River drain outlet combined type water quality purification equipment

Abstract

The invention relates to the technical field, in particular to river drain outlet combined type water quality purification equipment which comprises a purification pond with one end provided with a supporting plate, a filter screen is installed at the upper end of the interior of the purification pond through a winding assembly, a mounting hole is formed in one end of the purification pond, and a cleaning assembly used for cleaning the filter screen is installed in the mounting hole. An aeration stirring rod and a first stirring rod which are distributed left and right are rotationally mounted in the purification tank, an aeration assembly is mounted at the upper end of one side of the purification tank, a material conveying assembly is mounted at the lower end of one side of the purification tank, and one side of the purification tank is connected with a sedimentation tank through a pipeline. Impurities in meshes of the filter screen are flushed into the collecting box to be collected, the filter screen does not need to be detached, the device is convenient and rapid, a flocculating agent and sewage can be fully mixed, the precipitation speed of substances in the sewage is increased, the flocculating agent can be uniformly sprayed into the sewage, the flocculating agent and the sewage are uniformly mixed, and the precipitation speed is increased.

Description

Technical Field

[0001] The present invention relates to a river water quality purification device, specifically a composite water quality purification device for river sewage outlets, belonging to the technical field of water quality purification devices. Background Technique

[0002] During the production process of chemical plants, various wastewaters will be generated. If they are directly discharged into rivers without treatment, they will pollute the rivers and soil, causing serious harm to the ecological environment. The composite water quality purification device for river sewage outlets is a device that comprehensively uses various technologies to purify the sewage at river sewage outlets, filtering out large particulate impurities and suspended solids in the wastewater to reduce the damage of pollutants to the river ecological environment and improve the river water quality.

[0003] For example, the publication number is: CN215403525U, a river sewage purification device for municipal engineering, belonging to the technical field of river sewage purification, including a treatment tank. An inlet is provided above one side of the treatment tank. A grid is slidably connected to one side inside the treatment tank. A clamping block is provided below the grid. A clamping groove is embedded on one side of the treatment tank bottom near the clamping block. A cover plate is rotatably provided above the treatment tank near one side of the grid. A drain outlet is provided above the other side of the treatment tank. In this utility model, when the valve of the inlet is opened, the sewage in the river flows into the treatment tank through the inlet. The large impurities in the sewage are filtered by the grid. When the impurities are filtered to a certain amount, the cover plate is opened, and at the same time, the grid is pulled out to effectively remove the impurities. When the grid is placed in the treatment tank, the clamping block is embedded in the clamping groove to increase its stability and avoid damaging the connection between the slider and the chute under the condition of excessive water pressure.

[0004] For example, the publication number is: CN218853709U, a purification device applied to a river sewage outlet, which is arranged outside the river sewage outlet; including a sedimentation tank, a retaining wall, a reservoir, an inlet pipe, and a drain pipe; one end of the sedimentation tank is connected to the river sewage outlet, and the other end is built with the retaining wall. The reservoir is arranged behind the retaining wall. The inlet pipe passes through the retaining wall, and both ends are connected to the sedimentation tank and the reservoir to communicate. The drain pipe is arranged at the bottom of the reservoir. In this utility model, it can effectively reduce the solid particles and impurities dissolved in the water in the sewage discharged from the sewage outlet, preventing the river sewage outlet from being gradually blocked.

[0005] When the common composite water quality purification equipment for river sewage outlets is in use, although it can filter large particulate impurities in the wastewater through a filter screen, and can also add a flocculant and mix it through a stirring rod. However, after long-term use, the mesh holes of the filter screen are prone to being blocked. When cleaning the filter screen, generally, the filter screen is removed for cleaning, which is rather inconvenient, time-consuming and laborious, and the filtering efficiency is low. Moreover, when mixing the flocculant and the wastewater, only stirring and mixing through the stirring rod will not stir the wastewater sufficiently, and the substances in the wastewater will precipitate at a slower speed, and the mixing efficiency is low.

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] The purpose of the present invention is to provide a composite water quality purification equipment for river sewage outlets, which has the functions of automatically cleaning the filter screen and improving the stirring effect, in order to solve the above problems.

[0008] The present invention realizes the above purpose through the following technical solutions. A composite water quality purification equipment for river sewage outlets includes a purification tank with a support plate installed at one end. The upper end of the purification tank is fixedly installed with a cover plate having a water inlet at one end. The upper end inside the purification tank is installed with a filter screen through a winding component. An installation hole is opened at one end of the purification tank, and a cleaning component for cleaning the filter screen is installed in the installation hole. Inside the purification tank, an aeration stirring rod and a first stirring rod are rotatably installed in a left-right distribution. Stirring blades are arranged on the outer sides of the aeration stirring rod and the first stirring rod. An aeration component is installed at the upper end of one side of the purification tank. One end of the aeration component is connected to the aeration stirring rod, and the aeration component is linked with the cleaning component. A feeding component is installed at the lower end of one side of the purification tank. One end of the feeding component is connected to the first stirring rod. One side of the purification tank is connected to a sedimentation tank through a pipeline. A square water outlet pipe is fixedly installed at one end of the sedimentation tank. An activated carbon plate is installed inside the square water outlet pipe. An integrated control panel is fixedly installed at one end of the purification tank. During use, a controller is arranged inside the integrated control panel to control each component. The activated carbon plate is used to adsorb organic substances in the sewage. The feeding component is used to convey the flocculant into the purification tank. The aeration component is used to aerate the inside of the purification tank. The winding component is used to move the filter screen.

[0009] Furthermore, in order to enable the aeration stirring rod and the first stirring rod to rotate simultaneously, gears are fixedly installed at one ends of the aeration stirring rod and the first stirring rod, and the gears are meshed with each other. A first motor is fixedly installed at the lower end of the purification tank, and the output end of the first motor is fixedly connected to the gear. The first motor is electrically connected to the integrated control panel.

[0010] Further, in order to limit the filter screen, a guide rod is rotatably installed inside the purification tank, and one end of the guide rod contacts the filter screen.

[0011] Further, in order to wind up the filter screen, the winding assembly includes a winding shaft and a second motor. The winding shaft is symmetrically installed inside the purification tank. One end of the filter screen is wound around the winding shaft, and the other end of the filter screen is fixedly connected to the winding shaft on the other side. The second motor is fixedly installed at one end of the purification tank, the output end of the second motor is fixedly connected to the winding shaft, and the second motor is electrically connected to the integrated control panel.

[0012] Further, in order to enable the winding shafts to rotate simultaneously, a pulley is fixedly installed at one end of the winding shaft, and a belt is installed outside the pulley.

[0013] Further, in order to aerate the inside of the purification tank, the aeration assembly includes an air pump and an air delivery plate with a first cavity formed inside. The air delivery plate is inserted into one side of the purification tank, and the air delivery plate is rotatably connected to the aeration stirring rod. The air pump is fixedly installed on one side of the purification tank, a first air pipe is fixedly installed at the output end of the air pump, one end of the first air pipe communicates with the first cavity, an air delivery cavity is formed at one end of the aeration stirring rod, the air delivery cavity communicates with the first cavity through a pipeline, air outlet holes are linearly arranged on the outside of the aeration stirring rod, the air outlet holes communicate with the air delivery cavity, a waterproof breathable valve is fixedly installed inside the air outlet holes, the air pump is electrically connected to the integrated control panel, and the waterproof breathable valve is used to prevent sewage from entering the air delivery cavity.

[0014] Further, in order to clean the mesh holes of the filter screen, the cleaning assembly includes a U-shaped cleaning plate. The U-shaped cleaning plate is inserted into the mounting hole and connected to the purification tank through a positioning screw. Cleaning brushes are symmetrically installed inside the U-shaped cleaning plate, and one end of the cleaning brush contacts the filter screen. An air storage cavity is formed inside one end of the U-shaped cleaning plate, air outlet pipes are linearly arranged on one side of the U-shaped cleaning plate, one end of the air outlet pipe communicates with the air storage cavity, a second air pipe with a solenoid valve at one end is fixedly installed on one side of the purification tank, one end of the second air pipe communicates with the air storage cavity, and the other end of the second air pipe communicates with the first air pipe.

[0015] Further, in order to collect impurities, a collection box for collecting impurities is fixedly installed on one side of the U-shaped cleaning plate.

[0016] Further, in order to convey the flocculant into the second cavity, the feeding assembly includes a storage tank, a water pump, and an infusion plate with a second cavity formed therein. The infusion plate is inserted on one side of the purification tank, and is fixedly connected to the air delivery plate and rotatably connected to the first stirring rod. The storage tank is fixedly installed on one side of the purification tank, and the water pump is fixedly installed at the upper end of the storage tank. The water pump is connected to the interior of the storage tank through a pipeline, and one end of the water pump is connected to the second cavity through a pipeline. The water pump is electrically connected to the integrated control panel.

[0017] Further, in order to evenly spray the flocculant into the purification tank, a liquid infusion cavity is formed at one end of the first stirring rod. The liquid infusion cavity is connected to the second cavity, and liquid outlet holes are linearly arranged on the outer side of the first stirring rod. The liquid outlet holes are connected to the liquid infusion cavity, and one-way valves are fixedly installed inside the liquid outlet holes.

[0018] Technical effects and advantages of the present invention: 1. The present invention drives the filter net to move through the second motor, so that the cleaning brush brushes the filter net. At the same time, the air delivery pipe evenly sprays air onto the filter net, flushing the impurities in the filter net holes into the collection box for collection. There is no need to disassemble the filter net, which is convenient, fast, time-saving and labor-saving, improving the cleaning efficiency. The air sprayed by the air delivery pipe is generated by the air pump, eliminating the need to use a new air pump for air supply, saving resources and reducing costs.

[0019] 2. The present invention drives the aeration stirring rod and the first stirring rod to rotate simultaneously through the gear, stirring the sewage mixture, and at the same time aerating the sewage mixture through the air outlet holes, so that the flocculant is fully mixed with the sewage, accelerating the precipitation speed of the substances in the sewage and thus improving the mixing efficiency.

[0020] 3. The present invention evenly sprays the flocculant into the wastewater through the liquid outlet holes, enabling the flocculant to be evenly mixed with the wastewater and accelerating the precipitation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the connection structure of the purification tank of the present invention;

[0023] Figure 3 is a schematic diagram of the installation hole structure of the present invention;

[0024] Figure 4 is a schematic cross-sectional view of the purification tank of the present invention;

[0025] Figure 5 is a schematic diagram of the winding assembly structure of the present invention;

[0026] Figure 6 Schematic structural diagram of the cleaning component of the present invention;

[0027] Figure 7 Schematic structural diagram of the connection between the aeration component and the feeding component of the present invention;

[0028] Figure 8 Schematic cross-sectional structural diagram of the air delivery plate and the liquid delivery plate of the present invention;

[0029] In the figure: 1, purification tank; 2, winding assembly; 201, winding shaft; 202, second motor; 203, pulley; 204, belt; 3, filter screen; 4, mounting hole; 5, cleaning component; 501, U-shaped cleaning plate; 502, cleaning brush; 503, gas storage cavity; 504, air outlet pipe; 505, second air delivery pipe; 506, collection box; 6, aeration stirring rod; 7, first stirring rod; 8, aeration component; 801, air pump; 802, first cavity; 803, air delivery plate; 804, first air delivery pipe; 805, air delivery cavity; 806, air outlet hole; 807, waterproof and breathable valve; 9, feeding component; 901, storage tank; 902, water pump; 903, second cavity; 904, liquid delivery plate; 905, liquid delivery cavity; 906, liquid outlet hole; 907, one-way valve; 10, sedimentation tank; 11, square water outlet pipe; 12, activated carbon plate; 13, integrated control panel; 14, gear; 15, first motor; 16, guide rod. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 - 8As shown in the figure, a composite water quality purification device for a river sewage outlet includes a purification tank 1 with a support plate installed at one end. A cover plate with a water inlet at one end is fixedly installed at the upper end of the purification tank 1. A filter net 3 is installed inside the upper end of the purification tank 1 through a winding component 2. An installation hole 4 is opened at one end of the purification tank 1, and a cleaning component 5 for cleaning the filter net 3 is installed in the installation hole 4. Aeration stirring rods 6 and a first stirring rod 7 are rotatably installed inside the purification tank 1 and are distributed left and right. Stirring blades are arranged on the outer sides of the aeration stirring rods 6 and the first stirring rod 7. An aeration component 8 is installed at the upper end of one side of the purification tank 1. One end of the aeration component 8 is connected to the aeration stirring rod 6, and the aeration component 8 is linked with the cleaning component 5. A feeding component 9 is installed at the lower end of one side of the purification tank 1. One end of the feeding component 9 is connected to the first stirring rod 7. One side of the purification tank 1 is connected to a sedimentation tank 10 through a pipeline. A square water outlet pipe 11 is fixedly installed at one end of the sedimentation tank 10. An activated carbon plate 12 is installed inside the square water outlet pipe 11. An integrated control panel 13 is fixedly installed at one end of the purification tank 1. Gears 14 are fixedly installed at one ends of the aeration stirring rod 6 and the first stirring rod 7 respectively, and the gears 14 are meshed with each other. A first motor 15 is fixedly installed at the lower end of the purification tank 1. The output end of the first motor 15 is fixedly connected to the gear 14, and the first motor 15 is electrically connected to the integrated control panel 13. A guide rod 16 is rotatably installed inside the purification tank 1, and one end of the guide rod 16 is in contact with the filter net 3. When in use, a solenoid valve is arranged in the pipeline between the purification tank 1 and the sedimentation tank 10, and the solenoid valve is electrically connected to the integrated control panel 13. When in use, the solenoid valve can be opened through the integrated control panel 13. First, sewage is conveyed into the purification tank 1 through the water inlet. The filter net 3 filters the sewage, and the filtered sewage flows into the bottom of the purification tank 1. Then, the feeding component 9 is started through the integrated control panel 13 to uniformly convey the flocculant into the purification tank 1, so that the flocculant is uniformly mixed with the wastewater, and the sedimentation speed is accelerated. Then, the first motor 15 is started through the integrated control panel 13 to drive the first stirring rod 7 to rotate, and then the aeration stirring rod 6 is driven to rotate through the gear 14 to stir the sewage mixture. At the same time, the aeration component 8 is started to aerate the sewage mixture, so that the flocculant is fully mixed with the sewage, and the sedimentation speed of the substances in the sewage is accelerated, thereby improving the mixing efficiency. Then, the mixed sewage mixture is conveyed into the sedimentation tank 10 through the pipeline for sedimentation. After the sedimentation is completed, the organic matter in the sewage is adsorbed by the activated carbon plate 12 inside the square water outlet pipe 11, and finally discharged into the river. When the filter net 3 needs to be cleaned, first, the winding component 2 is started through the integrated control panel 13 to wind up the filter net 3, so that the cleaning component 5 automatically cleans the filter net 3, and the impurities in the mesh holes of the filter net 3 are washed away without removing the filter net 3, which is convenient, fast, time-saving and labor-saving, and improves the cleaning efficiency.

[0032] As Figure 5As shown in the figure, the winding component 2 includes a winding shaft 201 and a second motor 202. The winding shafts 201 are symmetrically installed inside the purification tank 1. One end of the filter net 3 is wound around the winding shaft 201, and the other end of the filter net 3 is fixedly connected to the winding shaft 201 on the other side. The second motor 202 is fixedly installed at one end of the purification tank 1. The output end of the second motor 202 is fixedly connected to the winding shaft 201. The second motor 202 is electrically connected to the integrated control panel 13. A pulley 203 is fixedly installed at one end of the winding shaft 201, and a belt 204 is installed outside the pulley 203. During use, the second motor 202 is a servo motor and can rotate forward and backward. First, manually start the second motor 202 through the integrated control panel 13 to drive the winding shaft 201 to rotate, and make the winding shaft 201 on the other side rotate through the pulley 203 and the belt 204, so as to automatically wind the filter net 3.

[0033] As Figure 6 shown, the cleaning component 5 includes a U-shaped cleaning plate 501. The U-shaped cleaning plate 501 is inserted into the mounting hole 4 and connected to the purification tank 1 through positioning screws. Cleaning brushes 502 are symmetrically installed inside the U-shaped cleaning plate 501. One end of the cleaning brush 502 is in contact with the filter net 3. An air storage cavity 503 is opened inside one end of the U-shaped cleaning plate 501. Air outlet pipes 504 are linearly arrayed on one side of the U-shaped cleaning plate 501. One end of the air outlet pipe 504 is communicated with the air storage cavity 503. A second air delivery pipe 505 with a solenoid valve at one end is fixedly installed on one side of the purification tank 1. One end of the second air delivery pipe 505 is communicated with the air storage cavity 503. The other end of the second air delivery pipe 505 is communicated with the first air delivery pipe 804. A collection box 506 for collecting impurities is fixedly installed on one side of the U-shaped cleaning plate 501. During use, the cleaning brushes 502 inside the U-shaped cleaning plate 501 automatically brush the filter net 3. At the same time, the solenoid valve is opened, and air is delivered into the second air delivery pipe 505 through the first air delivery pipe 804. The air is delivered into the air storage cavity 503 through the second air delivery pipe 505, and then evenly sprayed onto the filter net 3 through the air outlet pipes 504, washing the impurities in the mesh holes of the filter net 3 into the collection box 506 for collection. There is no need to disassemble the filter net 3, which is convenient and fast, improving the cleaning efficiency. The air sprayed out by the air outlet pipes 504 is generated by the air pump 801. There is no need to use a new air supply device for air supply, saving resources and reducing costs. After the cleaning is completed, the collection box 506 is removed, the impurities inside are discharged, and finally the collection box 506 is reset.

[0034] As Figure 7As shown, the aeration assembly 8 includes an air pump 801 and an air delivery plate 803 with a first cavity 802 formed inside. The air delivery plate 803 is inserted on one side of the purification tank 1. The air delivery plate 803 is rotatably connected to the aeration stirring rod 6. The air pump 801 is fixedly installed on one side of the purification tank 1. A first air delivery pipe 804 is fixedly installed at the output end of the air pump 801. One end of the first air delivery pipe 804 is communicated with the first cavity 802. An air delivery cavity 805 is formed at one end of the aeration stirring rod 6. The air delivery cavity 805 is communicated with the first cavity 802 through a pipe. Air outlet holes 806 are linearly arrayed on the outer side of the aeration stirring rod 6. The air outlet holes 806 are communicated with the air delivery cavity 805. A waterproof breathable valve 807 is fixedly installed inside the air outlet holes 806. The air pump 801 is electrically connected to the integrated control panel 13. During use, manually start the air pump 801 and the first motor 15 through the integrated control panel 13. The generated air is delivered to the first cavity 802 of the air delivery plate 803 through the first air delivery pipe 804, then delivered to the air delivery cavity 805, and finally evenly delivered to the inside of the purification tank 1 through the air outlet holes 806 to aerate the sewage mixture, so that the flocculant is fully mixed with the sewage, accelerating the precipitation speed of the substances in the sewage.

[0035] As Figure 8 shown, the feeding assembly 9 includes a storage tank 901, a water pump 902, and a liquid delivery plate 904 with a second cavity 903 formed inside. The liquid delivery plate 904 is inserted on one side of the purification tank 1. The liquid delivery plate 904 is rotatably connected to the first stirring rod 7. The liquid delivery plate 904 is fixedly connected to the air delivery plate 803. The storage tank 901 is fixedly installed on one side of the purification tank 1. The water pump 902 is fixedly installed at the upper end of the storage tank 901. The water pump 902 is communicated with the inside of the storage tank 901 through a pipe. One end of the water pump 902 is communicated with the second cavity 903 through a pipe. The water pump 902 is electrically connected to the integrated control panel 13. A liquid delivery cavity 905 is formed at one end of the first stirring rod 7. The liquid delivery cavity 905 is communicated with the second cavity 903. Liquid outlet holes 906 are linearly arrayed on the outer side of the first stirring rod 7. The liquid outlet holes 906 are communicated with the liquid delivery cavity 905. A one-way valve 907 is fixedly installed inside the liquid outlet holes 906. During use, manually start the water pump 902 and the first motor 15 through the integrated control panel 13. The flocculant inside the storage tank 901 is delivered to the second cavity 903 of the liquid delivery plate 904 through a pipe, then delivered to the liquid delivery cavity 905, and finally evenly delivered to the inside of the purification tank 1 through the liquid outlet holes 906 to remove the pollutants in the sewage.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite water quality purification device for river sewage outlets, comprising a purification tank (1) with a support plate installed at one end, and a cover plate with a water inlet opened at one end is fixedly installed at the upper end of the purification tank (1), and is characterized in that: At the upper end inside the purification tank (1), a filter screen (3) is installed through a winding assembly (2). An installation hole (4) is provided at one end of the purification tank (1), and a cleaning assembly (5) for cleaning the filter screen (3) is installed in the installation hole (4). Aeration stirring rods (6) and a first stirring rod (7) distributed left and right are rotatably installed inside the purification tank (1). Stirring blades are arranged on the outer sides of the aeration stirring rods (6) and the first stirring rod (7). An aeration assembly (8) is installed at the upper end of one side of the purification tank (1). One end of the aeration assembly (8) is connected to the aeration stirring rod (6), and the aeration assembly (8) is linked with the cleaning assembly (5). A feeding assembly (9) is installed at the lower end of one side of the purification tank (1). One end of the feeding assembly (9) is connected to the first stirring rod (7). The purification tank (1) is connected to a sedimentation tank (10) through a pipeline. A square water outlet pipe (11) is fixedly installed at one end of the sedimentation tank (10), and an activated carbon plate (12) is installed inside the square water outlet pipe (11). An integrated control panel (13) is fixedly installed at one end of the purification tank (1).

2. The composite water quality purification equipment for river sewage outlets according to claim 1, characterized in that: Gears (14) are fixedly installed at one ends of the aeration stirring rod (6) and the first stirring rod (7). The gears (14) are meshed with each other. A first motor (15) is fixedly installed at the lower end of the purification tank (1). The output end of the first motor (15) is fixedly connected to the gear (14), and the first motor (15) is electrically connected to the integrated control panel (13).

3. The compound water quality purification equipment for river sewage outlets according to claim 1, characterized in that: A guide rod (16) is rotatably installed inside the purification tank (1), and one end of the guide rod (16) is in contact with the filter screen (3).

4. The composite water quality purification equipment for river sewage outlets according to claim 1, characterized in that: The winding assembly (2) includes a winding shaft (201) and a second motor (202). The winding shafts (201) are symmetrically installed inside the purification tank (1). One end of the filter screen (3) is wound on the winding shaft (201), and the other end of the filter screen (3) is fixedly connected to the winding shaft (201) on the other side. The second motor (202) is fixedly installed at one end of the purification tank (1). The output end of the second motor (202) is fixedly connected to the winding shaft (201), and the second motor (202) is electrically connected to the integrated control panel (13).

5. The composite water quality purification equipment for river sewage outlets according to claim 4, characterized in that: A pulley (203) is fixedly installed at one end of the winding shaft (201), and a belt (204) is installed on the outer side of the pulley (203).

6. The compound water quality purification equipment for river sewage outfalls according to claim 1, characterized in that: The aeration component (8) includes an air pump (801) and an air delivery plate (803) with a first cavity (802) formed inside. The air delivery plate (803) is inserted on one side of the purification tank (1), and the air delivery plate (803) is rotatably connected to the aeration stirring rod (6). The air pump (801) is fixedly installed on one side of the purification tank (1), and a first air delivery pipe (804) is fixedly installed at the output end of the air pump (801). One end of the first air delivery pipe (804) is communicated with the first cavity (802). An air delivery cavity (805) is formed at one end of the aeration stirring rod (6), and the air delivery cavity (805) is communicated with the first cavity (802) through a pipeline. Air outlet holes (806) are linearly arranged on the outer side of the aeration stirring rod (6), and the air outlet holes (806) are communicated with the air delivery cavity (805). A waterproof breathable valve (807) is fixedly installed inside the air outlet holes (806). The air pump (801) is electrically connected to the integrated control panel (13).

7. The river sewage outlet compound water purification device according to claim 6, characterized in that: The cleaning component (5) includes a U-shaped cleaning plate (501). The U-shaped cleaning plate (501) is inserted into the mounting hole (4) and connected to the purification tank (1) through positioning screws. Cleaning brushes (502) are symmetrically installed inside the U-shaped cleaning plate (501), and one end of the cleaning brushes (502) is in contact with the filter net (3). An air storage cavity (503) is formed inside one end of the U-shaped cleaning plate (501). Air outlet pipes (504) are linearly arranged on one side of the U-shaped cleaning plate (501), and one end of the air outlet pipes (504) is communicated with the air storage cavity (503). A second air delivery pipe (505) with a solenoid valve at one end is fixedly installed on one side of the purification tank (1). One end of the second air delivery pipe (505) is communicated with the air storage cavity (503), and the other end of the second air delivery pipe (505) is communicated with the first air delivery pipe (804).

8. The composite water quality purification equipment for river sewage outfall according to claim 7, characterized in that: A collection box (506) for collecting impurities is fixedly installed on one side of the U-shaped cleaning plate (501).

9. The composite water quality purification equipment for river sewage outlets according to claim 6, characterized in that: The feeding component (9) includes a storage tank (901), a water pump (902), and an infusion plate (904) with a second cavity (903) formed inside. The infusion plate (904) is inserted on one side of the purification tank (1), and the infusion plate (904) is rotatably connected to the first stirring rod (7). The infusion plate (904) is fixedly connected to the air delivery plate (803). The storage tank (901) is fixedly installed on one side of the purification tank (1), and the water pump (902) is fixedly installed at the upper end of the storage tank (901). The water pump (902) is communicated with the inside of the storage tank (901) through a pipeline. One end of the water pump (902) is communicated with the second cavity (903) through a pipeline. The water pump (902) is electrically connected to the integrated control panel (13).

10. The composite water quality purification equipment for river sewage outlets according to claim 9, characterized in that: One end of the first stirring rod (7) is provided with an infusion cavity (905), the infusion cavity (905) is communicated with the second cavity (903), liquid outlet holes (906) are linearly arrayed on the outer side of the first stirring rod (7), the liquid outlet holes (906) are communicated with the infusion cavity (905), and a one-way valve (907) is fixedly installed inside the liquid outlet holes (906).

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