A kind of MBR membrane cleaning device for domestic waste leachate treatment

Abstract

This utility model discloses an MBR membrane cleaning device for treating municipal solid waste leachate, belonging to the technical field of MBR membrane cleaning devices. It includes a base plate and a nozzle. A movable frame is slidably connected to the top of the base plate via a slide rail. Pipes are provided on both sides of the movable frame, and flexible hoses are fixedly connected to the bottom of the pipes. A pressure pump is fixedly connected to one end of each flexible hose, and the bottom of the pressure pump is fixed to the movable frame. A drive mechanism for moving the pipes is provided on the top of the movable frame. This MBR membrane cleaning device for treating municipal solid waste leachate allows the drive mechanism to move the pipes reciprocally, while the pressure pump delivers external cleaning solution into the pipes and sprays it out through the nozzle. Under the action of a guiding mechanism, the nozzle can reciprocate and oscillate simultaneously, thereby increasing the spraying range of the cleaning solution. The reciprocating motion mechanism causes the movable frame and the MBR membrane to shake, accelerating the removal of impurities from the MBR membrane.

Description

Technical Field

[0001] This utility model relates to the technical field of MBR membrane cleaning devices, specifically an MBR membrane cleaning device for treating municipal solid waste leachate. Background Technology

[0002] In the treatment of municipal solid waste leachate, MBR technology is widely used due to its high efficiency in solid-liquid separation. However, leachate has a complex composition, containing high concentrations of organic matter, suspended solids, colloids, and microbial flocs, which can easily lead to membrane fouling of the MBR membrane, such as organic fouling, inorganic scaling, and bioadhesion, resulting in decreased membrane flux and increased energy consumption. Therefore, it is necessary to clean the MBR membrane using an MBR membrane cleaning device.

[0003] For example, the MBR membrane cleaning equipment disclosed in utility model announcement CN217490442U is equipped with a motor, a reciprocating lead screw, and a limiting block. The motor can drive the reciprocating lead screw to rotate, thereby causing the limiting block to drive the spray pipe to reciprocate on the top of the MBR membrane frame. At this time, the spray pipe can spray the cleaning agent onto the MBR membrane relatively evenly for cleaning. This equipment can be directly fixed on the MBR membrane frame to clean the MBR membrane without requiring much manual operation, thus improving ease of use.

[0004] In the above-mentioned MBR membrane cleaning device, when cleaning the MBR membrane, the spray pipe needs to be driven by the drive device to move back and forth on the top of the MBR membrane to spray the agent onto the MBR membrane. However, because the MBR membrane is relatively high, the agent is difficult to contact the bottom of the MBR membrane, resulting in incomplete cleaning of the MBR membrane and affecting the cleaning effect of the MBR membrane. Utility Model Content

[0005] The purpose of this invention is to provide an MBR membrane cleaning device for treating municipal solid waste leachate, in order to solve the problem mentioned in the background art that the existing MBR membrane cleaning device drives the spray pipe to move back and forth on the top of the MBR membrane by a drive device to spray the agent onto the MBR membrane. However, because the MBR membrane is relatively high, the agent is difficult to contact the bottom of the MBR membrane, resulting in incomplete cleaning of the MBR membrane and affecting the cleaning effect of the MBR membrane.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an MBR membrane cleaning device for treating municipal solid waste leachate, comprising a base plate and nozzles. A movable frame is slidably connected to the top of the base plate via a slide rail. Pipes are provided on both sides of the movable frame. A flexible hose is fixedly connected to the bottom of each pipe, and a pressure pump is fixedly connected to one end of the flexible hose. The bottom of the pressure pump is fixed to the movable frame. A driving mechanism for moving the pipes is provided on the top of the movable frame. Multiple nozzles are rotatably connected to one side of the pipes via a rotating shaft. A guide mechanism is provided at the bottom of each nozzle. A reciprocating motion mechanism is provided on one side of the bottom of the movable frame.

[0007] Furthermore, the drive mechanism includes a servo motor fixedly installed on one side of the top of the base plate, and a threaded rod a is fixedly connected to the output end of the servo motor. The outer side of the threaded rod a is threadedly connected to the top of the pipe, and a slide rod is slidably connected to the bottom of the pipe.

[0008] Furthermore, the two ends of the slide rod are fixed to the movable frame, and the bottom of the pipe is provided with a through hole that matches the slide rod.

[0009] Furthermore, the guiding mechanism includes a guide rod that abuts against the bottom of the nozzle. The guide rod has a wavy shape, and both ends of the guide rod are fixed to the moving frame. A spring is connected to one end of the top of the nozzle, and the top of the spring is fixed to the pipe.

[0010] Furthermore, the reciprocating motion mechanism includes a drive motor fixedly installed on one side of the top of the base plate. The output end of the drive motor is fixedly connected to a connecting rod a. One end of the connecting rod a is rotatably connected to a connecting rod b via a rotating shaft. One end of the connecting rod b is rotatably connected to a connecting frame via a rotating shaft. Both ends of the connecting frame are fixed to the moving frame.

[0011] Furthermore, a threaded rod b is rotatably connected to the side of the movable frame near the connecting frame via a bearing. One end of the threaded rod b is rotatably connected to a limiting plate via a rotating shaft, and the bottom of the limiting plate abuts against the movable frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the MBR membrane cleaning device for treating municipal solid waste leachate can drive the pipeline to move back and forth through the drive mechanism, while the pressurizing pump can send the external medicine into the pipeline and spray it out through the nozzle. Under the action of the guide mechanism, the nozzle can move back and forth and swing back and forth at the same time, thereby increasing the spraying range of the medicine. The reciprocating motion mechanism can drive the moving frame and the MBR membrane to shake, accelerating the removal of impurities on the MBR membrane.

[0013] 1. By starting the servo motor, the threaded rod a is driven to drive the pipeline through the threaded transmission, which can drive the pipeline to move back and forth. When the nozzle moves with the pipeline, it will contact the wave-shaped guide rod, thus oscillating back and forth while moving, thereby increasing the spraying range and making the agent sprayed more evenly onto the MBR membrane on one side.

[0014] 2. By starting the drive motor, the connecting rod a rotates, which in turn causes the connecting rod b to swing. The connecting rod b will cause the moving frame and the MBR membrane to shake through the connecting frame, which will accelerate the removal of impurities from the MBR membrane. By rotating the threaded rod b, the limiting plate moves to clamp the MBR membrane, which can maintain the stability of the MBR membrane. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the movable frame of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the limiting plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the movable frame of this utility model;

[0019] Figure 5 This utility model Figure 1 A magnified structural diagram at point A;

[0020] Figure 6 This is a three-dimensional structural diagram of the connecting frame of this utility model.

[0021] In the diagram: 1. Base plate; 2. Moving frame; 3. Pipe; 4. Pressure pump; 5. Hose; 6. Servo motor; 7. Threaded rod a; 8. Slide rod; 9. Nozzle; 10. Spring; 11. Guide rod; 12. Threaded rod b; 13. Limiting plate; 14. Drive motor; 15. Connecting rod a; 16. Connecting rod b; 17. Connecting frame. Detailed Implementation

[0022] 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.

[0023] Example 1: Please refer to Figures 1-4This utility model provides the following technical solution: an MBR membrane cleaning device for treating municipal solid waste leachate, comprising a base plate 1 and nozzles 9. A movable frame 2 is slidably connected to the top of the base plate 1 via a slide rail, and pipes 3 are provided on both sides of the movable frame 2. A hose 5 is fixedly connected to the bottom of the pipe 3, and a pressure pump 4 is fixedly connected to one end of the hose 5. The bottom of the pressure pump 4 is fixed to the movable frame 2. A driving mechanism for moving the pipe 3 is provided on the top of the movable frame 2. Multiple sets of nozzles 9 are rotatably connected to one side of the pipe 3 via a rotating shaft, and a guide mechanism is provided at the bottom of the nozzles 9. When cleaning the MBR membrane, this MBR membrane cleaning device for treating municipal solid waste leachate can send it into the movable frame 2, then start the pressure pump 4 to send external chemical solution into the pipe 3, and then spray it out through the multiple sets of nozzles 9 on one side of the pipe 3 to clean the MBR membrane.

[0024] Please see Figures 1-2 The drive mechanism includes a servo motor 6 fixedly installed on one side of the top of the base plate 1. The output end of the servo motor 6 is fixedly connected to a threaded rod a7. The outer side of the threaded rod a7 is threadedly connected to the top of the pipe 3. The bottom of the pipe 3 is slidably connected to a slide rod 8. The two ends of the slide rod 8 are fixed to the moving frame 2. The bottom of the pipe 3 has a through hole that matches the slide rod 8. Starting the servo motor 6 can drive the threaded rod a7 to perform threaded transmission with the pipe 3, thereby driving the pipe 3 to move. By changing the forward and reverse rotation of the servo motor 6, the movement mode of the pipe 3 can be adjusted, so that the pipe 3 can move back and forth. The slide rod 8 slidably connected to the bottom of the pipe 3 can guide and limit it. At the same time, when the pipe 3 moves, it can drive multiple sets of nozzles 9 to move synchronously. When the pipe 3 moves, the nozzles 9 can spray different positions of the MBR membrane.

[0025] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 The guiding mechanism includes a guide rod 11 that abuts against the bottom of the nozzle 9. The guide rod 11 is wavy in shape, and both ends of the guide rod 11 are fixed to the moving frame 2. A spring 10 is connected to one end of the top of the nozzle 9, and the top of the spring 10 is fixed to the pipe 3. At the same time, when the nozzle 9 moves with the pipe 3, its bottom will contact the wavy guide rod 11. When the nozzle 9 contacts the crest of the guide rod 11, the nozzle 9 will be squeezed and rotated, thereby squeezing the spring 10 on the top side. When the nozzle 9 moves to the trough of the guide rod 11, the spring 10 will push the nozzle 9 to return to its original position. In this way, the nozzle 9 can swing back and forth while moving with the pipe 3, thereby increasing the spraying range and making the agent sprayed more evenly onto the MBR membrane on one side, thus improving the cleaning effect on the MBR membrane.

[0026] The above operations facilitate the uniform spraying of chemicals onto the MBR membrane.

[0027] Example 2:

[0028] Please see Figures 2-3 and Figure 6 Based on Embodiment 1, a reciprocating motion mechanism for shaking the MBR membrane in the movable frame 2 is also disclosed. Its specific structure is as follows: A reciprocating motion mechanism is provided on one side of the bottom of the movable frame 2. The reciprocating motion mechanism includes a drive motor 14 fixedly installed on one side of the top of the base plate 1. A connecting rod a15 is fixedly connected to the output end of the drive motor 14. One end of the connecting rod a15 is rotatably connected to a connecting rod b16 through a rotating shaft. One end of the connecting rod b16 is rotatably connected to a connecting frame 17 through a rotating shaft. Both ends of the connecting frame 17 are fixed to the movable frame 2. A threaded rod b12 is rotatably connected to the side of the movable frame 2 near the connecting frame 17 through a bearing. One end of the threaded rod b12 is rotatably connected to a limiting plate 13 through a rotating shaft. The bottom of the limiting plate 13 abuts against the movable frame 2.

[0029] Please see Figures 2-3 and Figure 6 This MBR membrane cleaning device for treating municipal solid waste leachate, after spraying the agent onto the MBR membrane, aims to react with the agent to remove impurities adhering to the MBR membrane. To facilitate rapid removal of these impurities, the drive motor 14 is activated. The drive motor 14 rotates the connecting rod a15, which in turn causes the connecting rod b16 to swing. The connecting rod b16, through the connecting frame 17, moves the moving frame 2 back and forth on the top of the base plate 1, causing the moving frame 2 to shake. This shaking accelerates the removal of impurities from the MBR membrane within the moving frame 2. To maintain the stability of the MBR membrane within the moving frame 2, the threaded rod b12 is rotated to drive the moving frame 2, thereby moving the limiting plate 13. The limiting plate 13 clamps and limits the MBR membrane within the moving frame 2, maintaining its stability. Through the above operations, the cleaning effect on the MBR membrane can be further improved.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An MBR membrane cleaning device for treating leachate from municipal solid waste, comprising a base plate (1) and a nozzle (9), wherein a movable frame (2) is slidably connected to the top of the base plate (1) via a slide rail, and pipes (3) are provided on both sides of the movable frame (2); Its features are: A hose (5) is fixedly connected to the bottom of the pipe (3), and a pressure pump (4) is fixedly connected to one end of the hose (5). The bottom of the pressure pump (4) is fixed to the moving frame (2). A driving mechanism for driving the pipe (3) to move is provided on the top of the moving frame (2). Multiple sets of nozzles (9) are rotatably connected to one side of the pipe (3) through a rotating shaft. A guide mechanism is provided at the bottom of the nozzle (9). A reciprocating motion mechanism is provided on one side of the bottom of the movable frame (2).

2. The MBR membrane cleaning device for treating municipal solid waste leachate according to claim 1, characterized in that: The drive mechanism includes a servo motor (6) fixedly installed on one side of the top of the base plate (1). The output end of the servo motor (6) is fixedly connected to a threaded rod a (7). The outer side of the threaded rod a (7) is threadedly connected to the top of the pipe (3). The bottom of the pipe (3) is slidably connected to a slide rod (8).

3. The MBR membrane cleaning device for treating municipal solid waste leachate according to claim 2, characterized in that: The two ends of the slide rod (8) are fixed to the moving frame (2), and the bottom of the pipe (3) is provided with a through hole that matches the slide rod (8).

4. The MBR membrane cleaning device for treating municipal solid waste leachate according to claim 1, characterized in that: The guiding mechanism includes a guide rod (11) that abuts against the bottom of the nozzle (9). The guide rod (11) has a wavy shape. Both ends of the guide rod (11) are fixed to the moving frame (2). A spring (10) is connected to one end of the top of the nozzle (9). The top of the spring (10) is fixed to the pipe (3).

5. The MBR membrane cleaning device for treating municipal solid waste leachate according to claim 1, characterized in that: The reciprocating motion mechanism includes a drive motor (14) fixedly installed on one side of the top of the base plate (1). The output end of the drive motor (14) is fixedly connected to a connecting rod a (15). One end of the connecting rod a (15) is rotatably connected to a connecting rod b (16) through a rotating shaft. One end of the connecting rod b (16) is rotatably connected to a connecting frame (17) through a rotating shaft. Both ends of the connecting frame (17) are fixed to the moving frame (2).

6. The MBR membrane cleaning device for treating municipal solid waste leachate according to claim 1, characterized in that: The movable frame (2) is rotatably connected to a threaded rod b (12) via a bearing on the side near the connecting frame (17). One end of the threaded rod b (12) is rotatably connected to a limiting plate (13) via a rotating shaft. The bottom of the limiting plate (13) abuts against the movable frame (2).

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