Prefabricated filter brick filter pool water filtering device
By setting up a dosing tank and a buffer tank in the mixing tank, and using a stirrer and drive components to achieve uniform distribution and thorough mixing of the chemicals, the problem of chemicals suspending on the surface of the tank is solved, and the water filtration efficiency is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN URBAN & RURAL ENVIRONMENT & WATER CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-23
AI Technical Summary
In existing prefabricated filter brick filter water filtration devices, the chemicals remain suspended on the surface of the tank during the dosing process, making it difficult for the water in the deep premixing tank to fully react with the chemicals, thus affecting the water filtration efficiency of the entire system.
A dosing tank and a buffer tank are set up in the mixing tank. The chemical is evenly spread in the dosing tank by the hollow cylinder and stirring rod of the agitator. It is connected to the filter tank by the flow guide structure. The hollow cylinder is driven by the drive component to rotate, so that the chemical is fully mixed with the water. The flow guide structure and the lift pump are combined to achieve precise dosing and uniform distribution of the chemical.
It improves the efficiency of chemical mixing, ensures that the chemicals react fully with the water, and enhances water filtration efficiency.
Smart Images
Figure CN224388153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water filtration technology, and in particular to a prefabricated filter brick filter bed water filtration device. Background Technology
[0002] Integrated urban and rural water supply is an important component of China's urban and rural development strategy, with its core being the coordination and optimization of urban and rural water supply systems. In recent years, with the acceleration of urbanization and the development of the rural economy, the demand for integrated urban and rural water supply has been growing. Over the past few decades, China's urban and rural water supply systems have undergone significant changes. However, considerable gaps still exist between urban and rural water supply in terms of coverage, service quality, and management models. Urban water supply systems are generally more complete, with mature infrastructure and sound water source security mechanisms. However, rural water supply systems are relatively weak, with many areas still relying on traditional water sources such as well water and spring water. Water supply facilities are outdated, water quality is unstable, and these systems are insufficient to meet the needs of modern life.
[0003] Patent application number CN202221867075.6 discloses a prefabricated filter brick filter tank water filtration device, including a filter tank, in which filter bricks, filter plates and filter media are laid sequentially from bottom to top; each filter brick includes: a shell; two symmetrically arranged partition plates disposed within the shell, each partition plate forming a dispersion chamber between itself and one side wall of the shell, and the two partition plates forming a water supply chamber between themselves and the bottom of the shell; a top plate disposed within the shell, the lower surface of which is connected to the two partition plates, a water storage tank forming in the middle of the top plate, and a water recovery hole communicating with the water storage tank and the dispersion chamber on the top plate. Some water filtration devices pre-treat the water in a premixing tank before filtration. To accelerate the chemical reaction, a stirring device is added to the premixing tank. However, since the conventional dosing scheme suspends the dosing pipe above the inlet of the premixing tank, some of the liquid agent will remain suspended on the surface of the tank during the dosing process. This makes it difficult for the water in the deeper parts of the premixing tank to react fully with the agent, thus affecting the water filtration efficiency of the entire system. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes an assembled filter brick filter bed water filtration device to overcome the shortcomings of existing methods.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a prefabricated filter brick filter tank water filtration device, including a filter tank, filter bricks are laid at the bottom of the filter tank, and a filter media filter layer is laid on top of the filter bricks;
[0006] A mixing tank is provided on one side of the filtration tank. The mixing tank contains a dosing tank and a buffer tank. The dosing tank and the buffer tank are connected. The dosing tank contains a stirrer. The buffer tank is connected to the filtration tank through a flow guiding structure.
[0007] The agitator includes a hollow cylinder, the upper end of which is rotatably connected to a mounting bracket located at the upper end of the dosing tank. Multiple agitating rods are provided on the outside of the hollow cylinder, and multiple one-way liquid outlets are provided on the agitating rods. The one-way liquid outlets are connected to the dosing pipe located at the upper end of the hollow cylinder through the agitating rods and the hollow cylinder. The mounting bracket is provided with a drive assembly for controlling the rotation of the hollow cylinder.
[0008] A further improvement is made in that the dosing tube is rotatably connected to the upper end of the hollow cylinder via a slip ring. The slip ring is an electrical component responsible for connecting and transmitting energy and signals to the rotating body.
[0009] A further improvement is that the flow guiding structure includes a flow guiding pipe, a booster pump, and an overflow trough. The overflow trough is located at the upper edge of the filter tank and is connected to the buffer tank through the flow guiding pipe. The booster pump is fixedly installed at the upper end of the mixing tank and is connected to the flow guiding pipe.
[0010] A further improvement is that the drive assembly includes a motor, a first gear, and a second gear. The second gear is sleeved on the upper end of the hollow cylinder and is fixedly connected to the hollow cylinder. The first gear is rotatably mounted on the upper end of the mounting bracket and meshes with the second gear. The motor is fixedly mounted on the outside of the mounting bracket, and the motor output end is fixedly connected to the first gear.
[0011] A further improvement is that a protective box is provided at the upper end of the mounting bracket, which covers the outside of the second gear, the first gear and the motor, and the protective box is fixedly connected to the mounting bracket.
[0012] A further improvement is that a backwash trough is provided at the bottom of the filter tank, and a pulse pipe is laid in the backwash trough. The outlet of the pulse pipe is located below the filter bricks, and a drain pipe is provided on the outside of the filter tank, which is connected to the filter tank.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The chemical is precisely injected into the hollow cylinder through the dosing tube. The drive component rotates the hollow cylinder, and the chemical is evenly distributed in each area of the dosing tank through the one-way outlet on the outside of the stirring rod. The stirring rod agitates the water flow in the dosing tank, so that the chemical can be fully mixed with the water, improving the dosing mixing efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a structural diagram of the internal structure of the filter tank in this utility model.
[0017] Figure 2 This is a structural diagram of the mixing tank inside the present invention.
[0018] Figure 3 This is a structural diagram of the unidirectional liquid outlet in this utility model.
[0019] The components include: 1. Mixing tank; 2. Filtration tank; 3. Backwash tank; 4. Pulse pipe; 5. Drain pipe; 6. Filter brick; 7. Filter media layer; 8. Overflow tank; 9. Guide pipe; 10. Dosing tank; 11. Buffer tank; 13. Lifting pump; 14. Dosing pipe; 15. Hollow cylinder; 16. Stirring rod; 17. One-way outlet; 18. Protective box; 19. First gear; 20. Motor; 21. Second gear. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] according to Figure 1 , 2 As shown in Figures 1 and 3, this embodiment proposes an assembled filter brick filter bed water filtration device, including a filter bed 2, with filter bricks 6 laid at the bottom of the filter bed 2 and a filter media filtration layer 7 laid on top of the filter bricks 6.
[0022] A mixing tank 1 is provided on one side of the filter tank 2. A dosing tank 10 and a buffer tank 11 are provided in the mixing tank 1. The dosing tank 10 and the buffer tank 11 are connected. A stirrer is provided in the dosing tank 10. The buffer tank 11 is connected to the filter tank 2 through a flow guiding structure.
[0023] After the reagent is added to the dosing tank 10 and mixed, and reacts fully with the treated water, it enters the filter tank 2 through the buffer tank 11. The suspended particles, colloids and other impurities in the water are filtered by the filter media 7 when they pass through the pores between the particles. The filter brick 6 collects the clean water through the water distribution holes on its surface. Finally, the clean water is collected into the water outlet system through the channels inside the filter brick 6, completing the filtration.
[0024] The agitator includes a hollow cylinder 15, the upper end of which is rotatably connected to a mounting bracket located on the upper end of the dosing tank 10. Multiple agitating rods 16 are provided on the outer side of the hollow cylinder 15, and multiple one-way liquid outlets 17 are provided on the agitating rods 16. The one-way liquid outlets 17 are connected to the dosing pipe 14 located on the upper end of the hollow cylinder 15 through the agitating rods 16 and the hollow cylinder 15. The mounting bracket is provided with a drive assembly for controlling the rotation of the hollow cylinder 15.
[0025] The reagent (PAC / sodium hypochlorite) is precisely injected into the hollow cylinder 15 through the dosing pipe 14. The drive component drives the hollow cylinder 15 to rotate. As the hollow cylinder 15 rotates, the reagent is evenly distributed in each area of the dosing tank 10 through the one-way outlet 17 on the outside of the stirring rod 16. The hollow cylinder 15 agitates the water flow in the dosing tank 10 through the stirring rod 16, so that the reagent can be fully mixed with the water, thereby improving the dosing mixing efficiency.
[0026] It is important to note that the dosing tube 14 is rotatably connected to the upper end of the hollow cylinder 15 via a slip ring. A slip ring is an electrical component responsible for connecting and transmitting energy and signals to a rotating body. Based on the transmission medium, slip rings are classified as electrical slip rings, fluid slip rings, and smooth slip rings. A fluid slip ring is used at the connection between the dosing tube 14 and the hollow cylinder 15. When the hollow cylinder 15 rotates, the dosing tube 14 remains stationary, and the dosing tube 14 smoothly delivers the agent into the hollow cylinder 15 through the slip ring.
[0027] The flow guiding structure includes a flow guiding pipe 9, a lift pump 13, and an overflow trough 8. The overflow trough 8 is located at the upper edge of the filter tank 2 and is connected to the buffer tank 11 via the flow guiding pipe 9. The lift pump 13 is fixedly installed at the upper end of the mixing tank 1 and is connected to the flow guiding pipe 9. The buffer tank 11 and the overflow trough 8 serve to buffer the water. The lift pump 13 pumps the reacted water in the buffer tank 11 into the overflow trough 8 via the flow guiding pipe 9. When the overflow trough 8 is full, it overflows into the filter tank 2 for filtration.
[0028] Regarding driver components:
[0029] The drive assembly includes a motor 20, a first gear 19, and a second gear 21. The second gear 21 is fitted onto the upper end of the hollow cylinder 15 and is fixedly connected to the hollow cylinder 15. The first gear 19 is rotatably mounted on the upper end of the mounting bracket and meshes with the second gear 21. The motor 20 is fixedly mounted on the outside of the mounting bracket, and its output end is fixedly connected to the first gear 19. The motor 20 drives the first gear 19 to rotate, and the first gear 19 meshes with the second gear 21 during rotation, driving the second gear 21 to rotate as well. Since the hollow cylinder 15 is fixed to the second gear 21, the hollow cylinder 15 also rotates when the second gear 21 rotates, thus agitating the chemicals in the dosing tank 10.
[0030] In a preferred embodiment, a protective box 18 is provided at the upper end of the mounting bracket. The protective box 18 covers the outside of the second gear 21, the first gear 19, and the motor 20, and is fixedly connected to the mounting bracket. The protective box 18 serves to protect the drive components, preventing dust and water from contaminating the drive components and affecting their operation.
[0031] More specifically, a backwash trough 3 is provided at the bottom of the filter tank 2, and a pulse pipe 4 is laid inside the backwash trough 3. The water outlet of the pulse pipe 4 is located below the filter brick 6. A drain pipe 5 is provided on the outside of the filter tank 2 and is connected to the filter tank 2. When the filter tank 2 is backwashed, the backwash water enters the backwash trough 3 through the water outlet of the pulse pipe 4, and then is evenly sprayed upward through the water distribution holes of the filter brick 6, causing the filter media layer 7 to expand and suspend. The particles rub and collide with each other, removing the trapped impurities. At the same time, the water flow carries the impurities upward and is discharged through the drain pipe 5 at the top of the filter tank 2, realizing the cleaning and regeneration of the filter media and restoring its filtration capacity.
[0032] How this application works:
[0033] After the reagent is added to the dosing tank 10 and mixed, and fully reacted with the treated water, it enters the filter tank 2 through the buffer tank 11. Suspended particles, colloids, and other impurities in the water are filtered by the filter media 7 as they pass through the pores between the particles. The filter brick 6 collects clean water through the water distribution holes on its surface. Finally, the clean water is collected into the effluent system through the channels inside the filter brick 6, completing the filtration process. The reagent PAC / sodium hypochlorite is precisely added into the hollow cylinder 15 through the dosing pipe 14. The drive component drives the hollow cylinder 15 to rotate. As the hollow cylinder 15 rotates, the reagent is evenly distributed in every area of the dosing tank 10 through the one-way outlet 17 on the outside of the stirring rod 16. The hollow cylinder 15 agitates the water flow in the dosing tank 10 through the stirring rod 16, ensuring that the reagent is fully mixed with the water and improving the dosing and mixing efficiency.
[0034] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0035] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A prefabricated filter brick filter bed water filtration device, comprising a filter bed (2), wherein filter bricks (6) are laid at the bottom of the filter bed (2), and a filter media layer (7) is laid on top of the filter bricks (6), characterized in that: A mixing tank (1) is provided on one side of the filter tank (2). A dosing tank (10) and a buffer tank (11) are provided in the mixing tank (1). The dosing tank (10) is connected to the buffer tank (11). A stirrer is provided in the dosing tank (10). The buffer tank (11) is connected to the filter tank (2) through a flow guiding structure. The stirrer includes a hollow cylinder (15), the upper end of which is rotatably connected to a mounting bracket located at the upper end of the dosing tank (10). Multiple stirring rods (16) are provided on the outside of the hollow cylinder (15), and multiple one-way liquid outlets (17) are provided on the stirring rods (16). The one-way liquid outlets (17) are connected to the dosing pipe (14) located at the upper end of the hollow cylinder (15) through the stirring rods (16) and the hollow cylinder (15). The mounting bracket is provided with a drive assembly for controlling the rotation of the hollow cylinder (15).
2. The assembled filter brick filter bed water filtration device according to claim 1, characterized in that: The dosing tube (14) is rotatably connected to the upper end of the hollow cylinder (15) via a slip ring.
3. The assembled filter brick filter bed water filtration device according to claim 1, characterized in that: The flow guiding structure includes a flow guiding pipe (9), a booster pump (13), and an overflow trough (8). The overflow trough (8) is opened at the upper edge of the filter tank (2). The overflow trough (8) is connected to the buffer tank (11) through the flow guiding pipe (9). The booster pump (13) is fixedly installed at the upper end of the mixing tank (1). The booster pump (13) is connected to the flow guiding pipe (9).
4. The assembled filter brick filter bed water filtration device according to claim 1, characterized in that: The drive assembly includes a motor (20), a first gear (19), and a second gear (21). The second gear (21) is sleeved on the upper end of the hollow cylinder (15) and is fixedly connected to the hollow cylinder (15). The first gear (19) is rotatably disposed on the upper end of the mounting bracket and meshes with the second gear (21). The motor (20) is fixedly disposed on the outside of the mounting bracket, and the output end of the motor (20) is fixedly connected to the first gear (19).
5. The assembled filter brick filter bed water filtration device according to claim 4, characterized in that: The upper end of the mounting bracket is provided with a protective box (18), which covers the outside of the second gear (21), the first gear (19) and the motor (20), and the protective box (18) is fixedly connected to the mounting bracket.
6. The assembled filter brick filter bed water filtration device according to claim 1, characterized in that: The bottom of the filter pool (2) is provided with a backwash groove (3), and a pulse pipe (4) is laid in the backwash groove (3). The water outlet of the pulse pipe (4) is located below the filter brick (6). A drain pipe (5) is provided on the outside of the filter pool (2), and the drain pipe (5) is connected to the filter pool (2).