted according to the specific condition of the sewage.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment, and more specifically, relates to an integrated biochemical reaction tank. This invention also relates to a wastewater treatment system that includes the aforementioned integrated biochemical reaction tank. Background Technology

[0002] Biological treatment is an important unit in the process of industrial wastewater treatment. Most conventional industrial wastewater biological treatment systems adopt a combination of anaerobic, anoxic, and aerobic biological treatment processes, which can reduce COD while simultaneously achieving nitrogen and phosphorus removal.

[0003] The land area occupied by a wastewater treatment plant is a factor in evaluating its construction cost. Therefore, minimizing the land area while ensuring treatment effectiveness and operational convenience can effectively reduce construction costs. Traditional biological treatment systems consist of anaerobic, anoxic, and aerobic systems connected in series, forming a complete biological treatment system. Each system is a separate, independent tank. Wastewater flows from the anaerobic tank through the anoxic tank and finally to the aerobic tank. The aerobic mixed liquor is pumped back into the anaerobic tank inlet for nitrification, thus achieving the system's denitrification function. Independent tank setups result in a large land area. The nitrification liquor recirculation requires a dedicated recirculation pump, especially for wastewater with high nitrogen content, necessitating a high-power, high-flow-rate pump, leading to high energy consumption. Furthermore, dead zones within the biological treatment tanks can easily accumulate sludge, affecting treatment efficiency. With prolonged operation, regular emptying and sludge removal from the tank bottom are necessary. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated biochemical reactor to solve the technical problems of existing wastewater treatment plant reactors that require separate reactors for anaerobic, anoxic, and aerobic processes, which necessitates additional reflux mechanisms and causes sludge to accumulate in dead corners of the reactor.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an integrated biochemical reaction tank, including a reaction tank body and an aeration component disposed in the reaction tank body;

[0006] The reaction tank body is cylindrical, and a sewage inlet is provided at the bottom;

[0007] The aeration assembly includes a first mounting shaft, an aeration horizontal pipe, an air supply pipeline, a liquid supply pipeline, and a steering mechanism;

[0008] The first mounting shaft is a hollow shaft, located within the reaction tank body and coaxial with it. The air supply pipe is located within the first mounting shaft and connected to the aeration horizontal pipes. Multiple aeration horizontal pipes are arranged radially and evenly around the axis of the first mounting shaft. The liquid supply pipe is connected to the air supply pipe, and the liquid in the liquid supply pipe flows unidirectionally to the air supply pipe. The directional adjustment mechanism includes a first bevel gear ring and a directional adjustment plate. The first bevel gear ring is rotatably located within the first mounting shaft and coaxial with it. An opening is formed on the shaft wall of the first mounting shaft. The device has multiple mounting through holes, the axial direction of which is perpendicular to the axial direction of the first mounting shaft. The mounting through holes are arranged radially and uniformly around the axial direction of the first mounting shaft. The mounting through holes are used to install the directional plate. The directional plate has a second bevel gear ring on one side inside the first mounting shaft. The second bevel gear ring is coaxial with the corresponding mounting through hole. Each second bevel gear ring is meshed with the first bevel gear ring. The directional plate swings as the second bevel gear ring rotates. The end of the aeration horizontal pipe away from the air supply pipe extends into the directional plate. The directional plate has an air jet port that communicates with the aeration horizontal pipe.

[0009] In one possible implementation, the integrated biochemical reaction tank further includes a drive and guide assembly, which includes a drive mechanism and a guide mechanism. The drive mechanism is used to drive the hollow shaft and the first bevel gear ring to rotate. The top of the reaction tank is provided with a first mounting hole. The guide mechanism includes a Watt's linkage that can guide the movement of the hollow shaft. The Watt's linkage and the first mounting hole can limit the movement of the hollow shaft in the vertical direction.

[0010] In one possible implementation, the drive mechanism includes a drive motor located on one side of the top of the hollow shaft, and the drive motor is capable of driving the first mounting shaft or the first bevel gear ring to rotate respectively.

[0011] In one possible implementation, the aeration horizontal pipe is configured as a self-aligning hose, the directional plate has an installation channel, and the self-aligning hose is disposed in the installation channel.

[0012] In one possible implementation, the drive guide assembly further includes a drive cylinder. The Watt's linkage includes a first link, a second link, and a positioning rod. The first link and the second link are located on both sides of the positioning rod in the horizontal direction. The outer ends of the first link and the second link are fixed hinge points. The positioning rod extends in the vertical direction and is movably connected to the hollow shaft in the middle. The top and bottom ends of the positioning rod are provided with movable hinge points. The inner ends of the first link and the second link are respectively connected to the two movable hinge points. The cylinder body of the drive cylinder is located on the top of the reaction tank body. The telescopic rod of the drive cylinder is used to drive the drive motor and the first drive shaft to move up and down.

[0013] In one possible implementation, the reaction tank body further includes a filter screen disposed at the sewage inlet, and the filter screen is movable in the vertical direction to detach from the sewage inlet.

[0014] In one possible implementation, the directional plate is provided with a sludge scraper on the side away from the air outlet of the aeration horizontal pipe.

[0015] In one possible implementation, the adjacent edges of any adjacent steering plates can abut against each other in a sealed manner, the inner wall of the reaction tank body is provided with an annular rubber sealing ring, the rubber sealing ring is coaxial with the reaction tank body, and the end of the steering plate away from the first mounting shaft can abut against the inner edge of the rubber sealing ring in a sealed manner.

[0016] In one possible implementation, there are multiple rubber sealing rings, and each rubber sealing ring is arranged at intervals along the vertical direction.

[0017] Compared with the prior art, the beneficial effect of the integrated biochemical reaction tank provided by the present invention is that: as the first bevel gear ring rotates, each adjusting plate can rotate accordingly through the meshing of the second bevel gear ring and the first bevel gear ring, thereby the aeration horizontal pipe installed in the adjusting plate can adjust its own air outlet orientation.

[0018] Furthermore, in this invention, the gas can be mixed with the liquid in the supply pipeline, allowing the gas to first fuse with the liquid, thus ensuring a more thorough fusion of the gas with the wastewater in the reaction tank. In addition, the mixed gas is ejected through the nozzle of the aeration horizontal pipe. As the adjusting plate rotates around the mounting hole, the aeration horizontal pipe sprays a high-pressure jet of the mixed oil liquid onto the inner wall of the reaction tank, effectively cleaning the inner and bottom walls. Before or during cleaning, the adjusting plate in this invention can also scrape and clean the sludge at the bottom of the reaction tank by rotating and axially moving the first mounting shaft, thus solving the technical problem of inconvenient sludge cleaning at the bottom of existing reaction tanks.

[0019] In addition to the aforementioned beneficial effects, this invention integrates anaerobic, facultative anaerobic, and aerobic processes within a single tank. Wastewater enters from the bottom of the tank through a distribution system, ascends through the anaerobic sludge layer, and reaches the vicinity of the bottom of the contact surface between the anaerobic and aerobic zones. Due to the presence of aeration components at the bottom of the aerobic zone, the area near the bottom of the anaerobic and aerobic zones is actually a facultative anaerobic zone. Upon further ascent to the upper side of the aeration horizontal pipe, the presence of aeration creates an aerobic zone. This invention can also change the length of different reaction sections in the reaction tank by axially moving the first mounting shaft, thereby adjusting the distribution ratio of the anaerobic, aerobic, and anoxic sections according to the specific conditions of the wastewater. Simultaneously, the rotation and axial movement of the first mounting shaft can drive the adjustment plate to move, stirring the wastewater while aerating and improving the compatibility between the gas and wastewater.

[0020] Another object of the present invention is to provide a wastewater treatment system, including the integrated biochemical reaction tank mentioned above.

[0021] Compared with the prior art, the wastewater treatment system of the present invention has all the advantages of the above-mentioned integrated biochemical reaction tank, which will not be repeated here. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0023] Figure 1 A schematic diagram showing the positional relationship between the directional plates and the main body of the integrated biochemical reaction tank provided by the present invention when they are closed together;

[0024] Figure 2 A schematic diagram showing the positional relationship between the directional plate and the main body of the integrated biochemical reaction tank provided by the present invention under the deflected state of the directional plate.

[0025] Figure 3 A schematic diagram of the orientation plate in the integrated biochemical reaction tank provided by the present invention in the deflection state;

[0026] Figure 4 A schematic diagram of the internal structure of the aeration component in the integrated biochemical reaction tank provided by the present invention;

[0027] Figure 5 This is a schematic diagram of the drive and guidance component in the integrated biochemical reaction tank provided by the present invention.

[0028] In the picture:

[0029] 1. Reaction tank body; 11. Rubber sealing ring;

[0030] 2. Aeration assembly; 21. First mounting shaft; 22. Aeration horizontal pipe; 23. Air jet; 24. Air supply pipeline; 25. Liquid supply pipeline; 26. Direction adjustment mechanism; 261. First bevel gear ring; 262. Second bevel gear ring; 263. Direction adjustment plate; 264. Sludge scraper; 27. Second mounting shaft;

[0031] 3. Drive guide assembly; 31. Drive motor; 32. Drive cylinder; 33. Watt's connecting rod. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0033] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0034] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0035] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0036] Please refer to the following: Figures 1 to 5The integrated biochemical reactor provided by this invention will now be described. This integrated biochemical reactor includes a reactor body 1 and an aeration assembly 2 disposed within the reactor body 1. The reactor body 1 is cylindrical and has a wastewater inlet at the bottom. The aeration assembly 2 includes a first mounting shaft 21, a horizontal aeration pipe 22, an air supply pipe 24, a liquid supply pipe 25, and a steering mechanism 26. The first mounting shaft 21 is a hollow shaft, disposed within the reactor body 1 and coaxial with it. The air supply pipe 24 is disposed within the first mounting shaft 21 and communicates with the horizontal aeration pipe 22. Multiple horizontal aeration pipes 22 are arranged radially and uniformly around the axis of the first mounting shaft 21. The liquid supply pipe 25 communicates with the air supply pipe 24, and the liquid in the liquid supply pipe 25 flows unidirectionally to the air supply pipe 24. The steering mechanism 26 includes a first conical gear ring 261 and a steering plate. 263. The first bevel gear ring 261 is rotatably disposed inside the first mounting shaft 21 and is coaxial with the first mounting shaft 21. Multiple mounting through holes are provided on the shaft wall of the first mounting shaft 21. The axial direction of each mounting through hole is perpendicular to the axial direction of the first mounting shaft 21, and the mounting through holes are radially and uniformly arranged around the axial direction of the first mounting shaft 21. The mounting through holes are used to install the adjusting plate 263. The adjusting plate 263 is provided with a second bevel gear ring 262 on one side inside the first mounting shaft 21. The second bevel gear ring 262 is coaxial with the corresponding mounting through hole. Each second bevel gear ring 262 is meshed with the first bevel gear ring 261. The adjusting plate 263 swings with the rotation of the second bevel gear ring 262. The end of the aeration horizontal pipe 22 away from the air supply pipe 24 extends into the adjusting plate 263. The adjusting plate 263 is provided with an air jet port 23 that communicates with the aeration horizontal pipe 22.

[0037] Compared with the prior art, in the specific implementation process of this embodiment, as the first bevel gear ring 261 rotates, each adjusting plate 263 can rotate along with it through the meshing of the second bevel gear ring 262 and the first bevel gear ring 261, thereby the aeration horizontal pipe 22 installed in the adjusting plate 263 can adjust its own air outlet orientation.

[0038] Furthermore, in this invention, the gas can be mixed with the liquid in the supply pipe 25, allowing the gas to first fuse with the liquid, thus making the fusion of the gas with the wastewater in the reaction tank more thorough. In addition, the mixed gas is ejected through the jet nozzle 23 of the aeration horizontal pipe 22. As the adjusting plate 263 rotates around the mounting through hole, the aeration horizontal pipe 22 sprays a high-pressure jet of the mixed oil liquid onto the inner wall of the reaction tank, effectively cleaning the inner and bottom walls of the reaction tank. Before or during cleaning, the adjusting plate 263 in this invention can also scrape and clean the sludge at the bottom of the reaction tank by rotating and axially moving the first mounting shaft 21, thereby solving the technical problem of inconvenient sludge cleaning at the bottom of existing reaction tanks.

[0039] In addition to the aforementioned beneficial effects, this invention integrates anaerobic, facultative anaerobic, and aerobic processes within a single tank. Wastewater enters from the bottom of the tank through a distribution system, ascends through the anaerobic sludge layer, and reaches the vicinity of the bottom of the contact surface between the anaerobic and aerobic zones. Due to the presence of the aeration components 2 at the bottom of the aerobic zone, the area near the bottom of the anaerobic and aerobic zones is actually a facultative anaerobic zone. Upon further ascent to the upper side of the aeration horizontal pipe 22, the presence of aeration creates an aerobic zone. This invention can also change the length of different reaction sections in the reaction tank by axially moving the first mounting shaft 21, thereby adjusting the distribution ratio of the anaerobic, aerobic, and anoxic sections according to the specific conditions of the wastewater. Simultaneously, the rotation and axial movement of the first mounting shaft 21 can drive the adjustment plate 263 to move, stirring the wastewater while aerating and improving the compatibility between the gas and wastewater.

[0040] Based on the above embodiments, in one feasible implementation, the integrated biochemical reaction tank further includes a drive and guide assembly 3. The drive and guide assembly 3 includes a drive mechanism and a guide mechanism. The drive mechanism is used to drive the hollow shaft and the first bevel gear ring 261 to rotate. The top of the reaction tank is provided with a first mounting hole. The guide mechanism includes a Watt's linkage 33 that can guide the movement of the hollow shaft. The Watt's linkage 33 and the first mounting hole can limit the hollow shaft to move in the vertical direction, so that the hollow shaft and the first bevel gear ring 261 can be driven to rotate independently by the drive mechanism. When the hollow shaft rotates, it drives each adjusting plate to rotate around the axial direction of the hollow shaft, thereby stirring the sewage in the reaction tank during aeration. At the same time, by switching the power output path of the drive mechanism, the first bevel gear ring 261 can be driven to rotate, thereby causing the adjusting plate to rotate and adjust the orientation of the air outlet of the aeration horizontal pipe 22. Moreover, in this embodiment, the Watt's linkage 33 can also drive the hollow shaft to move up and down, and can guide the up and down movement of the hollow shaft to prevent the hollow shaft from deviating during the up and down movement.

[0041] Furthermore, the middle of the Watt rod is hinged with a drive ring that is sleeved on the outer circumference of the hollow shaft. During the up-and-down movement of the middle of the Watt rod 33, the hollow shaft can be moved up and down through the hinged drive ring, thereby adjusting the aeration height of the aeration assembly 2.

[0042] In one feasible embodiment, the drive mechanism includes a drive motor 31, which is located on one side of the top of the hollow shaft. The drive motor 31 can drive the first mounting shaft 21 or the first bevel gear ring 261 to rotate. More specifically, the drive mechanism also includes a second mounting shaft 27 that drives the first bevel gear ring 261 to rotate. The drive motor 31 drives the first mounting shaft 21 and the second mounting shaft 27 to rotate through a gear set. The gear set includes a first gear, a second gear, and a third gear spaced apart from top to bottom, as well as a retainer for mounting the gears. The axial directions of the three gears are all parallel to the vertical direction. The cage can move up and down. During the up and down movement of the first gear, it is always engaged with the power output end of the drive motor 31. The second gear is engaged with the second mounting shaft 27 for transmission, and the third gear is engaged with the first mounting shaft 21 for transmission. As the cage moves up and down, the second gear is engaged with the second mounting shaft 27, or the third gear is engaged with the first mounting shaft 21, or the second gear is engaged with the second mounting shaft 27 while the third gear is engaged with the first mounting shaft 21, thereby driving the first mounting shaft 21 and the second mounting shaft 27 to rotate, or simultaneously controlling the first mounting shaft 21 and the second mounting shaft 27 to rotate or stop.

[0043] Based on the above embodiments, in one possible implementation, the aeration horizontal pipe 22 is configured as a self-shaping hose. The adjusting plate 263 has an installation channel, and the self-shaping hose is placed in the installation channel. By controlling the rotation of the adjusting plate, the orientation of the outlet end of the aeration horizontal pipe 22 can be changed. This can both change the direction of the airflow sprayed from the aeration horizontal pipe 22 to enhance the mixing effect on the wastewater and allow the water-air mixture sprayed from the aeration horizontal pipe 22 to impact the sludge layer, solving the technical problem of inconvenient sludge treatment in existing wastewater treatment ponds. Furthermore, to enhance the sludge cleaning efficiency, a scraper 264 is provided on the side of the adjusting plate 263 away from the air outlet of the aeration horizontal pipe 22. The scraper 264 scrapes off the sludge by controlling the deflection angle of the adjusting plate 263, and the sludge is cleaned by the flushing effect of the water-air mixture.

[0044] To drive the Watt's linkage 33 and the entire aeration assembly 2 to move up and down, the drive guide assembly 3 also includes a drive cylinder 32. The Watt's linkage 33 includes a first link, a second link, and a positioning rod. The first link and the second link are located on both sides of the positioning rod in the horizontal direction. The outer ends of the first link and the second link are fixed hinge points. The positioning rod extends in the vertical direction and is movably connected to the hollow shaft in the middle. The top and bottom ends of the positioning rod are provided with movable hinge points. The inner ends of the first link and the second link are respectively connected to the two movable hinge points. The cylinder body of the drive cylinder 32 is located on the top of the reaction tank body 1. The telescopic rod of the drive cylinder 32 is used to drive the drive motor 31 and the first drive shaft to move up and down. With this configuration, the Watt's linkage 33 can drive the drive ring mentioned above to move the first drive shaft up and down during the operation. At the same time, the top of the reaction tank body 1 is provided with a top cover, and a guide hole is opened on the top cover. The guide hole cooperates with the Watt's linkage 33 to guide the up and down movement of the first drive shaft.

[0045] In one possible embodiment, the reaction tank body 1 further includes a filter screen disposed at the sewage inlet, and the filter screen can move vertically to detach from the sewage inlet to facilitate the inflow of sewage. The filter screen is also configured to filter the sewage, preventing excessive particulate matter from entering the reaction tank. Furthermore, when it is necessary to clean the sludge accumulated in the reaction tank, this embodiment can further facilitate the outflow of sludge by moving the filter screen upwards, thereby making the overall structural arrangement of the reaction tank body 1 more rational.

[0046] In one possible implementation, the adjacent edges of any adjacent adjusting plates 263 can abut against each other in a sealed manner. The inner wall of the reaction tank body 1 is provided with an annular rubber sealing ring 11, which is coaxial with the reaction tank body 1. The end of the adjusting plate 263 away from the first mounting shaft 21 can abut against the inner edge of the rubber sealing ring 11 in a sealed manner. This forms a relatively sealed sealing plate through the overlapping of the adjusting plates 263, thereby isolating the internal space of the reaction tank body 1 and making the boundary lines of the reaction space within the reaction tank body 1 clearer. This helps to solve the technical problem of the difficulty in controlling the oxygen concentration distribution near the existing aeration components 2. Preferably, based on the above embodiments, in one implementation, there are multiple rubber sealing rings 11, which are spaced apart in the vertical direction. By moving the aeration components 2 vertically, the adjusting plates 263 can cooperate with the sealing rings at different heights, thus ensuring the sealing effect of the aeration components 2 on the reaction tank while adjusting the height of the aeration components 2.

[0047] Compared with the prior art, the beneficial effect of the integrated biochemical reaction tank provided by the present invention is that: as the first bevel gear ring 261 rotates, each adjusting plate 263 can rotate along with it through the meshing of the second bevel gear ring 262 and the first bevel gear ring 261, thereby the aeration horizontal pipe 22 installed in the adjusting plate 263 can adjust its own air outlet orientation.

[0048] Furthermore, in this invention, the gas can be mixed with the liquid in the supply pipe 25, allowing the gas to first fuse with the liquid, thus making the fusion of the gas with the wastewater in the reaction tank more thorough. In addition, the mixed gas is ejected through the jet nozzle 23 of the aeration horizontal pipe 22. As the adjusting plate 263 rotates around the mounting through hole, the aeration horizontal pipe 22 sprays a high-pressure jet of the mixed oil liquid onto the inner wall of the reaction tank, effectively cleaning the inner and bottom walls of the reaction tank. Before or during cleaning, the adjusting plate 263 in this invention can also scrape and clean the sludge at the bottom of the reaction tank by rotating and axially moving the first mounting shaft 21, thereby solving the technical problem of inconvenient sludge cleaning at the bottom of existing reaction tanks.

[0049] In addition to the aforementioned beneficial effects, this invention integrates anaerobic, facultative anaerobic, and aerobic processes within a single tank. Wastewater enters from the bottom of the tank through a distribution system, ascends through the anaerobic sludge layer, and reaches the vicinity of the bottom of the contact surface between the anaerobic and aerobic zones. Due to the presence of the aeration components 2 at the bottom of the aerobic zone, the area near the bottom of the anaerobic and aerobic zones is actually a facultative anaerobic zone. Upon further ascent to the upper side of the aeration horizontal pipe 22, the presence of aeration creates an aerobic zone. This invention can also change the length of different reaction sections in the reaction tank by axially moving the first mounting shaft 21, thereby adjusting the distribution ratio of the anaerobic, aerobic, and anoxic sections according to the specific conditions of the wastewater. Simultaneously, the rotation and axial movement of the first mounting shaft 21 can drive the adjustment plate 263 to move, stirring the wastewater while aerating and improving the compatibility between the gas and wastewater.

[0050] Based on the same inventive concept, the present invention also proposes a wastewater treatment system, which includes the integrated biochemical reaction tank mentioned above.

[0051] Compared with the prior art, the wastewater treatment system of the present invention has all the advantages of the above-mentioned integrated biochemical reaction tank, which will not be repeated here.

[0052] 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. An integrated biochemical reaction tank, characterized in that, It includes a reaction tank body (1) and an aeration assembly (2) disposed in the reaction tank body (1). The reaction tank body (1) is cylindrical and has a sewage inlet at the bottom; The aeration assembly (2) includes a first mounting shaft (21), an aeration horizontal pipe (22), an air supply pipe (24), a liquid supply pipe (25), and a steering mechanism (26). The first mounting shaft (21) is a hollow shaft, located inside the reaction tank body (1) and coaxial with it. The air supply pipe (24) is located inside the first mounting shaft (21) and connected to the aeration horizontal pipe (22). There are multiple aeration horizontal pipes (22), which are arranged radially and uniformly around the axis of the first mounting shaft (21). The liquid supply pipe (25) is connected to the air supply pipe (24), and the liquid in the liquid supply pipe (25) flows unidirectionally to the air supply pipe (24). The adjusting mechanism (26) includes a first bevel gear ring (261) and an adjusting plate (263). The first bevel gear ring (261) is rotatably located inside the first mounting shaft (21) and coaxial with it. Multiple mounting through holes are provided on the shaft wall. The axial direction of each mounting through hole is perpendicular to the axial direction of the first mounting shaft (21), and the mounting through holes are arranged radially and uniformly around the axial direction of the first mounting shaft (21). The mounting through holes are used to install the adjusting plate (263). The adjusting plate (263) is provided with a second bevel gear ring (262) on one side inside the first mounting shaft (21). The second bevel gear ring (262) is coaxial with the corresponding mounting through hole. Each second bevel gear ring (262) is meshed with the first bevel gear ring (261). The adjusting plate (263) swings with the rotation of the second bevel gear ring (262). The end of the aeration horizontal pipe (22) away from the air supply pipe (24) extends into the adjusting plate (263). The adjusting plate (263) is provided with an air jet port (23) communicating with the aeration horizontal pipe (22). The integrated biochemical reaction tank also includes a drive guide assembly (3), which includes a drive mechanism, a guide mechanism, and a drive cylinder (32). The drive mechanism is used to drive the first mounting shaft (21) and the first bevel gear ring (261) to rotate. The top of the reaction tank is provided with a first mounting hole. The guide mechanism includes a Watt's linkage (33) that can guide the movement of the first mounting shaft (21). The Watt's linkage (33) and the first mounting hole can limit the movement of the first mounting shaft (21) in the vertical direction. The driving mechanism includes a drive motor (31), which is located on the top of the first mounting shaft (21). The driving mechanism also includes a second mounting shaft (27) that drives the first bevel gear ring (261) to rotate. The drive motor (31) can drive the first mounting shaft (21) and the second mounting shaft (27) to rotate respectively. The telescopic rod of the drive cylinder (32) is used to drive the drive motor (31) and the first mounting shaft (21) to move up and down. The edges of any adjacent adjusting plates (263) can be sealed and abutted against each other. The inner wall of the reaction tank body (1) is provided with an annular rubber sealing ring (11). The rubber sealing ring (11) is coaxial with the reaction tank body (1). The end of the adjusting plate (263) away from the first mounting shaft (21) can be sealed and abutted against the inner edge of the rubber sealing ring (11). Through the mutual overlap of each adjusting plate (263), a relatively sealed sealing plate can be formed, thereby isolating the internal space of the reaction tank body (1) and forming an anaerobic section, anoxic section and aerobic section in the reaction tank body. The number of rubber sealing rings (11) is multiple, and each rubber sealing ring (11) is arranged at intervals in the vertical direction.

2. The integrated biochemical reaction tank as described in claim 1, characterized in that, The aeration horizontal pipe (22) is configured as a flexible hose, and the directional plate (263) is provided with an installation channel, in which the aeration horizontal pipe (22) is located.

3. The integrated biochemical reaction tank as described in claim 1, characterized in that, The Watt linkage (33) includes a first linkage, a second linkage, and a positioning rod. The first linkage and the second linkage are located on both sides of the positioning rod. The outer ends of the first linkage and the second linkage are fixed hinge points. The positioning rod extends in the vertical direction and is movably connected to the first mounting shaft (21) in the middle. The top and bottom ends of the positioning rod are provided with movable hinge points. The inner ends of the first linkage and the second linkage are respectively connected to the two movable hinge points. The cylinder body of the driving cylinder (32) is located on the top of the reaction tank body (1).

4. The integrated biochemical reaction tank as described in claim 1, characterized in that, The reaction tank body (1) also includes a filter screen disposed at the sewage inlet, and the filter screen can move in the vertical direction to detach from the sewage inlet.

5. The integrated biochemical reaction tank as described in claim 1, characterized in that, The side of the steering plate (263) is provided with a mud scraper (264).

6. A wastewater treatment system, characterized in that, Includes the integrated biochemical reaction tank as described in any one of claims 1 to 5.

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