Sewage treatment agent spreading device for sewage treatment

Abstract

The present application relates to the technical fields of water pollution control and treatment, and discloses a sewage treatment agent spreading device for sewage treatment, which comprises a sewage pool, a working bridge fixedly connected to the top of the sewage pool, a dosing barrel fixedly connected to the top of the working bridge, a medicine delivery pipe rotatably connected to the bottom of the working bridge, a plurality of spray heads fixedly connected to the bottom of the medicine delivery pipe, and a drive box fixedly connected to the bottom of the working bridge; the circumferential outer surface of the medicine delivery pipe is fixedly connected with a wind pipe, the bottom of the working bridge is rotatably connected with a sleeve, the circumferential outer surface of the sleeve is fixedly connected with an impeller, and the bottom of the wind pipe is fixedly connected with an L-shaped air pipe. The sewage treatment agent spreading device for sewage treatment can effectively solve the problems in the prior art, such as uneven distribution of the medicament content on the overall surface of the sewage, the inability of the suspended matter and colloid in the area with less medicament content to be effectively destabilized, the excessive turbidity of the effluent, and the low sewage treatment effect.

Description

Technical Field

[0001] This invention relates to the field of water pollution control and treatment technology, specifically to a wastewater treatment agent application device for wastewater treatment. Background Technology

[0002] Wastewater treatment refers to environmental engineering projects that use physical, chemical, and biological technologies to separate, remove, or transform pollutants in wastewater to meet discharge standards or reuse requirements. In the wastewater treatment process, large floating objects and suspended solids are intercepted by screens, heavy particles such as sand are removed by grit chambers, and then the wastewater enters a primary sedimentation tank. Gravity settling removes approximately 50%-70% of suspended solids and about 30% of BOD (biochemical oxygen demand). This stage primarily focuses on physical separation to reduce the load on subsequent treatments. Activated sludge or biofilm processes are then used to degrade dissolved organic pollutants in the water through the metabolism of microorganisms. Typical processes include aeration tanks and secondary sedimentation tanks, which can remove over 90% of BOD and most suspended solids, simultaneously achieving nitrogen and phosphorus removal and effectively controlling the risk of eutrophication. Residual nitrogen, phosphorus, heavy metals, and pathogenic microorganisms are removed through coagulation sedimentation, filtration, and disinfection (ultraviolet or chlorine disinfection). If reuse is required, advanced treatment such as membrane filtration (e.g., ultrafiltration, reverse osmosis) is necessary to ensure the effluent meets reuse standards.

[0003] In the process of coagulation and sedimentation of sewage, coagulants (such as polyaluminum chloride, aluminum sulfate, ferric chloride, etc.) and coagulant aids (such as polyacrylamide) are usually added to the sewage. The coagulants destabilize colloidal particles in the water through hydrolysis, ionization and other actions, while the coagulant aids promote floc formation through adsorption and bridging. After the flocculation reaction is completed, the sewage enters the sedimentation tank. Under the action of gravity, the flocs gradually settle to the bottom of the tank and form a sludge layer. The supernatant flows out from the top of the tank, realizing solid-liquid separation.

[0004] Currently, existing wastewater treatment equipment requires dissolving and preparing a solution of a certain concentration before adding chemicals to the wastewater. This solution is then poured into a spreading device, which is started and uses multiple nozzles to evenly spread the solution onto the wastewater surface. However, because some dry powder chemicals are poured directly into the water, the surface chemicals quickly absorb water and form a hard shell, preventing the internal chemicals from fully contacting the water. This results in incomplete dissolution and clumping. Undissolved dry powder particles enter the nozzles of the wastewater treatment equipment with the solution, causing blockages in some nozzles. Consequently, the amount of chemicals applied to the overall wastewater surface is uneven. Areas with low chemical concentrations cannot effectively destabilize suspended solids and colloids, leading to excessive turbidity in the effluent and a decline in wastewater treatment efficiency. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a wastewater treatment agent application device for wastewater treatment, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a wastewater treatment agent application device for wastewater treatment, comprising: A wastewater tank has a working bridge fixedly connected to its top, a dosing cylinder fixedly connected to its top, a delivery pipe rotatably connected to its bottom, multiple nozzles fixedly connected to the bottom of the delivery pipe, and a drive box fixedly connected to the bottom of the working bridge. An air duct is fixedly connected to the outer circumference of the delivery pipe. A sleeve is rotatably connected to the bottom of the working bridge, an impeller is fixedly connected to the outer circumference of the sleeve, an L-shaped air pipe is fixedly connected to the bottom of the air duct, and the L-shaped air pipe is fixedly connected to the nozzles. A rotating plate is rotatably connected to the bottom of the inner wall of the dosing cylinder, a stirring rod is fixedly connected to the top of the rotating plate, and the top of the sleeve is fixedly connected to the rotating plate.

[0007] Furthermore, the spray head includes a spray cap and a nozzle, the spray cap and the nozzle being fixedly connected to the bottom of the delivery tube, the outer surface of the spray cap being provided with air holes, the spray cap being connected to an L-shaped air tube through the air holes, a rotating component being rotatably connected to the inner wall of the spray cap, and a sealing plate being fixedly connected to the bottom of the rotating component.

[0008] Furthermore, a gear is rotatably connected to the outer surface of the spray cap, a sliding gear is slidably connected to the outer surface of the delivery tube, and a pulley is rotatably connected to the top of the sliding gear.

[0009] Furthermore, a fixed guide rail is fixedly connected to the bottom of the working bridge. The fixed guide rail includes a first guide rail, a second guide rail, a third guide rail, and a fourth guide rail. The pulley is slidably connected inside the fixed guide rail.

[0010] Furthermore, a pin is slidably connected inside the nozzle, a telescopic rod is fixedly connected to the outer surface of the pin, a telescopic wheel is rotatably connected to the outer surface of the telescopic rod, an L-shaped slide rail is provided inside the nozzle, and the telescopic wheel is slidably connected inside the L-shaped slide rail.

[0011] Furthermore, the nozzle is internally slidably connected to a telescopic frame, the outer surface of which is provided with an inclined rail, and the telescopic wheel is slidably connected inside the inclined rail.

[0012] Furthermore, a lifting ring is fixedly connected to the top of the telescopic frame, and a telescopic spring is fixedly connected between the lifting ring and the nozzle.

[0013] Furthermore, a compression wheel is rotatably connected to the top of the lifting ring.

[0014] Furthermore, a rotating ring is fixedly connected to the top of the rotating component, and an extrusion strip is fixedly connected to the bottom of the rotating ring.

[0015] Furthermore, the extrusion bar includes a first spiral bar and a second spiral bar.

[0016] The technical solution provided by this invention has the following advantages compared with the prior art: 1. This invention utilizes a continuously rotating sleeve that drives a rotating plate and a stirring rod. The rotating stirring rod agitates the liquid in the dosing cylinder. When the dry powder comes into contact with the water surface, the outer layer quickly absorbs water and expands to form a gel-like hard shell, sealing the internal dry powder. A high-concentration solution film forms around the powder particles. When the film concentration approaches saturation, the dissolution rate drops sharply or even stops. The convection generated by stirring continuously carries away and dilutes the high-concentration film, while low-concentration fresh water continuously replenishes the particle surface. The particles are always in an unsaturated environment, and dissolution continues, thus promoting the full dissolution of the dry powder in the solution. This effectively prevents undissolved dry powder particles from entering the nozzle with the solution, causing partial nozzle blockage. Consequently, it ensures a uniform distribution of the powder content across the entire surface area of ​​the wastewater, improving the wastewater treatment effect.

[0017] 2. This invention controls the nozzle to intermittently spray downwards atomized droplets and jet-like liquid columns. The atomized liquid is evenly distributed on the surface of the wastewater, ensuring uniform coverage of the entire surface area. The jet-like liquid column creates a physical barrier layer by floating fallen leaves on the wastewater surface, preventing direct contact between the added agent and the wastewater. The jet-like liquid column, with its vertical downward impact, completely submerges the fallen leaves into the wastewater. Firstly, this improves the coverage and uniformity of the agent. After the leaves are submerged, the agent, which originally only acted on the surface of the leaves, is released and evenly diffused throughout the entire wastewater body. The agent is no longer confined to the limited area on top of the leaves but can cover a larger area of ​​water, achieving uniform distribution and significantly improving the treatment effect on pollutants. Secondly, it avoids waste of the agent. After spraying, the pesticide tends to remain on the surface of fallen leaves and cannot penetrate into the sewage. However, through the impact of the jet-like liquid column, the fallen leaves are pressed into the water, and the pesticide adhering to the surface of the leaves is "washed out" into the sewage. This ensures that the pesticide participates in the reaction to the maximum extent, reduces pesticide loss caused by adsorption by fallen leaves, and lowers operating costs.

[0018] 3. This invention uses a pin to clean and unclog the flow channels inside the nozzle. Even if the rotating stirring rod has fully dissolved the agent, there may still be trace amounts of suspended particles, fibrous impurities, or agent crystals deposited in the flow channels inside the nozzle. The pin actively cleans and unclogs the flow channels inside the nozzle, removing them before or at the initial stage of blockage, ensuring that the flow channels inside the nozzle are always unobstructed. The stirring rod solves the problem of "large particles," while the pin solves the problem of "micro-deposits." The two form a dual anti-clogging system with a combination of coarse and fine particles, further preventing nozzle blockage and ensuring a uniform distribution of agent content across the entire surface area of ​​the wastewater, thereby improving the wastewater treatment effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the dosing cartridge in an embodiment of the present invention; Figure 3 This is a schematic diagram of the stirring rod in an embodiment of the present invention; Figure 4 This is a schematic diagram of the fixed guide rail structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the drug delivery tube in an embodiment of the present invention; Figure 6 This is a schematic diagram of the sliding gear frame in an embodiment of the present invention; Figure 7 This is a schematic diagram of the nozzle structure in an embodiment of the present invention; Figure 8 This is a schematic diagram of the gear structure in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the telescopic spring in an embodiment of the present invention; Figure 10 This is a schematic diagram of the rotating ring structure in an embodiment of the present invention; Figure 11 This is a schematic diagram of the rotating component in an embodiment of the present invention; Figure 12 This is a schematic diagram of the sealing sheet structure in an embodiment of the present invention; Figure 13 This is a schematic diagram of the nozzle structure in an embodiment of the present invention; Figure 14This is a schematic diagram of the telescopic frame in an embodiment of the present invention; Figure 15 This is a schematic diagram of the structure of the L-shaped slide rail in an embodiment of the present invention; Figure 16 This is a schematic diagram of the ejector pin structure in an embodiment of the present invention; Figure 17 This is a schematic diagram of the telescopic wheel in an embodiment of the present invention.

[0021] The labels in the diagram represent: 1. Wastewater tank; 11. Working bridge; 12. Dosing cylinder; 13. Dosing pipe; 14. Nozzle; 15. Drive box; 2. Air duct; 21. Sleeve; 22. Impeller; 23. L-shaped air pipe; 24. Rotating plate; 25. Stirring rod; 3. Spray cap; 31. Nozzle; 32. Air hole; 33. Rotating component; 34. Sealing plate; 4. Gear; 41. Sliding gear frame; 42. Pulley; 4 3. Fixed guide rail; 431. First guide rail; 432. Second guide rail; 433. Third guide rail; 434. Fourth guide rail; 5. Ejector pin; 51. Telescopic rod; 52. Telescopic wheel; 53. L-shaped slide rail; 54. Telescopic frame; 55. Inclined rail; 56. Lifting ring; 57. Telescopic spring; 58. Extrusion wheel; 6. Rotating ring; 61. Extrusion strip; 611. First spiral strip; 612. Second spiral strip. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] The present invention will be further described below with reference to embodiments. Example 1:

[0024] Please see Figures 1-17 The present invention provides a technical solution: a wastewater treatment agent application device for wastewater treatment, comprising: Wastewater tank 1, with a working bridge 11 fixedly connected to the top of the wastewater tank 1, a dosing cylinder 12 fixedly connected to the top of the working bridge 11, a delivery pipe 13 rotatably connected to the bottom of the working bridge 11, multiple nozzles 14 fixedly connected to the bottom of the delivery pipe 13, and a drive box 15 fixedly connected to the bottom of the working bridge 11; an air duct 2 fixedly connected to the outer circumference of the delivery pipe 13, a sleeve 21 rotatably connected to the bottom of the working bridge 11, an impeller 22 fixedly connected to the outer circumference of the sleeve 21, an L-shaped air pipe 23 fixedly connected to the bottom of the air duct 2, the L-shaped air pipe 23 fixedly connected to the nozzles 14, a rotating plate 24 rotatably connected to the bottom of the inner wall of the dosing cylinder 12, a stirring rod 25 fixedly connected to the top of the rotating plate 24, and the top of the sleeve 21 fixedly connected to the rotating plate 24.

[0025] The nozzle 14 includes a spray cap 3 and a nozzle 31. The spray cap 3 and nozzle 31 are fixedly connected to the bottom of the delivery tube 13. The outer surface of the spray cap 3 is provided with air holes 32. The spray cap 3 is connected to the L-shaped air tube 23 through the air holes 32. A rotating component 33 is rotatably connected to the inner wall of the spray cap 3. A sealing plate 34 is fixedly connected to the bottom of the rotating component 33. A gear 4 is rotatably connected to the outer surface of the spray cap 3. A sliding gear frame 41 is slidably connected to the outer surface of the delivery tube 13. A pulley 42 is rotatably connected to the top of the sliding gear frame 41. A fixed guide rail 43 is fixedly connected to the bottom of the working bridge 11. The fixed guide rail 43 includes a first guide rail 431, a second guide rail 432, a third guide rail 433, and a fourth guide rail 434. The pulley 42 is slidably connected inside the fixed guide rail 43.

[0026] This application uses a gear 4 to drive a rotating component 33 to rotate around a spray cap 3. The rotating component 33 first drives the sealing plate 34 to rotate half a turn around the axis of the spray cap 3, so that the sealing plate 34 closes the air hole 32, and the nozzle 14 switches from spray mode to liquid column mode. Then the rotating component 33 drives the sealing plate 34 to rotate the remaining half turn around the axis of the spray cap 3, so that the sealing plate 34 opens the air hole 32, and the nozzle 14 switches from liquid column mode to spray mode.

[0027] A ejector pin 5 is slidably connected inside the nozzle 31. A telescopic rod 51 is fixedly connected to the outer surface of the ejector pin 5. A telescopic wheel 52 is rotatably connected to the outer surface of the telescopic rod 51. An L-shaped slide rail 53 is provided inside the nozzle 31, and the telescopic wheel 52 is slidably connected inside the L-shaped slide rail 53. A telescopic frame 54 is slidably connected inside the nozzle 31. An inclined rail 55 is provided on the outer surface of the telescopic frame 54, and the telescopic wheel 52 is slidably connected inside the inclined rail 55. A lifting ring 56 is fixedly connected to the top of the telescopic frame 54, and a telescopic spring 57 is fixedly connected between the lifting ring 56 and the nozzle 31. An extrusion wheel 58 is rotatably connected to the top of the lifting ring 56. A rotating ring 6 is fixedly connected to the top of the rotating component 33, and an extrusion strip 61 is fixedly connected to the bottom of the rotating ring 6. The extrusion strip 61 includes a first spiral strip 611 and a second spiral strip 612.

[0028] This application sets up a telescopic wheel 52 to move from one end of an L-shaped slide rail 53 to the other end, and then the telescopic wheel 52 moves from the other end of the L-shaped slide rail 53 to one end. During this process, the telescopic wheel 52 drives the ejector pin 5 through the telescopic rod 51 to clean and unclog the flow channel inside the nozzle 31. If there are trace suspended particles, fibrous impurities or drug crystals in the liquid and they are deposited in the flow channel inside the nozzle 31, the ejector pin 5 actively cleans and unclogs the flow channel inside the nozzle 31, removing them before or at the beginning of the blockage, ensuring that the flow channel inside the nozzle 31 is always unobstructed. The stirring rod 25 solves the problem of "large particles", and the ejector pin 5 solves the problem of "micro-deposition". The two form a dual anti-clogging system with a combination of coarse and fine particles.

[0029] Working principle: First step: In practical applications, such as Figure 1 , Figure 2 and Figure 3 As shown, an appropriate amount of water is added to the dosing cylinder 12, and the dry powder medicine is slowly and evenly sprinkled into the water. The dry powder medicine dissolves in the water, making it into a medicine solution of a certain concentration. The medicine solution is delivered into the dosing pipe 13 by a metering pump. By controlling the drive box 15, the drive box 15 drives the dosing pipe 13 to rotate at a constant speed around the axis of the dosing pipe 13 at the bottom of the working bridge 11. At the same time, the drive box 15 drives the sleeve 21 to rotate at a constant speed around the axis of the sleeve 21 at the bottom of the working bridge 11. Under the pressure of the metering pump, the medicine solution inside the dosing pipe 13 is delivered downward to the inside of the nozzle 14. At the same time, the rotating sleeve 21 drives the impeller 22 on its outer circumference to rotate around the axis of the sleeve 21. The rotation of the impeller 22 generates negative pressure at the top of the air duct 2, drawing the surrounding air into the air duct 2. The air gains kinetic energy under the action of the impeller 22, and the impeller 22 pushes the air downward to accelerate. Accelerated air moves from the bottom of the air duct 2 into the interior of the L-shaped air pipe 23. The moving air moves through the L-shaped air pipe 23 and the air hole 32 into the interior of the spray cap 3. The moving airflow moves downward between the spray cap 3 and the nozzle 31, forming a directional airflow. When the gas passes through the narrow opening at the bottom of the spray cap 3, the narrow opening at the bottom of the spray cap 3 compresses the air, and the gas is quickly ejected at the nozzle. Under the pressure of the metering pump, the liquid medicine is ejected downward through the internal flow channel of the nozzle 31, so that the liquid medicine ejected from the nozzle 31 is torn into small particles by the high-speed airflow and ejected, thereby achieving the effect of liquid medicine atomization. As the delivery pipe 13 continues to rotate, the rotating delivery pipe 13 drives the multiple nozzles 14 at its bottom to rotate around the axis of the delivery pipe 13. As the multiple nozzles 14 continue to rotate, the multiple rotating nozzles 14 spray the atomized liquid medicine evenly on the surface of the sewage, ensuring that the liquid medicine evenly covers the entire area of ​​the sewage surface.

[0030] As a further embodiment of the present invention, as the sleeve 21 continues to rotate, the sleeve 21 drives the rotating plate 24 at its top to rotate around the axis of the dosing cylinder 12. The rotating plate 24 drives the stirring rod 25 at its top to rotate around the axis of the dosing cylinder 12. The rotating stirring rod 25 disturbs the liquid in the dosing cylinder 12. After the dry powder agent comes into contact with the water surface, the outer layer quickly absorbs water and expands to form a gel-like hard shell, sealing the dry powder inside. A high-concentration solution film will form around the agent particles. When the film concentration is close to saturation, the dissolution rate drops sharply or even stops. The convection generated by stirring causes the high-concentration film to be continuously carried away and diluted. Low-concentration fresh water is continuously replenished to the particle surface. The particles are always in an unsaturated environment, and dissolution continues, thereby promoting the full dissolution of the dry powder agent in the solution. This effectively prevents undissolved dry powder particles from entering the nozzle 14 with the solution, causing some nozzles 14 to become blocked. This ensures that the agent content is evenly distributed in the overall area of ​​the sewage surface and improves the sewage treatment effect.

[0031] Second process: In practical applications, during autumn, a large number of fallen leaves enter the interior of sewage tank 1 with rainwater or wind. The fallen leaves cover the surface of the sewage, forming a physical barrier that hinders the full contact between the agent and the sewage, reduces the coverage and uniformity of the agent application, and thus affects the treatment effect of the agent on pollutants.

[0032] To overcome the above difficulties, this application adopts the following technical solution: like Figure 4 , Figure 5 and Figure 6As shown, as the delivery tube 13 continues to rotate around its axis, the delivery tube 13 drives the sliding gear 41 on its outer surface to rotate around its axis. The sliding gear 41 then drives the pulley 42 at its top to rotate around its axis. Since the pulley 42 is slidably connected inside the fixed guide rail 43, during the rotation of the pulley 42 around the axis of the delivery tube 13, the pulley 42 first sequentially slides with the first guide rail 431, the second guide rail 432, the third guide rail 433, and the fourth guide rail 434, and then sequentially connects with the fourth guide rail 434, the third guide rail 433, and the second guide rail 432. The sliding gear 41 is slidably connected to the first guide rail 431, so that the pulley 42 first pushes the sliding gear 41 gradually closer to the air duct 2 along the outer surface of the drug delivery pipe 13. Then, the pulley 42 pushes the sliding gear 41 gradually away from the air duct 2 along the outer surface of the drug delivery pipe 13. Thus, as the drug delivery pipe 13 continues to rotate, the sliding gear 41 slides back and forth along the outer surface of the drug delivery pipe 13. The sliding gear 41 meshes with each gear 4 in sequence. When the sliding gear 41 meshes with the gear 4 through its own teeth, the sliding gear 41 drives the gear 4 to rotate around the axis of the gear 4 for one revolution. The gear 4 drives the rotating part 33 to rotate around the spray cap 3. When the axis of the nozzle 14 rotates one revolution, the rotating part 33 drives the sealing plate 34 at its bottom to rotate half a revolution around the axis of the spray cap 3. At this time, the sealing plate 34 seals the air hole 32 on the inner wall of the spray cap 3. At this time, there is no rapid airflow inside the nozzle 14. Under the pressure of the metering pump, the flowing liquid is sprayed vertically downward along the flow channel of the nozzle 31. The liquid is sprayed out at high speed through the nozzle under the action of pressure difference. The nozzle diameter is small. Under the action of fluid dynamics and surface tension, the liquid maintains a relatively concentrated columnar shape, forming a jet-like liquid column. This jet-like liquid column strikes the upper surface of the fallen leaves vertically downward. The fallen leaves floating on the surface of the sewage are then... The impact of the jet-like liquid column completely submerges the upper surface of the fallen leaves in the sewage, ensuring that the pesticide adhering to the leaf surface is fully submerged. This prevents the leaves from obstructing sufficient contact between the pesticide and the sewage. The leaves float on the sewage surface, forming a physical barrier layer. This keeps the added pesticide "suspended" above the leaves, preventing direct contact with the sewage below. The jet-like liquid column, with its vertical downward impact, completely presses the leaves into the sewage, thoroughly breaking down the physical barrier between the leaves and the sewage surface. This restores the direct contact channel between the pesticide and the sewage, thus improving the coverage and uniformity of the pesticide. After the fallen leaves are submerged, the pesticide solution, which originally only acted on the surface of the leaves, is released and evenly diffused throughout the entire wastewater body. The pesticide is no longer confined to the limited area at the top of the leaves but can cover a larger area of ​​water, achieving uniform distribution and significantly improving the treatment effect on pollutants. Secondly, it avoids pesticide waste. After spraying, the pesticide easily remains on the surface of the fallen leaves and cannot penetrate into the wastewater. Through the impact of the jet-like liquid column, the fallen leaves are pressed into the water, and the pesticide adhering to the surface of the leaves is "washed out" into the wastewater, ensuring that the pesticide participates in the reaction to the maximum extent and reducing the pesticide loss caused by adsorption by the fallen leaves.This reduced operating costs.

[0033] As a further embodiment of the present invention, during the process of the gear 4 driving the rotating member 33 to rotate around the axis of the spray cap 3, the rotating member 33 first drives the sealing plate 34 to rotate half a turn around the axis of the spray cap 3, so that the sealing plate 34 closes the air hole 32, and the nozzle 14 switches from the spray mode to the liquid column mode. Then the rotating member 33 drives the sealing plate 34 to rotate the remaining half turn around the axis of the spray cap 3, so that the sealing plate 34 opens the air hole 32, and the nozzle 14 switches from the liquid column mode to the spray mode.

[0034] Third process: In practical applications, such as Figure 9 , Figure 10 and Figure 11As shown, during the rotation of the rotating component 33 around the axis of the nozzle 31, the rotating component 33 drives the rotating ring 6 at its top to rotate around the axis of the nozzle 31. The rotating ring 6 drives the first spiral 611 and the second spiral 612 at its bottom to rotate around the axis of the nozzle 31. The rotating first spiral 611 pushes the extrusion wheel 58 and the lifting ring 56 to move vertically downward. The lifting ring 56 drives the telescopic frame 54 at its bottom to move vertically downward. The telescopic frame 54 drives the inclined rail 55 on its outer surface to move vertically downward. Since the telescopic wheel 52 is slidably connected inside the L-shaped slide rail 53, the downward-moving telescopic frame 54 pushes the telescopic wheel 52 along the L-shaped slide rail 53 via the inclined rail 55. The horizontal section of the slide rail 53 moves towards the vertical section. Then, the telescopic wheel 52 moves to the top of the vertical section of the L-shaped slide rail 53. The downward-moving telescopic frame 54, via the inclined rail 55, drives the telescopic wheel 52 downwards along the vertical section of the L-shaped slide rail 53. Once the telescopic wheel 52 reaches the bottom of the vertical section of the L-shaped slide rail 53, the rotating ring 6 drives the second spiral 612 to contact the compression wheel 58, releasing the compression effect of the first spiral 611 on the compression wheel 58 and the lifting ring 56. Under the elastic action of the telescopic spring 57, the telescopic spring 57 pushes the lifting ring 56 vertically upwards. The lifting ring 56 drives the telescopic frame 54 vertically upwards, towards... The telescopic frame 54, moving upwards, drives the telescopic wheel 52 to move vertically upwards along the vertical section of the L-shaped slide rail 53 via the inclined rail 55. Once the telescopic wheel 52 reaches the top of the vertical section of the L-shaped slide rail 53, the upward-moving telescopic frame 54, via the inclined rail 55, drives the telescopic wheel 52 to gradually move away from the vertical section of the L-shaped slide rail 53 along the horizontal section. In this way, as the rotating component 33 rotates one revolution around the axis of the nozzle 31, the telescopic wheel 52 first moves along one end of the L-shaped slide rail 53 to the other end, and then moves along the other end of the L-shaped slide rail 53 to one end. During this process, the telescopic wheel 52 drives the ejector pin 5 to the nozzle 31 via the telescopic rod 51. The internal flow channels of nozzle 31 are cleaned and unblocked. Even if the rotating stirring rod 25 has fully dissolved the agent, there are still trace amounts of suspended particles, fibrous impurities, or agent crystals deposited in the internal flow channels of nozzle 31. The ejector pin 5 actively cleans and unblocks the internal flow channels of nozzle 31, removing them before or at the initial stage of blockage, ensuring that the internal flow channels of nozzle 31 are always unobstructed. The stirring rod 25 solves the problem of "large particles", while the ejector pin 5 solves the problem of "micro-deposits". The two form a dual anti-clogging system with a combination of coarse and fine particles, further preventing the nozzle 14 from clogging, thereby ensuring a uniform distribution of agent content on the overall surface area of ​​the sewage and improving the sewage treatment effect.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wastewater treatment agent application device for wastewater treatment, comprising a wastewater tank (1), characterized in that: The top of the sewage tank (1) is fixedly connected to a working bridge (11), the top of the working bridge (11) is fixedly connected to a dosing cylinder (12), the bottom of the working bridge (11) is rotatably connected to a delivery pipe (13), the bottom of the delivery pipe (13) is fixedly connected to multiple nozzles (14), and the bottom of the working bridge (11) is fixedly connected to a drive box (15). The outer circumference of the delivery tube (13) is fixedly connected to the air duct (2), the bottom of the working bridge (11) is rotatably connected to the sleeve (21), the outer circumference of the sleeve (21) is fixedly connected to the impeller (22), the bottom of the air duct (2) is fixedly connected to the L-shaped air pipe (23), the L-shaped air pipe (23) is fixedly connected to the nozzle (14), the bottom of the inner wall of the dosing cylinder (12) is rotatably connected to the rotating plate (24), the top of the rotating plate (24) is fixedly connected to the stirring rod (25), and the top of the sleeve (21) is fixedly connected to the rotating plate (24).

2. The wastewater treatment agent application device according to claim 1, characterized in that: The nozzle (14) includes a spray cap (3) and a nozzle (31). The spray cap (3) and the nozzle (31) are fixedly connected to the bottom of the delivery tube (13). The outer surface of the spray cap (3) is provided with an air hole (32). The spray cap (3) is connected to an L-shaped air tube (23) through the air hole (32). A rotating part (33) is rotatably connected to the inner wall of the spray cap (3). A sealing plate (34) is fixedly connected to the bottom of the rotating part (33).

3. The wastewater treatment agent application device for wastewater treatment according to claim 2, characterized in that: The outer surface of the spray cap (3) is rotatably connected to a gear (4), the outer surface of the delivery tube (13) is slidably connected to a sliding gear frame (41), and the top of the sliding gear frame (41) is rotatably connected to a pulley (42).

4. The wastewater treatment agent application device for wastewater treatment according to claim 3, characterized in that: The bottom of the working bridge (11) is fixedly connected to a fixed guide rail (43), which includes a first guide rail (431), a second guide rail (432), a third guide rail (433) and a fourth guide rail (434). The pulley (42) is slidably connected inside the fixed guide rail (43).

5. A wastewater treatment agent application device according to claim 2, characterized in that: The nozzle (31) is slidably connected to a pin (5), and a telescopic rod (51) is fixedly connected to the outer surface of the pin (5). A telescopic wheel (52) is rotatably connected to the outer surface of the telescopic rod (51). An L-shaped slide rail (53) is provided inside the nozzle (31), and the telescopic wheel (52) is slidably connected inside the L-shaped slide rail (53).

6. The wastewater treatment agent application device for wastewater treatment according to claim 5, characterized in that: The nozzle (31) is slidably connected to a telescopic frame (54), and the outer surface of the telescopic frame (54) is provided with a sloping rail (55). The telescopic wheel (52) is slidably connected to the inside of the sloping rail (55).

7. A wastewater treatment agent application device according to claim 6, characterized in that: The top of the telescopic frame (54) is fixedly connected to a lifting ring (56), and a telescopic spring (57) is fixedly connected between the lifting ring (56) and the nozzle (31).

8. A wastewater treatment agent application device according to claim 7, characterized in that: The top of the lifting ring (56) is rotatably connected to a compression wheel (58).

9. A wastewater treatment agent application device according to claim 2, characterized in that: The top of the rotating component (33) is fixedly connected to a rotating ring (6), and the bottom of the rotating ring (6) is fixedly connected to an extrusion strip (61).

10. A wastewater treatment agent application device according to claim 9, characterized in that: The extrusion bar (61) includes a first spiral bar (611) and a second spiral bar (612).

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