A chemical dosing device for wastewater treatment

By incorporating a stirring rod and scraper into the drug additive unit, combined with the magnetic attraction function of the electromagnet protective cover, the problem of drug adhesion to sediment is solved, achieving uniform mixing of drugs and water and convenient cleaning of the equipment, thus improving the efficiency and safety of the equipment.

CN224279887UActive Publication Date: 2026-05-26NANJING ZHONGDE ENVIRONMENTAL PROTECTION EQUIP MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-05-26

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Abstract

This utility model discloses a chemical additive for wastewater treatment, relating to the field of wastewater treatment technology. It includes an additive body, with a first connecting block installed at the bottom inner side of the additive body. A stirring rod is rotatably connected to the top of the first connecting block, and a second connecting block is fixedly connected to the top of the stirring rod. A connecting rod is fixedly connected to the outer side of the stirring rod. Using this structure, the additive can easily add chemicals or water through the inlet. Then, the drive motor is started, and the drive motor drives the stirring rod to rotate via the second connecting block, thus uniformly mixing the chemicals and water. During the rotation of the stirring rod, the connecting rod can drive a scraper to rotate as well, allowing the scraper to slide along a first groove on the inner wall of the additive body, scraping off any adhering objects. This facilitates treatment without affecting the subsequent normal use of the additive body.
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Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to a chemical additive for wastewater treatment. Background Technology

[0002] With the continuous improvement of living standards and the continuous expansion of the population, the amount of domestic sewage will also increase. Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. This is done by adding chemical reagents. Existing chemical reagents are mainly divided into flocculating, binding, drag-reducing and thickening agents. These chemical reagents have made significant contributions to sewage treatment engineering. In the early stage of the reaction of adding coagulants, it is necessary to increase the chance of contact between the reagent and the sewage as much as possible and increase the flow rate to increase the chance of collision of particles in the water and cause flocs to aggregate. The equipment commonly used in this field is the chemical additive.

[0003] Chinese patent with announcement number "CN219823809U" discloses a chemical additive for wastewater treatment, including an additive body, a motor, and a movable block. The motor is installed at the upper end of the additive body. The bottom ring is fixedly connected to the lower end of the additive body. The movable block is movably connected to the middle of the bottom ring. In this invention, the bottom ring stabilizes the entire structure, while the screw sleeve clamps the edge of the wastewater tank.

[0004] However, this device still has some shortcomings. When using the drug additive, the water inside the additive contains some drugs and sediment. These drugs and sediments have a certain degree of adhesion. When dispensing, some sediment or adhesive drugs will stick to the inner wall of the additive. This is not only difficult to handle, but also affects the subsequent use of the additive. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a chemical additive for wastewater treatment to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A wastewater treatment chemical additive includes an additive body. A first connecting block is installed at the bottom inner side of the additive body. A stirring rod is rotatably connected to the top of the first connecting block. A second connecting block is fixedly connected to the top of the stirring rod. A connecting rod is fixedly connected to the outer side of the stirring rod. A scraper is slidably connected to the inner wall of the additive body. A first groove matching the scraper is formed on the inner wall of the additive body. The scraper is slidably connected to the inner wall of the additive body through the first groove. One side of the connecting rod is slidably connected to the other side of the scraper. A protective cover is adsorbed and connected to the top of the additive body. The protective cover covers the top of the additive body. A mounting shell is fixedly connected to the top of the protective cover. A drive motor is installed inside the mounting shell. The rotating shaft of the drive motor is engaged with the top of the second connecting block. A feed block is fixedly connected to the top of the protective cover. A feed port is formed at the top of the feed block and communicates with the inner side of the additive body.

[0008] As a preferred technical solution, a second groove matching the connecting rod is provided on the other side of the scraper, and the connecting rod is slidably connected to one side of the scraper through the second groove.

[0009] As a preferred technical solution, the top of the device body is provided with a groove, an electromagnet is fixedly connected to the inside of the groove, the electromagnet covers the inside of the groove, the bottom of the protective cover is in contact with the top of the electromagnet, the part where the protective cover is in contact with the electromagnet is made of magnetic material, and a handle is fixedly connected to the top of the protective cover. The handle is concave in shape and the corners of the handle are arc-shaped.

[0010] As a preferred technical solution, a sealing groove is provided at the top of the adder body, and a sealing ring that matches the sealing groove is fixedly connected to the bottom of the protective cover, with the sealing ring covering the inner side of the sealing groove.

[0011] As a preferred technical solution, the top of the protective cover has a rectangular opening that communicates with the inside of the additive body. A transparent glass is fixedly connected to the inside of the rectangular opening, and the transparent glass covers the inside of the rectangular opening.

[0012] As a preferred technical solution, a limiting frame is fixedly connected to the bottom of the device body, and a rubber pad is fixedly connected to the inner side of the limiting frame. The rubber pad covers the inner side of the limiting frame, and the position of the bottom end of the rubber pad is on the same horizontal line as the position of the bottom end of the limiting frame.

[0013] As a preferred technical solution, a connecting pipe is fixedly connected to the outside of the additive body, the connecting pipe is connected to the inside of the additive body, a drug outlet ring is provided on the front side of the connecting pipe, the drug outlet ring is connected to the connecting pipe, and a pull rod is provided at the top of the drug outlet ring.

[0014] In summary, the present invention has the following main advantages:

[0015] First, during use, the medicine or water can be added through the feed port. Then, the drive motor is started. The drive motor can drive the stirring rod to rotate through the second connecting block, so that the medicine and water can be mixed evenly. During the rotation of the stirring rod, its connecting rod can drive the scraper to rotate together, so that the scraper can slide along the first slide groove on the inner wall of the adder body, so as to scrape off the objects adhering to the inner wall of the adder body. This facilitates the treatment of the objects and does not affect the normal use of the adder body in the future.

[0016] Secondly, the presence of the electromagnet effectively attracts the protective cover, preventing it from shifting. When the protective cover needs to be removed later, simply turn off the electromagnet to pull it out directly, making it easier for the user to observe the inside of the additive body. When the inside of the additive body needs to be cleaned later, the stirring rod is pulled upward through the first connecting block, and the connecting rod can be pulled upward along the second slide groove, thus allowing the entire stirring rod to be pulled out, facilitating the cleaning of the inside of the additive body later. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the additive body of this utility model;

[0019] Figure 3 This is a top view of the additive body of this utility model;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the protective cover of this utility model;

[0021] Figure 5 This is a schematic diagram of the bottom structure of the additive body of this utility model.

[0022] Reference numerals: 1. Adding device body; 2. First connecting block; 3. Stirring rod; 4. Second connecting block; 5. Connecting rod; 6. Scraper; 7. First chute; 8. Second chute; 9. Groove; 10. Electromagnet; 11. Sealing groove; 12. Protective cover; 13. Handle; 14. Rectangular opening; 15. Transparent glass; 16. Mounting shell; 17. Feeding block; 18. Feeding port; 19. Sealing ring; 20. Drive motor; 21. Limiting frame; 22. Rubber pad; 23. Connecting pipe; 24. Discharge ring; 25. Pull rod. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 5This embodiment of a wastewater treatment chemical additive includes an additive body 1. A first connecting block 2 is installed at the bottom inner side of the additive body 1. A stirring rod 3 is rotatably connected to the top of the first connecting block 2. A second connecting block 4 is fixedly connected to the top of the stirring rod 3. A connecting rod 5 is fixedly connected to the outer side of the stirring rod 3. A scraper 6 is slidably connected to the inner wall of the additive body 1. A first groove 7 matching the scraper 6 is formed on the inner wall of the additive body 1. The scraper 6 is slidably connected to the inner wall of the additive body 1 through the first groove 7. One side of the connecting rod 5 is slidably connected to the other side of the scraper 6. A protective cover 12 is adsorbed and connected to the top of the additive body 1, covering the top of the additive body 1. A mounting shell 16 is fixedly connected to the top of the protective cover 12. A drive motor 20 is installed inside the mounting shell 16. The rotating shaft of 0 is snapped onto the top of the second connecting block 4. The top of the protective cover 12 is fixedly connected to the feed block 17. The top of the feed block 17 has a feed port 18, which is connected to the inside of the additive body 1. During use, the feed port 18 facilitates the addition of medicine or water that needs to be treated. When mixing is required, the drive motor 20 is started. The drive motor 20 can drive the stirring rod 3 to rotate through the second connecting block 4, thereby uniformly mixing the medicine and water. During the rotation of the stirring rod 3, its connecting rod 5 can drive the scraper 6 to rotate together, thereby allowing the scraper 6 to slide along the first sliding groove 7 on the inner wall of the additive body 1, so as to scrape off the objects adhering to the inner wall of the additive body 1. This facilitates the treatment without affecting the normal use of the additive body 1.

[0025] refer to Figures 1 to 3 The other side of the scraper 6 is provided with a second groove 8 that matches the connecting rod 5. The connecting rod 5 is slidably connected to one side of the scraper 6 through the second groove 8. When it is necessary to clean the inside of the additive body 1 later, the stirring rod 3 is pulled upward through the first connecting block 2, and the connecting rod 5 can be pulled upward along the second groove 8, so that the entire stirring rod 3 can be pulled out to facilitate the later cleaning of the inside of the additive body 1.

[0026] refer to Figures 1 to 4 The top of the additive body 1 has a groove 9, and an electromagnet 10 is fixedly connected to the inner side of the groove 9. The electromagnet 10 covers the inner side of the groove 9. The bottom end of the protective cover 12 is in contact with the top end of the electromagnet 10. The part of the protective cover 12 that is in contact with the electromagnet 10 is made of magnetic material. The top end of the protective cover 12 is fixedly connected to a handle 13. The handle 13 is concave in shape and the corners of the handle 13 are arc-shaped. Due to the presence of the electromagnet 10, the protective cover 12 can be effectively attracted to prevent it from shifting. When the protective cover 12 needs to be removed later, the electromagnet 10 can be turned off and the handle 13 can be used to pull it open directly, thereby improving the safety protection of the additive body 1.

[0027] refer to Figure 3 and Figure 4 The top of the adder body 1 is provided with a sealing groove 11, and the bottom of the protective cover 12 is fixedly connected with a sealing ring 19 that matches the sealing groove 11. The sealing ring 19 covers the inner side of the sealing groove 11. Due to the presence of the sealing ring 19, the contact point between the protective cover 12 and the adder body 1 can be effectively sealed, which can effectively improve the overall sealing and protection of the adder body 1.

[0028] refer to Figure 1 The top of the protective cover 12 has a rectangular opening 14, which communicates with the inside of the adder body 1. A transparent glass 15 is fixedly connected to the inside of the rectangular opening 14, and the transparent glass 15 covers the inside of the rectangular opening 14. Because of the opening of the rectangular opening 14, the user can directly look at the inside of the adder body 1 through the transparent glass 15 without opening the protective cover 12, which is conducive to the user observing the operation status of the adder body 1 at all times.

[0029] refer to Figure 5 The bottom of the additive body 1 is fixedly connected to a limiting frame 21. A rubber pad 22 is fixedly connected to the inner side of the limiting frame 21. The rubber pad 22 covers the inner side of the limiting frame 21. The bottom of the rubber pad 22 is on the same horizontal line as the bottom of the limiting frame 21. Due to the presence of the rubber pad 22, which is made of rubber, it has good anti-slip ability and rubber shock absorption ability, thereby effectively improving the stability of the additive body 1 when it is placed.

[0030] refer to Figure 1 A connecting pipe 23 is fixedly connected to the outside of the additive body 1. The connecting pipe 23 communicates with the inside of the additive body 1. A drug outlet ring 24 is provided on the front side of the connecting pipe 23. The drug outlet ring 24 communicates with the connecting pipe 23. A pull rod 25 is provided at the top of the drug outlet ring 24. Due to the presence of the connecting pipe 23, the water source is facilitated to flow out, so as to guide the drug in the additive body 1 into the drug outlet ring 24.

[0031] Operating principle and advantages: During use, the opening of the feed inlet 18 facilitates the addition of medicines or water sources requiring treatment. When mixing is required, the drive motor 20 is started. The drive motor 20 drives the stirring rod 3 to rotate via the second connecting block 4, thereby uniformly mixing the medicines and water. During the rotation of the stirring rod 3, its connecting rod 5 drives the scraper 6 to rotate together, allowing the scraper 6 to slide along the first sliding groove 7 on the inner wall of the additive body 1, so as to scrape off the objects adhering to the inner wall of the additive body 1. This facilitates the treatment without affecting the normal use of the additive body 1. When it is necessary to clean the inside of the additive body 1 later, the stirring rod 3 is pulled upward via the first connecting block 2, and its connecting rod 5 is also pulled upward along the second sliding groove 8, thereby removing the entire stirring rod 3 for easy cleaning of the additive body 1 later. The internal purpose is that, due to the presence of the electromagnet 10, the protective cover 12 can be effectively attracted to prevent its displacement. When it is necessary to remove the protective cover 12 later, the electromagnet 10 can be turned off and the cover can be pulled out directly through the handle 13, thereby improving the safety protection of the additive body 1. Due to the presence of the sealing ring 19, the contact point between the protective cover 12 and the additive body 1 can be effectively sealed, thereby improving the overall sealing protection of the additive body 1. Due to the opening of the rectangular opening 14, the user can directly view the inside of the additive body 1 through the transparent glass 15 without opening the protective cover 12, thereby facilitating the user to observe the operation status of the additive body 1 at all times. Due to the presence of the rubber pad 22, which is made of rubber and has good anti-slip and rubber shock absorption capabilities, the stability of the additive body 1 can be effectively improved.

Claims

1. A chemical dosing device for wastewater treatment, comprising a dosing device body (1), characterized in that: A first connecting block (2) is installed on the inner bottom of the additive body (1). A stirring rod (3) is rotatably connected to the top of the first connecting block (2). A second connecting block (4) is fixedly connected to the top of the stirring rod (3). A connecting rod (5) is fixedly connected to the outer side of the stirring rod (3). A scraper (6) is slidably connected to the inner wall of the additive body (1). A first groove (7) matching the scraper (6) is opened on the inner wall of the additive body (1). The scraper (6) is slidably connected to the inner wall of the additive body (1) through the first groove (7). One side of the connecting rod (5) is slidably connected to... On the other side of the scraper (6), a protective cover (12) is attached to the top of the additive body (1). The protective cover (12) covers the top of the additive body (1). A mounting shell (16) is fixedly connected to the top of the protective cover (12). A drive motor (20) is installed on the inner side of the mounting shell (16). The rotating shaft of the drive motor (20) is snapped onto the top of the second connecting block (4). A feed block (17) is fixedly connected to the top of the protective cover (12). A feed port (18) is opened at the top of the feed block (17). The feed port (18) communicates with the inner side of the additive body (1).

2. The wastewater treatment chemical additive according to claim 1, characterized in that: The scraper (6) has a second groove (8) on the other side that matches the connecting rod (5). The connecting rod (5) is slidably connected to one side of the scraper (6) through the second groove (8).

3. The wastewater treatment chemical additive according to claim 1, characterized in that: The top of the adder body (1) has a groove (9), and an electromagnet (10) is fixedly connected to the inner side of the groove (9). The electromagnet (10) covers the inner side of the groove (9). The bottom of the protective cover (12) is in contact with the top of the electromagnet (10). The part of the protective cover (12) in contact with the electromagnet (10) is made of magnetic material. The top of the protective cover (12) is fixedly connected to a handle (13). The handle (13) is concave in shape, and the corners of the handle (13) are arc-shaped.

4. A wastewater treatment chemical additive according to claim 1, characterized in that: The top of the additive body (1) is provided with a sealing groove (11), and the bottom of the protective cover (12) is fixedly connected with a sealing ring (19) that matches the sealing groove (11), and the sealing ring (19) covers the inner side of the sealing groove (11).

5. A wastewater treatment chemical additive according to claim 1, characterized in that: The top of the protective cover (12) has a rectangular opening (14), which communicates with the inside of the additive body (1). A transparent glass (15) is fixedly connected to the inside of the rectangular opening (14), and the transparent glass (15) covers the inside of the rectangular opening (14).

6. A chemical dosing device for wastewater treatment according to claim 1, characterized in that: The bottom end of the adder body (1) is fixedly connected to a limiting frame (21), and a rubber pad (22) is fixedly connected to the inner side of the limiting frame (21). The rubber pad (22) covers the inner side of the limiting frame (21), and the position of the bottom end of the rubber pad (22) is on the same horizontal line as the position of the bottom end of the limiting frame (21).

7. A wastewater treatment chemical additive according to claim 1, characterized in that: A connecting pipe (23) is fixedly connected to the outside of the adder body (1). The connecting pipe (23) communicates with the inside of the adder body (1). A drug dispensing ring (24) is provided on the front side of the connecting pipe (23). The drug dispensing ring (24) communicates with the connecting pipe (23). A pull rod (25) is provided at the top of the drug dispensing ring (24).

Citation Information

Patent Citations

  • Drug adder for sewage treatment

    CN219823809U