A combined filter basin for denitrification filtration

Abstract

The utility model relates to municipal sewage treatment technical field discloses a combined filter tank for denitrification filtration, including ground, the top fixedly connected with mixing pool of ground, the bottom fixedly connected with water purification pond of ground, the top fixedly connected with air pipe of ground, the top fixedly connected with agitator motor of ground, the inside fixedly connected with drain pipe of water purification pond, the inside installed with cleaning mechanism of mixing pool, the inside installed with dismounting mechanism of mixing pool, the inside detachably connected with connecting water pipe of dismounting mechanism, the cleaning mechanism includes installation pipe. In the utility model, the porosity and filter speed of filter material layer stability are kept, guaranteeing that the suspended solids, colloid particles in sewage are effectively intercepted, the effluent always meets the design standard, thereby avoiding the problem of "short flow" "breakthrough" caused by filter material blockage, guaranteeing water purification effect.

Description

Technical Field

[0001] This utility model relates to the field of municipal wastewater treatment technology, and in particular to a combined filter tank for denitrification filtration. Background Technology

[0002] In the current process of urbanization and industrialization, the discharge of various types of sewage is constantly increasing. If the nitrogen contained in the sewage is discharged directly without effective treatment, it can easily cause eutrophication of the receiving water bodies, leading to the proliferation of algae, a decrease in dissolved oxygen in the water, damage to the stability of aquatic ecosystems, and potential threats to groundwater quality, affecting water resource security and sustainable development of the ecological environment. At the same time, with the gradual improvement of environmental protection requirements, traditional sewage treatment processes can no longer meet the current needs for water purification in terms of nitrogen removal efficiency. Therefore, a combined filter pond for denitrification filtration has emerged.

[0003] The filtration tank integrates denitrification and filtration functions, providing an efficient conversion pathway for nitrate nitrogen in wastewater. This equipment utilizes the metabolic activities of denitrifying microorganisms under specific environmental conditions to convert nitrate nitrogen in wastewater into harmless nitrogen gas, which is then released into the atmosphere, thus achieving effective nitrogen removal.

[0004] In existing technologies, the porosity of the filter media layer in some mixed filtration tanks decreases, the water flow resistance increases, the filtration rate decreases significantly, the originally set hydraulic retention time is not guaranteed, the contact time between wastewater and denitrifying bacteria is shortened, the reduction of nitrate nitrogen is insufficient, and the denitrification efficiency gradually declines. To address these issues, a combined filtration tank for denitrification filtration is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a combined filter tank for denitrification filtration, which aims to improve the problems of decreased porosity of filter media layer, increased water flow resistance, and significantly reduced filtration rate in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A combined filter tank for denitrification filtration includes a ground surface, a mixing tank fixedly connected to the top of the ground surface, a clean water tank fixedly connected to the bottom of the ground surface, an air pipe fixedly connected to the top of the ground surface, a stirring motor fixedly connected to the top of the ground surface, a drain pipe fixedly connected inside the clean water tank, a cleaning mechanism installed inside the mixing tank, a disassembly mechanism installed inside the mixing tank, and a connecting water pipe detachably connected inside the disassembly mechanism. The cleaning mechanism includes an installation tube, a connecting assembly rotatably connected to the outside of the installation tube, a limiting tube fixedly connected to the outside of the connecting assembly, a support tube rotatably connected to the other side of the limiting tube, and multiple scrapers fixedly connected to the outside of the support tube. As a further description of the above technical solution: The connecting assembly includes a rotating tube, a support column fixedly connected inside the rotating tube, a rotating column rotatably connected outside the support column, a plurality of mounting columns fixedly connected outside the rotating column, and a fixing column fixedly connected outside the rotating column. As a further description of the above technical solution: The disassembly mechanism includes a chuck one, a chuck two is detachably connected inside the chuck one, a sealing ring is detachably connected to the other side of the chuck two, and a positioning component is detachably connected to the outside of the chuck two; As a further description of the above technical solution: The locking assembly includes a clamp one, a clamp two is rotatably connected to the outside of the clamp one, a mounting bracket is fixedly connected to the outside of the clamp one, another mounting bracket is fixedly connected to the outside of the clamp two, a threaded column is rotatably connected to the inside of the other mounting bracket, and a rotator is threadedly connected to the outside of the threaded column. As a further description of the above technical solution: The stirring motor is externally fixedly connected to the inside of the mixing tank, and the limiting tube is internally fixedly connected to the outside of the mounting tube; As a further description of the above technical solution: Each of the mounting columns has water spray holes inside, and the interior of the fixing column is fixedly connected to the exterior of the support column; As a further description of the above technical solution: The external part of the connecting water pipe is detachably connected to the inside of the first chuck, and the external part of the mounting pipe is detachably connected to the inside of the second chuck. As a further description of the above technical solution: The second clamp is detachably connected to the outside of the first chuck, and the second clamp is detachably connected to the outside of the second chuck.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the cleaning mechanism is placed in the mixing tank and connected to the water pipe. The rotation of the support pipe drives the scraper to rotate synchronously, scraping away the residue inside the mixing tank. At the same time, the connecting component rotates, driving the support column and the rotating column to rotate, and the spray holes spray water synchronously, so as to achieve thorough cleaning of the mixing tank. This can maintain the stable porosity and filtration rate of the filter media layer, effectively intercept suspended solids and colloidal particles in the sewage, ensure that the effluent meets the design standards, avoid the "short flow" and "penetration" problems caused by filter media blockage, and ensure the water purification effect.

[0008] 2. In this utility model, rotating the rotating device causes the threaded column to detach from the mounting bracket, and clamp one and clamp two separate; moving chuck two causes it to detach from the mounting tube, thus completing the disassembly and replacement of the cleaning mechanism. During this process, maintenance personnel do not need complicated tools and can quickly separate faulty components through simple operations, reducing interference with other structures of the filter tank, avoiding the problems of prying the filter plate and damaging the sealing layer during traditional fixed connection maintenance, reducing the risk of secondary failures, and significantly shortening the time of a single maintenance. Attached Figure Description

[0009] Figure 1 This is a perspective view of a combined filter tank for denitrification filtration proposed in this utility model. Figure 2 This is a schematic diagram of the mixing tank of a combined filter tank for denitrification filtration proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle Figure 4 This is a schematic diagram of the structure of a water purification tank for a combined filter bed used for denitrification filtration proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0010] Legend: 1. Ground; 2. Mixing tank; 3. Clean water tank; 4. Air pipe; 5. Agitator motor; 6. Drain pipe; 7. Cleaning mechanism; 71. Mounting pipe; 72. Connecting assembly; 721. Rotating pipe; 722. Support column; 723. Rotating column; 724. Mounting column; 725. Water spray hole; 726. Fixing column; 73. Limiting pipe; 74. Supporting pipe; 75. Scraper; 8. Disassembly mechanism; 81. Chuck 1; 82. Chuck 2; 83. Sealing ring; 84. Positioning assembly; 841. Clamp 1; 842. Clamp 2; 843. Mounting bracket; 844. Threaded column; 845. Rotator; 9. Connecting water pipe. Detailed Implementation

[0011] 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.

[0012] Reference Figures 1 to 3This utility model provides an embodiment of a combined filter tank for denitrification filtration, including a ground surface 1, which serves as the basic supporting structure of the entire filter tank. A mixing tank 2 is fixedly connected to the top of the ground surface 1. The mixing tank 2 is used for the mixing reaction of wastewater with denitrifying bacteria and carbon sources. A clean water tank 3 is fixedly connected to the bottom of the ground surface 1. The clean water tank 3 is used to collect treated clean water. An air pipe 4 is fixedly connected to the top of the ground surface 1. The air pipe 4 can introduce air to assist in regulating the environment inside the mixing tank 2. A stirring motor 5 is fixedly connected to the top of the ground surface 1. The stirring motor 5 provides power to the stirring components inside the mixing tank 2. A drain pipe 6 is fixedly connected inside the clean water tank 3. The drain pipe 6 is used to discharge the clean water inside the clean water tank 3. A cleaning mechanism 7 is installed inside the mixing tank 2. The cleaning mechanism 7 is used to clean the inside of the mixing tank 2. A disassembly mechanism 8 is installed inside the mixing tank 2. The disassembly mechanism 8 facilitates the disassembly and replacement of the cleaning mechanism 7. A connecting water pipe 9 is detachably connected inside the disassembly mechanism 8. The connecting water pipe 9 provides cleaning water to the cleaning mechanism 7. The cleaning mechanism 7 includes an installation tube 71, which provides mounting support for the components of the cleaning mechanism 7. A connecting assembly 72 is rotatably connected to the outside of the installation tube 71. Rotation of the connecting assembly 72 can drive the support column 722 and the rotating column 723 to rotate. A limiting tube 73 is fixedly connected to the outside of the connecting assembly 72, which limits the rotation range of the support tube 74. The other side of the limiting tube 73 is rotatably connected to the support tube 74. Rotation of the support tube 74 can drive the scraper 75 to rotate. Multiple scrapers 75 are fixedly connected to the outside of the support tube 74. Rotation of the scrapers 75 can scrape off the residue inside the mixing tank 2. The connecting assembly 72 includes a rotating tube 721, which provides an installation position for the support column 722. The support column 722 is fixedly connected inside the rotating tube 721. Rotation of the support column 722 can drive the rotating column 723 to rotate.

[0013] A rotating column 723 is rotatably connected to the outside of the support column 722. Rotating the rotating column 723 allows the mounting column 724 and the fixed column 726 to rotate synchronously. Multiple mounting columns 724 are fixedly connected to the outside of the rotating column 723. The mounting columns 724 provide positions for the water spray holes 725. Fixed columns 726 are fixedly connected to the outside of the rotating column 723. The fixed columns 726 enhance the connection stability between the support column 722 and the rotating column 723. The stirring motor 5 is fixedly connected to the inside of the mixing tank 2, ensuring stable installation of the stirring motor 5 and providing power for the mixing reaction. The limiting tube 73 is fixedly connected to the outside of the mounting tube 71, fixing the limiting tube 73 to the mounting tube 71. Water spray holes 725 are opened inside the multiple mounting columns 724. The water spray holes 725 can spray clean water to rinse the mixing tank 2. The fixed column 726 is fixedly connected to the outside of the support column 722, further securing the connection between the support column 722 and the rotating column 723.

[0014] Reference Figure 4 and Figure 5 The disassembly mechanism 8 includes a first chuck 81, which cooperates with a second chuck 82 to connect the water pipe 9 to the installation pipe 71. The second chuck 82 is detachably connected inside the first chuck 81, and cooperates with the first chuck 81 to achieve a detachable connection. A sealing ring 83 is detachably connected to the other side of the second chuck 82, enhancing the sealing performance of the connection between the second chuck 82 and the installation pipe 71. A locking assembly 84 is detachably connected to the outside of the second chuck 82. The locking assembly 84 is used to fix chuck one 81 and chuck two 82. The locking assembly 84 includes clamp one 841, which cooperates with clamp two 842 to clamp chuck one 81 and chuck two 82. Clamp two 842 is rotatably connected to the outside of clamp one 841. Clamp two 842 cooperates with clamp one 841 to fix the chuck. A mounting bracket 843 is fixedly connected to the outside of clamp one 841. The mounting bracket 843 provides an installation position for threaded post 844.

[0015] The external fixed connection of clamp 2 842 is another mounting bracket 843, which also provides an installation position for threaded post 844. The threaded post 844 is rotatably connected inside the other mounting bracket 843. Rotation of threaded post 844 can lock or loosen clamp 1 841 and clamp 2 842. The external thread of threaded post 844 is connected to a rotator 845. Rotation of rotator 845 can drive threaded post 844 to rotate. The external detachable connection of water pipe 9 is to the inside of chuck 1 81, so that water pipe 9 can be connected to other components through chuck 1 81. The external detachable connection of installation pipe 71 is to the inside of chuck 2 82, so that installation pipe 71 can be connected to other components through chuck 2 82. The external detachable connection of clamp 2 842 is to the outside of chuck 1 81, and clamp 1 81 is fixed by clamp 2 842. The external detachable connection of clamp 2 842 is to the outside of chuck 2 82, and clamp 2 82 is fixed by clamp 2 842.

[0016] Working principle: When cleaning the mixing tank 2, the cleaning mechanism 7 is first placed inside the mixing tank 2 and the water pipe is connected. At this time, the support pipe 74 starts to rotate. The rotation of the support pipe 74 causes the scraper 75 to rotate synchronously, thereby scraping away the residue inside the mixing tank 2. At the same time, the connecting component 72 rotates, which in turn drives the support column 722 to rotate. Simultaneously, the rotating column 723 rotates, and the water spray hole 725 sprays water during the rotation. This thoroughly cleans the mixing tank 2, thereby maintaining a stable porosity and filtration rate of the filter media layer, ensuring that suspended solids and colloidal particles in the sewage are effectively intercepted, and that the effluent always meets the design standards. This avoids the problems of "short flow" and "penetration" caused by filter media clogging, ensuring the water purification effect.

[0017] When disassembling and replacing the cleaning mechanism 7, firstly, rotate the rotary device 845. The rotation of the rotary device 845 causes the threaded column 844 to disengage from one of the mounting brackets 843. At this time, clamp 1 841 and clamp 2 842 are disengaged. Then, chuck 2 82 is moved, and the movement of chuck 2 82 causes it to disengage from the fixing of the mounting tube 71, thus completing the disassembly and replacing the cleaning mechanism 7. Maintenance personnel do not need to use complicated tools; they can quickly separate the faulty parts simply by disassembling the clips. This reduces the interference of maintenance operations on other structures of the filter tank, avoids the problem of having to pry up the filter plate and damage the sealing layer during maintenance of traditional fixed connections, reduces the risk of secondary failures caused by maintenance, and significantly shortens the time of a single maintenance.

[0018] 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 combined filter tank for denitrification filtration, comprising a ground surface (1), characterized in that: A mixing tank (2) is fixedly connected to the top of the ground (1), a water purification tank (3) is fixedly connected to the bottom of the ground (1), an air pipe (4) is fixedly connected to the top of the ground (1), a stirring motor (5) is fixedly connected to the top of the ground (1), a drain pipe (6) is fixedly connected inside the water purification tank (3), a cleaning mechanism (7) is installed inside the mixing tank (2), a disassembly mechanism (8) is installed inside the mixing tank (2), and a connecting water pipe (9) is detachably connected inside the disassembly mechanism (8). The cleaning mechanism (7) includes an installation tube (71), a connecting component (72) is rotatably connected to the outside of the installation tube (71), a limiting tube (73) is fixedly connected to the outside of the connecting component (72), a support tube (74) is rotatably connected to the other side of the limiting tube (73), and a plurality of scrapers (75) are fixedly connected to the outside of the support tube (74).

2. A combined filter tank for denitrification filtration according to claim 1, characterized in that: The connecting assembly (72) includes a rotating tube (721), a support column (722) is fixedly connected inside the rotating tube (721), a rotating column (723) is rotatably connected outside the support column (722), a plurality of mounting columns (724) are fixedly connected outside the rotating column (723), and a fixing column (726) is fixedly connected outside the rotating column (723).

3. A combined filter tank for denitrification filtration according to claim 1, characterized in that: The disassembly mechanism (8) includes a chuck one (81), a chuck two (82) is detachably connected inside the chuck one (81), a sealing ring (83) is detachably connected to the other side of the chuck two (82), and a positioning component (84) is detachably connected to the outside of the chuck two (82).

4. A combined filter tank for denitrification filtration according to claim 3, characterized in that: The locking assembly (84) includes a clamp one (841), a clamp two (842) is rotatably connected to the outside of the clamp one (841), a mounting bracket (843) is fixedly connected to the outside of the clamp one (841), another mounting bracket (843) is fixedly connected to the outside of the clamp two (842), a threaded column (844) is rotatably connected to the inside of the other mounting bracket (843), and a rotator (845) is threadedly connected to the outside of the threaded column (844).

5. A combined filter tank for denitrification filtration according to claim 1, characterized in that: The stirring motor (5) is externally fixedly connected to the inside of the mixing tank (2), and the limiting tube (73) is internally fixedly connected to the outside of the mounting tube (71).

6. A combined filter tank for denitrification filtration according to claim 2, characterized in that: Each of the mounting columns (724) has a water spray hole (725) inside, and the interior of the fixing column (726) is fixedly connected to the exterior of the support column (722).

7. A combined filter tank for denitrification filtration according to claim 3, characterized in that: The external of the connecting water pipe (9) is detachably connected to the inside of the first chuck (81), and the external of the mounting pipe (71) is detachably connected to the inside of the second chuck (82).

8. A combined filter tank for denitrification filtration according to claim 4, characterized in that: The external of the second clamp (842) is detachably connected to the external of the first chuck (81), and the external of the second clamp (842) is detachably connected to the external of the second chuck (82).

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