Two-stage AAO integrated sewage treatment equipment

Abstract

The utility model relates to two-stage AAO (anaerobic-anoxic-oxic) integrated sewage treatment equipment, which belongs to the technical field of sewage treatment and comprises a bottom plate, one end of the top of the bottom plate is fixedly connected with a primary sedimentation tank, the other end of the top of the bottom plate is fixedly provided with a water quality detector, and the top of the bottom plate is fixedly provided with an adjusting tank positioned on one side of the primary sedimentation tank. A biochemical reaction tank is fixedly mounted at the center of the bottom plate. The sewage treatment device has the beneficial effects that when the filter plate in the filter box needs to be replaced in the sewage treatment process, the controller can be used for controlling the electromagnetic valve on the filter plate needing to be replaced to be closed, so that the corresponding branch pipe channel cannot convey sewage, and the other electromagnetic valve is controlled to be opened, and therefore, the sewage treatment device is convenient to operate. When the sewage treatment device works, sewage flows into the corresponding filter box through the opened branch pipe to be filtered, and at the moment, a worker can replace the filter plate in the filter box under the condition that the whole machine does not stop running, so that the working efficiency of sewage treatment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a two-stage AAO integrated sewage treatment device. Background Art

[0002] Sewage treatment: The process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. The AAO method, also known as the A2O method, is the abbreviation of the first letters of Anaerobic-Anoxic-Oxic (anaerobic-anoxic-aerobic method). It is a common sewage treatment process that can be used for secondary sewage treatment or tertiary sewage treatment and reclaimed water reuse. It has good nitrogen and phosphorus removal effects. After the anaerobic process, some difficult-to-degrade organic matter in the wastewater can be degraded and removed, thereby improving the biodegradability of the wastewater and providing a carbon source suitable for the denitrification process in the subsequent anoxic stage, ultimately achieving the goal of efficiently removing COD, BOD, N, and P. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering.

[0003] After searching, a Chinese patent discloses an A2O process sewage treatment device (authorization announcement number CN213506452U), which includes a grit chamber, an integrated tank, an aerobic tank, a secondary sedimentation tank, a reaction filtration tank and a disinfection tank. Although this patented technology can better separate sludge and remove impurities through aeration, biochemical degradation by adding drugs, filtration and disinfection, it improves sewage treatment from the process flow and enhances sewage treatment effect. Through the primary filtration device and biological reaction tank, adding drugs and stirring with a motor, the reaction is more thorough, and most of the difficult-to-degrade organic matter is removed at the same time, thereby improving the biodegradability of sewage. Through the secondary filtration device and water quality monitoring device, the difficult-to-degrade substances in the sewage are effectively removed, and the sewage removal effect is detected, so as to achieve the standardized operation of qualified discharge, thereby ensuring the quality stability and controllability of the sewage treatment process.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the filter device in the current two-stage AAO integrated sewage treatment equipment is under a heavy burden, and the filter plates need to be replaced frequently. The filter plates of the existing device are inconvenient to replace and require regular maintenance. The operation of the entire device needs to be stopped for maintenance, which seriously affects production efficiency. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a two-stage AAO integrated sewage treatment equipment.

[0006] The technical solution of the present utility model is as follows: a two-stage AAO integrated sewage treatment equipment, including a base plate, one end of the top of the base plate is fixedly connected to a primary sedimentation tank, the other end of the top of the base plate is fixedly installed with a water quality detector, the top of the base plate and on one side of the primary sedimentation tank is fixedly installed with a regulating tank, the center of the base plate is fixedly installed with a biochemical reaction tank, the top of the base plate and on both sides of the biochemical reaction tank are fixedly installed with a filter box, the top of the biochemical reaction tank is fixedly connected to a main pipe, the top of the main pipe is fixedly connected to two branch pipes, the ends of the branch pipes away from the main pipe respectively extend to the interior of the corresponding filter box, the top of the biochemical reaction tank is fixedly installed with a controller, and the branches of the branch pipe and the main pipe are fixedly installed with solenoid valves.

[0007] By adopting the above technical solution, the controller controls the solenoid valve on the filter plate that needs to be replaced to close, so that the corresponding branch pipe channel cannot transport sewage, and controls another solenoid valve to open. In this way, the sewage will flow into the corresponding filter box through the opened branch pipe for filtering. At this time, the staff can replace the filter plate in the filter box without stopping the entire machine, thereby improving the efficiency of sewage treatment.

[0008] As a preferred embodiment, a replacement mechanism is provided inside the filter box, and the replacement mechanism includes a card box equidistantly fixedly connected to both sides of the inner wall of the filter box, the card box is provided with a card slot inside, a filter plate is clamped between the two card slots, and two fixed slots are provided inside the card box, the fixed slots are slidably connected with a slider, a spring is fixedly connected between the slider and the inner wall of the fixed slot, and a column is fixedly connected to the side of the slider away from the spring, and holes are provided at both ends of the filter plate, and the columns are clamped with corresponding holes.

[0009] By adopting the above technical solution, the elastic force of the spring can push the slider to slide in the fixed groove, thereby enabling the plug post to extend into the socket in the filter plate, so that the plug post is engaged with the corresponding socket.

[0010] As a preferred embodiment, an unlocking mechanism is provided inside the fixed groove, and the unlocking mechanism includes inclined grooves opened inside the slider, and the interior of the inclined grooves is slidably connected to fixed columns, and the interior of the card box is slidably connected to two pull rods, and one end of the pull rods extends to the interior of the inclined grooves and is fixedly connected to the corresponding fixed columns.

[0011] By adopting the above technical solution, by pulling the pull rod, the fixed column is driven to slide in the corresponding inclined groove, which can then drive the slider and the plug column to move, so that the spring is squeezed and locked, and at the same time the plug column is released from the clamping state of the socket.

[0012] As a preferred embodiment, a buoyancy mechanism is provided inside the primary sedimentation tank, and the buoyancy mechanism includes a circulation pump 1 fixedly installed on the top of the regulating tank, the input end of the circulation pump 1 extends to the interior of the primary sedimentation tank and is fixedly connected to a bellows, the bottom of the bellows is fixedly connected to a suction head, the outside of the bellows is fixedly connected to a buoyancy ring, and the output end of the circulation pump 1 extends to the interior of the regulating tank.

[0013] By adopting the above technical solution and setting the buoyancy ring, the suction head can always float on the water surface, preventing the buoyancy ring from sinking into the sewage sedimentation layer and causing the buoyancy ring to be blocked by impurities.

[0014] As a preferred embodiment, a second circulation pump is fixedly installed on the top of the biochemical reaction tank, the output end of the second circulation pump extends to the interior of the biochemical reaction tank, and the input end of the second circulation pump extends to the interior of the regulating tank.

[0015] By adopting the above technical solution and setting up the second circulation pump, the sewage in the regulating tank can be transported to the interior of the biochemical reaction tank.

[0016] As a preferred embodiment, a circulation pump three is fixedly installed on the top of the base plate and on both sides of the water quality detector. The output end of the circulation pump three extends to the interior of the water quality detector, and the input end of the circulation pump three extends to the interior of the filter box.

[0017] By adopting the above technical solution and setting up the circulation pump three, the sewage in the filter box can be transported to the interior of the water quality detector.

[0018] As a preferred embodiment, a circulation pump four is built into the biochemical reaction pool, the output end of the circulation pump four is fixedly connected to the main pipe, and the input end of the circulation pump four extends to the interior of the biochemical reaction pool.

[0019] By adopting the above technical solution and setting up the circulation pump 4, the sewage from the biochemical reaction pool can be transported to the interior of the filter box.

[0020] As a preferred embodiment, a sealing door is hinged on the outside of the filter box, and the sealing door is made of visual glass. The end of the pull rod away from the fixed column extends to the outside of the filter box and is fixedly connected to a pull ring.

[0021] By adopting the above technical solution and setting a sealed door made of visual glass material, the condition of the filter plate in the filter box can be easily observed.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] 1. In the utility model, during the sewage treatment process, when the filter plate in the filter box needs to be replaced, the controller can control the solenoid valve on the filter plate that needs to be replaced to be closed, so that the corresponding branch pipe channel cannot transport sewage, and control another solenoid valve to open. In this way, the sewage will flow into the corresponding filter box through the opened branch pipe for filtering. At this time, the staff can replace the filter plate in the filter box without stopping the entire machine, thereby improving the working efficiency of sewage treatment.

[0024] 2. In the present invention, the elastic force of the spring can push the slider to slide in the fixed groove, so that the plug post can be extended to the socket in the filter plate, so that the plug post is engaged with the corresponding socket, thereby achieving the purpose of quick installation of the filter plate. When the damaged filter plate needs to be replaced or maintained, the pull rod can be pulled to drive the fixed post to slide in the corresponding inclined groove, thereby driving the slider and the plug post to move, so that the spring is squeezed and locked, and at the same time the plug post is separated from the engaged state of the socket, making the disassembly method more convenient, thereby achieving the purpose of quick disassembly of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model provides an overall three-dimensional diagram of a two-stage AAO integrated sewage treatment equipment;

[0026] Figure 2 The utility model provides a side view of a two-stage AAO integrated sewage treatment equipment;

[0027] Figure 3 The utility model provides a schematic diagram of the internal structure of the filter box of a two-stage AAO integrated sewage treatment equipment;

[0028] Figure 4 The utility model provides a schematic diagram of the internal structure of the card box of a two-stage AAO integrated sewage treatment equipment.

[0029] Legend: 1. Bottom plate; 2. Primary sedimentation tank; 3. Equalization tank; 4. Biochemical reaction tank; 5. Filter box; 6. Water quality detector; 7. Controller; 8. Main pipe; 9. Solenoid valve; 10. Branch pipe; 11. Filter plate; 12. Socket; 13. Card box; 14. Plug column; 15. Slider; 16. Inclined slot; 17. Fixed column; 18. Fixed slot; 19. Spring; 20. Bellows; 21. Buoyancy ring; 22. Suction head. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] Reference Figure 1-4 A two-stage AAO integrated sewage treatment equipment includes a bottom plate 1, one end of the top of the bottom plate 1 is fixedly connected to a primary sedimentation tank 2, the other end of the top of the bottom plate 1 is fixedly installed with a water quality detector 6, the top of the bottom plate 1 and on one side of the primary sedimentation tank 2 is fixedly installed with a regulating tank 3, the center of the bottom plate 1 is fixedly installed with a biochemical reaction tank 4, the top of the bottom plate 1 and on both sides of the biochemical reaction tank 4 are fixedly installed with a filter box 5, the top of the biochemical reaction tank 4 is fixedly connected with a main pipe 8, the top of the main pipe 8 is fixedly connected with two branch pipes 10, the ends of the branch pipes 10 away from the main pipe 8 respectively extend to the inside of the corresponding filter box 5, the top of the biochemical reaction tank 4 is fixedly connected with a main pipe 8, and the ends of the branch pipes 10 away from the main pipe 8 respectively extend to the inside of the corresponding filter box 5. A controller 7 is fixedly installed at the top, and solenoid valves 9 are fixedly installed at the branches of the branch pipe 10 and the main pipe 8. During the sewage treatment process and when the filter plate 11 in the filter box 5 needs to be replaced, the controller 7 can control the solenoid valve 9 on the filter plate 11 that needs to be replaced to be closed, so that the corresponding branch pipe 10 channel cannot transport sewage, and control the other solenoid valve 9 to open, so that the sewage will flow into the corresponding filter box 5 through the opened branch pipe 10 for filtering operation. At this time, the staff can replace the filter plate 11 in the filter box 5 without stopping the entire machine, so as to improve the working efficiency of sewage treatment.

[0032] Reference Figure 4 The filter box 5 is provided with a replacement mechanism inside, which includes a card box 13 fixedly connected to both sides of the inner wall of the filter box 5 at equal distances. The card box 13 is provided with a card slot inside, and a filter plate 11 is clamped between the two card slots. The card box 13 is provided with two fixed slots 18 inside, and the interior of the fixed slot 18 is slidably connected with a slider 15. The slider 15 and the inner wall of the fixed slot 18 are fixedly connected with a spring 19. The side of the slider 15 away from the spring 19 is fixedly connected with a plug post 14. Both ends of the filter plate 11 are provided with a socket 12, and the plug post 14 is clamped with the corresponding socket 12. The elastic force of the spring 19 can push the slider 15 to slide in the fixed slot 18, thereby enabling the plug post 14 to extend into the socket 12 in the filter plate 11, so that the plug post 14 is clamped with the corresponding socket 12, thereby achieving the purpose of quick installation of the filter plate 11, further improving the sewage treatment efficiency.

[0033] Reference Figure 4, an unlocking mechanism is provided inside the fixing groove 18, and the unlocking mechanism includes inclined grooves 16 that are all opened inside the slider 15, and the interior of the inclined grooves 16 is slidably connected with fixed columns 17, and the interior of the card box 13 is slidably connected with two pull rods, one end of the pull rods extends to the interior of the inclined grooves 16 and is fixedly connected to the corresponding fixed columns 17. When the damaged filter plate 11 needs to be replaced or maintained, the pull rod can be pulled to drive the fixed columns 17 to slide in the corresponding inclined grooves 16, and then the slider 15 and the plug column 14 can be driven to move, so that the spring 19 is squeezed and locked, and at the same time, the plug column 14 is separated from the clamping state of the socket 12, and the disassembly method is more convenient, thereby achieving the purpose of quick disassembly of the filter plate 11.

[0034] Reference Figure 2 A buoyancy mechanism is provided inside the primary sedimentation tank 2, and the buoyancy mechanism includes a circulation pump 1 fixedly installed on the top of the regulating tank 3. The input end of the circulation pump 1 extends to the interior of the primary sedimentation tank 2 and is fixedly connected to a bellows 20. A suction head 22 is fixedly connected to the bottom of the bellows 20, and a buoyancy ring 21 is fixedly connected to the outside of the bellows 20. The output end of the circulation pump 1 extends to the interior of the regulating tank 3. Through the setting of the buoyancy ring 21, the suction head 22 can always float on the water surface, preventing the buoyancy ring 21 from sinking into the sewage sedimentation layer and causing the buoyancy ring 21 to be blocked by impurities.

[0035] Reference Figure 1 A circulation pump 2 is fixedly installed on the top of the biochemical reaction tank 4. The output end of the circulation pump 2 extends to the interior of the biochemical reaction tank 4, and the input end of the circulation pump 2 extends to the interior of the regulating tank 3. Through the setting of the circulation pump 2, the sewage in the regulating tank 3 can be transported to the interior of the biochemical reaction tank 4.

[0036] Reference Figure 1 Circulation pump three is fixedly installed on the top of the bottom plate 1 and on both sides of the water quality detector 6. The output end of the circulation pump three extends to the interior of the water quality detector 6, and the input end of the circulation pump three extends to the interior of the filter box 5. Through the setting of the circulation pump three, the sewage in the filter box 5 can be transported to the interior of the water quality detector 6.

[0037] Reference Figure 2 A circulation pump four is built into the biochemical reaction pool 4. The output end of the circulation pump four is fixedly connected to the main pipe 8, and the input end of the circulation pump four extends to the interior of the biochemical reaction pool 4. Through the setting of the circulation pump four, the sewage from the biochemical reaction pool 4 can be transported to the interior of the filter box 5.

[0038] Reference Figure 2The outside of the filter box 5 is hinged with a sealed door, which is made of visual glass. The end of the pull rod away from the fixed column 17 extends to the outside of the filter box 5 and is fixedly connected with a pull ring. The sealing door made of visual glass material can be used to easily observe the condition of the filter plate 11 in the filter box 5.

[0039] Working principle: First, the sewage is discharged into the interior of the primary sedimentation tank 2 through the water inlet. During the sewage treatment process, when the filter plate 11 in the filter box 5 needs to be replaced, the controller 7 can control the solenoid valve 9 on the filter plate 11 to be replaced to be closed, so that the corresponding branch pipe 10 channel cannot transport sewage, and control the other solenoid valve 9 to open. In this way, the sewage will flow into the corresponding filter box 5 through the opened branch pipe 10 for filtering. At this time, the staff can replace the filter plate 11 in the filter box 5 without stopping the entire machine, thereby improving the working efficiency of sewage treatment.

[0040] When the damaged filter plate 11 needs to be replaced or maintained, the pull rod can be pulled to drive the fixing column 17 to slide in the corresponding inclined groove 16, which can drive the slider 15 and the plug column 14 to move, so that the spring 19 is squeezed and locked, and at the same time, the plug column 14 is disengaged from the clamping state of the socket 12, and the disassembly method is more convenient, thereby achieving the purpose of quick disassembly of the filter plate 11, and the elastic force of the spring 19 can push the slider 15 to slide in the fixing groove 18, so that the plug column 14 can extend to the socket 12 in the filter plate 11, so that the plug column 14 is clamped with the corresponding socket 12, thereby achieving the purpose of quick installation of the filter plate 11, and further improving the sewage treatment efficiency.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A two-stage AAO integrated sewage treatment equipment, comprising a bottom plate (1), characterized in that: One end of the top of the bottom plate (1) is fixedly connected to a primary sedimentation tank (2), the other end of the top of the bottom plate (1) is fixedly installed with a water quality detector (6), the top of the bottom plate (1) and located on one side of the primary sedimentation tank (2) is fixedly installed with a regulating tank (3), the center of the bottom plate (1) is fixedly installed with a biochemical reaction tank (4), the top of the bottom plate (1) and located on both sides of the biochemical reaction tank (4) are fixedly installed with a filter box (5), the top of the biochemical reaction tank (4) is fixedly connected to a main pipe (8), the top of the main pipe (8) is fixedly connected to two branch pipes (10), the ends of the branch pipes (10) away from the main pipe (8) respectively extend to the inside of the corresponding filter box (5), the top of the biochemical reaction tank (4) is fixedly installed with a controller (7), and the branches of the branch pipe (10) and the main pipe (8) are fixedly installed with solenoid valves (9).

2. The two-stage AAO integrated sewage treatment equipment according to claim 1, characterized in that: The filter box (5) is provided with a replacement mechanism inside, and the replacement mechanism includes a card box (13) fixedly connected to both sides of the inner wall of the filter box (5) at equal distances, the card box (13) is provided with a card slot inside, and a filter plate (11) is clamped between the two card slots, and the card box (13) is provided with two fixed slots (18) inside, and a slider (15) is slidably connected inside the fixed slot (18), and a spring (19) is fixedly connected between the slider (15) and the inner wall of the fixed slot (18), and a plug post (14) is fixedly connected to the side of the slider (15) away from the spring (19), and a socket (12) is provided at both ends of the filter plate (11), and the plug post (14) is clamped with the corresponding socket (12).

3. The two-stage AAO integrated sewage treatment equipment according to claim 2, characterized in that: An unlocking mechanism is provided inside the fixed groove (18), and the unlocking mechanism includes an inclined groove (16) provided inside the slider (15), and the interior of the inclined groove (16) is slidably connected to a fixed column (17), and the interior of the card box (13) is slidably connected to two pull rods, and one end of the pull rod extends to the interior of the inclined groove (16) and is fixedly connected to the corresponding fixed column (17).

4. The two-stage AAO integrated sewage treatment equipment according to claim 1, characterized in that: A buoyancy mechanism is provided inside the primary sedimentation tank (2), and the buoyancy mechanism includes a circulation pump 1 fixedly installed on the top of the regulating tank (3). The input end of the circulation pump 1 extends to the inside of the primary sedimentation tank (2) and is fixedly connected to a bellows (20). The bottom of the bellows (20) is fixedly connected to a suction head (22). The outside of the bellows (20) is fixedly connected to a buoyancy ring (21). The output end of the circulation pump 1 extends to the inside of the regulating tank (3).

5. The two-stage AAO integrated sewage treatment equipment according to claim 1 is characterized in that: A second circulation pump is fixedly installed on the top of the biochemical reaction pool (4), the output end of the second circulation pump extends to the interior of the biochemical reaction pool (4), and the input end of the second circulation pump extends to the interior of the regulating pool (3).

6. The two-stage AAO integrated sewage treatment equipment according to claim 1, characterized in that: Circulation pumps 3 are fixedly installed on the top of the bottom plate (1) and on both sides of the water quality detector (6). The output ends of the circulation pumps 3 extend into the interior of the water quality detector (6), and the input ends of the circulation pumps 3 extend into the interior of the filter box (5).

7. The two-stage AAO integrated sewage treatment equipment according to claim 1, characterized in that: A circulation pump 4 is built into the biochemical reaction pool (4), the output end of the circulation pump 4 is fixedly connected to the main pipe (8), and the input end of the circulation pump 4 extends into the interior of the biochemical reaction pool (4).

8. The two-stage AAO integrated sewage treatment equipment according to claim 3, characterized in that: The outside of the filter box (5) is hinged with a sealing door, and the sealing door is made of a visual glass material. The end of the pull rod away from the fixed column (17) extends to the outside of the filter box (5) and is fixedly connected to a pull ring.

Images