Sewage treatment aerobic tank

Abstract

The utility model provides a sewage treatment aerobic tank which comprises a tank body, an aeration pipeline is arranged at the bottom of the inner wall of the tank body, aeration discs are arranged at the upper end of the aeration pipeline at equal intervals, one end of the aeration pipeline is communicated with an air blower, and foam discharge pipes are arranged on the inner walls of the two sides of the tank body respectively. A foam inlet hole is formed in the side, close to the interior of the pool body, of the foam discharge pipe, the foam inlet hole is located below the upper end of sewage, and a fixing plate connected with the two ends of the pool body in an abutting mode is arranged at the upper end of the inner wall of the pool body. The fixing plate reciprocates in the horizontal direction of the tank body, so that the foam scraping plate is driven to move, foam is pushed to enter the foam inlet hole, and the foam flushing pipe inputs flushing liquid to enable the foam to enter the discharge pipe, so that the foam at the upper end of sewage is effectively eliminated.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an aerobic wastewater treatment tank. Background Technology

[0002] Aerobic wastewater treatment technology utilizes aerobic microorganisms to decompose and metabolize organic matter in wastewater under aerobic conditions. Wastewater first enters a primary sedimentation tank to remove larger suspended solids and particulate matter, and then enters an aeration tank where it is thoroughly mixed with activated sludge and aerated, allowing the microorganisms to perform aerobic decomposition. Floating foam is a common phenomenon in aerobic wastewater treatment. After prolonged use, a lot of foam will accumulate at the top of the wastewater in aerobic tanks, causing many adverse consequences such as reduced aeration efficiency, interference with sludge sedimentation, and odor emission. Existing aerobic tanks have rudimentary structural designs and lack foam elimination devices, resulting in poor foam elimination and often causing a large amount of foam to accumulate at the top of the wastewater. Utility Model Content

[0003] The problem this invention aims to solve is the poor foam elimination effect in aerobic ponds.

[0004] To solve the above-mentioned technical problems, this utility model provides an aerobic wastewater treatment tank, including a tank body. An aeration pipe is installed at the bottom of the inner wall of the tank body, and aeration discs are equidistantly arranged at the upper end of the aeration pipe. One end of the aeration pipe is connected to a blower. Foam discharge pipes are respectively installed on the inner walls of both sides of the tank body. Foam inlet holes are opened on the side of the foam discharge pipe closest to the inside of the tank body, located below the upper end of the wastewater. A fixed plate is installed at the upper end of the inner wall of the tank body, abutting against both ends of the tank body. Foam scraping plates are slidably connected to both ends of one side of the fixed plate in a vertical direction via guide rails. A vertical drive mechanism is installed at the upper end of the fixed plate, drivingly connected to the foam scraping plates. A horizontal drive mechanism is installed at the upper end of the tank body, drivingly connected to the fixed plate between the two sides of the tank body. The foam scraping plates are located in front of and parallel to the two foam discharge pipes. One end of the foam discharge pipe perpendicular to the foam inlet hole exits the tank body through an external discharge pipe, and the other end of the foam discharge pipe is provided with a foam flushing pipe.

[0005] Preferably, a sewage inlet pipe is connected to the upper part of one end of the pool body, and the sewage inlet pipe is located below the foam discharge pipe in the vertical direction.

[0006] Preferably, a sewage discharge pipe is connected to the lower part of one end of the pool.

[0007] Preferably, the vertical drive mechanism includes a vertical electric actuator and a first telescopic rod. There are two vertical electric actuators, which are mounted on both ends of the fixed plate via motor mounting brackets. The output end of the vertical electric actuator is mounted to one end of the first telescopic rod, and the other end of the first telescopic rod is mounted to the upper end of the foam scraping plate.

[0008] Preferably, the horizontal drive mechanism includes a horizontal electric actuator and a second telescopic rod. The horizontal electric actuator is mounted on the upper end of the pool body through a motor mounting base. The output end of the horizontal electric actuator is mounted to one end of the second telescopic rod, and the other end of the second telescopic rod is mounted to the fixing plate.

[0009] Preferably, the bottom of the inner wall of the foam discharge pipe is inclined downward and connected to the external discharge pipe.

[0010] Preferably, sliding guide rails are provided on both sides of the inside of the pool body, and sliding blocks that are slidably connected to the sliding guide rails are provided at both ends of the fixed plate.

[0011] Preferably, the two ends of the foam inlet hole are connected to the two ends of the inner wall of the pool.

[0012] Preferably, the foam rinsing pipe extends to the outside of the pool body and is connected to a rinsing water pump.

[0013] Preferably, a first baffle is provided on the side of the fixing plate away from the foam scraping plate, and a second baffle is provided on the side of the foam scraping plate away from the fixing plate.

[0014] Compared with the prior art, this utility model provides an aerobic wastewater treatment tank, which has the following beneficial effects:

[0015] 1. This utility model, by setting up a foam discharge pipe, a foam inlet hole, a foam flushing pipe, a vertical drive mechanism, a horizontal drive mechanism, a foam scraper, and a fixed plate, ensures that the upper end of the sewage is below the foam inlet hole. Foam at the upper end of the sewage, near the foam discharge pipe, enters the foam discharge pipe, inputting liquid into it, which in turn drives the foam into the external discharge pipe, thus discharging it to the outside of the tank. The vertical drive mechanism drives the foam scraper to move vertically on the side of the fixed plate, facilitating changes in the height of the foam scraper within the tank. When not in use, the foam scraper can be moved above the sewage. The horizontal drive mechanism drives the fixed plate to move back and forth horizontally within the tank, thereby moving the foam scraper and pushing the foam into the foam inlet hole, causing the foam to move to the foam inlet holes on both sides of the tank. This effectively eliminates foam at the upper end of the sewage, thus solving the problem of poor foam elimination in aerobic tanks. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the foam discharge pipe structure of this utility model;

[0019] Figure 4 This is a first schematic diagram of the connection structure between the foam scraping plate and the fixing plate of this utility model;

[0020] Figure 5 This is a second schematic diagram of the connection structure between the foam scraping plate and the fixing plate of this utility model.

[0021] In the diagram: 1. Tank body; 2. Aeration pipe; 3. Aeration disc; 4. Foam discharge pipe; 5. Foam inlet hole; 6. Fixing plate; 7. Foam scraping plate; 8. Vertical drive mechanism; 81. Vertical electric actuator; 82. First telescopic rod; 9. Horizontal drive mechanism; 91. Horizontal electric actuator; 92. Second telescopic rod; 10. Outer discharge pipe; 11. Foam flushing pipe; 12. Sewage inlet pipe; 13. Sewage discharge pipe; 14. Sliding guide rail; 15. Sliding block; 16. First baffle; 17. Second baffle. Detailed Implementation

[0022] This utility model relates to an aerobic tank for wastewater treatment, such as... Figure 1-5As shown, the system includes a tank body 1. An aeration pipe 2 is installed at the bottom of the inner wall of the tank body 1. Aeration discs 3 are evenly spaced at the upper end of the aeration pipe 2. One end of the aeration pipe 2 is connected to a blower. Foam discharge pipes 4 are installed on both sides of the inner wall of the tank body 1. Foam inlet holes 5 are opened on the side of the foam discharge pipe 4 closest to the inside of the tank body 1, located below the upper end of the wastewater. A fixed plate 6 is installed at the upper end of the inner wall of the tank body 1, abutting against both ends of the tank body 1. Foam scraping plates 7 are slidably connected to both ends of one side of the fixed plate 6 via guide rails in the vertical direction. A foam scraping plate 7 is installed at the upper end of the fixed plate 6. 7. A vertical drive mechanism 8 is connected to the transmission. A horizontal drive mechanism 9 is provided at the upper end of the tank body 1, which is connected to the fixed plate 6 between the two sides of the tank body 1. The foam scraper 7 is located in front of the two foam discharge pipes 4 and is parallel to the two foam discharge pipes 4. One end of the foam discharge pipe 4, which is perpendicular to the foam inlet hole 5, passes through the external discharge pipe 10 and exits the tank body 1. The other end of the foam discharge pipe 4 is provided with a foam flushing pipe 11. The tank body 1 is set as the main structure of the aerobic tank for sewage treatment. By setting up the aeration pipe 2 and the aeration disc 3, the blower inputs air into the aeration pipe 2. The wastewater then enters the aeration disc 3 through aeration pipe 2, generating bubbles in the wastewater inside tank 1. Aerobic microorganisms then degrade organic matter through biological metabolism in the presence of oxygen. A foam discharge pipe 4 and a foam inlet hole 5 are installed, with the upper end of the wastewater positioned below the foam inlet hole 5. The foam at the upper end of the wastewater is close to the foam discharge pipe 4, flowing with the wastewater and entering the foam discharge pipe 4. A foam flushing pipe 11 is installed to introduce liquid into the foam discharge pipe 4, which in turn carries the foam into the external discharge pipe 10, thus discharging it outside the tank 1. The vertical drive mechanism 8 drives the foam scraper 7 to move vertically on the side of the fixed plate 6, which facilitates changing the height of the foam scraper 7 in the upper tank 1. When not in use, the foam scraper 7 can be moved above the sewage. By setting the horizontal drive mechanism 9, the fixed plate 6 is driven to move back and forth in the horizontal direction of the tank 1, thereby driving the foam scraper 7 to move and push the foam into the foam inlet hole 5. This allows the foam to move towards the foam inlet holes 5 on both sides of the tank 1, which can efficiently eliminate the foam at the top of the sewage, thus solving the problem of poor foam elimination effect in aerobic tanks.

[0023] In an embodiment of this utility model, a sewage inlet pipe 12 is connected to the upper part of one end of the pool body 1. The sewage inlet pipe 12 is located below the foam discharge pipe 4 in the vertical direction. By setting the sewage inlet pipe 12, it is convenient to inject sewage into the pool body 1. By setting the sewage inlet pipe 12 to be located below the foam discharge pipe 4 in the vertical direction, sewage is prevented from being injected into the foam inlet hole 5.

[0024] In an embodiment of this utility model, a sewage discharge pipe 13 is connected to the lower part of one end of the pool body 1. By setting the sewage discharge pipe 13, it is convenient to discharge sewage from the pool body 1.

[0025] In an embodiment of this utility model, the vertical drive mechanism 8 includes a vertical electric actuator 81 and a first telescopic rod 82. There are two vertical electric actuators 81, which are mounted on both ends of the fixed plate 6 via motor mounting brackets. The output end of the vertical electric actuator 81 is mounted on one end of the first telescopic rod 82, and the other end of the first telescopic rod 82 is mounted on the upper end of the foam scraping plate 7. By setting the vertical electric actuator 81 and the first telescopic rod 82, the telescopic end of the vertical electric actuator 81 drives the first telescopic rod 82 to move, and the first telescopic rod 82 drives the foam scraping plate 7 to move vertically, which facilitates changing the height of the foam scraping plate 7.

[0026] In an embodiment of this utility model, the horizontal drive mechanism 9 includes a horizontal electric push rod 91 and a second telescopic rod 92. The horizontal electric push rod 91 is mounted on the upper end of the pool body 1 through a motor mounting base. The output end of the horizontal electric push rod 91 is mounted on one end of the second telescopic rod 92, and the other end of the second telescopic rod 92 is mounted on a fixing plate 6. By setting the horizontal electric push rod 91 and the second telescopic rod 92, the telescopic end of the horizontal electric push rod 91 drives the second telescopic rod 92 to move, and the second telescopic rod 92 drives the fixing plate 6 to move between the two sides of the inner wall of the pool body 1.

[0027] In this embodiment of the invention, the bottom of the inner wall of the foam discharge pipe 4 is inclined downward and connected to the outer discharge pipe 10. By setting the bottom of the inner wall of the foam discharge pipe 4 to be inclined downward, it is convenient for foam to be transmitted to the outer discharge pipe 10, thereby improving the foam discharge efficiency and avoiding blockage inside the foam discharge pipe 4.

[0028] In this embodiment of the utility model, sliding guide rails 14 are respectively provided on both sides of the inside of the pool body 1, and sliding blocks 15 are respectively provided at both ends of the fixed plate 6 to slide in connection with the sliding guide rails 14. By providing sliding guide rails 14 and sliding blocks 15, the two sides of the fixed plate 6 are slidably connected to the sliding guide rails 14 through the sliding blocks 15, thereby improving the stability of the fixed plate 6 in the horizontal direction.

[0029] In this embodiment of the invention, the two ends of the foam inlet hole 5 are connected to the two ends of the inner wall of the pool body 1. By setting the two ends of the foam inlet hole 5 to be connected to the two ends of the inner wall of the pool body 1, the foam inlet hole 5 covers the inside of the pool body 1, thereby improving the foam elimination effect.

[0030] In an embodiment of this utility model, the foam rinsing pipe 11 extends to the outside of the pool body 1 and is connected to a rinsing water pump. By setting up the rinsing water pump, rinsing liquid is input into the foam rinsing pipe 11 to improve the foam discharge effect.

[0031] In this embodiment of the utility model, a first baffle 16 is provided on the side of the fixed plate 6 away from the foam scraping plate 7, and a second baffle 17 is provided on the side of the foam scraping plate 7 away from the fixed plate 6. By providing the first baffle 16 and the second baffle 17, the top of the foam on the side of the fixed plate 6 and the side of the foam scraping plate 7 is blocked, so that the foam gathers below the first baffle 16 and the second baffle 17, making it easier for the foam to enter the foam inlet hole 5.

[0032] In operation, firstly, wastewater is injected into tank 1 through wastewater inlet pipe 12, along with aerobic sludge. After all wastewater and aerobic sludge are injected into tank 1, the wastewater inlet pipe 12 is sealed, ensuring that the upper end of the wastewater is below the foam discharge pipe 4. The blower is then started, drawing air into the aeration pipe 2, which then enters the aeration disc 3, generating bubbles in the wastewater inside tank 1. Aerobic microorganisms then perform biological metabolism in the presence of oxygen to degrade organic matter, thus purifying the wastewater. After foam accumulates at the upper end of the wastewater, the vertical electric actuator 81 and the horizontal electric actuator 81 are activated. The telescopic end of the vertical electric actuator 81 drives the first telescopic rod 82 to move. The first telescopic rod 82 drives the foam scraper 7 to move vertically, so that the bottom of the foam scraper 7 enters the upper part of the sewage. The telescopic end of the horizontal electric actuator 91 drives the second telescopic rod 92 to move. The second telescopic rod 92 drives the fixed plate 6 to move back and forth between the two sides of the inner wall of the tank 1, thereby driving the foam scraper 7 to move and push the foam into the foam inlet hole 5, so that the foam moves to the foam inlet holes 5 on both sides of the tank 1. The flushing liquid is input by the flushing water pump, thereby driving the foam into the external discharge pipe 10, and thus discharged to the outside of the tank 1.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An aerobic wastewater treatment tank, comprising a tank body (1), characterized in that, An aeration pipe (2) is provided at the bottom of the inner wall of the pool (1). An aeration disc (3) is provided at equal intervals at the upper end of the aeration pipe (2). A blower is connected to one end of the aeration pipe (2). Foam discharge pipes (4) are provided on the inner walls of both sides of the pool (1). Foam inlet holes (5) are opened on the side of the foam discharge pipe (4) near the inside of the pool (1). The foam inlet holes (5) are located below the upper end of the sewage. A fixing plate (6) is provided at the upper end of the inner wall of the pool (1) and abuts against both ends of the pool (1). Foam scrapers are slidably connected to both ends of one side of the fixing plate (6) in the vertical direction via guide rails. In addition to the plate (7), the upper end of the fixed plate (6) is provided with a vertical drive mechanism (8) that is connected to the foam scraping plate (7) for transmission. The upper end of the pool body (1) is provided with a horizontal drive mechanism (9) that is connected to the fixed plate (6) between the two sides of the pool body (1) for transmission. The foam scraping plate (7) is located in front of the two foam discharge pipes (4) and is parallel to the two foam discharge pipes (4). The end of the foam discharge pipe (4) perpendicular to the foam inlet hole (5) passes through the pool body (1) through the external discharge pipe (10). The other end of the foam discharge pipe (4) is provided with a foam rinsing pipe (11).

2. The aerobic wastewater treatment tank according to claim 1, characterized in that: The upper part of one end of the pool body (1) is connected to a sewage inlet pipe (12), which is located vertically below the foam discharge pipe (4).

3. The aerobic wastewater treatment tank according to claim 1, characterized in that: The lower part of one end of the pool (1) is connected to a sewage discharge pipe (13).

4. The aerobic wastewater treatment tank according to claim 1, characterized in that: The vertical drive mechanism (8) includes a vertical electric push rod (81) and a first telescopic rod (82). There are two vertical electric push rods (81) and they are installed at both ends of the fixed plate (6) through a motor mounting bracket. The output end of the vertical electric push rod (81) is installed at one end of the first telescopic rod (82), and the other end of the first telescopic rod (82) is installed at the upper end of the foam scraping plate (7).

5. The aerobic wastewater treatment tank according to claim 1, characterized in that: The horizontal drive mechanism (9) includes a horizontal electric push rod (91) and a second telescopic rod (92). The horizontal electric push rod (91) is installed on the upper end of the pool body (1) through a motor mounting base. The output end of the horizontal electric push rod (91) is installed at one end of the second telescopic rod (92), and the other end of the second telescopic rod (92) is installed at the fixing plate (6).

6. The aerobic wastewater treatment tank according to claim 1, characterized in that: The bottom of the inner wall of the foam discharge pipe (4) is inclined downward and is connected to the external discharge pipe (10).

7. The aerobic wastewater treatment tank according to claim 1, characterized in that: The sliding guide rails (14) are respectively provided on both sides of the inside of the pool body (1), and the sliding blocks (15) that are slidably connected to the sliding guide rails (14) are respectively provided at both ends of the fixing plate (6).

8. The aerobic wastewater treatment tank according to claim 1, characterized in that: The two ends of the foam inlet hole (5) are connected to the two ends of the inner wall of the pool body (1).

9. The aerobic wastewater treatment tank according to claim 1, characterized in that: The foam rinsing pipe (11) extends to the outside of the pool body (1) and is connected to a rinsing water pump.

10. The aerobic wastewater treatment tank according to claim 1, characterized in that: A first baffle (16) is provided on the side of the fixed plate (6) away from the foam scraping plate (7), and a second baffle (17) is provided on the side of the foam scraping plate (7) away from the fixed plate (6).

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