Hydrolysis acidification reaction tank for sewage treatment

By installing a servo motor-driven stirring device and gear transmission system in the hydrolysis acidification reaction tank, the problems of uneven stirring and difficulty in removing sediment were solved, the mixing efficiency and reaction rate were improved, and the operational stability of the equipment was extended.

CN224062565UActive Publication Date: 2026-03-31HANGZHOU DAJING ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional hydrolysis acidification reaction tanks suffer from problems such as uneven stirring, low mixing efficiency of regulators, and difficulty in removing bottom sediments, which affect reaction efficiency and operational stability, especially when the regulator is added.

Method used

A servo motor-driven rotating shaft is installed at the top of the tank to drive the stirring column for stirring. The quantitative introduction of the regulator is achieved through gear meshing. At the same time, a rotating block, plug-in column and scraper structure are set to achieve synchronous scraping of sediment at the bottom of the tank.

Benefits of technology

It improves the mixing efficiency of wastewater and conditioning agents, promotes the reaction rate, ensures precise dosing, avoids sludge accumulation, and extends the equipment operating cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sewage treatment, and discloses a hydrolytic acidification reaction tank for sewage treatment, which comprises a tank body, symmetrical inclined planes are arranged on two sides of the bottom of the tank body, a top cover is mounted at the top of the tank body, a servo motor is fixedly connected to the top of the top cover, and the top of the servo motor is connected with a water pump. An output shaft of the servo motor is fixedly connected with a first rotating shaft, and the servo motor is arranged at the top of the tank body and drives the first rotating shaft, so that the plurality of stirring columns effectively stir in the reaction tank, the mixing efficiency of sewage and a regulator is improved, and the reaction rate is increased; through gear meshing transmission between the first rotating shaft and the second rotating shaft, the regulator can be intermittently and quantitatively introduced into the tank body, so that the feeding process is more accurate; meanwhile, by arranging a rotating block and an inserting column, a sliding block and a second scraping plate which are matched with the rotating block, synchronous scraping of sediments at the bottom of the pool is achieved, sludge accumulation is avoided, and the operation cycle of equipment is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a hydrolysis acidification reaction tank for wastewater treatment. Background Technology

[0002] The hydrolysis acidification reactor is an anaerobic biological treatment structure that uses hydrolytic acidification bacteria to hydrolyze and acidify large organic molecules in wastewater, converting them into small organic molecules that are easily utilized by subsequent biological treatment units.

[0003] Traditional hydrolysis acidification reaction tanks have a relatively simple structure and generally suffer from problems such as uneven stirring, low mixing efficiency of regulators, and difficulty in effectively removing bottom sediments. These problems seriously affect reaction efficiency and operational stability. In particular, during the addition of regulators (such as pH adjusters), uneven addition or insufficient reaction often leads to unsatisfactory wastewater treatment results. At the same time, unreasonable bottom structure design can also easily cause sludge accumulation, thereby reducing the effective volume and increasing operation and maintenance costs.

[0004] Therefore, it is necessary to design a hydrolysis acidification reaction tank for wastewater treatment to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hydrolysis acidification reaction tank for wastewater treatment, which solves the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydrolysis acidification reaction tank for wastewater treatment, comprising a tank body, with symmetrical inclined surfaces on both sides of the bottom of the tank body, a top cover installed on the top of the tank body, and a servo motor fixedly connected to the top of the top cover. The output shaft of the servo motor is fixedly connected to a first rotating shaft, and multiple stirring columns are fixedly connected to the outer surface of the bottom end of the first rotating shaft. A rotating block is fixedly connected to the bottom of the first rotating shaft, and a plug-in post is fixedly connected to the bottom of the rotating block. A sliding block is slidably inserted into the inner cavity of the tank body, and a groove is formed on the top of the sliding block. The plug-in post is slidably inserted into the interior of the groove. Furthermore, a second scraper is fixedly connected to the bottom of the sliding block, and the bottom end of the second scraper is in contact with the bottom end of the inner cavity of the pool body. A second rotating shaft is rotatably connected to the bottom of the top cover, and a turntable is fixedly sleeved on the outer surface of the second rotating shaft. A second regulating agent inlet is opened on the outer surface of the turntable. A first regulating agent inlet is connected to the top of the top cover. The bottom end of the first regulating agent inlet is in contact with the top end of the second regulating agent inlet. A second gear is fixedly connected to the bottom end of the second rotating shaft, and a first gear is fixedly sleeved on the outer surface of the first rotating shaft. The first gear and the second gear mesh with each other, and the gear ratio of the first gear and the second gear is 1:5.

[0007] Preferably, T-shaped grooves are provided on both sides of the inner cavity of the pool body, and T-shaped blocks are fixed to both ends of the sliding block, and the two T-shaped blocks are respectively slidably engaged in the interior of the two T-shaped grooves.

[0008] Preferably, the rotating block is rotatably disposed between two inclined surfaces inside the pool body, and the bottom diameter of the rotating block matches the bottom diameter of the pool body, and the top of the rotating block has an arc-shaped surface.

[0009] Preferably, connecting blocks are fixed to both sides of the inner cavity of the pool body, and a first scraper is fixed to one end of each of the two pool bodies, with the bottom of each of the first scrapers fitting against the top arc-shaped surface of the rotating block.

[0010] Preferably, the top of the pool has a sewage inlet, one side of the pool has a water outlet, and the bottom of the pool has a sediment discharge outlet.

[0011] Preferably, the outer surface of the second scraper has a square opening, and the second scraper is slidably disposed between two inclined surfaces inside the pool.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention improves the mixing efficiency of wastewater and conditioning agent by installing a servo motor at the top of the tank and driving a first rotating shaft, thereby enabling multiple stirring columns to effectively stir the mixture inside the reaction tank and promoting the reaction rate. The gear meshing transmission between the first and second rotating shafts allows the conditioning agent to be introduced into the tank intermittently and quantitatively, ensuring a more precise dosing process. Simultaneously, by setting a rotating block and its matching plug-in column, sliding block, and second scraper, the synchronous scraping of sediment at the bottom of the tank is achieved, preventing sludge accumulation and extending the equipment's operating cycle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the pool structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the first and second gear structures of this utility model;

[0017] In the diagram: 1. Tank body; 2. Top cover; 3. Sewage inlet; 4. Servo motor; 5. First regulator inlet; 6. Water outlet; 7. Sediment discharge outlet; 8. First rotating shaft; 9. Stirring column; 10. Rotating block; 11. Connecting block; 12. First scraper; 13. Sliding block; 14. T-shaped block; 15. Second scraper; 16. T-slot; 17. Insertion column; 18. Turntable; 19. Second rotating shaft; 20. First gear; 21. Second gear; 22. Second regulator inlet. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-3This utility model provides a hydrolysis acidification reaction tank for wastewater treatment, including a tank body 1. Symmetrical inclined surfaces are provided on both sides of the bottom of the tank body 1. A top cover 2 is installed on the top of the tank body 1, and a servo motor 4 is fixedly connected to the top of the top cover 2. The output shaft of the servo motor 4 is fixedly connected to a first rotating shaft 8. Multiple stirring columns 9 are fixedly connected to the outer surface of the bottom end of the first rotating shaft 8, and a rotating block 10 is fixedly connected to the bottom end of the first rotating shaft 8. A plug-in post 17 is fixedly connected to the bottom of the rotating block 10, and a sliding block 13 is slidably inserted into the inner cavity of the tank body 1. The top of the sliding block 13 has a groove, and the insertion post 17 is slidably inserted into the groove. A second scraper 15 is fixedly connected to the bottom of the sliding block 13, with the bottom end of the second scraper 15 fitting against the bottom end of the inner cavity of the pool body 1. A second rotating shaft 19 is rotatably connected to the bottom of the top cover 2, and a turntable 18 is fixedly sleeved on the outer surface of the second rotating shaft 19. A second regulating agent inlet 22 is provided on the outer surface of the turntable 18. The top of the top cover 2 is connected to a first regulating agent inlet 5, and the bottom end of the first regulating agent inlet 5 is connected to the second regulating agent inlet 22. The tops of the two rotating shafts 1 and 2 are fitted together. The bottom end of the second rotating shaft 19 is fixedly connected to the second gear 21. The outer surface of the first rotating shaft 8 is fixedly fitted with the first gear 20, and the first gear 20 and the second gear 21 mesh with each other. The gear ratio of the first gear 20 and the second gear 21 is 1:5. When sewage is fed into the tank 1, its pH value needs to be adjusted. At this time, an appropriate amount of pH adjuster can be put in through the first adjuster inlet 5. Then, by turning on the servo motor 4, the rotation of the first rotating shaft 8 and the first gear 20 and the second gear 21 are activated. The meshing rotation of 1 causes the turntable 18 to rotate at a reduced speed, thereby intermittently feeding the pH adjuster placed inside the first adjuster inlet 5 into the interior of the tank 1 to mix with the sewage. At the same time, the rotation of the first rotating shaft 8 uses multiple stirring columns 9 to stir the sewage, thereby accelerating the mixing of sewage and pH adjuster. Meanwhile, the rotation of the rotating block 10 causes the insertion column 17 to slide back and forth inside the groove of the sliding block 13, thereby causing the second scraper 15 to perform reciprocating scraping work at the bottom of the tank 1, thereby preventing sedimentation inside the tank 1 and promoting the reaction.

[0021] In order to make the sliding block 13 slide stably inside the pool body 1, T-shaped grooves 16 are provided on both sides of the inner cavity of the pool body 1, and T-shaped blocks 14 are fixedly connected to both ends of the sliding block 13, and the two T-shaped blocks 14 are respectively slidably engaged inside the two T-shaped grooves 16.

[0022] To facilitate the prevention of sedimentation at the bottom of the tank 1 while stirring the sewage, the rotating block 10 is rotatably positioned between two inclined surfaces inside the tank 1, and the bottom diameter of the rotating block 10 matches the bottom diameter of the tank 1, and the top of the rotating block 10 has an arc-shaped surface.

[0023] Furthermore, in order to simultaneously scrape the outer surface of the rotating block 10 and prevent deposits from accumulating on the top of the rotating block 10, connecting blocks 11 are fixedly connected to both sides of the inner cavity of the pool body 1, and a first scraper 12 is fixedly connected to one end of each of the two pool bodies 1, and the bottom of each of the two first scrapers 12 is in contact with the top arc-shaped surface of the rotating block 10.

[0024] Furthermore, to facilitate the entry of sewage, the discharge of sludge, and the discharge of treated sewage, a sewage inlet 3 is provided at the top of the pool body 1, a water outlet 6 is provided on one side of the pool body 1, and a sediment discharge outlet 7 is provided at the bottom of the pool body 1.

[0025] To facilitate scraping the sediment falling from the slope, the outer surface of the second scraper 15 is provided with a square opening, and the second scraper 15 is slidably disposed between the two slopes inside the pool body 1.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A hydrolytic acidification reaction tank for sewage treatment, comprising a tank body (1), characterized in that: The bottom of the pool body (1) is provided with symmetrical inclined surfaces, the top of the pool body (1) is provided with a top cover (2), the top of the top cover (2) is fixedly connected with a servo motor (4), the output shaft of the servo motor (4) is fixedly connected with a first rotating shaft (8), the outer surface of the bottom end of the first rotating shaft (8) is fixedly connected with a plurality of stirring columns (9), the bottom end of the first rotating shaft (8) is fixedly connected with a rotating block (10), the bottom of the rotating block (10) is fixedly connected with a plug-in column (17), the inner cavity of the pool body (1) is slidably connected with a sliding block (13), the top of the sliding block (13) is provided with a sliding groove, the plug-in column (17) is slidably connected in the sliding groove, the bottom of the sliding block (13) is fixedly connected with a second scraper (15), the bottom end of the second scraper (15) is matched with the bottom end of the inner cavity of the pool body (1), the bottom of the top cover (2) is rotatably connected with a second rotating shaft (19), the outer surface of the second rotating shaft (19) is fixedly connected with a rotating disc (18), the outer surface of the rotating disc (18) is provided with a second adjusting agent inlet (22), the top of the top cover (2) is connected with a first adjusting agent inlet (5), the bottom end of the first adjusting agent inlet (5) is matched with the top of the second adjusting agent inlet (22), the bottom end of the second rotating shaft (19) is fixedly connected with a second gear (21), the outer surface of the first rotating shaft (8) is fixedly connected with a first gear (20), the first gear (20) and the second gear (21) are engaged, and the tooth number ratio of the first gear (20) and the second gear (21) is 1:

5.

2. The hydrolytic acidification reaction tank for sewage treatment according to claim 1, characterized in that: The inner cavity of the pool body (1) is provided with T-shaped grooves (16) on both sides, and the two ends of the sliding block (13) are fixedly connected with T-shaped blocks (14), and the two T-shaped blocks (14) are slidably connected in the two T-shaped grooves (16), respectively.

3. The hydrolytic acidification reaction tank for sewage treatment according to claim 1, characterized in that: The rotating block (10) is rotatably arranged between the two inclined surfaces in the pool body (1), the bottom diameter of the rotating block (10) matches the bottom diameter of the pool body (1), and the top of the rotating block (10) is provided with an arc surface.

4. The hydrolytic acidification reaction tank for sewage treatment according to claim 3, characterized in that: The inner cavity of the pool body (1) is fixedly connected with a connecting block (11) on both sides, one end of the two pool bodies (1) is fixedly connected with a first scraper (12), and the bottom of the two first scrapers (12) is matched with the top arc surface of the rotating block (10).

5. The hydrolytic acidification reaction tank for sewage treatment according to claim 1, characterized in that: The top of the pool body (1) is provided with a sewage inlet (3), one side of the pool body (1) is provided with a water source outlet (6), and the bottom of the pool body (1) is provided with a sediment discharge port (7).

6. The hydrolytic acidification reaction tank for sewage treatment according to claim 1, characterized in that: The outer surface of the second scraper (15) is provided with a square port, and the second scraper (15) is slidably arranged between the two inclined surfaces in the pool body (1).