MBR membrane bioreactor sewage treatment device

Abstract

This utility model discloses an MBR (Membrane Bioreactor) wastewater treatment device, belonging to the technical field of wastewater treatment equipment. The device includes a membrane tank and a fixed shell within it, with an installation mechanism and a disassembly mechanism on the fixed shell. The installation mechanism includes an electric push rod and a multi-link rotating assembly composed of a rotating block, a rotating shaft, a fixed block, and a connecting block. Driven by the electric push rod, the fixed block can be automatically engaged and fixed to the bottom plate of the membrane tank. The disassembly mechanism is located inside the support frame, and through a pull rod linking the locking block and a spring, it enables the rapid disassembly and installation of the screen. Through the above structural design, this utility model solves the problems of low installation positioning accuracy, poor stability, and cumbersome and time-consuming disassembly and maintenance of membrane modules in the prior art. It achieves automated and precise installation of membrane modules and convenient and rapid maintenance, significantly improving the overall installation quality and operation and maintenance efficiency of the device, and has strong practical value.

Description

Technical Field

[0001] This utility model relates to the field of environmental engineering technology, and in particular to an MBR membrane bioreactor wastewater treatment device. Background Technology

[0002] Membrane bioreactors (MBRs), as a novel and highly efficient wastewater treatment technology that combines membrane separation technology with biological treatment technology, have been widely used in municipal and industrial wastewater treatment due to their excellent treatment effect and compact footprint. The core of an MBR system is the membrane module, and its installation status within the reactor directly affects the operational stability, treatment efficiency, and service life of the entire system.

[0003] In current technical practices, membrane module installation often involves manual hoisting and alignment, followed by fastening with bolts or pressure plates. However, this installation method, which relies heavily on manual operation, has inherent drawbacks. In the complex underwater environment of large membrane tanks, it is extremely difficult to ensure the ideal precision in the position and angle of each membrane module by relying entirely on manual labor. This results in an installation process that is not only time-consuming and labor-intensive, but also makes it difficult to effectively guarantee the quality of installation.

[0004] Furthermore, even slight deviations in installation location can lead to uneven water flow distribution on the membrane module surface. Some areas may have excessively high flow velocities, easily eroding the membrane surface, while other areas may become dead zones, exacerbating pollutant deposition. This not only reduces the overall membrane flux but also accelerates the membrane fouling process. More seriously, inaccurate installation can also cause adjacent membrane fibers or sheets to rub against each other under aeration disturbances, resulting in physical damage, significantly shortening the membrane module's lifespan, and increasing system maintenance costs.

[0005] Furthermore, the force applied by manual tightening is difficult to guarantee uniformity and consistency. Under the long-term effects of aeration scouring and water flow disturbance, membrane modules are prone to loosening or displacement. This instability further exacerbates the wear risk of membrane modules and poses a potential threat to the long-term stable operation of the system. Therefore, how to achieve rapid, accurate, and stable installation of membrane modules has become a technical bottleneck restricting further improvement in the efficiency of MBR technology.

[0006] Therefore, this invention proposes an MBR membrane bioreactor wastewater treatment device to address the shortcomings of existing technologies. Utility Model Content

[0007] In view of the problems of existing MBR membrane bioreactor wastewater treatment devices, such as membrane module installation relying on manual operation, low positioning accuracy, poor connection reliability, and cumbersome and time-consuming installation process, this utility model aims to provide an MBR membrane bioreactor wastewater treatment device with an improved structure that can effectively solve the above problems.

[0008] This utility model provides an MBR membrane bioreactor wastewater treatment device, including: a membrane tank, a fixed shell fixedly connected to the membrane tank, and an installation mechanism.

[0009] The main body of the installation mechanism is fixedly connected to the fixed shell. The installation mechanism has an electric push rod arranged in the vertical direction, a rotating block fixedly connected to the output end of the electric push rod, a rotating shaft fixedly connected to the rotating block and arranged horizontally, and a rotating assembly rotatably connected to the rotating shaft.

[0010] Furthermore, the rotating assembly, the fixed housing 1, and the membrane tank are combined in the following manner: the rotating assembly includes a fixed block rotatably connected to the rotating shaft 1, a rotating shaft 2 rotatably connected to the fixed block, a connecting block fixedly connected to the end of the rotating shaft 2 away from the fixed block, the connecting block rotatably connected to the rotating shaft 3, and the rotating shaft 3 fixedly connected to the top of the fixed housing 1; a bottom plate is fixedly connected to the bottom of the membrane tank, and the bottom plate is provided with a slot for the bottom of the fixed block to engage.

[0011] Preferably, a support frame is also fixedly connected to the base plate, and the support frame is equipped with a disassembly mechanism.

[0012] Preferably, the support frame also has a fixing component inside, which includes a fixing seat and a grid. The disassembly mechanism is connected to the fixing seat and is used to achieve a detachable snap-fit ​​fixation with the grid.

[0013] Preferably, the disassembly mechanism includes a pull rod, a locking block, and a rotating shaft four; the pull rod slides through the fixed seat, one end of the pull rod is rotatably connected to the middle of the locking block, and the rotating shaft four is rotatably connected to the locking block and its two ends are fixed to the inner wall of the fixed seat.

[0014] Preferably, the disassembly mechanism further includes a rotating rod, which is fixed to the pull rod, and the locking block is rotatably connected to the rotating rod through a through hole in the middle.

[0015] Preferably, the disassembly mechanism further includes a spring, which is sleeved on the pull rod, and the two ends of the spring abut against one side of the locking block and the inner wall of the fixing seat, respectively.

[0016] Preferably, the grid is provided with a groove that matches the shape of the front end of the card block.

[0017] Preferably, the mounting base provides an installation carrier for the entire disassembly mechanism, and the grille is detachably installed at the opening of the mounting base via the disassembly mechanism.

[0018] This utility model has the following beneficial effects: 1. This utility model solves the problems of large positioning deviation, unstable installation, and easy wear of membrane fibers caused by the reliance on manual installation of membrane modules in the prior art by setting up an installation mechanism driven by an electric push rod and with the coordinated operation of components such as a rotating shaft, a fixing block, and a connecting block. It achieves the effect of rapid and accurate positioning and locking of membrane modules, significantly improves the stability and reliability of installation, ensures the stability of membrane flux, and extends the service life of membrane modules.

[0019] 2. This utility model solves the problems of cumbersome disassembly and assembly processes, long downtime, and high labor intensity in the prior art when cleaning and maintaining membrane modules by setting up a disassembly mechanism that is linked by a pull rod, spring, locking block and rotating rod. The mechanism cooperates with the groove opened on the grid. It achieves the effect of quick disassembly and installation of grid and other components, greatly simplifies the cleaning operation, shortens the downtime for maintenance, and ensures the continuous and stable operation of the sewage treatment system.

[0020] 3. This utility model solves the problem of complex equipment structure and difficulty in balancing installation accuracy and maintenance convenience in the prior art by integrating the automated installation mechanism and the quick disassembly mechanism into an integrated device. It achieves a comprehensive technical effect of compact device structure, high degree of automation and high operation and maintenance efficiency throughout the entire life cycle. It not only ensures the quality of the initial installation, but also provides a strong guarantee for subsequent long-term stable operation and convenient maintenance, and improves the economy and practicality of the overall device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of an MBR membrane bioreactor wastewater treatment device proposed in this utility model; Figure 2 This is a schematic diagram of the membrane tank of an MBR membrane bioreactor wastewater treatment device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the support frame of an MBR membrane bioreactor wastewater treatment device proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0022] Legend: 1. Membrane tank; 2. Fixed shell 1; 3. Mounting mechanism; 31. Electric push rod; 32. Rotating block; 33. Rotating shaft one; 34. Rotating assembly; 341. Fixing block; 342. Rotating shaft two; 343. Connecting block; 344. Rotating shaft three; 345. Base plate; 4. Support frame; 5. Disassembly mechanism; 51. Pull rod; 52. Spring; 53. Rotating rod; 54. Locking block; 55. Rotating shaft four; 56. Fixing component; 561. Fixing base; 562. Grille. Detailed Implementation

[0023] Example 1, referring to Figures 1 to 5 This utility model provides an MBR membrane bioreactor wastewater treatment device, which aims to solve the problems of low installation and positioning accuracy and poor stability of MBR membrane modules in the prior art, as well as the cumbersome and time-consuming disassembly and maintenance process.

[0024] like Figure 1 and Figure 2 As shown, the MBR membrane bioreactor wastewater treatment device includes a membrane tank 1 and a fixed shell 2 fixedly connected to the membrane tank 1. An installation mechanism 3 is fixedly connected to the fixed shell 2. The main body of the installation mechanism 3 is fixedly connected to the fixed shell 2. The installation mechanism 3 is used to quickly and accurately fix the membrane module to the bottom of the membrane tank 1. The installation mechanism 3 includes an electric push rod 31 arranged vertically, a rotating block 32 fixedly connected to the output end of the electric push rod 31, a rotating shaft 33 fixedly connected to the rotating block 32 and arranged horizontally, and a rotating assembly 34 rotatably connected to the rotating shaft 33. After the electric push rod 31 is started, its output end drives the rotating block 32 to move up and down. The rotating block 32 then drives the rotating shaft 33 to rotate, providing a power source for the entire rotating assembly 34. The precise movement of the rotating assembly 34 ultimately locks or releases the membrane module.

[0025] Furthermore, referring to Figure 2 and Figure 3 The detailed structure of the rotating component 34 is as follows: it includes a fixed block 341 rotatably connected to the rotating shaft 33, a rotating shaft 342 rotatably connected to the fixed block 341, a connecting block 343 fixedly connected to the end of the rotating shaft 342 away from the fixed block 341, the connecting block 343 rotatably connected to the rotating shaft 344, and the rotating shaft 344 fixedly connected to the top of the fixed shell 2. This multi-link structure ensures that the fixed block 341 can move along a preset precise trajectory under the drive of the rotating shaft 33. A bottom plate 345 is fixedly connected to the bottom of the membrane tank 1. The bottom plate 345 is provided with a slot for the bottom of the fixed block 341 to be engaged. When the fixed block 341 rotates to the predetermined position, it can be stably and reliably engaged in the slot, thereby achieving a firm fixation of the entire membrane component.

[0026] Reference Figure 4 and Figure 5The support frame 4 provides structural support for the membrane module. It has a fixing component 56 fixedly connected inside. The fixing component 56 includes a fixing seat 561 as an installation carrier and a grid 562 that needs to be cleaned regularly. The fixing seat 561 provides an installation carrier for the entire disassembly mechanism 5. The grid 562 is detachably installed at the opening of the fixing seat 561 through the disassembly mechanism 5. The disassembly mechanism 5 is located inside the fixing seat 561 and forms a snap-fit ​​with the grid 562. Its function is to realize the quick locking and releasing of the grid 562.

[0027] Meanwhile, the disassembly mechanism 5 is specifically constructed as follows: it includes a pull rod 51, a locking block 54, and a rotating shaft 55. The pull rod 51 is slidably inserted through the fixed base 561, and one end of the pull rod 51 is rotatably connected to the middle of the locking block 54. The rotating shaft 55 is rotatably connected to the locking block 54 and its two ends are fixed to the inner wall of the fixed base 561. When the pull rod 51 is pulled, the pull rod 51 drives the locking block 54 to rotate around the rotating shaft 55, thereby separating the locking block 54 from the grille 562. This pivot structure with the pull rod 51 linked ensures that operators can quickly remove the grille 562 for maintenance without complicated tools, greatly improving the efficiency of operation and maintenance.

[0028] As a preferred embodiment, in order to further enhance the stability and wear resistance of the locking block 54 when rotating around the pull rod 51, refer to Figure 5 The disassembly mechanism 5 also includes a rotating rod 53, which is fixed to the pull rod 51. The locking block 54 is rotatably connected to the rotating rod 53 through a through hole in the middle. The rotating rod 53 provides a larger diameter rotation support surface for the locking block 54, reducing shaking and wear during rotation.

[0029] As another preferred embodiment, to achieve the automatic reset and locking function of the locking block 54, please refer to... Figure 5 The disassembly mechanism 5 also includes a spring 52, which is sleeved on the pull rod 51. The two ends of the spring 52 abut against one side of the locking block 54 and the inner wall of the fixing seat 561, respectively. When the pull rod 51 is pulled, the spring 52 is compressed. When the pull rod 51 is released, the elastic force of the spring 52 pushes the locking block 54 to rotate in the opposite direction, so that it automatically locks into the grille 562 and completes the locking.

[0030] As another preferred embodiment, to ensure a secure and reliable connection, please refer to... Figure 4 The grille 562 is provided with a groove that matches the shape of the front end of the locking block 54. When the locking block 54 is reset under the action of the spring 52, its front end can be precisely embedded in the groove to form a stable locking structure and prevent the grille 562 from loosening under the impact of water flow.

[0031] As another preferred embodiment, in order to clarify the installation relationship, the fixing base 561 provides an installation carrier for the entire disassembly mechanism 5, and its interior forms a cavity to accommodate the various components of the disassembly mechanism 5. The grille 562 is detachably installed at the opening of the fixing base 561 through the disassembly mechanism 5, together forming an integrated quick disassembly and assembly module.

[0032] The working principle is as follows: When the membrane module needs to be installed, the electric push rod 31 in the installation mechanism 3 is activated. The output end of the electric push rod 31 then drives the rotating block 32 to move up and down. Since the rotating block 32 is rotatably connected to the rotating shaft 33, the movement of the rotating block 32 drives the rotating shaft 33 to rotate. The rotating shaft 33 then drives the entire rotating assembly 34 to move. Under the coordinated guiding action of the rotating shaft 342, the connecting block 343 and the rotating shaft 344, the fixing block 341 fixed to the rotating shaft 33 will rotate along a precise trajectory until the bottom of the fixing block 341 is accurately inserted into the slot of the bottom plate 345 fixed at the bottom of the membrane tank 1. Through the coordinated action of the components of the installation mechanism 3, the membrane module is installed quickly, stably and with high precision, achieving automated installation and solving the problem of membrane fiber wear caused by installation deviation in the prior art.

[0033] When cleaning and maintenance of the grid 562 is required, the operator pulls the lever 51 of the disassembly mechanism 5 outward. The lever 51 slides in the fixed seat 561 and drives the locking block 54 to rotate around the rotating shaft 55. During the rotation, the locking block 54 compresses the spring 52, and its front end disengages from the groove on the grid 562. At this time, the grid 562 can be removed from the support frame 4 for cleaning. After cleaning, the grid 562 is put back in its original position, and the lever 51 is released. Under the elastic force of the spring 52, the locking block 54 will automatically rotate in the opposite direction and re-lock into the groove of the grid 562, completing the quick locking. Through this cooperation between the disassembly mechanism 5 and the fixing component 56, this utility model solves the problem of cumbersome and time-consuming disassembly and maintenance process of membrane components in the prior art.

Claims

1. A wastewater treatment device using an MBR membrane bioreactor, comprising a membrane tank (1) and a fixed shell (2) fixedly connected within the membrane tank (1), characterized in that, The device further includes an installation mechanism (3), the main body of which is fixedly connected to the fixed housing (2). The installation mechanism (3) includes an electric push rod (31) arranged vertically, a rotating block (32) fixedly connected to the output end of the electric push rod (31), a rotating shaft (33) fixedly connected to the rotating block (32) and arranged horizontally, and a rotating assembly (34) rotatably connected to the rotating shaft (33). The rotating assembly (34) includes a rotating component rotatably connected to the rotating shaft (33). A fixed block (341) is rotatably connected to a rotating shaft two (342). A connecting block (343) is fixedly connected to one end of the rotating shaft two (342) away from the fixed block (341). The connecting block (343) is rotatably connected to a rotating shaft three (344). The rotating shaft three (344) is fixedly connected to the top of the fixed shell one (2). A bottom plate (345) is fixedly connected to the bottom of the membrane pool (1). The bottom plate (345) is provided with a slot for the bottom of the fixed block (341) to be engaged.

2. The MBR membrane bioreactor wastewater treatment device according to claim 1, characterized in that, A support frame (4) is also fixedly connected to the base plate (345), and a disassembly mechanism (5) is provided inside the support frame (4).

3. The MBR membrane bioreactor wastewater treatment device according to claim 2, characterized in that, The support frame (4) is also fixed with a fixing component (56), which includes a fixing seat (561) and a grille (562). The disassembly mechanism (5) is connected to the fixing seat (561) and is used to achieve a detachable snap-fit ​​fixation with the grille (562).

4. The MBR membrane bioreactor wastewater treatment device according to claim 3, characterized in that, The disassembly mechanism (5) includes a pull rod (51), a locking block (54), and a rotating shaft (55); the pull rod (51) slides through the fixed seat (561), one end of the pull rod (51) is rotatably connected to the middle of the locking block (54), and the rotating shaft (55) is rotatably connected to the locking block (54) and its two ends are fixed to the inner wall of the fixed seat (561).

5. The MBR membrane bioreactor wastewater treatment device according to claim 4, characterized in that, The disassembly mechanism (5) further includes a rotating rod (53), which is fixed to the pull rod (51), and the locking block (54) is rotatably connected to the rotating rod (53) through a through hole in the middle.

6. The MBR membrane bioreactor wastewater treatment device according to claim 4, characterized in that, The disassembly mechanism (5) also includes a spring (52), which is sleeved on the pull rod (51), and the two ends of the spring (52) respectively abut against one side of the locking block (54) and the inner wall of the fixing seat (561).

7. The MBR membrane bioreactor wastewater treatment device according to claim 4, characterized in that, The grille (562) is provided with a groove that matches the shape of the front end of the card block (54) to enable the card block (54) to engage and disengage.

8. The MBR membrane bioreactor sewage treatment device according to claim 3, characterized in that, The mounting base (561) provides a mounting carrier for the entire disassembly mechanism (5), and the grille (562) is detachably mounted at the opening of the mounting base (561) through the disassembly mechanism (5).

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