Device for treating rural sewage
By introducing mixing and filtration mechanisms into rural sewage treatment plants, the problems of insufficient mixing and low filtration efficiency have been solved, achieving high efficiency, continuity, and automation in sewage treatment and improving the sewage purification effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-31
AI Technical Summary
Existing rural sewage treatment facilities have shortcomings in the mixing and filtration stages, resulting in insufficient mixing, low filtration efficiency, and easy clogging, making it difficult to meet the treatment needs of complex water quality and large fluctuations in water volume.
It adopts a mixing mechanism and a filtration mechanism. The mixing mechanism uses a drive motor to drive the rotating shaft and stirring blades to achieve thorough mixing of wastewater and chemicals. The filtration mechanism uses a drive motor to drive the filter screen to achieve efficient filtration. It is also equipped with a scraping component and a collection component to automatically clean impurities. It combines a multi-stage filtration design with a mixing tank and a filter box.
It enables rapid mixing and efficient filtration of wastewater and chemicals, improving wastewater treatment efficiency, reducing equipment maintenance costs, and ensuring the continuity and quality of wastewater treatment.
Smart Images
Figure CN224062472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rural sewage treatment, and in particular to a device for treating rural sewage. Background Technology
[0002] In the process of promoting the rural revitalization strategy, rural sewage treatment has become a key link in improving the rural ecological environment and protecting the health of residents. It provides a new solution for the efficient treatment of rural sewage, aiming to achieve sewage purification and resource recycling. At present, rural sewage treatment equipment mostly adopts traditional sedimentation, filtration and biological treatment processes. Common sewage treatment devices include basic structures such as sedimentation tanks, filtration tanks and biological reactors. Sedimentation tanks use gravity to make the denser solid particles in the sewage settle to the bottom of the tank. Filtration tanks use sand and gravel and other filter media to intercept suspended solids in the sewage. Biological reactors rely on microorganisms to degrade organic pollutants in the sewage. These devices can achieve preliminary purification of sewage to a certain extent, but the overall treatment process is relatively decentralized and the coordination between the links is insufficient.
[0003] Existing rural sewage treatment devices have significant shortcomings in the mixing and filtration stages. In terms of mixing, most devices use static mixing or simple stirring methods, which makes it difficult to ensure that the sewage and chemicals are fully mixed, resulting in insufficient chemical reactions and affecting the removal of pollutants. In the filtration stage, traditional fixed filters have low filtration efficiency and are prone to clogging, requiring frequent cleaning and replacement. This not only increases maintenance costs but also reduces the continuity of sewage treatment, failing to meet the treatment needs of rural sewage with complex water quality and large fluctuations in water volume. Therefore, a device for treating rural sewage is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a device for treating rural sewage, which aims to improve the problem that the filter screen cannot be effectively cleaned in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An apparatus for treating rural sewage includes a base, a mixing tank fixedly connected to the top of the base, a mixing mechanism installed in the middle of the mixing tank, a filter box fixedly connected to the top of the base, and a filtering mechanism installed in the middle of the filter box.
[0007] The mixing mechanism includes a stirring assembly and a scraping assembly. The stirring assembly includes a second drive motor, which is fixedly connected to the top of the mixing tank. The output end of the second drive motor is fixedly connected to a second rotating shaft, which is rotatably connected to the inside of the mixing tank. Stirring blades are fixedly connected to the outside of the second rotating shaft.
[0008] As a further description of the above technical solution:
[0009] The scraping assembly includes a second connecting rod, which is fixedly connected to the outside of the second rotating shaft, and a scraper is fixedly connected to the outside of the second connecting rod.
[0010] As a further description of the above technical solution:
[0011] The filtration mechanism includes a filter screen assembly and a collection assembly. The filter screen assembly is driven by a first motor, which is fixedly connected to the outside of the first filter box. The output end of the first motor is fixedly connected to a filter screen. The filter screen is rotatably connected to the inside of the first filter box, and a rotating shaft is rotatably connected to the outside of the filter screen.
[0012] As a further description of the above technical solution:
[0013] The collection assembly includes a fixed shaft, which is fixedly connected to the middle of the filter box. A screw is threaded to the front end of the fixed shaft. A connecting plate is installed on the outside of the fixed shaft. Two connecting rods are fixedly connected to the bottom of the connecting plate. A mud inlet hopper is fixedly connected to the bottom of the two connecting rods. A mud discharge pipe is fixedly connected to the middle of the mud inlet hopper.
[0014] As a further description of the above technical solution:
[0015] A mud collection box is fixedly connected to the bottom side of the base, and a mud discharge pipe is fixedly connected to the middle of the mud collection box.
[0016] As a further description of the above technical solution:
[0017] A connecting pipe 2 is fixedly connected to the middle of the filter box 1, and a water pump is fixedly connected to the outside of the connecting pipe 2.
[0018] As a further description of the above technical solution:
[0019] A second filter box is fixedly connected to the top of the mixing tank, a sand filter screen is fixedly connected to the middle of the second filter box, and a first connecting pipe is fixedly connected to the middle of the second filter box.
[0020] As a further description of the above technical solution:
[0021] A water inlet pipe is fixedly connected to the middle of the filter box, a chemical dosing port is fixedly connected to the top of the mixing tank, and a water outlet pipe is fixedly connected to the bottom of the mixing tank.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the second drive motor drives the second rotating shaft and the stirring blade to rotate at high speed, forming strong water flow disturbance in the mixing tank. This allows the sewage and the treatment agent to mix quickly and thoroughly, greatly shortening the reaction time and improving the efficiency of sewage treatment.
[0024] 2. In this utility model, the drive motor drives the filter screen to rotate, so that the sewage can fully contact the filter screen during the filtration process. The rotating filter screen greatly increases the contact area and contact time between the sewage and the filter screen, thereby more efficiently intercepting suspended particles, colloids, silt and other impurities in the sewage, effectively reducing the turbidity of the sewage, and providing better water intake conditions for subsequent treatment stages. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a device for treating rural sewage according to the present invention;
[0026] Figure 2 This is a schematic diagram of the dosing port of a device for treating rural sewage proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of a filter screen for a device for treating rural sewage proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the sludge discharge pipe of a device for treating rural sewage proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the stirring blade of a device for treating rural sewage proposed in this utility model;
[0030] Figure 6 This is a schematic diagram of the structure of a water pump for a device for treating rural sewage proposed in this utility model.
[0031] In the diagram: 1. Base; 2. Filter box one; 3. Mixing tank; 4. Drive motor one; 5. Rotating shaft one; 6. Filter screen; 7. Water inlet pipe; 8. Sludge collection box; 9. Sludge discharge pipe; 10. Screw; 11. Connecting plate; 12. Connecting rod one; 13. Fixed shaft; 14. Sludge inlet hopper; 15. Water outlet pipe; 16. Filter box two; 17. Sand filter screen; 18. Connecting pipe one; 19. Connecting pipe two; 20. Water pump; 21. Drive motor two; 22. Chemical dosing port; 23. Rotating shaft two; 24. Scraper; 25. Connecting rod two; 26. Mixing blade. Detailed Implementation
[0032] 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.
[0033] Reference Figure 1 and Figure 5 This utility model provides an embodiment of a device for treating rural sewage, comprising a base 1, a mixing tank 3 fixedly connected to the top of the base 1, and a mixing mechanism installed in the middle of the mixing tank 3. The mixing mechanism stirs the water to ensure thorough mixing and reaction of the reagents, converting specific pollutants into precipitates or other easily removable forms. These pollutants are then removed from the water through filtration or other separation methods, thereby purifying the water. A filter box 2 is fixedly connected to the top of the base 1, and a filtration mechanism is installed in the middle of the filter box 2. The filtration mechanism physically intercepts suspended solids on the surface or within the pores of the filter media, clarifying the sewage, reducing turbidity, and providing better water quality conditions for subsequent treatment.
[0034] The mixing mechanism includes a stirring assembly and a scraping assembly. The stirring assembly includes a second drive motor 21, which is fixedly connected to the top of the mixing tank 3. A second rotating shaft 23 is fixedly connected to the output end of the drive motor 21 and rotatably connected inside the mixing tank 3. A stirring blade 26 is fixedly connected to the outer side of the rotating shaft 23. The scraping assembly includes a second connecting rod 25, which is fixedly connected to the outer side of the rotating shaft 23. A scraper 24 is fixedly connected to the outer side of the connecting rod 25. When the drive motor 21 is started, the rotating shaft 23 begins to rotate, causing the stirring blade 26 and the connecting rod 25 to rotate synchronously. The stirring blades 26 rotate at high speed inside the mixing tank 3, thoroughly mixing the wastewater and chemicals, ensuring that the chemicals are evenly dispersed in the wastewater and accelerating the chemical reaction. At the same time, the connecting rod 25 drives the scraper 24 to scrape along the inner wall of the mixing tank 3, removing impurities and sediments adhering to the tank wall. This prevents these substances from accumulating and affecting the mixing effect and normal operation of the equipment. The scraped impurities and sediments are discharged from the mixing tank 3 along with the water flow, thus ensuring the cleanliness of the mixing tank 3 and the effectiveness of wastewater treatment.
[0035] Reference Figure 1 , Figure 3 and Figure 4The filtration mechanism includes a filter screen assembly and a collection assembly. The filter screen assembly is driven by a motor 4, which is fixedly connected to the outside of the filter box 2. A filter screen 6 is fixedly connected to the output end of the motor 4, and the filter screen 6 is rotatably connected inside the filter box 2. A rotating shaft 5 is rotatably connected to the outside of the filter screen 6. The collection assembly includes a fixed shaft 13, which is fixedly connected to the middle of the filter box 2. A screw 10 is threaded onto the front end of the fixed shaft 13. A connecting plate 11 is mounted on the outside of the fixed shaft 13. Two connecting rods 12 are fixedly connected to the bottom of the connecting plate 11. A mud inlet hopper 14 is fixedly connected to the bottom of the two connecting rods 12. A mud discharge pipe 9 is fixedly connected to the middle of the mud inlet hopper 14. A mud collection box 8 is fixedly connected to the bottom side of the base 1, and the mud discharge pipe 9 is fixedly connected to the middle of the mud collection box 8. When wastewater enters the filter box 2, the drive motor 4 drives the filter screen 6 to rotate. The wastewater enters the next treatment stage inside the filter screen 6, while impurities are trapped on the surface of the filter screen 6. As the filter screen 6 rotates, the sludge attached to the surface of the filter screen gradually falls off under the action of gravity and centrifugal force and falls into the sludge inlet hopper 14 below. The sludge collected in the sludge inlet hopper 14 flows into the sludge collection box 8 through the sludge discharge pipe 9, realizing the centralized collection of sludge. When the sludge in the sludge collection box 8 reaches a certain amount, the sludge can be discharged for subsequent treatment by opening the sludge discharge valve of the sludge collection box 8. The whole process realizes the automated operation of wastewater filtration and sludge collection, improving the efficiency of wastewater treatment.
[0036] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 A connecting pipe 19 is fixedly connected to the middle of filter box 2, and a water pump 20 is fixedly connected to the middle of connecting pipe 19. A filter box 16 is fixedly connected to the top of mixing tank 3, a sand filter screen 17 is fixedly connected to the bottom of filter box 16, and a connecting pipe 18 is fixedly connected to the middle of filter box 16. A water inlet pipe 7 is fixedly connected to the middle of filter box 2, a chemical dosing port 22 is fixedly connected to the top of mixing tank 3, and a water outlet pipe 15 is fixedly connected to the middle of mixing tank 3. Wastewater first enters filter box 2 through inlet pipe 7, where it undergoes preliminary filtration to remove larger impurities. Then, water pump 20 transports the pre-filtered wastewater to filter box 16 through connecting pipe 2 19. After further filtration through sand filter screen 17 in filter box 16, the wastewater flows into mixing tank 3 through connecting pipe 1 18. In mixing tank 3, treatment agents are added through dosing port 22, and the mixing components are used to fully mix the wastewater, allowing the pollutants in the wastewater to react with the agents. Finally, the treated wastewater is discharged from mixing tank 3 through outlet pipe 15.
[0037] Working principle: When the sewage treatment plant is in operation, sewage flows into the filter box 2 from the inlet pipe 7, initiating the preliminary filtration process. The filter screen assembly in the filtration mechanism starts working under the drive motor 4. The drive motor 4 transmits power to the filter screen 6, causing it to rotate around the shaft 5 inside the filter box 2. During the rotation, suspended solids and large particulate impurities in the sewage are intercepted through the mesh of the filter screen 6. The purified water passes through the filter screen 6 and enters the interior of the filter box 2. As the filter screen 6 continues to rotate, the intercepted impurities gradually accumulate on the surface of the filter screen. Under the action of gravity and centrifugal force, the impurities detach from the filter screen 6 and fall into the collection assembly below. The impurities enter the sludge collection box 8 through the sludge inlet hopper 14 and the sludge discharge pipe 9, completing the separation of the preliminary filtration stage and achieving the removal of larger particulate pollutants in the sewage.
[0038] After initial filtration, the wastewater is transported to filter box 16 via connecting pipe 219, powered by pump 20. In filter box 16, the wastewater passes through sand filter 17 to further remove fine particles, colloids, and other impurities. After secondary filtration, the wastewater flows into mixing tank 3 via connecting pipe 18. Subsequently, treatment agents, such as flocculants and disinfectants, are added to mixing tank 3 through dosing port 22. At this time, the mixing mechanism begins to function, and drive motor 21 starts, driving shaft 23 to rotate inside mixing tank 3. The stirring blades 26 on the outside of shaft 23 rotate at high speed, thoroughly mixing the wastewater and agents. During the mixing process, the agents are rapidly dispersed in the wastewater and react chemically with pollutants. For example, flocculants cause suspended particles to aggregate into larger flocs, facilitating subsequent sedimentation and separation, while disinfectants kill bacteria, viruses, and other microorganisms in the wastewater.
[0039] While the mixing blade 26 is mixing the wastewater, the scraping assembly works simultaneously. The connecting rod 25 drives the scraper 24 to move in a circular motion along the inner wall of the mixing tank 3. The scraper 24 scrapes away impurities and flocs that are attached to the tank wall during the mixing process, preventing them from accumulating on the tank wall and affecting the mixing effect and normal operation of the equipment, and ensuring that the wastewater and the agent are evenly mixed and fully reacted in the mixing tank 3.
[0040] After the dosing and mixing process is completed, the pollutants in the wastewater have fully reacted with the chemicals, forming precipitates or other easily separable forms. At this point, the treated wastewater is discharged through the effluent pipe 15 for further sedimentation, disinfection, and other advanced treatments, or it can be discharged directly to achieve the purification and treatment of rural wastewater. The sludge collected in the sludge collection box 8 can be cleaned regularly for specialized sludge treatment and disposal.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for treating rural sewage comprising a base (1) characterised in that: The top of the base (1) is fixedly connected with a stirring barrel (3), a mixing mechanism is installed in the middle of the stirring barrel (3), the top of the base (1) is fixedly connected with a filter box one (2), and a filtering mechanism is installed in the middle of the filter box one (2). The mixing mechanism comprises a stirring assembly and a scraping assembly, the stirring assembly comprises a driving motor two (21), the driving motor two (21) is fixedly connected to the top of the stirring barrel (3), the output end of the driving motor two (21) is fixedly connected with a rotating shaft two (23), the rotating shaft two (23) is rotatably connected to the inside of the stirring barrel (3), and the outer side of the rotating shaft two (23) is fixedly connected with stirring blades (26).
2. A device for treating rural sewage according to claim 1, characterized in that: The scraping assembly comprises a connecting rod two (25), the connecting rod two (25) is fixedly connected to the outer side of the rotating shaft two (23), and the outer side of the connecting rod two (25) is fixedly connected with a scraper (24).
3. A device for treating rural sewage as claimed in claim 1, wherein: The filtering mechanism comprises a filter screen assembly and a collecting assembly, the filter screen assembly comprises a driving motor one (4), the driving motor one (4) is fixedly connected to the outer side of the filter box one (2), the output end of the driving motor one (4) is fixedly connected with a filter screen (6), the filter screen (6) is rotatably connected to the inside of the filter box one (2), and the outer side of the filter screen (6) is rotatably connected with a rotating shaft one (5).
4. A device for treating rural sewage according to claim 3, characterized in that: The collecting assembly comprises a fixed shaft (13), the fixed shaft (13) is fixedly connected to the middle of the filter box one (2), the front end of the fixed shaft (13) is screw-connected with a screw (10), the outer side of the fixed shaft (13) is provided with a connecting plate (11), the bottom of the connecting plate (11) is fixedly connected with two connecting rods one (12), the bottoms of the two connecting rods one (12) are fixedly connected with a mud inlet hopper (14), and the middle of the mud inlet hopper (14) is fixedly connected with a mud discharge pipe (9).
5. A device for treating rural sewage according to claim 4, characterized in that: The bottom side of the base (1) is fixedly connected with a mud collecting tank (8), and the mud discharge pipe (9) is fixedly connected to the middle of the mud collecting tank (8).
6. The device for treating rural sewage according to claim 1, characterized in that: The middle of the filter box one (2) is fixedly connected with a connecting pipe two (19), and the middle of the connecting pipe two (19) is fixedly connected with a water pump (20).
7. The device for treating rural sewage according to claim 1, characterized in that: The top of the stirring barrel (3) is fixedly connected with a filter box two (16), the middle of the filter box two (16) is fixedly connected with a sand filter screen (17), and the bottom of the filter box two (16) is fixedly connected with a connecting pipe one (18).
8. The device for treating rural sewage according to claim 1, characterized in that: The middle of the filter box one (2) is fixedly connected with a water inlet pipe (7), the top of the stirring barrel (3) is fixedly connected with a dosing opening (22), and the middle of the stirring barrel (3) is fixedly connected with a water outlet pipe (15).