Self-cleaning anti-blocking wastewater treatment agent feeding device

By introducing a cleaning mechanism consisting of a stirring shaft and a brush into the wastewater treatment agent dosing device, the problems of adhesion to the inner wall of the storage tank and pipe blockage were solved, achieving stability and continuity in wastewater treatment and improving treatment efficiency.

CN224548109UActive Publication Date: 2026-07-24QICAI (JIANGSU) ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QICAI (JIANGSU) ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-09-04
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing wastewater treatment agent dosing devices, wastewater treatment agent tends to adhere to the inner wall of the storage tank, resulting in a reduction in effective volume, affecting uniformity and flowability. Furthermore, large particulate impurities can easily clog the dosing pipes, affecting the continuity and stability of wastewater treatment.

Method used

The first motor drives the stirring shaft and brush body to clean the inner wall of the storage tank, while the second motor drives the brush rod and filter screen to clean the dispensing pipe to prevent clumping and blockage. Combined with a retractable flexible pipe and valve, the dispensing amount is precisely controlled.

Benefits of technology

It effectively prevents scaling on the inner wall of the storage tank, ensures the uniformity and fluidity of the treatment agent, prevents pipe blockage, ensures the continuity and stability of wastewater treatment, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224548109U_ABST
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Abstract

The utility model discloses a kind of self-cleaning anti-blocking wastewater treatment agent feeding devices, including storage tank and tank cover.The first motor of the self-cleaning anti-blocking wastewater treatment agent feeding device tank cover upper bolt connection is as power source, its output end is movably connected with stirring shaft, when the first motor starts operation, it will drive stirring shaft synchronous rotation;Fixed connecting shaft on stirring shaft rotates with it, and then drive the fixed rod of connecting shaft top end to do circular motion;Because the outer side of fixed rod is detachably connected with two groups of first brush body, which are distributed along the upper and lower staggered distribution of stirring shaft outer portion and with the inner wall of storage tank, so first brush body will rotate around shaft under the drive of stirring shaft, carry out comprehensive sweep to the inner wall of storage tank, can effectively prevent wastewater treatment agent from adhering to the inner wall of storage tank and gradually accumulated solidification, avoid effective volume reduction of storage tank due to inner wall scale, guarantee the cleaning and normal use of storage tank, maintain the feeding precision of treatment agent.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment agent dosing technology, specifically a self-cleaning and anti-clogging wastewater treatment agent dosing device. Background Technology

[0002] Industrial wastewater refers to wastewater and waste liquid generated during industrial production. It contains industrial production materials, by-products, and pollutants generated during production that are lost with the water. If discharged directly without treatment, it will seriously pollute the environment. Nowadays, the treatment method is usually to mix granular treatment agents with liquid treatment agents and then add them to the wastewater. This requires an industrial wastewater treatment agent dosing device. For example, the industrial wastewater treatment agent dosing device with application number CN202120603668.0 relates to the field of wastewater treatment technology. It includes a vehicle body, on which a dosing box is fixedly installed. Several agent tanks are fixedly installed on the upper wall of the dosing box. Each of the agent tanks is equipped with a dispensing pipe. A first solenoid valve is fixedly installed on the dispensing pipe. A liquid inlet is opened on the upper wall of the dosing box. The dispensing pipe passes through the liquid inlet. A through hole is opened in the center of the upper wall of the dosing box. A motor is fixedly installed on the upper wall of the dosing box. A rotating shaft is fixedly connected to the drive end of the motor. The rotating shaft passes through the through hole. However, existing wastewater treatment agent dosing devices still have certain problems in use: On the one hand, wastewater treatment agents easily adhere to the inner wall of the storage tank. Over time, these deposits will gradually accumulate and solidify, which not only reduces the effective volume of the storage tank but also affects the uniformity and flowability of the treatment agent, thereby interfering with the subsequent dosing process, resulting in inaccurate dosing and affecting the wastewater treatment effect. On the other hand, during the dosing process, large particles of impurities in the treatment agent can easily clog the dosing pipes and nozzles, causing poor dosing or even interruption, affecting the continuity and stability of wastewater treatment.

[0003] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0004] To address the aforementioned issues, an innovative design was implemented based on the existing wastewater treatment agent dosing device. Utility Model Content

[0005] The purpose of this invention is to provide a self-cleaning, anti-clogging wastewater treatment agent dispensing device to solve the problems mentioned in the background art. On the one hand, wastewater treatment agent easily adheres to the inner wall of the storage tank. Over time, these deposits gradually accumulate and solidify, which not only reduces the effective volume of the storage tank but also affects the uniformity and flowability of the treatment agent, thereby interfering with the subsequent dispensing process, resulting in inaccurate dispensing and affecting the wastewater treatment effect. On the other hand, during the dispensing process, large particulate impurities in the treatment agent easily clog the dispensing pipe and nozzle, causing poor dispensing or even interruption, affecting the continuity and stability of wastewater treatment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A self-cleaning, anti-clogging wastewater treatment agent dispensing device includes a storage tank and a tank cover. The tank cover is bolted to the top of the storage tank via flange bolts. A first motor is bolted to the top of the tank cover. A stirring shaft is movably connected to the output end of the first motor. A connecting shaft is fixed to the outer surface of the stirring shaft. A fixing rod is fixed to the top of the connecting shaft. A first brush body is detachably connected to the outer side of the fixing rod. A dispensing pipe is connected to the bottom of the storage tank. A nozzle is integrally provided at the top of the dispensing pipe. A frame is flanged to the outer surface of the nozzle. A filter screen is embedded in the middle of the frame. A mounting base is welded to the middle of the filter screen. A second motor is bolted to the outer side of the mounting base. A brush rod, interference-fitted with the output shaft of the second motor, passes through the middle of the mounting base. Three sets of second brush bodies are welded to the outer surface of the brush rod.

[0007] Using the above technical solution, the first motor drives the stirring shaft and the first brush body to stir and brush in the storage tank to prevent the treatment agent from clumping; the second motor drives the brush rod and the second brush body to rotate at the nozzle of the dispensing pipe, which works in conjunction with the filter screen to filter and remove blockages at the same time, realizing the self-cleaning of the wastewater treatment agent dispensing device, effectively preventing the device from clogging, ensuring stable dispensing of the treatment agent, and improving the wastewater treatment efficiency.

[0008] Preferably, a stirring paddle is fixedly installed on the outer surface of the stirring shaft, and the stirring paddle is spirally wrapped around the outer surface of the stirring shaft.

[0009] Using the above technical solution, the first motor drives the stirring shaft to rotate. Since the stirring paddle is fixed on the stirring shaft in a spiral shape, the rotation of the stirring shaft will drive the spiral stirring paddle to rotate together, thereby forming a specific stirring flow field in the storage tank. This can more fully stir the wastewater treatment agent in the storage tank, effectively prevent the treatment agent from settling and clumping, and ensure the uniformity and good flowability of the treatment agent so as to facilitate smooth delivery.

[0010] Preferably, two sets of the first brush bodies are staggered along the outside of the stirring shaft, and the outer surface of the first brush body is in close contact with the inner wall of the storage tank.

[0011] Using the above technical solution, the first motor drives the stirring shaft to rotate. Since the first brush body is fixed on the stirring shaft and fits against the inner wall of the storage tank, the rotation of the stirring shaft will drive the first brush body to make a circular motion around the shaft, thereby sweeping the inner wall of the storage tank. The two sets of first brush bodies, which are staggered, can thoroughly and thoroughly clean the wastewater treatment agent adhering to the inner wall of the storage tank, preventing it from accumulating and solidifying over a long period of time, ensuring the cleanliness and normal use of the storage tank, and maintaining the accuracy of the treatment agent dosing.

[0012] Preferably, the bottom of the storage tank is welded with a base, and the base includes four sets of support legs. The top of the tank cover is provided with a feed inlet, which is funnel-shaped.

[0013] Using the above technical solution, the four sets of support legs of the base are welded to the bottom of the storage tank to provide stable support for the storage tank; the funnel-shaped feed inlet uses its shape of being wider at the top and narrower at the bottom to guide the material to gather, making it convenient, quick and accurate to pour the wastewater treatment agent into the storage tank and avoid material spillage.

[0014] Preferably, the delivery pipe is a stretchable flexible pipe, and a valve is installed in the middle of the delivery pipe.

[0015] Using the above technical solution, the stretchable flexible pipe utilizes the flexibility and deformability of its own material to freely expand and contract within a certain range, making it convenient to flexibly adjust and install according to the actual installation space and the location of the wastewater treatment equipment; the valve changes the size of the flow cross section in the pipe by moving or rotating the internal valve core, thereby controlling the flow and flow rate of the fluid. The valve can precisely control the dosage and timing of the wastewater treatment agent, achieving on-demand dosing.

[0016] Preferably, a bearing is fixed inside the mounting base, and the outer surface of the brush rod is fixedly connected to the inner ring of the bearing. A sealing ring is embedded inside the mounting base and outside the bearing.

[0017] With the above technical solution, when the second motor drives the brush rod to rotate, the brush rod can rotate smoothly and with low friction under the support of the bearing by means of the fixed connection with the inner ring of the bearing, thus extending the service life of the brush rod and the motor; the sealing ring uses its own elasticity to fit tightly with the mounting base and the brush rod, preventing external impurities from entering and internal liquid from leaking.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the self-cleaning and anti-clogging wastewater treatment agent dosing device, 1. The first motor, bolted to the top of the tank lid, serves as the power source. Its output end is movably connected to the stirring shaft. When the first motor starts running, it drives the stirring shaft to rotate synchronously. The connecting shaft fixed on the stirring shaft rotates along with it, thereby driving the fixed rod at the top of the connecting shaft to make a circular motion. Since two sets of first brushes are detachably connected to the outside of the fixed rod, which are distributed vertically and vertically along the outside of the stirring shaft and are in contact with the inner wall of the storage tank, the first brushes will rotate around the shaft under the drive of the stirring shaft, and thoroughly sweep the inner wall of the storage tank. This can effectively prevent the wastewater treatment agent from adhering to the inner wall of the storage tank and gradually accumulating and solidifying, avoiding the reduction of the effective volume of the storage tank due to scale buildup on the inner wall, ensuring the cleanliness and normal use of the storage tank, and maintaining the accuracy of the treatment agent dosing. 2. The filter screen embedded in the nozzle frame can effectively filter large particulate impurities in the treatment agent, preventing them from clogging subsequent pipes or affecting the treatment effect. When the filter screen tends to become clogged, the second motor drives the brush rod to rotate smoothly under the support of the bearing, so that the three sets of second brushes can clean the filter screen in time, ensuring the continuous effectiveness of the filtration function. At the same time, the sealing ring on the outside of the bearing inside the mounting base can prevent the treatment agent from seeping into the inside of the mounting base, avoiding corrosion of bearings and other parts, extending the service life of the device, reducing maintenance costs, and ensuring long-term stable operation of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the main body of this utility model; Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model; Figure 3 This is a schematic diagram of the stirring paddle and the first brush body of this utility model; Figure 4 This is a schematic diagram of the connection structure between the filter screen and the nozzle of this utility model; Figure 5 This is a schematic diagram of the filter screen anti-clogging structure of this utility model.

[0020] In the diagram: 1. Storage tank; 2. Base; 3. Tank lid; 4. Feed inlet; 5. First motor; 6. Stirring shaft; 7. Stirring paddle; 8. Connecting shaft; 9. Fixing rod; 10. First brush body; 11. Dispensing pipe; 12. Nozzle; 13. Valve; 14. Frame; 15. Filter screen; 16. Mounting base; 17. Bearing; 18. Sealing ring; 19. Second motor; 20. Brush rod; 21. Second brush body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1 Please see Figure 2 , Figure 3 This utility model provides a technical solution: A self-cleaning, anti-clogging wastewater treatment agent dispensing device includes a storage tank 1 and a tank cover 3. The tank cover 3 is bolted to the top of the storage tank 1 via flange bolts. A first motor 5 is bolted to the top of the tank cover 3. A stirring shaft 6 is movably connected to the output end of the first motor 5. A connecting shaft 8 is fixed to the outer surface of the stirring shaft 6. A fixing rod 9 is fixed to the top of the connecting shaft 8. A first brush body 10 is detachably connected to the outer side of the fixing rod 9. Two sets of first brush bodies 10 are staggered vertically along the outside of the stirring shaft 6, and the outer surface of the first brush body 10 is in close contact with the inner wall of the storage tank 1.

[0023] This self-cleaning, anti-clogging wastewater treatment agent dispensing device uses a first motor 5 bolted to the top of the tank cover 3 as a power source. Its output end is movably connected to the stirring shaft 6. When the first motor 5 starts running, it drives the stirring shaft 6 to rotate synchronously. The connecting shaft 8 fixed on the stirring shaft 6 rotates together with it, thereby driving the fixed rod 9 at the top of the connecting shaft 8 to perform a circular motion. Since two sets of first brushes 10 are detachably connected to the outside of the fixed rod 9, which are staggered along the outside of the stirring shaft 6 and attached to the inner wall of the storage tank 1, the first brushes 10 will rotate around the shaft under the drive of the stirring shaft 6, thoroughly sweeping the inner wall of the storage tank 1. This effectively prevents the wastewater treatment agent from adhering to the inner wall of the storage tank 1 and gradually accumulating and solidifying, avoiding the reduction of the effective volume of the storage tank 1 due to scale buildup on the inner wall. At the same time, it ensures the uniformity and fluidity of the treatment agent, ensuring smooth subsequent dispensing and maintaining the long-term stable operation of the device. Furthermore, the detachable first brushes 10 facilitate replacement and maintenance after wear.

[0024] Example 2 Please see Figure 4 , Figure 5 This utility model provides a technical solution: The bottom of the storage tank 1 is connected to a dispensing pipe 11. A nozzle 12 is integrally installed at the top of the dispensing pipe 11. A flange is connected to a frame 14 on the outer surface of the nozzle 12. A filter screen 15 is embedded in the middle of the frame 14. A mounting base 16 is welded to the middle of the filter screen 15. A second motor 19 is bolted to the outer side of the mounting base 16. A brush rod 20, which is interference-fitted to the output shaft of the second motor 19, passes through the middle of the mounting base 16. Three sets of second brush bodies 21 are welded to the outer surface of the brush rod 20. The dispensing pipe 11 is a retractable flexible pipe, and a valve 13 is installed in the middle of the dispensing pipe 11. A bearing 17 is fixed inside the mounting base 16, and the outer surface of the brush rod 20 is fixedly connected to the inner ring of the bearing 17. A sealing ring 18 is embedded inside the mounting base 16, located outside the bearing 17.

[0025] This self-cleaning, anti-clogging wastewater treatment agent dosing device delivers the wastewater treatment agent from the storage tank 1 through a retractable flexible dosing pipe 11 connected at the bottom. Its retractable nature allows for flexible adjustment based on actual installation space and equipment location. A valve 13 installed in the middle precisely controls the dosage and timing of the treatment agent. When the treatment agent is sprayed through the nozzle 12 integrated at the top of the dosing pipe 11, a filter screen 15 embedded in the frame 14 connected to the flange on the outer surface of the nozzle 12 filters the treatment agent, preventing large particles from clogging subsequent pipes or affecting the treatment effect. When the filter screen 15... 5. When clogging occurs, the second motor 19, bolted to the outside of the mounting base 16, starts. Its output shaft drives the brush rod 20, which runs through the middle of the mounting base 16, to rotate smoothly under the support of the internal bearing 17 through an interference fit. The inner ring of the bearing 17 is fixed to the brush rod 20 to reduce rotational friction. The three sets of second brush bodies 21 welded to the outer surface of the brush rod 20 rotate accordingly to clean the filter screen 15. At the same time, the sealing ring 18 embedded on the outside of the bearing 17 inside the mounting base 16 can effectively prevent the treatment agent from seeping into the interior of the mounting base 16, avoid corroding the bearing 17 and other parts, and ensure the normal operation of the device.

[0026] Example 3 Please see Figures 1-3 This utility model provides a technical solution: A stirring paddle 7 is fixedly installed on the outer surface of the stirring shaft 6, and the stirring paddle 7 is spirally wrapped around the outer surface of the stirring shaft 6. A base 2 is welded to the bottom of the storage tank 1, and the base 2 includes four sets of support legs. A feed inlet 4 is provided above the tank cover 3, and the feed inlet 4 is funnel-shaped.

[0027] In this self-cleaning, anti-clogging wastewater treatment agent dispensing device, when the first motor 5, bolted to the top of the tank cover 3, is running, its output end drives the stirring shaft 6 to rotate. Since the stirring paddle 7 is fixedly installed on the outer surface of the stirring shaft 6 and spirals around it, the rotation of the stirring shaft 6 drives the spiral stirring paddle 7 to make circular motion. This spiral structure can form a three-dimensional and uniform stirring flow field in the storage tank 1, so that the wastewater treatment agent is fully mixed, effectively preventing its sedimentation and clumping, and ensuring the uniformity and good flowability of the treatment agent. The base 2, which includes four sets of support legs, welded to the bottom of the storage tank 1, uses the principle of triangular stability to provide stable support for the entire device, reducing the risk of shaking and tipping during operation. The funnel-shaped feed inlet 4 above the tank cover 3, with its shape being wider at the top and narrower at the bottom, can guide the material to naturally converge and fall smoothly into the tank when adding wastewater treatment agent to the storage tank 1, avoiding material spillage and improving the efficiency and accuracy of addition.

[0028] Working principle: In operation, the first motor 5 above the tank lid 3 starts, and its output drives the stirring shaft 6 to rotate. The connecting shaft 8 and the top fixing rod 9 fixed on the stirring shaft 6 then perform circular motion, causing the two sets of first brush bodies 10, which are attached to the inner wall of the storage tank 1 and are staggered vertically, to rotate around the axis, thoroughly brushing the inner wall of the storage tank 1. At the same time, the stirring shaft 6 drives the stirring paddle 7, which is spirally surrounding its outer surface, to rotate, forming a three-dimensional uniform stirring flow field inside the storage tank 1 to prevent the treatment agent from settling and clumping. The treatment agent is added to the storage tank 1 through the feed inlet 4, which has a funnel-shaped guide. The material falls smoothly into the storage tank 1; the four sets of support legs 2 welded to the bottom of the storage tank 1 provide stable support for the device; the treatment agent is transported through the retractable flexible dispensing tube 11, and the dispensing amount and time are controlled by the middle valve 13. When it is sprayed out through the nozzle 12, the filter screen 15 in the middle of the frame 14 filters the treatment agent. When the filter screen 15 tends to clog, the second motor 19 on the outside of the mounting base 16 starts, and its output shaft drives the brush rod 20 to rotate smoothly under the support of the bearing 17. The three sets of second brushes 21 on the brush rod 20 clean the filter screen 15, and the sealing ring 18 on the outside of the bearing 17 in the mounting base 16 prevents the treatment agent from seeping into and corroding the parts.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning, anti-clogging wastewater treatment agent dispensing device, comprising a storage tank (1) and a tank cover (3), characterized in that: The storage tank (1) is connected to a tank cover (3) via flange bolts. A first motor (5) is bolted to the top of the tank cover (3). A stirring shaft (6) is movably connected to the output end of the first motor (5). A connecting shaft (8) is fixed to the outer surface of the stirring shaft (6). A fixing rod (9) is fixed to the top of the connecting shaft (8). A first brush body (10) is detachably connected to the outside of the fixing rod (9). A feeding pipe (11) is connected to the bottom of the storage tank (1). The nozzle (12) is integrally provided at the top of the nozzle (12). The outer surface of the nozzle (12) is flanged and connected to a frame (14). A filter screen (15) is embedded in the middle of the frame (14). A mounting base (16) is welded to the middle of the filter screen (15). A second motor (19) is bolted to the outer side of the mounting base (16). A brush rod (20) that is interference-connected to the output shaft of the second motor (19) passes through the middle of the mounting base (16). Three sets of second brush bodies (21) are welded to the outer surface of the brush rod (20).

2. The wastewater treatment agent dosing device according to claim 1, characterized in that: A stirring paddle (7) is fixedly installed on the outer surface of the stirring shaft (6), and the stirring paddle (7) is spirally wrapped around the outer surface of the stirring shaft (6).

3. The wastewater treatment agent dosing device according to claim 1, characterized in that: Two sets of the first brush body (10) are staggered along the outside of the stirring shaft (6), and the outer surface of the first brush body (10) is in close contact with the inner wall of the storage tank (1).

4. The wastewater treatment agent dosing device according to claim 1, characterized in that: The bottom of the storage tank (1) is welded with a base (2), and the base (2) includes four sets of support legs. The top of the tank cover (3) is provided with a feed inlet (4), and the feed inlet (4) is funnel-shaped.

5. The wastewater treatment agent dosing device according to claim 1, characterized in that: The delivery pipe (11) is a retractable flexible pipe, and a valve (13) is installed in the middle of the delivery pipe (11).

6. The wastewater treatment agent dosing device according to claim 1, characterized in that: The mounting base (16) has a bearing (17) fixed inside, and the outer surface of the brush rod (20) is fixedly connected to the inner ring of the bearing (17). A sealing ring (18) is embedded inside the mounting base (16) and outside the bearing (17).