MBR (Membrane Bioreactor) membrane pretreatment filtering device

Abstract

The utility model belongs to the technical field of MBR membrane pretreatment, and particularly relates to an MBR membrane pretreatment filtering device which comprises a through shell and a filtering plate, an annular limiting frame plate is fixedly connected to the inner wall of a lower end opening of the through shell, end fixing plates are placed on the surface of the upper end of the annular limiting frame plate, an MBR membrane main body is fixedly installed between the two end fixing plates, and the MBR membrane main body is fixedly connected with the filtering plate. A splicing and disassembling structure is connected between the through shell and the filter plate; according to the utility model, through the arrangement of the splicing and dismounting structure and the plugging and unplugging assembly, the through shell and the filter plate can be conveniently mounted and dismounted. During mounting, a rectangular insertion block at the lower end of the filter plate is inserted into a rectangular slot penetrating through the end part of the shell, and then a sliding plate is pushed by a reciprocating mechanism, so that a limiting insertion rod is inserted into a limiting insertion hole, and stable connection between the filter plate and the limiting insertion hole can be completed; during disassembly, the sliding plate is pulled through the reciprocating mechanism, so that the limiting insertion rod is separated from the limiting insertion hole, and the filter plate can be easily taken down.

Description

Technical Field

[0001] This utility model relates to the field of MBR membrane pretreatment technology, and in particular to an MBR membrane pretreatment filtration device. Background Technology

[0002] In numerous industrial production and environmental protection projects involving water treatment and chemical separation, MBR (membrane bioreactor) membrane filtration technology has been widely used due to its high efficiency in solid-liquid separation and excellent effluent quality. As a key component of this technology, the performance and reliability of the MBR membrane pretreatment filtration unit directly affect the overall system's operational effectiveness and efficiency.

[0003] Currently, common MBR membrane pretreatment filtration devices on the market have many shortcomings in structural design and connection methods, leading to numerous difficulties in equipment maintenance. The connection structure between the through-shell and filter plates in many devices is complex, often requiring various specialized tools and tedious operations by specially trained technicians to complete installation and disassembly. For example, some devices use bolted connections, requiring the loosening and tightening of numerous bolts individually when disassembling filter plates for cleaning, replacement, or repair. This not only consumes significant time and manpower but also increases the risk of bolt loss, damage, or improper installation, affecting equipment reassembly and normal operation. This inconvenience in maintenance greatly increases equipment downtime, reduces production efficiency, and increases operating costs for enterprises.

[0004] Besides maintenance inconvenience, existing MBR membrane pretreatment filtration devices also suffer from significant defects in connection stability. The connection structure of some devices cannot effectively guarantee a tight fit between components. During filtration, due to the impact of water flow and pressure changes, components are prone to loosening, displacement, or even detachment. For example, the MBR membrane body is not securely fixed within the through-shell, easily swaying or shifting upwards due to water flow impact, causing changes in the spacing between membrane fibers and affecting the membrane's filtration efficiency and lifespan. Simultaneously, loose connections between the through-shell and the filter plate can lead to leakage during filtration, causing unfiltered water to directly enter subsequent treatment stages, reducing effluent quality and failing to meet production or environmental protection requirements. This unstable connection severely impacts the performance and reliability of the filtration device, posing potential economic losses and environmental risks to enterprises. Therefore, we provide an MBR membrane pretreatment filtration device. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes an MBR membrane pretreatment filtration device, which more accurately solves the problems mentioned in the background art.

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

[0007] The utility model proposes an MBR membrane pretreatment filtration device, including a through shell and a filter plate. An annular limiting frame plate is fixedly connected to the inner wall of the lower port of the through shell. An end plate is placed on the upper surface of the annular limiting frame plate. An MBR membrane body is fixedly installed between the two end plates. A splicing structure connects the through shell and the filter plate.

[0008] The assembly structure includes a rectangular slot formed on the end surface of the through housing and a rectangular insert fixedly installed on the lower end surface of the filter plate. The rectangular insert is inserted into the inner wall of the rectangular slot, and a plug-in assembly is connected between the through housing and the rectangular insert.

[0009] The insertion and removal assembly includes a limiting insertion hole on the side of the rectangular insertion block and a rectangular groove on the end surface of the housing. A sliding plate is slidably connected to the inner wall of the rectangular groove. A limiting insertion rod is fixedly connected to the surface of the sliding plate. A reciprocating mechanism is connected between the rectangular groove and the sliding plate.

[0010] Furthermore, the reciprocating mechanism includes a strip-shaped mounting groove formed on the inner sidewall of the rectangular groove, a horizontal fixing rod fixedly connected between the two end walls of the strip-shaped mounting groove, a spring sleeved around the horizontal fixing rod, and a sliding sleeve block slidably sleeved around the horizontal fixing rod.

[0011] Furthermore, a retaining plate is fixedly connected to the lower end surface of the filter plate, and the lower end surface of the retaining plate is designed to contact the upper end surface of the end plate to resist and restrict the upward movement of the end plate.

[0012] Furthermore, the sliding sleeve is slidably connected to the inner wall of the strip-shaped mounting groove, and the opposite surfaces of the two sliding sleeves are fixedly connected to the two end surfaces of one of the sliding plates.

[0013] Furthermore, one end of the limiting rod penetrates the end wall of the rectangular groove 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.

[0014] Furthermore, one end of the spring is fixedly connected to the end wall of the strip-shaped mounting groove, and the other end of the spring is fixedly connected to one end surface of the sliding sleeve block.

[0015] The beneficial effects of this utility model are:

[0016] This invention achieves convenient installation and disassembly between the through-shell and the filter plate through a modular assembly and plug-in components. During installation, simply insert the rectangular block at the lower end of the filter plate into the rectangular slot at the end of the through-shell, and then use a reciprocating mechanism to push the sliding plate, causing the limiting rod to insert into the limiting hole, thus completing a stable connection. During disassembly, pull the sliding plate using the reciprocating mechanism to disengage the limiting rod from the limiting hole, allowing the filter plate to be easily removed. This design greatly simplifies the operation process, eliminating the need for complex tools and specialized skills. Workers can quickly replace or maintain the filter plate, significantly improving equipment maintenance efficiency, reducing time and cost losses due to equipment downtime, and ensuring the continuity of production or processing.

[0017] The combination of multiple connection structures in this invention ensures stable connections between components, thereby guaranteeing excellent filtration performance. The annular limiting frame provides a stable support platform for the end-fixing plate, and the contact design between the retaining plate and the end-fixing plate further restricts the upward movement of the end-fixing plate, keeping the MBR membrane body stable within the through-shell. This prevents displacement or damage to the MBR membrane body due to water flow impact or other factors, ensuring the stability and reliability of the filtration process. Simultaneously, the matching design of the limiting rod and limiting hole, as well as the cooperation between the spring and the sliding sleeve, ensures a tight and secure connection between the through-shell and the filter plate, preventing loosening or detachment during filtration. This ensures continuous and efficient operation of the filtration device, effectively removing impurities and pollutants from the water, improving filtration quality, and meeting the needs of actual production or treatment. Attached Figure Description

[0018] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the filter plate after disassembly in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the filter plate in one embodiment of the present invention;

[0021] Figure 4 This is one embodiment of the present utility model. Figure 2 Enlarged view of the structure at point A in the middle;

[0022] Figure 5 This is one embodiment of the present utility model. Figure 3 Enlarged view of the structure at point B in the middle.

[0023] In the diagram: 1. Through-shell; 2. Filter plate; 3. Annular limiting frame plate; 4. End fixing plate; 5. MBR membrane body; 6. Rectangular slot; 7. Rectangular insert block; 8. Limiting insertion hole; 9. Rectangular groove; 10. Sliding plate; 11. Limiting insertion rod; 12. Strip placement groove; 13. Horizontal fixing rod; 14. Spring; 15. Sliding sleeve block; 16. Abutment plate. Detailed Implementation

[0024] 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.

[0025] Example

[0026] like Figures 1-5 As shown, an embodiment of this utility model discloses an MBR membrane pretreatment filtration device, comprising a through-shell 1 and a filter plate 2. An annular limiting frame plate 3 is fixedly welded to the inner wall of the lower port of the through-shell 1. Two end plates 4 are stably placed on the upper surface of the annular limiting frame plate 3, and an MBR membrane body 5 is fixedly installed between the two end plates 4 by bolts. A disassembly structure connects the through-shell 1 and the filter plate 2, specifically: a rectangular slot 6 is opened on the end surface of the through-shell 1, and a rectangular insert 7 is fixedly welded to the lower surface of the filter plate 2. The rectangular insert 7 is accurately inserted into the inner wall of the rectangular slot 6 to achieve a preliminary connection. Simultaneously, a plug-in assembly connects the through-shell 1 and the rectangular insert 7, specifically: a limiting insertion hole 8 is opened on the side of the rectangular insert 7, a rectangular groove 9 is opened on the end surface of the through-shell 1, a sliding plate 10 is slidably connected to the inner wall of the rectangular groove 9, a limiting insertion rod 11 is fixedly welded to the surface of the sliding plate 10, and a reciprocating mechanism connects the rectangular groove 9 and the sliding plate 10. With the above structure, when the rectangular insert 7 is inserted into the rectangular slot 6, the reciprocating mechanism pushes the sliding plate 10, so that the limiting insert 11 is inserted into the limiting insertion hole 8, thereby achieving a stable connection between the through housing 1 and the filter plate 2. When disassembly is required, the reciprocating mechanism pulls the sliding plate 10, so that the limiting insert 11 is disengaged from the limiting insertion hole 8, and the filter plate 2 can be removed from the through housing 1.

[0027] Furthermore, a strip-shaped mounting groove 12 is formed on the inner wall of the rectangular groove 9. A horizontal fixing rod 13 is fixedly welded between the two end walls of the strip-shaped mounting groove 12. A spring 14 is sleeved around the horizontal fixing rod 13, and a sliding sleeve block 15 is slidably sleeved around the horizontal fixing rod 13. With this structure, when it is necessary to push the sliding plate 10 to insert the limiting rod 11 into the limiting insertion hole 8, the sliding sleeve block 15 slides along the horizontal fixing rod 13, compressing the spring 14, and the spring 14 generates elastic potential energy. When it is necessary to pull the sliding plate 10 to disengage the limiting rod 11 from the limiting insertion hole 8, the elastic potential energy of the spring 14 is released, pushing the sliding sleeve block 15 to slide in the opposite direction along the horizontal fixing rod 13, thereby driving the sliding plate 10 to move and realizing the insertion and removal action of the limiting rod 11.

[0028] Furthermore, a retaining plate 16 is fixedly welded to the lower surface of the filter plate 2, and the lower surface of the retaining plate 16 is designed to contact the upper surface of the end plate 4. In actual use, when the filter plate 2 is connected to the through housing 1, the retaining plate 16 will abut against the upper surface of the end plate 4, restricting the upward movement of the end plate 4, thereby ensuring the stability of the MBR membrane body 5 within the through housing 1 and preventing the end plate 4 from moving upward due to factors such as water flow impact during the filtration process, which would affect the filtration effect.

[0029] Furthermore, the sliding sleeve 15 is slidably connected to the inner wall of the strip-shaped mounting groove 12. Specifically, a slide rail is provided on the inner wall of the strip-shaped mounting groove 12, and a slide groove is provided on the side of the sliding sleeve 15, so that the slide groove and the slide rail cooperate to achieve a sliding connection. At the same time, the opposite surfaces of the two sliding sleeves 15 are fixedly connected to the two end surfaces of a sliding plate 10 by welding. In this way, when the sliding sleeve 15 slides in the strip-shaped mounting groove 12, it will drive the sliding plate 10 to slide in the rectangular groove 9, thereby realizing the insertion and removal action of the limiting rod 11 and ensuring the normal operation of the reciprocating mechanism.

[0030] Furthermore, one end of the limiting rod 11 is designed to penetrate the end wall of the rectangular groove 9 and be inserted into the inner wall of the limiting hole 8. The inner diameter of the limiting hole 8 and the outer diameter of the limiting rod 11 are designed to be compatible. In actual manufacturing, the inner diameter of the limiting hole 8 and the outer diameter of the limiting rod 11 are precisely controlled to keep the gap between them within a reasonable range. This ensures that the limiting rod 11 can be smoothly inserted into the limiting hole 8 and that the connection between the two is tight after insertion, preventing the limiting rod 11 from falling out of the limiting hole 8 during the filtration process. This ensures the stability of the connection between the shell 1 and the filter plate 2.

[0031] Furthermore, one end of the spring 14 is fixedly welded to the end wall of the strip-shaped mounting groove 12, and the other end of the spring 14 is fixedly welded to one end surface of the sliding sleeve block 15. Thus, when the sliding sleeve block 15 slides along the horizontal support rod 13, it compresses or stretches the spring 14, generating elastic potential energy. When the external force disappears, the elastic potential energy of the spring 14 is released, pushing the sliding sleeve block 15 to slide in the opposite direction along the horizontal support rod 13, thereby realizing the function of the reciprocating mechanism, ensuring that the limiting insertion rod 11 can smoothly complete the insertion and extraction action, and maintaining the stability and detachability of the connection between the through-shell 1 and the filter plate 2.

[0032] 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.

[0033] 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. A MBR membrane pretreatment filtering device, comprising a through housing (1) and a filtering plate (2), characterized in that, An annular limiting frame plate (3) is fixedly connected to the inner wall of the lower port of the through shell (1). An end plate (4) is placed on the upper surface of the annular limiting frame plate (3). An MBR membrane body (5) is fixedly installed between the two end plates (4). A disassembly structure is connected between the through shell (1) and the filter plate (2). The assembly structure includes a rectangular slot (6) opened on the end surface of the through housing (1) and a rectangular insert (7) fixedly installed on the lower end surface of the filter plate (2), and the rectangular insert (7) is inserted into the inner wall of the rectangular slot (6), and a plug-in assembly is connected between the through housing (1) and the rectangular insert (7). The plug-in assembly includes a limiting insertion hole (8) on the side of the rectangular plug (7) and a rectangular groove (9) on the end surface of the housing (1). A sliding plate (10) is slidably connected to the inner wall of the rectangular groove (9). A limiting plug rod (11) is fixedly connected to the surface of the sliding plate (10). A reciprocating mechanism is connected between the rectangular groove (9) and the sliding plate (10).

2. The MBR membrane pre-treatment filtering device according to claim 1, characterized in that, The reciprocating mechanism includes a strip-shaped mounting groove (12) opened on the inner side wall of the rectangular groove (9). A horizontal fixing rod (13) is fixedly connected between the two end walls of the strip-shaped mounting groove (12). A spring (14) is sleeved around the horizontal fixing rod (13). A sliding sleeve block (15) is slidably sleeved around the horizontal fixing rod (13).

3. The MBR membrane pre-treatment filtering device according to claim 1, characterized in that, The lower end surface of the filter plate (2) is fixedly connected to a retaining plate (16), and the lower end surface of the retaining plate (16) is designed to contact the upper end surface of the end plate (4) to resist and restrict the upward movement of the end plate (4).

4. The MBR membrane pre-treatment filter device according to claim 2, characterized in that, The sliding sleeve (15) is slidably connected to the inner wall of the strip-shaped mounting groove (12), and the opposite surfaces of the two sliding sleeves (15) are fixedly connected to the two end surfaces of a sliding plate (10).

5. The MBR membrane pre-treatment filtration device according to claim 1, characterized in that, One end of the limiting rod (11) passes through the end wall of the rectangular groove (9) and is inserted into the inner wall of the limiting hole (8), and the inner diameter of the limiting hole (8) is compatible with the outer diameter of the limiting rod (11).

6. The MBR membrane pre-treatment filter apparatus according to claim 2, characterized in that, One end of the spring (14) is fixedly connected to the end wall of the strip-shaped mounting groove (12), and the other end of the spring (14) is fixedly connected to one end surface of the sliding sleeve (15).

Images