Automatic cleaning and anti-blocking device for efficient MBR (Membrane Bioreactor) membrane

Abstract

The utility model provides a high-efficiency automatic cleaning and anti-blocking device for an MBR (Membrane Bioreactor) membrane, which relates to the technical field of MBR membranes and comprises a filter assembly, the filtering assembly comprises a mounting frame, and a filtering membrane group is mounted in the mounting frame; an impurity cleaning assembly; the impurity cleaning assembly comprises an air inlet pipe connected to one end of the filtering membrane group, the top end of the air inlet pipe is fixedly connected with an air distribution pipe, the top end of the air distribution pipe is fixedly connected with an air supply pipe, and one end of the air supply pipe is fixedly connected with an air pump; by means of the design, it can be ensured that air is evenly distributed on the multiple air inlet pipes, then air is applied to the interior of the filtering membrane set, impurities on the outer surface of the filtering membrane set are cleaned under the action of air pressure, the problem that the cleaning effect is not ideal due to external washing in the cleaning process is solved, and meanwhile the cleaning effect is improved while the impurities on the surface of the membrane are cleaned through bubbles. The water pump sucks cleaning liquid and discharges the cleaning liquid out of the membrane surface, the cleaning effect is further enhanced, and poor filtering effect caused by sewage concentration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of MBR membrane technology, and in particular to a high-efficiency automatic cleaning and anti-clogging device for MBR membranes. Background Technology

[0002] The constant-flow permeate MBR membrane reactor unit is a novel and highly efficient wastewater treatment process that combines efficient membrane separation technology with the traditional activated sludge process. It increases the organic load of biological treatment by maintaining a high concentration of activated sludge in the bioreactor, thereby reducing the footprint of the wastewater treatment facility, and reduces the amount of excess sludge by maintaining a low sludge load.

[0003] Currently, during long-term operation, the membrane surface of MBR membrane reactors is prone to the deposition of various impurities, which can lead to pore blockage or the formation of a fouling layer on the surface, thus seriously affecting the membrane flux and separation efficiency. These substances not only exacerbate membrane fouling but may also trigger chemical degradation of the membrane, shortening its service life.

[0004] Some existing technologies clean the MBR membrane by rinsing it from the outside, but in actual use, the rinsing pressure can cause some impurities to get stuck in the MBR membrane, resulting in poor cleaning effect.

[0005] Therefore, this utility model provides a high-efficiency automatic cleaning and anti-clogging device for MBR membranes. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a highly efficient automatic cleaning and anti-clogging device for MBR membranes.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency MBR membrane automatic cleaning and anti-clogging device, comprising;

[0008] A filter assembly; the filter assembly includes a mounting frame, and a filter membrane assembly is installed inside the mounting frame.

[0009] Impurity cleaning assembly; the impurity cleaning assembly includes an air inlet pipe connected to one end of a filter membrane assembly, an air distribution pipe fixedly connected to the top end of the air inlet pipe, an air delivery pipe fixedly connected to the top end of the air distribution pipe, and an air pump fixedly connected to one end of the air delivery pipe.

[0010] Wastewater treatment assembly; the wastewater treatment assembly includes a cover plate fixedly connected to a mounting frame, a water suction pipe fixedly connected to the top of the cover plate, a centralized adsorption pipe fixedly connected to the end of the water suction pipe away from the cover plate, and a water pump fixedly connected to one end of the centralized adsorption pipe.

[0011] In a preferred embodiment, a water outlet pipe is fixedly connected to the end of the mounting bracket away from the filter membrane assembly, and a guide pipe is fixedly connected to the bottom end of the water outlet pipe.

[0012] In a preferred embodiment, the outer side of the centralized adsorption tube is fixedly connected to the top of the outer side of the air supply tube.

[0013] In a preferred embodiment, the air supply pipe is fixedly connected to the outer side of the cover plate.

[0014] In a preferred embodiment, the end of the water outlet pipe away from the guide pipe is fixedly connected to the filter membrane assembly.

[0015] In a preferred embodiment, the outer side of the intake pipe is fixedly connected to the mounting bracket.

[0016] In a preferred embodiment, the cover plate is fitted inside the top of the filter membrane assembly.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] This invention uses an air pump to deliver air into the air supply pipe, and a distribution pipe to evenly distribute the air to each air inlet pipe. Since the outer side of the filter membrane assembly is often submerged in water, the air bubbles generated by the air jets clean impurities and move them upwards to the cover plate. The water pump is then activated to suck up the dirt through the suction pipe, ensuring internal cleanliness. This design ensures that air is evenly distributed across multiple air inlet pipes, and then air is applied to the inside of the filter membrane assembly. Under the action of air pressure, impurities on the outer surface of the filter membrane assembly are cleaned, avoiding the problem of unsatisfactory cleaning effect caused by external rinsing during the cleaning process. Furthermore, while the air bubbles clean impurities on the membrane surface, the water pump sucks up the cleaning liquid and discharges it from the membrane surface, further enhancing the cleaning effect and preventing the accumulation of wastewater that could lead to poor filtration. Attached Figure Description

[0019] Figure 1 A perspective view of a high-efficiency automatic cleaning and anti-clogging device for MBR membranes provided by this utility model;

[0020] Figure 2 A schematic diagram of the impurity cleaning component of a high-efficiency MBR membrane automatic cleaning and anti-clogging device provided by this utility model;

[0021] Figure 3 A schematic diagram of the impurity cleaning component of a high-efficiency MBR membrane automatic cleaning and anti-clogging device provided by this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the cover plate of an efficient MBR membrane automatic cleaning and anti-clogging device provided by this utility model.

[0023] Legend:

[0024] 1. Filter assembly; 11. Mounting bracket; 12. Filter membrane assembly; 13. Water outlet pipe; 14. Flow guide pipe; 2. Impurity cleaning assembly; 21. Air inlet pipe; 22. Air distribution pipe; 23. Air supply pipe; 24. Air pump; 3. Wastewater treatment assembly; 31. Cover plate; 32. Water suction pipe; 33. Centralized adsorption pipe; 34. Water pump. Detailed Implementation

[0025] 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.

[0026] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a high-efficiency MBR membrane automatic cleaning and anti-clogging device, comprising;

[0027] Filter assembly 1; Filter assembly 1 includes a mounting frame 11, a filter membrane assembly 12 is installed inside the mounting frame 11, a water outlet pipe 13 is fixedly connected to one end of the mounting frame 11 away from the filter membrane assembly 12, a guide pipe 14 is fixedly connected to the bottom end of the water outlet pipe 13, and the end of the water outlet pipe 13 away from the guide pipe 14 is fixedly connected to the filter membrane assembly 12.

[0028] The mounting bracket 11 is designed to provide a stable support structure for fixing and supporting the filter membrane module 12. This design ensures that the filter membrane module 12 can operate stably. The main function of the filter membrane module 12 is to intercept suspended solids and microorganisms in the water. Through this process, solid-liquid separation is achieved, which significantly improves the quality of the effluent. The outlet pipe 13 is closely connected to the filter membrane module 12 and is used to export the filtered clean water, ensuring that the final product of the water treatment process can meet the expected cleanliness standards. In addition, the guide pipe 14 connects the outlet pipe 13 and the filter membrane module 12. The guide pipe 14 is designed to guide the water flow and ensure that the water flow can flow smoothly from the filter membrane module 12 to the outlet pipe 13.

[0029] Impurity cleaning assembly 2; Impurity cleaning assembly 2 includes an air inlet pipe 21 connected to one end of the filter membrane assembly 12, the outer side of the air inlet pipe 21 is fixedly connected to the mounting bracket 11, the top end of the air inlet pipe 21 is fixedly connected to a distribution pipe 22, the top end of the distribution pipe 22 is fixedly connected to an air supply pipe 23, and one end of the air supply pipe 23 is fixedly connected to an air pump 24.

[0030] The air inlet pipe 21 is connected to one end of the filter membrane module 12 to introduce air into the system. Its function is to provide the necessary air to the membrane module for air-water oscillation and cleaning, maintaining membrane surface cleanliness and reducing membrane fouling. The top end of the air distribution pipe 22 is fixedly connected to the air inlet pipe 21. Its function is to evenly distribute the air in the air inlet pipe 21 to each air delivery pipe 23, ensuring that air can effectively reach each membrane module section that needs cleaning. The air distribution pipe 22 is designed with two openings of the same diameter and a middle diameter that is one-quarter the diameter of the two openings, allowing airflow from the air inlet pipe 21 to each air delivery pipe 23. Due to the smaller middle diameter, the gas flow velocity is increased, which helps reduce pressure loss and ensures that each air delivery pipe 23 receives a relatively balanced airflow, ensuring that each filter membrane module 12 achieves a cleaning effect. The air delivery pipe 23 is designed to transport the air delivered by the air pump 24, which provides compressed air and is the power source for the entire air supply system.

[0031] Wastewater treatment component 3; Wastewater treatment component 3 includes a cover plate 31 fixedly connected to the mounting frame 11, the inside of the cover plate 31 is fitted over the top of the filter membrane assembly 12, the outside of the air supply pipe 23 is fixedly connected to the outside of the cover plate 31, the top of the cover plate 31 is fixedly connected to a water suction pipe 32, the end of the water suction pipe 32 away from the cover plate 31 is fixedly connected to a centralized adsorption pipe 33, the outside of the centralized adsorption pipe 33 is fixedly connected to the top of the outside of the air supply pipe 23, and one end of the centralized adsorption pipe 33 is fixedly connected to a water pump 34.

[0032] The main function of the cover plate 31 is to cover and protect the filter membrane module 12, ensuring that the impurities and water generated during filtration are not spilled out. The main function of the suction pipe 32 is to extract the filtered wastewater from the membrane module area. The centralized adsorption pipe 33 collects the wastewater from the membrane module and then transports the water to the subsequent treatment stage through the water pump 34. The function of the water pump 34 is to provide power to extract the water from the suction pipe 32 and the centralized adsorption pipe 33 and transport it to the subsequent treatment stage.

[0033] Working principle:

[0034] like Figure 1 - Figure 4 As shown:

[0035] In use: During practical applications, when cleaning and maintenance of the outer surface of the filter membrane assembly 12 is required, the operator can start the air pump 24. After starting, the air pump 24 will deliver air into the air supply pipe 23. As the air flows in the air supply pipe 23, the air distribution pipe 22 will evenly distribute the air into each air inlet pipe 21. This design of the air distribution pipe 22 ensures that each air inlet pipe 21 receives a balanced airflow when passing through the air inlet pipe 21. Since the outer side of the filter membrane assembly 12 is always surrounded by water, the air flows from the inside of the filter membrane assembly 12 outwards. During the spraying process, bubbles are generated. As these bubbles rise, they remove impurities adhering to the filter membrane assembly 12. Driven by the bubbles, the impurities move upward from the bottom and eventually reach the top cover plate 31. At this point, the operator needs to start the water pump 34. The water pump 34 drives the centralized adsorption pipe 33 and the suction pipe 32. The suction force guides the water flow inside the cover plate 31 upward. When the water flow reaches the top of the inside of the cover plate 31, the water pump 34 continues to suck up and discharge the water containing dirt, thereby ensuring the cleaning effect inside the filter membrane assembly 12.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-efficiency MBR membrane automatic cleaning anti-blocking device, characterized in that, Include; Filter assembly (1); the filter assembly (1) comprises a mounting frame (11), the inside of the mounting frame (11) is mounted with filter membrane group (12); Impurity cleaning assembly (2); the impurity cleaning assembly (2) comprises an air inlet pipe (21) connected to one end of the filter membrane group (12), the top end of the air inlet pipe (21) is fixedly connected with a gas distribution pipe (22), the top end of the gas distribution pipe (22) is fixedly connected with a gas supply pipe (23), one end of the gas supply pipe (23) is fixedly connected with a gas pump (24); Sewage treatment assembly (3); the sewage treatment assembly (3) comprises a cover plate (31) fixedly connected to the mounting frame (11), the top end of the cover plate (31) is fixedly connected with a water suction pipe (32), the end of the water suction pipe (32) away from the cover plate (31) is fixedly connected with a concentrated adsorption pipe (33), one end of the concentrated adsorption pipe (33) is fixedly connected with a water pump (34).

2. The automatic cleaning and anti-blocking device for high-efficiency MBR membrane according to claim 1, characterized in that: The end of the water outlet pipe (13) away from the mounting frame (11) is fixedly connected with the water outlet pipe (13), and the bottom end of the water outlet pipe (13) is fixedly connected with the flow guide pipe (14).

3. The automatic cleaning and anti-blocking device for high-efficiency MBR membrane according to claim 1, characterized in that: The outside of the concentrated adsorption pipe (33) is fixedly connected to the top end of the outside of the gas supply pipe (23).

4. The automatic cleaning and anti-blocking device for high-efficiency MBR membrane according to claim 1, characterized in that: The outside of the gas supply pipe (23) is fixedly connected to the outside of the cover plate (31).

5. The automatic cleaning and anti-blocking device for high-efficiency MBR membrane according to claim 2, characterized in that: The end of the water outlet pipe (13) away from the flow guide pipe (14) is fixedly connected to the filter membrane group (12).

6. The automatic cleaning and anti-blocking device for high-efficiency MBR membrane according to claim 1, characterized in that: The outside of the air inlet pipe (21) is fixedly connected to the mounting frame (11).

7. The automatic cleaning and anti-blocking device for high-efficiency MBR membrane according to claim 1, characterized in that: The inside of the cover plate (31) is sleeved on the top end of the filter membrane group (12).

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