Two-stage AO-MBR combined sewage treatment system

Abstract

The utility model discloses a two-stage AO-MBR combined sewage treatment system which comprises a frame body, a first plate body is arranged at the frame body, a first anaerobic-aerobic membrane bioreactor is mounted at the first plate body, and vertical rods are connected to four corners of the frame body. The double-layer design of the first plate body and the second plate body is utilized, so that the first anaerobic-aerobic membrane bioreactor and the second anaerobic-aerobic membrane bioreactor can be placed in an upper layer and a lower layer, the limitation of conventional tiled serial connection is broken through by the upper and lower layer placement, only the vertical height space is expanded, and a large-area field required in a traditional mode can be greatly saved; a screw rod can be used for driving a vertical plate to transversely move subsequently, and a sliding chute at the vertical plate is matched with a round rod at a second plate body, so that the first plate body can laterally move to leave an operation space, and the second plate body is lowered to the ground, and personnel can conveniently contact a second anaerobic-aerobic membrane bioreactor at a short distance; and dismounting and maintenance are relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field related to AO-MBR, in particular to a two-stage AO-MBR combined sewage treatment system. Background Art

[0002] AOMBR (anaerobic aerobic membrane bioreactor) is a sewage treatment process that integrates anaerobic, aerobic treatment and membrane separation technologies. In the anaerobic stage, microorganisms metabolize organic matter into organic acids and alcohols, and partially produce methane; in the aerobic stage, microorganisms completely oxidize organic matter into carbon dioxide and water. Membrane separation relies on ultrafiltration or microfiltration membranes to intercept microorganisms and large molecular organic matter in the mud-water mixture to ensure high-quality and stable effluent. The two-stage AOMBR combination is to connect two AOMBR units in series to treat sewage. The first unit first performs preliminary anaerobic and aerobic treatment to reduce easily degradable organic matter and some suspended solids. Its effluent then enters the second unit, focusing on deep purification to strengthen the removal of difficult-to-degrade organic matter, nitrogen, phosphorus, etc., helping sewage meet higher discharge standards, which is efficient and practical.

[0003] While existing two-stage AOMBR combined wastewater treatment systems can handle wastewater treatment, they utilize two anaerobic membrane bioreactors (AOMBRs) in series, which typically takes up excessive floor space. This increases the length of pipes, the layout of power lines, and the complexity of control circuits. During daily operations, staff inspections expand, requiring more time and effort to maintain equipment and check operational status, resulting in increased operational costs and reduced efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing technology and propose a two-stage AO-MBR combined sewage treatment system.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A two-stage AO-MBR combined sewage treatment system includes a frame, a first plate body is provided on the frame, a first anaerobic aerobic membrane bioreactor is installed on the first plate body, vertical rods are connected to the four corners of the frame, multiple groups of the vertical rods are movably penetrated with the same second plate body, a second anaerobic aerobic membrane bioreactor is installed on the second plate body, the first anaerobic aerobic membrane bioreactor and the second anaerobic aerobic membrane bioreactor are connected in series through a pipe body, multiple groups of screws are rotatably connected to the frame, the outer walls of multiple groups of the screws are threadedly connected to the vertical plates, multiple groups of the vertical plates are connected to the first plate body, multiple groups of the vertical plates are provided with slide grooves, multiple groups of the slide grooves are slidably connected to the same round rod, and the round rod is connected to the second plate body.

[0007] Preferably, one end and the other end of the second plate body are both threadedly connected to a plurality of groups of bolts, and the plurality of groups of bolts are respectively threadedly connected to the corresponding vertical rods.

[0008] Preferably, multiple groups of triangular grooves are formed on each of the multiple groups of vertical plates.

[0009] Preferably, a motor is installed on the frame, and the motor is connected to the corresponding screw.

[0010] Preferably, the multiple groups of screw rods are connected to pulleys, and the multiple groups of pulleys are driven by belts.

[0011] Preferably, the first plate is rotatably connected with a plurality of rollers.

[0012] Preferably, one end and the other end of each of the plurality of groups of vertical rods are connected to a block, and each of the plurality of groups of blocks is in contact with the second plate.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the coordination among the frame, the first plate, the vertical rod, the second plate, the screw, the vertical plate, the chute and the round rod, and by utilizing the double-layer design of the first plate and the second plate, the first anaerobic aerobic membrane bioreactor and the second anaerobic aerobic membrane bioreactor can be placed in upper and lower layers. The upper and lower layer placement breaks the limitation of conventional flat-laying series connection and only expands the vertical height space, which can greatly save the large area required in the traditional mode and meet the needs of areas with scarce land resources. Subsequently, the screw can be used to drive the lateral movement of the vertical plate, and the chute at the vertical plate is coordinated with the round rod at the second plate to adjust the position of the first and second plates. The first plate is moved sideways to make room for operation, and the second plate is lowered to the ground, so that personnel can get close to the second anaerobic aerobic membrane bioreactor and it is relatively convenient when disassembly and maintenance are required.

[0015] 2. Through the coordination between the vertical rods, bolts and the second plate body, the bolts are connected to the threads of the second plate body and the corresponding vertical rods, which can increase the stability of the suspended placement of the second plate body when the first plate body and the second plate body are placed in the upper and lower layers, thereby ensuring the working stability during daily work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a two-stage AO-MBR combined sewage treatment system proposed in this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the first plate, the first anaerobic aerobic membrane bioreactor and the vertical rod;

[0018] Figure 3 for Figure 1A schematic diagram of the structure of the second plate body, the second anaerobic aerobic membrane bioreactor and the pipe body;

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the pulley, belt and motor;

[0020] Figure 5 for Figure 1 Schematic diagram of the structure of the middle vertical plate, slide and round rod.

[0021] In the figure: 1. frame; 2. first plate; 3. first anaerobic aerobic membrane bioreactor; 4. vertical rod; 5. second plate; 6. second anaerobic aerobic membrane bioreactor; 7. pipe; 8. screw; 9. vertical plate; 10. slide; 11. round rod; 12. pulley; 13. belt; 14. roller; 15. motor; 16. triangular groove; 17. block; 18. bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1, with reference to Figures 1 to 5, a two-stage AO-MBR combined sewage treatment system includes a frame 1, a first plate 2 is provided at the frame 1, a first anaerobic aerobic membrane bioreactor 3 is installed at the first plate 2, and vertical rods 4 are connected to the four corners of the frame 1. Multiple groups of vertical rods 4 are movably penetrated with the same second plate 5. This movable penetration connection method enables the second plate 5 to move up and down freely on the vertical rod 4, realizing a flexible layout of the double-layer plate. A second anaerobic aerobic membrane bioreactor 6 is installed at the second plate 5. The first anaerobic aerobic membrane bioreactor 3 and the second anaerobic aerobic membrane bioreactor 6 are connected in series through a pipe 7 to realize the orderly flow of sewage between the two reactors, carry out secondary deep treatment, and enhance the removal effect of pollutants such as difficult-to-degrade organic matter, nitrogen, and phosphorus. Multiple groups of screws 8 are rotatably connected to the frame 1, and the outer walls of the multiple groups of screws 8 are threadedly connected to the vertical plate 9 When the screw 8 drives the vertical plate 9 to move laterally, the round rod 11 slides in the slide groove 10. Due to the fixed relationship between the round rod 11 and the second plate body 5, the second plate body 5 will move up and down accordingly under the guidance of the vertical rod 4, thereby realizing the position adjustment of the first plate body 2 and the second plate body 5. When the second anaerobic aerobic membrane bioreactor 6 is disassembled and maintained, the screw 8 drives the vertical plate 9 to drive the first plate body 2 to move laterally. At the same time, the second plate body 5 moves down to the ground under the cooperation of the round rod 11 and the slide groove 10, providing convenient operating space for maintenance personnel, greatly reducing the maintenance difficulty and work intensity, and improving the maintainability and service life of the system.

[0024] In this embodiment, one end and the other end of the second plate body 5 are threadedly connected with multiple groups of bolts 18, and the multiple groups of bolts 18 are respectively threadedly connected to the corresponding vertical rods 4. When the system is operating normally, tightening the bolts 18 can increase the stability of the suspended placement of the second plate body 5, prevent it from accidentally shaking or displacing during operation, and ensure the stability and reliability of the entire system. Multiple groups of vertical plates 9 are provided with multiple groups of triangular grooves 16, and the design of the triangular grooves 16 has multiple functions. On the one hand, it can reduce the overall weight of the vertical plate 9 and reduce the load of the system without affecting its strength. On the other hand, it can increase the support stability of the vertical plate 9 to the round rod 11. A motor 15 is installed at the frame 1. The model of the motor 15 is selected according to actual work requirements. The motor 15 is connected to the corresponding screw 8. Multiple sets of screws 8 are connected with pulleys 12. Multiple sets of pulleys 12 are driven by belts 13. The transmission of the pulleys 12 and the belt 13 enables the motor 15 to drive the two sets of screws 8 to rotate synchronously. Multiple sets of rollers 14 are connected to the first plate 2 for rotation. The function of the rollers 14 is to contact the ground when the first plate 2 moves horizontally, making the movement process smoother. Multiple sets of vertical rods 4 are connected with blocks 17 at one end and the other end. Multiple sets of blocks 17 are in contact with the second plate 5. The blocks 17 play a role of limiting and guiding to prevent the second plate 5 from excessive movement or separation from the vertical rod 4, further improving the safety and stability of the system.

[0025] The working principle of this embodiment is as follows: when in use, the first anaerobic membrane bioreactor 3 and the second anaerobic membrane bioreactor 6 are connected in series through the pipe body 7 to perform secondary sewage discharge work. When the second anaerobic membrane bioreactor 6 needs to be disassembled for maintenance, the pipe body 7 is disconnected from the first anaerobic membrane bioreactor 3 and the second anaerobic membrane bioreactor 6. After disassembly, the motor 15 is connected to the external power supply and the drive device to cooperate with the two sets of pulleys 12 and belts 13 to rotate the two sets of screws 8 synchronously. In this way, the two sets of screws 8 will drive the two sets of vertical plates 9 and the first plate body 2 to move horizontally. At this time, the first plate body 2 will drive the first anaerobic membrane bioreactor 3 to move sideways to make room for operation. The second plate body 5 will continuously move downward with the help of the round rod 11 and the contact of the chute 10 at different positions on the vertical plate 9, and then move to the ground for placement, which can facilitate the disassembly and maintenance of the second anaerobic membrane bioreactor 6.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-stage AO-MBR combined sewage treatment system, comprising a frame (1), characterized in that: The frame (1) is provided with a first plate (2), and a first anaerobic aerobic membrane bioreactor (3) is installed on the first plate (2). The four corners of the frame (1) are connected with vertical rods (4), and multiple groups of the vertical rods (4) are movably connected to the same second plate (5). The second plate (5) is installed with a second anaerobic aerobic membrane bioreactor (6). The first anaerobic aerobic membrane bioreactor (3) and the second anaerobic aerobic membrane bioreactor (6) are connected in series through a pipe (7). The frame (1) is rotatably connected with multiple groups of screws (8), and the outer walls of the multiple groups of screws (8) are threadedly connected to vertical plates (9). The multiple groups of vertical plates (9) are connected to the first plate (2). The multiple groups of vertical plates (9) are provided with slide grooves (10). The multiple groups of slide grooves (10) are slidably connected to the same round rod (11), and the round rod (11) is connected to the second plate (5).

2. A two-stage AO-MBR combined sewage treatment system according to claim 1, characterized in that: One end and the other end of the second plate body (5) are both threadedly connected to a plurality of groups of bolts (18), and the plurality of groups of bolts (18) are respectively threadedly connected to the corresponding vertical rods (4).

3. A two-stage AO-MBR combined sewage treatment system according to claim 1, characterized in that: Multiple groups of triangular grooves (16) are provided at each of the multiple groups of vertical plates (9).

4. A two-stage AO-MBR combined sewage treatment system according to claim 1, characterized in that: A motor (15) is installed on the frame (1), and the motor (15) is connected to the corresponding screw rod (8).

5. A two-stage AO-MBR combined sewage treatment system according to claim 1, characterized in that: The plurality of groups of screw rods (8) are all connected with pulleys (12), and the plurality of groups of pulleys (12) are driven by belts (13).

6. A two-stage AO-MBR combined sewage treatment system according to claim 1, characterized in that: The first plate (2) is rotatably connected to a plurality of rollers (14).

7. A two-stage AO-MBR combined sewage treatment system according to claim 1, characterized in that: One end and the other end of the plurality of groups of vertical rods (4) are connected to blocks (17), and the plurality of groups of blocks (17) are in contact with the second plate (5).

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