MBR membrane treatment landfill leachate device

Abstract

The utility model belongs to the technical field of leachate treatment, and particularly relates to an MBR (Membrane Biological Reactor) membrane landfill leachate treatment device which comprises a box body and a top cover buckled on the periphery of an upper end opening of the box body, a placing through hole is formed in the surface of the top cover, a tubular MBR membrane is inserted into the inner wall of the placing through hole, a flushing pipe is connected with the side edge of the box body in a penetrating manner, and the flushing pipe is communicated with the box body. The flushing device is used for flushing the tubular MBR membrane; an external connecting pipe is fixedly mounted at the end part of the flushing pipe and is used for connecting and leading an external water source; through the design of the limiting mechanism and the reset component, the filter screen mounting frame is simple and convenient to disassemble and assemble. During installation, the reset component pushes the U-shaped plate, so that the limiting insertion rod is inserted into the limiting insertion hole to be quickly fixed; during dismounting, the mounting frame can be taken down by pulling the pulling handle. Therefore, the maintenance time is saved, and the labor cost is reduced. Meanwhile, the stability of the filter screen is guaranteed through the precisely-matched limiting structure, the filtering effect is improved, and the follow-up treatment requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of leachate treatment technology, and in particular to an MBR membrane treatment device for landfill leachate. Background Technology

[0002] In the field of waste management, the treatment of landfill leachate has always been a critical and extremely challenging aspect. Landfill leachate has a complex composition, containing large amounts of organic matter, heavy metals, ammonia nitrogen, and other pollutants. Direct discharge without effective treatment will cause serious pollution to soil, water bodies, and other environmental components. MBR (membrane bioreactor) technology has been widely used in landfill leachate treatment due to its high efficiency in solid-liquid separation and good effluent quality. However, existing MBR membrane treatment devices for landfill leachate still face many problems that urgently need to be solved in practical applications.

[0003] Currently, the filter installation structures of common MBR membrane treatment systems for landfill leachate are typically quite complex. During operation, impurities from the leachate gradually accumulate on the filter screens, requiring regular cleaning or replacement to maintain filtration efficiency. However, existing filter installation methods often necessitate the use of various specialized tools and tedious operations by skilled technicians for disassembly and assembly. For example, some systems use bolts to secure the filter screen mounting frame, requiring the loosening of numerous bolts during disassembly. This not only consumes significant time and manpower but also increases the risk of bolt loss, damage, or improper installation, affecting reassembly and normal operation. This inconvenient disassembly and assembly significantly increases downtime, reduces maintenance efficiency, and raises operating costs for businesses. Furthermore, because the filter screens cannot remain stable during filtration, they are prone to displacement or shaking, leading to unstable filtration results and difficulty in effectively removing impurities from the leachate, thus impacting subsequent treatment processes.

[0004] In existing MBR membrane treatment systems for landfill leachate, the connection between the top cover and the tank is often unreliable. During filtration, factors such as water flow impact and equipment vibration can cause the top cover to detach from the tank, leading to leachate leakage. This not only pollutes the environment but also affects the stability of the internal pressure, thus impacting filtration efficiency. Furthermore, tubular MBR membranes are prone to accumulating impurities on their surface over long-term use, resulting in membrane fouling, reduced membrane flux, and compromised filtration performance. Most existing systems lack effective membrane flushing mechanisms, failing to promptly remove impurities from the membrane surface, exacerbating membrane clogging, shortening membrane lifespan, and increasing operating costs. Therefore, we provide an MBR membrane treatment system for landfill leachate. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes an MBR membrane treatment device for landfill leachate, which more precisely solves the problems mentioned in the background section.

[0006] This utility model is achieved through the following technical solution:

[0007] The utility model proposes an MBR membrane treatment device for landfill leachate, including a tank and a top cover fastened to the outer periphery of its upper port. The surface of the top cover has a placement through hole, and a tubular MBR membrane is inserted into the inner wall of the placement through hole. A flushing pipe is connected through the side of the tank for flushing water onto the tubular MBR membrane.

[0008] An external connector is fixedly installed at the end of the flushing pipe for connecting to an external water source;

[0009] A placement frame is fixedly welded to the inner wall of the box, and an installation frame is placed on the upper surface of the placement frame. A filter screen is fixedly installed on the inner wall of the installation frame, and a limit mechanism is connected between the box and the installation frame.

[0010] The limiting mechanism includes a limiting insertion hole at the end of the mounting frame and a U-shaped plate that is snapped onto the outer periphery of the housing. A limiting insertion rod is fixedly connected to the inner top wall of the U-shaped plate, and a reset component is connected between the housing and the U-shaped plate.

[0011] Furthermore, the reset component includes a horizontally formed strip groove on the side of the housing, a fixing rod is fixedly connected between the two end walls of the strip groove, a spring is sleeved around the fixing rod, and a movable sleeve block is slidably sleeved around the fixing rod.

[0012] Furthermore, a limiting plate is fixedly connected to the top of the U-shaped plate to lock the top cover and restrict the separation of the box body and the top cover. A pull handle is fixedly connected to the top of the U-shaped plate.

[0013] Furthermore, the surface of the movable sleeve is fixedly connected to the inner wall of the U-shaped plate and slidably connected to the inner wall of the strip groove.

[0014] Furthermore, one end of the limiting rod penetrates the end wall of the housing and is inserted into the inner wall of the limiting hole, and the inner diameter of the limiting hole is compatible with the outer diameter of the limiting rod.

[0015] Furthermore, one end of the spring is fixedly connected to the end wall of the strip groove, and the other end of the spring is fixedly connected to one end surface of the movable sleeve block.

[0016] The beneficial effects of this utility model are:

[0017] This invention simplifies the assembly and disassembly of the filter screen mounting frame through the design of a limiting mechanism and a resetting component. During installation, the resetting component pushes the U-shaped plate, allowing the limiting rod to quickly insert into the limiting hole and secure it. For disassembly, simply pull the handle to remove the mounting frame. This saves maintenance time and reduces labor costs. Simultaneously, the precisely fitting limiting structure ensures filter screen stability, improves filtration efficiency, and meets subsequent processing requirements.

[0018] In this invention, the limiting plate at the top of the U-shaped plate can firmly lock the top cover in place, preventing it from detaching from the housing, ensuring the device's airtightness and internal pressure stability, and avoiding leachate leakage. The flushing pipe on the side of the housing can be connected to an external water source to flush the tubular MBR membrane, promptly removing impurities, preventing clogging, extending membrane life, ensuring filtration performance, and improving treatment efficiency and quality. Attached Figure Description

[0019] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the structure after the top cover and U-shaped plate are disassembled in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure between the U-shaped plate and the limiting plate in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the mounting frame in one embodiment of the present invention;

[0023] Figure 5 This is one embodiment of the present utility model. Figure 2 Enlarged view of the structure at point A in the middle.

[0024] In the diagram: 1. Box body; 2. Top cover; 3. Placement through hole; 4. Tubular MBR membrane; 5. Flushing pipe; 6. External pipe; 7. Placement frame; 8. Mounting frame; 9. Filter screen; 10. Limiting insertion hole; 11. Strip groove; 12. Fixing rod; 13. Spring; 14. Moving sleeve; 15. U-shaped plate; 16. Limiting insertion rod; 17. Limiting plate; 18. Pull handle. Detailed Implementation

[0025] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0026] Example

[0027] like Figures 1-5As shown in the figure, an embodiment of this utility model discloses an MBR membrane treatment device for landfill leachate, comprising a housing 1 and a top cover 2 fastened to the periphery of its upper port. A placement through-hole 3 is precisely formed on the surface of the top cover 2, and a tubular MBR membrane 4 is inserted through the inner wall of the placement through-hole 3, so that the tubular MBR membrane 4 is stably placed inside the housing 1. A flushing pipe 5 is welded through to the side of the housing 1, and an external connecting pipe 6 is threadedly fixed to the end of the flushing pipe 5. The external connecting pipe 6 can be connected to a water pipe from an external water source via a quick connector or other means. A placement frame 7 is welded to the inner wall of the housing 1, and a mounting frame 8 is stably placed on the upper surface of the placement frame 7. A filter screen 9 is bolted to the inner wall of the mounting frame 8. A limiting mechanism is connected between the housing 1 and the mounting frame 8. Specifically, a limiting insertion hole 10 is opened at the end of the mounting frame 8, a U-shaped plate 15 is snapped onto the periphery of the housing 1, a limiting insertion rod 16 is fixedly connected to the inner top wall of the U-shaped plate 15 by welding, and a reset component is connected between the housing 1 and the U-shaped plate 15. With the above structure, when the mounting frame 8 is placed on the placement frame 7, the reset component pushes the U-shaped plate 15, causing the limiting insertion rod 16 to insert into the limiting insertion hole 10, thereby limiting and fixing the mounting frame 8 and preventing it from shifting during filtration. When it is necessary to disassemble the mounting frame 8 for cleaning or replacement, the reset component pulls the U-shaped plate 15, causing the limiting insertion rod 16 to disengage from the limiting insertion hole 10, and the mounting frame 8 can be removed from the placement frame 7. At the same time, the flushing pipe 5 can flush water onto the tubular MBR membrane 4 to clean the tubular MBR membrane 4, prevent membrane clogging, and ensure its filtration performance.

[0028] Furthermore, a horizontally oriented strip groove 11 is formed on the side of the housing 1. A fixing rod 12 is welded and fixedly connected between the two end walls of the strip groove 11. A spring 13 is sleeved around the fixing rod 12, and a movable sleeve block 14 is slidably sleeved around the fixing rod 12. When it is necessary to push the U-shaped plate 15 to insert the limiting rod 16 into the limiting insertion hole 10, the movable sleeve block 14 slides along the fixing rod 12, compressing the spring 13, and the spring 13 generates elastic potential energy. When it is necessary to pull the U-shaped plate 15 to disengage the limiting rod 16 from the limiting insertion hole 10, the elastic potential energy of the spring 13 is released, pushing the movable sleeve block 14 to slide in the opposite direction along the fixing rod 12, thereby driving the U-shaped plate 15 to move, realizing the insertion and removal action of the limiting rod 16, and ensuring that the limiting mechanism can operate normally.

[0029] Furthermore, a limiting plate 17 is welded and fixedly connected to the top of the U-shaped plate 15. When the top cover 2 is fastened to the outer perimeter of the upper port of the housing 1, the limiting plate 17 can be engaged with the top cover 2, preventing the housing 1 and the top cover 2 from separating and ensuring the overall sealing and stability of the device. At the same time, a pull handle 18 is welded and fixedly connected to the top of the U-shaped plate 15. The operator can easily move the U-shaped plate 15 by pulling the handle 18, thereby realizing the limiting or releasing operation of the mounting frame 8, improving the ease of operation of the device.

[0030] Furthermore, the surface of the movable sleeve 14 is fixedly connected to the inner wall of the U-shaped plate 15 by welding, and a slide rail is provided on the inner wall of the strip groove 11, while a slide groove is provided on the side of the movable sleeve 14. This allows the movable sleeve 14 to slide slidably connected to the inner wall of the strip groove 11 through the cooperation of the slide groove and the slide rail. In this way, when the movable sleeve 14 slides in the strip groove 11, it will drive the U-shaped plate 15 to move, realizing the insertion and removal action of the limiting rod 16, ensuring that the reset component can operate stably and reliably, thereby ensuring the normal functioning of the limiting mechanism.

[0031] Furthermore, one end of the limiting rod 16 is designed to penetrate the end wall of the housing 1 and be inserted into the inner wall of the limiting hole 10. The inner diameter of the limiting hole 10 and the outer diameter of the limiting rod 16 are designed to be compatible. In actual manufacturing, the inner diameter of the limiting hole 10 and the outer diameter of the limiting rod 16 are precisely controlled to ensure that the gap between them is within a reasonable range. This ensures that the limiting rod 16 can be smoothly inserted into the limiting hole 10, and that the connection between the two is tight after insertion, preventing the limiting rod 16 from falling out of the limiting hole 10 during the filtration process. This ensures the stability of the mounting frame 8 within the housing 1 and ensures that the filter screen 9 can perform its filtration function normally.

[0032] Furthermore, one end of the spring 13 is fixedly connected to the end wall of the strip groove 11 by welding, and the other end of the spring 13 is fixedly connected to one end surface of the movable sleeve block 14 by welding. Thus, when the movable sleeve block 14 slides along the fixed rod 12, it compresses or stretches the spring 13, generating elastic potential energy. When the external force disappears, the elastic potential energy of the spring 13 is released, pushing the movable sleeve block 14 to slide in the opposite direction along the fixed rod 12, thereby realizing the function of the reset component, ensuring that the limiting rod 16 can smoothly complete the insertion and removal action, and maintaining the stability and reliability of the limiting mechanism's limiting and releasing operations on the mounting frame 8.

[0033] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An MBR membrane treatment device for landfill leachate, comprising a housing (1) and a top cover (2) fastened to the periphery of its upper port, wherein a placement through hole (3) is provided on the surface of the top cover (2), and a tubular MBR membrane (4) is inserted into the inner wall of the placement through hole (3), characterized in that, A flushing pipe (5) is connected through the side of the box (1) for flushing water onto the tubular MBR membrane (4); An external pipe (6) is fixedly installed at the end of the flushing pipe (5) for connecting to an external water source; A placement frame (7) is fixedly welded to the inner wall of the box (1), and an installation frame (8) is placed on the upper surface of the placement frame (7). A filter screen (9) is fixedly installed on the inner wall of the installation frame (8). A limit mechanism is connected between the box (1) and the installation frame (8). The limiting mechanism includes a limiting insertion hole (10) opened at the end of the mounting frame (8) and a U-shaped plate (15) snapped onto the periphery of the box (1). A limiting insertion rod (16) is fixedly connected to the inner top wall of the U-shaped plate (15), and a reset component is connected between the box (1) and the U-shaped plate (15).

2. The MBR membrane treatment device for landfill leachate according to claim 1, characterized in that, The reset component includes a strip groove (11) that is laterally opened on the side of the housing (1). A fixing rod (12) is fixedly connected between the two end walls of the strip groove (11). A spring (13) is sleeved around the fixing rod (12). A movable sleeve block (14) is slidably sleeved around the fixing rod (12).

3. The MBR membrane treatment device for landfill leachate according to claim 1, characterized in that, The top end of the U-shaped plate (15) is fixedly connected to a limiting plate (17) for locking the top cover (2) and restricting the separation of the box body (1) and the top cover (2). The top end of the U-shaped plate (15) is fixedly connected to a pull handle (18).

4. The MBR membrane treatment device for landfill leachate according to claim 2, characterized in that, The surface of the movable sleeve (14) is fixedly connected to the inner wall of the U-shaped plate (15) and slidably connected to the inner wall of the strip groove (11).

5. The MBR membrane treatment device for landfill leachate according to claim 1, characterized in that, One end of the limiting rod (16) penetrates the end wall of the box (1) and is inserted into the inner wall of the limiting hole (10), and the inner diameter of the limiting hole (10) is compatible with the outer diameter of the limiting rod (16).

6. The MBR membrane treatment device for landfill leachate according to claim 2, characterized in that, One end of the spring (13) is fixedly connected to the end wall of the strip groove (11), and the other end of the spring (13) is fixedly connected to one end surface of the movable sleeve (14).

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