A hydrolysis acidification zone pretreatment tank

Abstract

The utility model discloses a kind of hydrolytic acidification area pretreatment pools, it is related to sewage treatment technical field, including pool body, several chambers are arranged in the pool body, several The chambers are separated by drainage weir, the drainage weir is installed in the bottom of several chamber inner cavities, stirring assembly is uniformly installed in the chamber, the side of the drainage weir and below the water outlet end of drainage weir Fixedly connected with intercepting screen, several fillers are uniformly installed in the chamber, the filler is composed of outer ring, second inner ring and first inner ring, the hydrolytic acidification area pretreatment pool, set water intercepting screen, block filler, avoid microbial loss, configuration stirring assembly, so that sewage and the microorganism added in chamber inside contact more fully, pool body realizes phase separation multi-stage anaerobic, and it has good buffer adaptive capacity to impact load and toxic substances in influent.

Description

Technical Field

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

[0002] Existing hydrolysis acidification tanks, as a common wastewater pretreatment process, primarily function to convert recalcitrant large organic molecules in wastewater into easily degradable small organic molecules, thereby improving the wastewater's biodegradability and creating favorable conditions for subsequent aerobic biological treatment. However, in long-term practical engineering applications, traditional hydrolysis acidification tanks typically employ a completely mixed or simple plug-flow design, treating the entire tank as a single reaction unit. This structure results in a relatively homogeneous distribution of the microbial community, making it difficult to achieve the optimal environment required for different stages of hydrolysis and acidification. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a pretreatment tank for a hydrolysis acidification zone, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment tank for a hydrolysis acidification zone, comprising a tank body, wherein the tank body has several chambers, which are separated by drainage weirs. The drainage weirs are installed at the bottom of the chambers. Each chamber is equipped with a stirring assembly. An intercepting screen is fixedly connected to one side of the drainage weir, below its outlet end. Each chamber is also equipped with several packing materials, each packing material consisting of an outer ring, a second inner ring, and a first inner ring. The first inner ring has a central hole in the middle. Several soft fibers are fixedly connected to the outer side of the outer ring. Several limiting parts for fixing and limiting the soft fibers are provided between the outer ring and the second inner ring and along the circumferential direction of the central hole. Each limiting part has a limiting groove through which the soft fibers pass. Several grooves are provided on the first inner ring around the central hole in a circumferential direction. Several snowflake-shaped plastic branches are provided between the first inner ring and the second inner ring. The snowflake-shaped plastic branches are installed between the first inner ring and the second inner ring through the grooves.

[0005] Preferably, the stirring assembly consists of a fixed frame, a stirring motor, and a stirring shaft. The fixed frame is installed inside the chamber. The top of each chamber is fixedly connected to a stirring motor, and the bottom of each chamber is rotatably connected to a stirring shaft via bearings. The output end of each stirring motor is connected to the top of the stirring shaft via a coupling.

[0006] Preferably, the inlet end of the pool is fixedly connected to an inlet channel, and the outlet end of the pool is fixedly connected to a outlet channel.

[0007] Preferably, the top height of the drainage weir gradually decreases from the water inlet channel to the water outlet channel.

[0008] Preferably, a guide plate is fixedly connected to each of the inner cavities of the cavity and in front of the drainage weir, and there is a certain gap between the bottom of the guide plate and the bottom of the inner cavity.

[0009] Preferably, the surface of the intercepting screen has a plurality of screen holes.

[0010] This utility model provides a pretreatment tank for a hydrolysis acidification zone, which has the following beneficial effects:

[0011] 1. The pretreatment tank of this hydrolysis and acidification zone is equipped with an effluent interception screen to block the packing material and prevent the loss of microorganisms. It is also equipped with a stirring component to ensure that the sewage and the microorganisms added inside the chamber have more sufficient contact. The tank achieves phase-separated multi-stage anaerobic digestion and has a good buffering and adaptability to shock loads and toxic substances in the influent. This results in a relatively homogeneous distribution of the microbial community and achieves the optimal environment required for different stages of hydrolysis and acidification.

[0012] 2. The pretreatment tank of this hydrolysis acidification zone is equipped with a new type of elastic three-dimensional packing material and stirring components in each chamber, which can increase the total amount of microorganisms in each chamber, so that the organic matter in the water can be treated efficiently. Through several snowflake-shaped plastic branches, biofilm can be attached and effectively cut off air bubbles, improving the oxygen transfer rate and utilization rate, so that water-air biofilm can be fully exchanged. Through soft fibers, biofilm attachment and detachment are easy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the packing structure of this utility model.

[0016] In the diagram: 1. Tank body; 2. Water inlet channel; 3. Chamber; 4. Fixing frame; 5. Stirring motor; 6. Stirring shaft; 7. Guide plate; 8. Drainage weir; 9. Interception screen; 10. Packing material; 11. First inner ring; 12. Second inner ring; 13. Outer ring; 14. Center hole; 15. Tank body; 16. Snowflake-shaped plastic branches; 17. Limiting part; 18. Soft fiber; 19. Drainage channel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figures 1 to 3 This utility model provides a technical solution: a pretreatment tank for a hydrolysis acidification zone, comprising a tank body 1, wherein the tank body 1 has a plurality of chambers 3, which are separated by drainage weirs 8. The drainage weirs 8 are installed at the bottom of the chambers 3, and each chamber 3 is equipped with a stirring assembly. An intercepting screen 9 is fixedly connected to one side of the drainage weir 8 and below its outlet end. Each chamber 3 is equipped with a plurality of packing materials 10, which consist of an outer ring 13, a second inner ring 12, and a first inner ring 11. The first inner ring 11 has a central hole 14 in the middle. A number of soft fibers 18 are fixedly connected to the outer side of the outer ring 13. A number of limiting parts 17 for fixing and limiting the soft fibers 18 are provided between the outer ring 13 and the second inner ring 12 and along the circumferential direction of the central hole 14. Each limiting part 17 has a limiting groove through which the soft fibers 18 pass. A number of groove parts 15 are provided on the first inner ring 11 around the central hole 14 in the circumferential direction. A number of snowflake-shaped plastic branches 16 are provided between the first inner ring 11 and the second inner ring 12. The snowflake-shaped plastic branches 16 are installed between the first inner ring 11 and the second inner ring 12 through the groove parts 15.

[0019] The stirring assembly consists of a fixed frame 4, a stirring motor 5, and a stirring shaft 6. The fixed frame 4 is installed inside the chamber 3. The stirring motor 5 is fixedly connected to the top of the chamber 3, and the stirring shaft 6 is rotatably connected to the bottom of the chamber 3 through bearings. The output end of the stirring motor 5 is connected to the top of the stirring shaft 6 through a coupling.

[0020] The inlet end of the pool body 1 is fixedly connected to an inlet channel 2, and the outlet end of the pool body 1 is fixedly connected to an outlet channel 19.

[0021] The top height of the drainage weir 8 gradually decreases from the inlet channel 2 to the drainage channel 19, so that the sewage in the foremost chamber 3 enters the next chamber 3 through the drainage weir 8, and so on.

[0022] A guide plate 7 is fixedly connected to the inner cavity of chamber 3 and in front of the drainage weir 8. There is a certain gap between the bottom of the guide plate 7 and the bottom of the inner cavity of chamber 3.

[0023] The surface of the intercepting screen 9 has several screen holes to prevent the filler 10 from flowing from one chamber 3 into another chamber 3.

[0024] In summary, during use, the pretreatment tank of the hydrolysis acidification zone allows water to flow into the leftmost chamber 3 inside the tank body 1 through the inlet channel 2. The output end of the stirring motor 5 drives the stirring shaft 6 to rotate, which stirs the sewage, allowing the sewage to come into more thorough contact with the microorganisms added inside the chamber 3. The sewage then flows slowly downward along the guide plate 7 and falls onto the intercepting screen 9 through the outlet end of the drainage weir 8. The intercepting screen 9 blocks the packing material 10, preventing the loss of microorganisms. It is better adapted to changes in the quality and quantity of influent water, has strong resistance to shock loads, and uses several snowflake-shaped plastic branches 16 to both attach biofilm and effectively cut air bubbles, improving the oxygen transfer rate and utilization rate, and allowing for sufficient exchange of water, air, and biofilm. The soft fibers 18 fixed on the outer ring 13 facilitate biofilm attachment and detachment.

[0025] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or lead rod is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device. The model of the pull rope sensor is the pull rope displacement sensor DSS-M.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pretreatment tank for a hydrolysis acidification zone, comprising a tank body (1), characterized in that: The pool body (1) is provided with several chambers (3), which are separated by drainage weirs (8). The drainage weirs (8) are installed at the bottom of the chambers (3). Each chamber (3) is equipped with a stirring assembly. An intercepting screen (9) is fixedly connected to one side of the drainage weir (8) and below the outlet end of the drainage weir (8). Each chamber (3) is equipped with several packing materials (10). Each packing material (10) consists of an outer ring (13), a second inner ring (12), and a first inner ring (11). The first inner ring (11) has a central hole (14) in the middle. The outer side of the outer ring (13) is fixedly connected to... There are several soft fibers (18). Between the outer ring (13) and the second inner ring (12) and along the circumferential direction of the central hole (14), there are several limiting parts (17) for fixing and limiting the soft fibers (18). The limiting parts (17) are all provided with limiting grooves through which the soft fibers (18) pass. Several grooves (15) are provided on the first inner ring (11) around the central hole (14) in a circumferential direction. Several snowflake-shaped plastic branches (16) are provided between the first inner ring (11) and the second inner ring (12). The snowflake-shaped plastic branches (16) are installed between the first inner ring (11) and the second inner ring (12) through the grooves (15).

2. The pretreatment tank for hydrolysis acidification zone according to claim 1, characterized in that: The stirring assembly consists of a fixed frame (4), a stirring motor (5), and a stirring shaft (6). The fixed frame (4) is installed inside the chamber (3). The top of the chamber (3) is fixedly connected to the stirring motor (5), and the bottom of the chamber (3) is rotatably connected to the stirring shaft (6) through bearings. The output end of the stirring motor (5) is connected to the top of the stirring shaft (6) through a coupling.

3. The pretreatment tank for hydrolysis acidification zone according to claim 1, characterized in that: The inlet end of the pool body (1) is fixedly connected to an inlet channel (2), and the outlet end of the pool body (1) is fixedly connected to an outlet channel (19).

4. The pretreatment tank for hydrolysis acidification zone according to claim 1, characterized in that: The top height of the drainage weir (8) gradually decreases from the water inlet channel (2) to the drainage channel (19).

5. The pretreatment tank for hydrolysis acidification zone according to claim 1, characterized in that: Each of the chambers (3) and the one located in front of the drainage weir (8) is fixedly connected with a guide plate (7), and there is a certain gap between the bottom of the guide plate (7) and the bottom of the chamber (3).

6. The pretreatment tank for hydrolysis acidification zone according to claim 1, characterized in that: The surface of the intercepting screen (9) has a number of screen holes.

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