Membrane bio-reactor anti-winding type membrane scrubbing device

By incorporating a filter cartridge for air filtration and a motor-driven agitator structure in the membrane bioreactor, the problem of dust adhering to the membrane is solved, improving the membrane's scrubbing effect and wastewater treatment efficiency, and enabling automated warnings and intelligent operation.

CN224530730UActive Publication Date: 2026-07-21DONGGUAN YIWANGLI ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YIWANGLI ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing membrane bioreactor scrubbing devices, dust tends to adhere to the membrane during aeration, reducing the scrubbing effect.

Method used

An anti-winding membrane scrubbing device for membrane bioreactors was designed. By setting a filter element to filter air, combined with a motor-driven rotating rod and stirring rod, the contact area between air and wastewater is increased. When the filter element is clogged, an automatic warning is provided by electrode plates and a controller, thereby improving the intelligence and automation of the device.

Benefits of technology

This effectively prevents dust from contacting the membrane, improves the membrane's cleaning effect and wastewater treatment efficiency, and also enables automated and intelligent operation of the device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224530730U_ABST
    Figure CN224530730U_ABST
Patent Text Reader

Abstract

The utility model relates to membrane scrubbing device technical field, and disclose a kind of membrane bioreactor anti-winding type membrane scrubbing device, including membrane frame, the inner wall of membrane frame is equipped with membrane shelf, the outer wall of membrane frame is equipped with slot, the outer wall of membrane shelf is equipped with biological membrane, the top of membrane frame is respectively fixed with aeration tank and motor and is assembled.The membrane bioreactor anti-winding type membrane scrubbing device, by the membrane frame, membrane shelf, aeration tank, motor, rotating rod, stirring rod structure being set, so that the device in the operation process, utilize filter core to filter the air extracted, so that clean air and sewage and membrane mix, cooperate the operation of motor to let stirring rod stir sewage, sludge and air, increase the contact area of air and sewage, clean air can also be discharged to membrane so that clean air contacts membrane, avoid dust and membrane contact, and then improve the treatment effect of the device to sewage and the scrubbing effect of membrane.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of membrane scrubbing devices, specifically an anti-entanglement membrane scrubbing device for membrane bioreactors. Background Technology

[0002] Membrane bioreactor: A bioreactor in which a mixture of sludge and water in a biological treatment tank is pumped directly into a membrane tube. Under pressure, solid-liquid separation occurs. The clear water that permeates through the membrane enters the product water tank or is discharged directly, while the concentrated liquid returns to the biological treatment tank to continue participating in the biological reaction. To ensure the separation effect of the membrane, it is necessary to clean the membrane regularly.

[0003] While existing scrubbing devices can effectively scrub the membrane, they rely on aeration to perform the scrubbing operation. However, the extraction equipment lacks a mechanism to remove dust from the air. Consequently, dust comes into contact with the membrane along with the air during aeration, causing it to easily adhere to the membrane and reducing the scrubbing effect of existing devices. Therefore, we propose an anti-winding membrane scrubbing device for membrane bioreactors. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an anti-entanglement membrane scrubbing device for membrane bioreactors, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a membrane scrubbing device for an anti-winding membrane bioreactor, comprising a membrane frame, a membrane holder on the inner wall of the membrane frame, a slot on the outer wall of the membrane frame, a biofilm on the outer wall of the membrane holder, an aeration box and a motor fixedly mounted on the top of the membrane frame, a controller and a warning light fixedly mounted on the top of the aeration box, an air pump fixedly mounted on the top of the inner wall of the aeration box, an air inlet pipe connected to the air pump's input port, an installation groove on the inner wall of the air inlet pipe, a straight rod fixedly mounted on the inner wall of the installation groove, a spring sleeved on the outer wall of the straight rod, a lifting ring abutting the top of the spring, a filter element on the top of the lifting ring, a second electrode plate fixedly mounted on the bottom of the lifting ring, a first electrode plate fixedly mounted on the bottom of the inner wall of the installation groove, a rotating rod fixedly mounted on the output shaft of the motor, a stirring rod fixedly mounted on the outer wall of the rotating rod, and a water supply pipe penetrating the top of the membrane frame.

[0006] As a preferred embodiment of this invention, the number of motors is several, and the several motors are evenly distributed along the top of the membrane frame.

[0007] As a preferred embodiment of this utility model, the outer wall of the lifting ring is slidably connected to the inner wall of the mounting groove, and the lifting ring is made of galvanized iron.

[0008] As a preferred embodiment of this utility model, the top of the lifting ring is provided with a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the straight rod.

[0009] As a preferred embodiment of this utility model, the number of straight rods is two, and both straight rods are symmetrically distributed along the inner wall of the mounting groove.

[0010] As a preferred embodiment of this utility model, both electrode plate one and electrode plate two are electrically connected to the controller, and the controller is also electrically connected to the warning light.

[0011] In a preferred embodiment of this invention, the output port of the air pump is connected to the interior of the membrane frame, and the filter element is connected to the lifting ring by screws.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This membrane bioreactor anti-winding membrane scrubbing device, through its structure of membrane frame, membrane support, aeration box, motor, rotating rod, and stirring rod, allows the device to filter the extracted air during operation using a filter element. This mixes the clean air with the wastewater and membrane. The motor's operation, combined with the stirring rod's agitation of the wastewater, sludge, and air, increases the contact area between the air and wastewater. It also allows clean air to be discharged to the membrane, ensuring that clean air contacts the membrane and preventing dust from coming into contact with it. This, in turn, improves the device's wastewater treatment efficiency and membrane scrubbing effect.

[0014] 2. The membrane bioreactor anti-winding membrane scrubbing device, through the structure of electrode plate one, electrode plate two, lifting ring, straight rod, and spring, ensures that when the filter element becomes clogged during operation, the air pump will cause the lifting ring to descend along with the filter element, thereby bringing electrode plate one into contact with electrode plate two. This triggers the controller's warning light, serving as a warning and facilitating timely maintenance of the filter element by the user, thus improving the intelligence and automation of the device. Attached Figure Description

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

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a side sectional view of the present invention.

[0018] Figure 4 This is a schematic diagram of the internal structure of the aeration box of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Membrane frame; 2. Membrane holder; 3. Biofilm; 4. Aeration box; 5. Motor; 6. Water supply pipe; 7. Air inlet pipe; 8. Controller; 9. Warning light; 10. Slot; 11. Rotating rod; 12. Stirring rod; 13. Air pump; 14. Mounting slot; 15. Straight rod; 16. Spring; 17. Filter element; 18. Electrode plate one; 19. Electrode plate two; 20. Lifting ring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 A membrane cleaning device for an anti-winding membrane bioreactor includes a membrane frame 1, a membrane holder 2 on the inner wall of the membrane frame 1, a slot 10 on the outer wall of the membrane frame 1, a biofilm 3 on the outer wall of the membrane holder 2, an aeration box 4 and a motor 5 fixedly mounted on the top of the membrane frame 1, a controller 8 and a warning light 9 fixedly mounted on the top of the aeration box 4, an air pump 13 fixedly mounted on the top of the inner wall of the aeration box 4, an air inlet pipe 7 connected to the inlet of the air pump 13, and an installation groove on the inner wall of the air inlet pipe 7. 14. A straight rod 15 is fixedly mounted on the inner wall of the mounting groove 14. A spring 16 is sleeved on the outer wall of the straight rod 15. The top of the spring 16 abuts against a lifting ring 20. A filter element 17 is provided on the top of the lifting ring 20. An electrode plate 29 is fixedly mounted on the bottom of the lifting ring 20. An electrode plate 18 is fixedly mounted on the bottom of the inner wall of the mounting groove 14. A rotating rod 11 is fixedly mounted on the output shaft of the motor 5. A stirring rod 12 is fixedly mounted on the outer wall of the rotating rod 11. A water supply pipe 6 passes through the top of the membrane frame 1.

[0023] In the above structure, the membrane frame 1, membrane holder 2, biofilm 3, aeration box 4, motor 5, water supply pipe 6, air inlet pipe 7, controller 8, warning light 9, and slot 10 are arranged so that when the air pump 13 is working, it draws in outside air, which is then filtered by the filter element 17. This prevents dust in the air from contacting the biofilm 3 and interfering with the scrubbing operation of the biofilm 3, thus improving the scrubbing effect of the biofilm 3. In the process of sewage treatment, the motor 5 works in conjunction with the rotating rod 11 to achieve the effect of stirring the sewage and the discharged air, increasing the contact area between the air and the sewage, thereby improving the sewage treatment effect of the device.

[0024] In a preferred embodiment, there are several motors 5, and all of the motors 5 are evenly distributed along the top of the membrane frame 1.

[0025] In the above structure, the operation of several motors 5 causes multiple sets of rotating rods 11 to rotate, thereby enabling the rotating rods 11 and the stirring rods 12 to stir and tumble the sewage, thus increasing the contact area between the stirring rods 12 and the sewage and further improving the aeration effect of the device.

[0026] In a preferred embodiment, the outer wall of the lifting ring 20 is slidably connected to the inner wall of the mounting groove 14, and the lifting ring 20 is made of galvanized iron.

[0027] In the above structure, galvanized iron has the characteristics of hardness and wear resistance, which can effectively reduce the wear of the lifting ring 20 during the operation process, thereby extending the service life of the lifting ring 20. At the same time, galvanized iron also has the characteristics of low cost, thereby reducing the production and maintenance costs of the device.

[0028] In a preferred embodiment, the top of the lifting ring 20 is provided with a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the straight rod 15.

[0029] In the above structure, through the through holes and straight rod 15, during the operation of the air pump 13, the filter element 17 filters the air, allowing clean air to come into contact with the sewage, thus preventing dust from dissolving in the sewage and improving the scrubbing effect of the biofilm 3. However, the dust adsorption effect of the filter element 17 will cause it to gradually become clogged. By increasing the air pressure, the clogged filter element 17, along with the lifting ring 20, descends, causing the electrode plate 2 19 to come into contact with the electrode plate 18. The controller 8 then operates the warning light 9 to alert the user, thereby improving the intelligence and automation of the device.

[0030] In a preferred embodiment, there are two straight rods 15, and both straight rods 15 are symmetrically distributed along the inner wall of the mounting groove 14.

[0031] In the above structure, the two straight rods 15 are used to limit the lifting ring 20 during operation, thereby preventing the lifting ring 20 from tilting or even shifting position during lifting, thus improving the stability of the lifting ring 20 during lifting.

[0032] In a preferred embodiment, electrode plate 18 and electrode plate 19 are both electrically connected to controller 8, and controller 8 is also electrically connected to warning light 9.

[0033] In the above structure, by setting electrode plate 18 and electrode plate 19 and warning light 9, the negative pressure generated by air pump 13 during operation can make filter element 17 gradually descend due to the characteristic of filter element 17 being blocked, so that electrode plate 18 can fit with electrode plate 19 to complete the automatic warning operation, thereby ensuring the normal operation of the device.

[0034] In a preferred embodiment, the output port of the air pump 13 is connected to the interior of the membrane frame 1, and the filter element 17 is connected to the lifting ring 20 by screws.

[0035] In the above structure, the filter element 17 and the lifting ring 20 are installed by screws, which makes it easy for the user to disassemble the filter element 17 after the warning light 9 is lit, and also makes it easy for the user to install the filter element 17. This facilitates the user's maintenance of the device and improves the user's work efficiency.

[0036] Working Principle: After assembling the device, the user can discharge wastewater into the membrane frame 2 through the wastewater tank, allowing the wastewater to come into contact with the biofilm 3 and complete the wastewater treatment. Subsequently, the air pump 13 operates to draw in outside air, which is then passed through the filter element 17 for dust removal, ensuring that clean air comes into contact with the biofilm 3 and preventing dust from interfering with the scrubbing operation. During the wastewater treatment process, clean air can also be discharged into the wastewater, working in conjunction with the motor 5 to agitate the wastewater and air, thereby improving the device's scrubbing effect on the biofilm 3 and the wastewater treatment effect. In subsequent operations, if the filter element 17 becomes clogged, the operation of the air pump 13 will cause the filter element 17 and the lifting ring 20 to move downwards, causing the electrode plate 18 and the electrode plate 29 to come into contact. This will cause the controller 8 to activate the warning light 9 to alert the user, ensuring that the user can clean and replace the filter element 17 in time, thus improving the automation and intelligence of the device.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A membrane scrubbing device for membrane bioreactors with anti-entanglement properties, characterized in that, Includes a membrane frame (1), the inner wall of which is provided with a membrane holder (2), the outer wall of which is provided with a slot (10), the outer wall of which is provided with a biofilm (3), the top of which is fixedly equipped with an aeration box (4) and a motor (5), the top of which is fixedly equipped with a controller (8) and a warning light (9), the top of which is fixedly equipped with an air pump (13), the inlet of which is connected to an air inlet pipe (7), the inner wall of which is provided with an installation groove (14), the installation groove ( A straight rod (15) is fixedly mounted on the inner wall of the 14), and a spring (16) is sleeved on the outer wall of the straight rod (15). The top of the spring (16) abuts against a lifting ring (20). A filter element (17) is provided on the top of the lifting ring (20). An electrode plate two (19) is fixedly mounted on the bottom of the lifting ring (20). An electrode plate one (18) is fixedly mounted on the bottom of the inner wall of the mounting groove (14). A rotating rod (11) is fixedly mounted on the output shaft of the motor (5). A stirring rod (12) is fixedly mounted on the outer wall of the rotating rod (11). A water pipe (6) passes through the top of the membrane frame (1).

2. The membrane scrubbing device for an anti-entanglement type in a membrane bioreactor according to claim 1, characterized in that, The number of motors (5) is several, and the several motors (5) are evenly distributed along the top of the membrane frame (1).

3. The membrane scrubbing device for an anti-entanglement type in a membrane bioreactor according to claim 1, characterized in that, The outer wall of the lifting ring (20) is slidably connected to the inner wall of the mounting groove (14), and the lifting ring (20) is made of galvanized iron metal.

4. The membrane scrubbing device for an anti-entanglement type in a membrane bioreactor according to claim 1, characterized in that, The top of the lifting ring (20) is provided with a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the straight rod (15).

5. The membrane scrubbing device for an anti-entanglement type in a membrane bioreactor according to claim 1, characterized in that, The number of straight rods (15) is two, and both straight rods (15) are symmetrically distributed along the inner wall of the mounting groove (14).

6. The membrane scrubbing device for an anti-entanglement type in a membrane bioreactor according to claim 1, characterized in that, Both electrode plate one (18) and electrode plate two (19) are electrically connected to the controller (8), and the controller (8) is also electrically connected to the warning light (9).

7. The membrane scrubbing device for an anti-entanglement type in a membrane bioreactor according to claim 1, characterized in that, The output port of the air pump (13) is connected to the interior of the membrane frame (1), and the filter element (17) is connected to the lifting ring (20) by screws.