CN219670268U

CN219670268U - Dynamic membrane bioreactor

Info

Publication number: CN219670268U
Application number: CN202320567012.7U
Authority: CN
Inventors: 林华; 吕文豪; 林春鑫; 栾胜杰; 姜晓磊
Original assignee: Shandong Haolin Environmental Protection Technology Co ltd
Current assignee: Shandong Haolin Environmental Protection Technology Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-09-12
Anticipated expiration: 2033-03-22

Abstract

The utility model relates to the technical field of sewage treatment and discloses a dynamic membrane bioreactor which comprises a frame, a communicating main pipe and filtering membranes, wherein the filtering membranes are uniformly arranged on the inner side wall of the frame, the membranes consist of a membrane frame, a membrane body, dynamic membrane carriers and a water passing cavity, the dynamic membrane carriers are fixedly connected on the inner side wall of the membrane frame, the water passing cavity is formed between the dynamic membrane carriers, and the membrane body is arranged on the outer side wall of the dynamic membrane carrier; according to the utility model, the redundant film body is scraped by the scraping plate, so that the cleaning of the biological film is realized, the situation that the water passing efficiency is influenced by excessive deposition of the biological film is effectively reduced, the water production efficiency of the device in the long-term operation process is improved, and the operation of the device is ensured.

Description

Dynamic membrane bioreactor

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a dynamic membrane bioreactor.

Background

The membrane bioreactor is a novel wastewater treatment system organically combining membrane separation technology and biological treatment technology. The membrane component is used for replacing a traditional biological treatment technology end secondary sedimentation tank, high activated sludge concentration is maintained in a bioreactor, biological treatment organic load is improved, thus the occupied area of sewage treatment facilities is reduced, the residual sludge amount is reduced by maintaining low sludge load, activated sludge and macromolecular organic matters in water are mainly retained by membrane separation equipment, the dynamic membrane technology adopts cheap macroporous materials as sewage filtering media, and biological membranes are formed by initially retained pollutants and later-adhered microorganisms, so that the aim of improving the water quality of effluent is achieved.

The utility model patent number CN217051763U discloses a self-generated dynamic membrane bioreactor for treating urban sewage, and relates to the technical field of sewage treatment. The utility model adopts a mode of arranging the buffer device at the bottom of the aeration device, and can absorb the reaction force of the water tank to the whole device when the membrane bioreactor is deployed by matching the buffer springs and the rotating rods, so as to achieve the aim of protecting the internal structure, and the expansion brackets at the two sides are pushed by the impact force to enlarge the supporting area, and the specific enlarged supporting area can be controlled by selecting the triggering rods with different lengths.

The existing dynamic membrane bioreactor has the following defects: 1. along with the extension of the running time of the system, colloid particles are deposited on the filtering membrane, and finally, an excessively thick biological membrane (mud cake layer) is formed on the membrane surface, so that the transmembrane pressure difference is gradually increased, the influence on the water production of the system is caused, the excessively thick biological membrane is inconvenient to clean, or the cleaning operation is complex, and the use is inconvenient.

Disclosure of Invention

The utility model aims to provide a dynamic membrane bioreactor which solves the problem that the prior art is inconvenient to remove an excessively thick biological membrane.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dynamic membrane bioreactor, includes frame, intercommunication house steward and filtration membrane, the frame inside wall is provided with evenly arranged's filtration membrane, the membrane comprises membrane frame, membranous body, dynamic membrane carrier and water cavity, and membrane frame inside wall fixedly connected with dynamic membrane carrier forms the water cavity between the dynamic membrane carrier, and dynamic membrane carrier lateral wall is provided with the membranous body.

As the preferred scheme, the fixed intercommunication of intercommunication house steward lower surface has the communication branch pipe of evenly arranging, and communication branch pipe one end is linked together with the water chamber, and the fixed surface is connected with the force pump on the intercommunication house steward, and the pump inlet of force pump is linked together with the intercommunication house steward, and the pump outlet of force pump is fixed to be linked together and is had three way connection, and three way connection exit end is fixed to be linked together respectively and is had recoil water pipe and outlet pipe.

As the preferred scheme, two sets of mounting of frame lateral wall fixedly connected with, fixedly connected with gag lever post and rotate between another group and be connected with the threaded rod between a set of mounting, threaded rod surface threaded connection has the thread bush, and thread bush fixedly connected with fly leaf and fly leaf one end link to each other with the gag lever post slip, and fly leaf lateral wall fixedly connected with evenly arranges's scraper blade, and fixedly connected with servo motor and servo motor power take off end link to each other with threaded rod one end on the mounting.

Preferably, the scraping plate is abutted against the side wall of the film frame.

Preferably, the upper surface of the frame is provided with lifting lugs.

As an optimal scheme, the pressure pump and the servo motor are electrically connected with an external power supply through an external controller.

The utility model has the technical effects and advantages that:

1. when the servo motor operates, the power output end of the servo motor rotates to drive the threaded rod to rotate, the threaded rod rotates to drive the threaded sleeve to move, the threaded sleeve can only move along the vertical direction under the action of the movable plate and the limiting rod, the movable plate is driven to move by the movement of the threaded sleeve, the movable plate is driven to move by the movement of the movable plate, the scraping plate moves to scratch the membrane body, the scraping plate scrapes the redundant membrane body, the cleaning of the biological membrane is realized, the situation that the water passing efficiency is influenced by excessive biological membrane deposition is effectively reduced, the water producing efficiency of the device in the long-term operation process is improved, and the operation of the device is ensured; the scraping plate is propped against the side wall of the film frame, the distance between the scraping plate and the dynamic film carrier is the thickness of the film body, the condition that the filtering effect of the biological film is reduced in the regeneration process after the film body is removed is avoided, the stability of the filtering effect of the reactor is improved, and the quality of the discharged water is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is an enlarged view of the structure of fig. 1 a in accordance with the present utility model.

FIG. 3 is a schematic view of the structure of the filter membrane of the present utility model.

Fig. 4 is a schematic plan view of a filter membrane according to the present utility model.

In the figure: 1. a frame; 2. a fixing member; 3. a limit rod; 4. a filter membrane; 401. a membrane frame; 402. a membrane body; 403. a dynamic membrane carrier; 404. a water passing cavity; 5. a communicating branch pipe; 6. a communicating main pipe; 7. a pump inlet; 8. a pressure pump; 9. a pump outlet; 10. a three-way joint; 11. a recoil water pipe; 12. a water outlet pipe; 13. a servo motor; 14. a threaded rod; 15. a thread sleeve; 16. a movable plate; 17. a scraper; 18. lifting lugs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a dynamic membrane bioreactor as shown in figures 1-4, which comprises a frame 1, a communication main pipe 6 and filtering membranes 4, wherein the filtering membranes 4 which are uniformly arranged are arranged on the inner side wall of the frame 1, the membranes consist of a membrane frame 401, a membrane body 402, dynamic membrane carriers 403 and a water passing cavity 404, the dynamic membrane carriers 403 are fixedly connected on the inner side wall of the membrane frame 401, the water passing cavity 404 is formed between the dynamic membrane carriers 403, and the membrane body 402 is arranged on the outer side wall of the dynamic membrane carriers 403; negative pressure can be formed through the pressure pump 8, so that sewage passes through the membrane body 402 and enters the water cavity 404, suspended matters, bacterial colloid, particulate impurities and other substances with larger diameters in the water are removed through the membrane body 402, and microorganisms are completely trapped in the biological reaction tank through the efficient trapping effect of the membrane body 402, so that the turbidity of the treated water is greatly reduced.

In the embodiment, the lower surface of a communication main pipe 6 is fixedly communicated with uniformly-arranged communication branch pipes 5, one end of each communication branch pipe 5 is communicated with a water passing cavity 404, the upper surface of the communication main pipe 6 is fixedly connected with a pressure pump 8, a pump inlet 7 of the pressure pump 8 is communicated with the communication main pipe 6, a pump outlet 9 of the pressure pump 8 is fixedly communicated with a three-way joint 10, and the outlet ends of the three-way joint 10 are respectively fixedly communicated with a recoil water pipe 11 and a water outlet pipe 12; the negative pressure can be formed through the operation of the pressure pump 8, so that sewage is led into the water cavity 404 through the membrane body 402, water led into the water cavity 404 is purified, and then is discharged through the water outlet pipe 12, the membrane body 402 is backwashed through the backwashing water pipe 11, the operation stability of the reactor is improved, and the service life of the membrane body 402 is further prolonged.

In the embodiment, two groups of fixing pieces 2 are fixedly connected to the side wall of the frame 1, a limit rod 3 is fixedly connected between one group of fixing pieces 2, a threaded rod 14 is rotatably connected between the other group of fixing pieces, a threaded sleeve 15 is connected to the surface of the threaded rod 14 in a threaded manner, a movable plate 16 is fixedly connected to the surface of the threaded sleeve 15, one end of the movable plate 16 is slidably connected with the limit rod 3, scraping plates 17 which are uniformly distributed are fixedly connected to the side wall of the movable plate 16, a servo motor 13 is fixedly connected to the upper surface of the fixing pieces 2, and the power output end of the servo motor 13 is fixedly connected with one end of the threaded rod 14; when the servo motor 13 operates, the power output end of the servo motor 13 rotates to drive the threaded rod 14 to rotate, the threaded rod 14 rotates to drive the threaded sleeve 15 to move, the threaded sleeve 15 only can move along the vertical direction under the action of the movable plate 16 and the limiting rod 3, the threaded sleeve 15 moves to drive the movable plate 16 to move, the movable plate 16 moves to drive the scraping plate 17 to move, the scraping plate 17 moves to scratch the membrane 402, the scraping plate 17 scrapes the redundant membrane 402, the cleaning of the biological membrane is realized, the situation that the excessive thickness of the biological membrane deposit influences the water passing efficiency is effectively reduced, the water producing efficiency of the device in the long-term operation process is improved, and the operation of the device is ensured.

In the embodiment, the scraping plate 17 is propped against the side wall of the film frame 401, the lifting lug 18 is arranged on the upper surface of the frame 1, and the pressure pump 8 and the servo motor 13 are electrically connected with an external power supply through an external controller; the scraper 17 offsets with the membrane frame 401 lateral wall, and the interval between scraper 17 and the dynamic membrane carrier 403 is the thickness of membrane body 402, avoids leading to the fact the condition that the biomembrane filters the effect decline in regeneration process after clearing away membrane body 402 to improved the stability of reactor filter effect, guaranteed out water quality, accessible lug 18 lifts by crane the whole device, accessible external controller control pressure pump 8 and servo motor 13 operation, easy operation is convenient, facilitate the use.

The working principle of the utility model is as follows: the utility model relates to a dynamic membrane bioreactor, which is characterized in that a pressure pump 8 is used for forming negative pressure, so that sewage is led into a water passing cavity 404 through a membrane body 402, substances with larger diameters such as suspended matters, bacterial colloid, particle sundries and the like in the water are removed through the membrane body 402, microorganisms are completely trapped in a biological reaction tank through the high-efficiency trapping effect of the membrane body 402, the water led into the water passing cavity 404 is purified, the water is discharged through a water outlet pipe 12, and the membrane body 402 can be backwashed through a backwater water pipe 11; when the servo motor 13 operates, the power output end of the servo motor 13 rotates to drive the threaded rod 14 to rotate, the threaded rod 14 rotates to drive the threaded sleeve 15 to move, the threaded sleeve 15 can only move along the vertical direction under the action of the movable plate 16 and the limiting rod 3, the threaded sleeve 15 moves to drive the movable plate 16 to move, the movable plate 16 moves to drive the scraping plate 17 to move, the scraping plate 17 moves to scratch the film 402, the scraping plate 17 scrapes the redundant film 402, and the cleaning of the biological film is realized.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A dynamic membrane bioreactor, comprising a frame (1), a communicating manifold (6) and a filtering membrane (4), characterized in that: the filter membrane is characterized in that filtering membranes (4) which are uniformly arranged are arranged on the inner side wall of the frame (1), the membranes consist of a membrane frame (401), a membrane body (402), dynamic membrane carriers (403) and a water passing cavity (404), the dynamic membrane carriers (403) are fixedly connected to the inner side wall of the membrane frame (401), a water passing cavity (404) is formed between the dynamic membrane carriers (403), and the membrane body (402) is arranged on the outer side wall of the dynamic membrane carriers (403).

2. A dynamic membrane bioreactor according to claim 1, wherein: the utility model discloses a water flushing device, including connecting house steward (6), connecting house steward, pump inlet (7) and connecting house steward, connecting house steward (6) lower surface fixed intercommunication has communication branch pipe (5) of evenly arranging, and communication branch pipe (5) one end is linked together with water chamber (404), and fixedly connected with force pump (8) on connecting house steward (6), force pump (8) pump outlet (9) fixed intercommunication has three way connection (10), and three way connection (10) exit end is fixed intercommunication respectively has recoil water pipe (11) and outlet pipe (12).

3. A dynamic membrane bioreactor according to claim 1, wherein: two sets of mounting (2) of frame (1) lateral wall fixedly connected with, wherein fixedly connected with gag lever post (3) and rotate between another group between a set of mounting (2) and be connected with threaded rod (14), threaded rod (14) surface threaded connection has thread bush (15), thread bush (15) fixedly connected with fly leaf (16) and fly leaf (16) one end and gag lever post (3) slip link to each other, scraper blade (17) of fly leaf (16) lateral wall fixedly connected with even arranging, surface fixedly connected with servo motor (13) and servo motor (13) power take off end and threaded rod (14) one end fixed link to each other.

4. A dynamic membrane bioreactor according to claim 3, wherein: the scraping plate (17) is propped against the side wall of the film frame (401).

5. A dynamic membrane bioreactor according to claim 1, wherein: lifting lugs (18) are arranged on the upper surface of the frame (1).

6. A dynamic membrane bioreactor according to claim 2, wherein: the pressure pump (8) and the servo motor (13) are electrically connected with an external power supply through an external controller.