Rural sewage treatment facility MBR membrane cleaning device

Abstract

The utility model discloses a rural sewage treatment facility MBR membrane cleaning device which is characterized in that a movable support frame is arranged on the outer side of a cleaning box body in a sliding manner, a telescopic cylinder is mounted at the top of the movable support frame, one end of a telescopic rod of the telescopic cylinder is connected with a mounting plate, and a driving motor is mounted on the top surface of the mounting plate; the output end of the driving motor is connected with a mounting frame used for clamping an MBR membrane assembly, a flushing assembly is mounted on the outer side wall of the cleaning box body and comprises a flushing box, a plurality of flushing heads are mounted on the flushing box, the flushing heads penetrate through the cleaning box body and face the MBR membrane assembly, and a stirring assembly is further mounted on the side wall of the cleaning box body; according to the MBR membrane cleaning device, the two flushing assemblies are installed on the outer side wall of the cleaning box body and matched with the driving motor to drive the installation frame to rotate, an MBR membrane can be flushed in an all-dimensional and multi-angle mode, the stirring assembly is installed in the cleaning box body, an alkali washing solution for soaking can be evenly stirred, the alkali washing solution can fully flow, and the cleaning effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of MBR membrane cleaning technology, specifically to an MBR membrane cleaning device for rural sewage treatment facilities. Background Technology

[0002] MBR (Membrane Bioreactor) is a novel wastewater treatment system that organically combines membrane separation technology with biological treatment technology. It replaces the secondary sedimentation tank at the end of traditional biological treatment processes with membrane modules, maintaining a high concentration of activated sludge in the bioreactor, increasing the organic load of biological treatment, thereby reducing the footprint of wastewater treatment facilities and minimizing excess sludge by maintaining a low sludge load. It primarily utilizes membrane separation equipment immersed in an aerobic biological tank to retain activated sludge and large molecular organic matter. The activated sludge concentration (MLSS) in the membrane bioreactor system can be increased to 8000–10000 mg / L or even higher, and the sludge retention time (SRT) can be extended to over 30 days. With the increasing demand for rural wastewater treatment, MBR membrane technology is playing an increasingly important role in rural wastewater treatment, contributing to improving the rural living environment and comprehensively promoting rural revitalization.

[0003] For cleaning MBR membrane modules, the main methods include air aeration cleaning, online MBR membrane cleaning, water backwashing, and direct removal cleaning. Direct removal cleaning often involves manual rinsing with pressurized water using a high-pressure water gun, which increases manual labor, has low rinsing efficiency, and poor rinsing effect. Furthermore, the MBR membrane needs to be soaked after manual rinsing. Therefore, this utility model provides an MBR membrane cleaning device. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing MBR membrane cleaning processes, which require the use of high-pressure water guns for rinsing when directly removing the membrane for cleaning. This method increases manual labor, has low rinsing efficiency, poor rinsing effect, and requires soaking the MBR membrane after manual rinsing.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: It provides an MBR membrane cleaning device for rural sewage treatment facilities, including a cleaning tank. A movable support frame is slidably provided on the outer side of the cleaning tank. A telescopic cylinder is installed on the top of the movable support frame. One end of the telescopic rod of the telescopic cylinder is connected to an installation plate. A drive motor is installed on the top surface of the installation plate. The output end of the drive motor is connected to an installation bracket for mounting MBR membrane modules. A rinsing assembly is installed on the outer wall of the cleaning tank. The rinsing assembly includes a rinsing box, on which multiple rinsing heads are installed. The rinsing heads penetrate the cleaning tank and face the MBR membrane modules. A connecting pipe is provided on the top of the rinsing box. A stirring assembly is also installed on the side wall of the cleaning tank.

[0006] Furthermore, the mounting frame has slots at both the top and bottom, and four MBR membrane modules are mounted on the mounting frame at equal angles.

[0007] Furthermore, the rinsing assembly is installed on both of the two opposite outer side walls of the cleaning tank, and multiple rinsing heads are installed at equal intervals on the rinsing box. The connecting pipe is connected to an external pressurized water pump.

[0008] Furthermore, two stirring assemblies are installed on the outer wall of the cleaning chamber. Each stirring assembly includes a servo motor installed on the outer wall of the cleaning chamber, and the output end of the servo motor is connected to a stirring blade installed inside the cleaning chamber.

[0009] Furthermore, an inlet pipe and an outlet pipe are respectively installed on both sides of the cleaning tank, and a valve body is installed on both the inlet pipe and the outlet pipe.

[0010] Furthermore, the bottom of the movable support frame is provided with a slide rail, and the movable support frame slides on the slide rail under the control of the electrical mechanism.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By installing two rinsing components on the outer wall of the cleaning chamber, each rinsing component contains multiple rinsing heads. Together with the drive motor to rotate the mounting bracket, the MBR membrane can be rinsed from all directions and at multiple angles. This design ensures that dirt and impurities on the surface of the MBR membrane can be rinsed away, improving cleaning efficiency and cleanliness.

[0013] 2. The cleaning tank is equipped with two stirring components. The stirring blades are driven to rotate by a servo motor, which can uniformly stir the alkaline washing solution, make it flow fully, improve the cleaning effect, and prevent dirt from redepositing on the MBR membrane surface.

[0014] 3. The movable support frame slides along the slide rail under the control of the electrical mechanism. Combined with the telescopic cylinder, it can move the MBR membrane module in the mounting frame out of the cleaning chamber, which facilitates the installation, disassembly and cleaning of the MBR membrane module. Attached Figure Description

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

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure inside the cleaning box in this utility model;

[0018] Figure 4 This is an exploded view of the mounting bracket and MBR membrane module in this utility model.

[0019] In the diagram: 1-Cleaning tank, 2-Mobile support frame, 3-Telescopic cylinder, 4-Mounting plate, 5-Drive motor, 6-MBR membrane module, 7-Mounting frame, 8-Rinsing assembly, 9-Agitating assembly, 10-Inlet pipe, 11-Outlet pipe, 12-Slide rail, 71-Snap fastener, 81-Rinsing box, 82-Rinsing head, 83-Connecting pipe, 91-Servo motor, 92-Agitating blade. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Combination Figures 1 to 4 The MBR membrane cleaning device for a rural sewage treatment facility shown includes a cleaning tank 1. A movable support frame 2 is slidably provided on the outside of the cleaning tank 1. A telescopic cylinder 3 is installed on the top of the movable support frame 2. One end of the telescopic rod of the telescopic cylinder 3 is connected to an installation plate 4. A drive motor 5 is installed on the top surface of the installation plate 4. An installation bracket 7 for mounting MBR membrane modules 6 is connected to the output end of the drive motor 5. A rinsing assembly 8 is installed on the outer wall of the cleaning tank 1. The rinsing assembly 8 includes a rinsing box 81. Multiple rinsing heads 82 are installed on the rinsing box 81. The rinsing heads 82 penetrate the cleaning tank 1 and face the MBR membrane modules 6. A connecting pipe 83 is provided on the top of the rinsing box 81. A stirring assembly 9 is also installed on the side wall of the cleaning tank 1.

[0023] The mounting frame 7 has slots 71 at both the top and bottom. Four MBR membrane modules 6 are mounted on the mounting frame 7 at equal angles. Flushing components 8 are installed on the two opposite outer walls of the cleaning chamber 1. Multiple flushing heads 82 are installed at equal intervals on the flushing box 81. The connecting pipe 83 is connected to an external pressurized water pump. In use, the external pressurized water pump delivers cleaning water to the flushing box 81 through the connecting pipe 83. The cleaning water is sprayed onto the MBR membranes from the flushing heads 82. At the same time, the drive motor 5 is started to drive the mounting frame 7 to rotate, thereby driving the MBR membrane modules to rotate, so that the flushing heads 82 can thoroughly flush the four MBR membranes. The mounting frame 7 only has four MBR membrane modules installed to avoid the situation where multiple MBR membrane modules would block the cleaning water during cleaning. The drive motor 5 can be a geared motor to effectively control the speed at which it drives the mounting frame 7 to rotate.

[0024] The cleaning chamber 1 has an inlet pipe 10 and an outlet pipe 11 installed on both sides. Both the inlet pipe 10 and the outlet pipe 11 are equipped with valves. Two stirring components 9 are installed on the outer wall of the cleaning chamber 1. Each stirring component 9 includes a servo motor 91 mounted on the outer wall of the cleaning chamber 1, and the output end of the servo motor 91 is connected to a stirring blade 92 installed inside the cleaning chamber 1. When rinsing the MBR membrane using the rinsing component 8, the valve on the outlet pipe 11 can be opened to discharge the cleaning wastewater. After the rinsing wastewater is discharged, the valve is closed, and then an alkaline washing solution is introduced into the cleaning chamber 1 through the inlet pipe 10, ensuring the alkaline washing solution covers the MBR membrane. The MBR membrane is then soaked in the alkaline washing solution to ensure that the solution effectively removes dirt and contaminants from the membrane surface. During soaking, the servo motor 91 in the stirring component 9 is activated to drive the stirring blade 92 to stir the alkaline washing solution, ensuring it flows fully, improving the cleaning effect, and preventing dirt from redepositing on the MBR membrane surface. The soaking time should be at least 5 hours.

[0025] The bottom of the movable support frame 2 is provided with a slide rail 12. The movable support frame 2 slides on the slide rail 12 under the control of the electrical mechanism. After the MBR membrane is soaked, the telescopic cylinder 3 is activated to raise the mounting frame 7. Then, the external electrical mechanism is activated to control the movable support frame 2 to slide on the slide rail 12 to remove the mounting frame 7 and the MBR membrane module. The cleaned MBR membrane module can then be removed from the mounting frame 7.

[0026] The aforementioned electrical mechanism controls the sliding operation of the movable support frame 2 on the slide rail 12, which is existing technology. It can be achieved by installing pulleys at the bottom of the movable support frame 2, thereby allowing the pulleys to slide on the slide rail 12. The MBR membrane module includes MBR membrane fibers and mounting components for mounting the membrane fibers. The alkaline washing solution typically uses a 0.5% sodium hydroxide solution.

[0027] Working Principle: In use, the MBR membrane module is first installed on the mounting frame 7. Then, the mounting frame 7 is placed into the cleaning chamber 1 by sliding the movable support frame 2 and raising / lowering the telescopic cylinder 3. Next, an external pressurized water pump delivers cleaning water to the rinsing box 81 through the connecting pipe 83. The cleaning water is sprayed onto the MBR membrane from the rinsing head 82. Simultaneously, the drive motor 5 is started to rotate the mounting frame 7, thereby rotating the MBR membrane module. This allows the rinsing head 82 to thoroughly rinse the MBR membrane. During the rinsing of the MBR membrane... The valve on the outlet pipe 11 can be opened to discharge the cleaning wastewater. After the wastewater is discharged, the valve is closed, and then the alkaline washing solution is introduced into the cleaning tank 1 through the inlet pipe 10, ensuring that the alkaline washing solution covers the MBR membrane. The MBR membrane is then soaked in the alkaline washing solution. After the MBR membrane is soaked, the telescopic cylinder 3 is activated to raise the mounting frame 7. Then, the external electrical mechanism is activated to control the movable support frame 2 to slide on the slide rail 12 to remove the mounting frame 7 and the MBR membrane module. The cleaned MBR membrane module can then be removed from the mounting frame 7.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rural sewage treatment facility MBR membrane cleaning device, comprising a cleaning box body (1), a mobile support frame (2) is slidably arranged on the outer side of the cleaning box body (1), characterized in that: The top of the mobile support frame (2) is provided with a telescopic cylinder (3), one end of the telescopic rod of the telescopic cylinder (3) is connected and installed with a mounting plate (4), the top surface of the mounting plate (4) is installed with a driving motor (5), the output end of the driving motor (5) is connected with a mounting rack (7) for clamping an MBR membrane assembly (6), a flushing assembly (8) is installed on the outer side wall of the cleaning box body (1), the flushing assembly (8) comprises a flushing box (81), a plurality of flushing heads (82) are installed on the flushing box (81), the flushing heads (82) penetrate the cleaning box body (1) and are directed to the MBR membrane assembly (6), a connecting pipe (83) is arranged on the top of the flushing box (81), and a stirring assembly (9) is also installed on the side wall of the cleaning box body (1).

2. The rural wastewater treatment plant MBR membrane cleaning device according to claim 1, characterized in that: The upper and lower ends of the mounting rack (7) are provided with bayonets (71), and four MBR membrane assemblies (6) are equally angularly clamped on the mounting rack (7).

3. The rural wastewater treatment plant MBR membrane cleaning device according to claim 2, characterized by: The flushing assemblies (8) are installed on the two opposite outer side walls of the cleaning box body (1), a plurality of flushing heads (82) are equally spaced on the flushing box (81), and the connecting pipe (83) is connected with an external pressurized water pump.

4. The rural wastewater treatment plant MBR membrane cleaning device according to claim 3, characterized in that: Two stirring assemblies (9) are installed on the outer side wall of the cleaning box body (1), the stirring assembly (9) comprises a servo motor (91) installed on the outer side wall of the cleaning box body (1), and the output end of the servo motor (91) is connected and installed with stirring blades (92) arranged in the cleaning box body (1).

5. The rural wastewater treatment plant MBR membrane cleaning device according to claim 4, characterized by: Water inlet pipes (10) and water outlet pipes (11) are respectively installed on the two sides of the cleaning box body (1), and valve bodies are installed on the water inlet pipes (10) and the water outlet pipes (11).

6. The rural wastewater treatment plant MBR membrane cleaning device according to claim 5, characterized by: The bottom of the mobile support frame (2) is provided with a slide rail (12), and the mobile support frame (2) slides on the slide rail (12) under the control of an electrical mechanism.

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