CN117303566A

CN117303566A - Membrane bioreactor

Info

Publication number: CN117303566A
Application number: CN202311234339.3A
Authority: CN
Inventors: 张卿监; 虞金辉
Original assignee: Nanyi Environmental Engineering Technology Shanghai Co ltd
Current assignee: Nanyi Environmental Engineering Technology Shanghai Co ltd
Priority date: 2023-09-24
Filing date: 2023-09-24
Publication date: 2023-12-29

Abstract

The invention provides a membrane bioreactor, and relates to the technical field of sewage treatment. This membrane bioreactor, including the reaction tank, reaction tank upper end middle part is provided with the fixed plate, fixed plate lower extreme both sides are all fixed and are provided with a plurality of connecting plates, the fixed plate lower extreme can be dismantled and be provided with the otter board, and is a plurality of the otter board is inside all to be fixedly provided with the biomembrane, the processing zone has been seted up to the reaction tank inside, and is a plurality of the otter board is all located the processing zone inside, reaction tank front end both sides are all fixed and are provided with first driving case, reaction tank rear end middle part is fixed and is provided with the second driving case, two first driving case and the inside lower extreme of second driving case are all fixed and are provided with the motor. The invention can clean impurities such as mud and dirt remained on the biological film, effectively reduces the influence of excessive deposition of the biological film on the water passing efficiency, and the aeration pipe can be lifted to aerate different positions in the reaction tank, thereby further improving the sewage treatment efficiency.

Description

Membrane bioreactor

Technical Field

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

Background

The membrane bioreactor is a novel wastewater treatment system organically combining a membrane separation technology and a biological treatment technology, a membrane component is used for replacing a traditional biological treatment technology terminal secondary sedimentation tank, high active sludge concentration is kept in the bioreactor, and biological treatment organic load is improved, so that the occupied area of sewage treatment facilities is reduced, and the residual sludge amount is reduced by keeping low sludge load. The membrane bioreactor can realize the deep purification of sewage and can simultaneously carry out deep dephosphorization and denitrification on the sewage.

However, the existing membrane bioreactor cannot clean the residual sludge impurities of the membrane body at any time after the biological membrane is used for a long time, only the whole membrane assembly can be disassembled, the difficulty of workers is increased, the position of the aeration pipe cannot be adjusted, aeration cannot be carried out in the reaction tanks at different positions, and the treatment efficiency of sewage is reduced. Accordingly, a membrane bioreactor is provided by those skilled in the art to solve the problems set forth in the background art.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides the membrane bioreactor which can clean impurities such as mud and dirt remained on the biological membrane, effectively reduce the influence of excessive deposition of the biological membrane on the water passing efficiency, and the aeration pipe can be lifted to aerate different positions in the reaction tank so as to further improve the sewage treatment efficiency.

(II) technical scheme

In order to achieve the above purpose, the invention is realized by the following technical scheme: the membrane bioreactor comprises a reaction tank, wherein a fixed plate is arranged in the middle of the upper end of the reaction tank, a plurality of connecting plates are fixedly arranged on two sides of the lower end of the fixed plate, a screen plate is detachably arranged at the lower end of the fixed plate, biological membranes are fixedly arranged in the screen plate, a treatment area is arranged in the reaction tank, and a plurality of screen plates are arranged in the treatment area;

the two sides of the front end of the reaction tank are fixedly provided with a first driving box, the middle part of the rear end of the reaction tank is fixedly provided with a second driving box, the lower ends of the inner parts of the two first driving boxes and the second driving boxes are fixedly provided with motors, the output ends of the three motors are fixedly connected with screw rods, the three screw rods are sleeved with movable blocks, one sides of the three movable blocks are fixedly provided with sliding blocks, the end, far away from the movable block, of the three sliding blocks is fixedly provided with a supporting plate, the upper ends of the two supporting plates at the front end are fixedly provided with a first connecting rod, the end, far away from the supporting plate, of the two connecting rods stretches into the treatment area and is fixedly connected with a connecting plate, the rear end of the connecting plate is fixedly connected with a plurality of fixing plates, and the inner side walls of the fixing plates are fixedly provided with scraping plates;

the back end the backup pad upper end fixedly connected with second connecting rod, the one end that the backup pad was kept away from to the second connecting rod stretches into the inside fixedly connected with pipe of processing district, pipe front end fixedly connected with a plurality of aeration pipes, a plurality of all seted up a plurality of aeration holes on the aeration pipe, reaction tank back end one side fixedly provided with air pump, the output fixedly connected with air duct of air pump, the one end fixedly connected with that the air duct kept away from the air pump is on the pipe.

Preferably, clamping grooves are formed in the middle of two side walls of the upper end face of the reaction tank, supporting blocks are fixedly arranged on two sides of the lower end of the fixing plate, clamping blocks are fixedly arranged on the lower ends of the two supporting blocks, the two clamping blocks are respectively clamped in the corresponding clamping grooves, and hooks are fixedly arranged in the middle of the upper end of the fixing plate;

through above-mentioned technical scheme, through fixture block joint inside the draw-in groove to support fixedly to the fixed plate.

Preferably, the plurality of connecting plates are provided with fixing bolts, the two corresponding connecting plates are respectively connected to the corresponding mesh plates, and the plurality of fixing bolts penetrate through the connecting plates and are connected to the corresponding mesh plates in a threaded manner;

through above-mentioned technical scheme, make connecting plate and otter board be connected through fixing bolt, the installation dismantlement of otter board of being convenient for.

Preferably, one side of the two first driving boxes corresponding to the two second driving boxes and one side of the two second driving boxes are respectively provided with a limiting chute, and the three sliding blocks slide in the corresponding limiting chutes respectively;

through above-mentioned technical scheme, through the spacing slip of slider in spacing spout to make the movable block spacing.

Preferably, the upper ends of the interiors of the two first driving boxes and the two second driving boxes are fixedly provided with rotating seats, and the upper ends of the three screw rods respectively extend into the corresponding rotating seats;

through above-mentioned technical scheme, support the lead screw upper end through rotating the seat.

Preferably, the fixing plates are U-shaped and correspond to the net plates one by one;

through above-mentioned technical scheme, the fixed plate is U type form, with the otter board laminating to cut two sides of otter board and rub.

Preferably, the conduit is communicated with the aeration pipes, and a plurality of aeration pipes are respectively arranged between the two net plates;

through the technical scheme, the aeration pipes are used for conducting air through the guide pipes, so that aeration is carried out between every two net plates.

Preferably, a water inlet pipe is fixedly arranged in one side of the reaction tank, and a water outlet pipe is fixedly arranged at the lower end of one side, away from the water inlet pipe, of the reaction Chi Yuan;

through the technical scheme, sewage is added into the reaction tank through the water inlet pipe, and the treated sewage is discharged through the water outlet pipe.

Working principle: when the membrane bioreactor is used, sewage is added into the reaction tank through the water inlet pipe, the sewage is treated through the biological membrane, after the biological membrane is used for a long time, the screw rod is driven to rotate through the motor, the movable block is enabled to move up and down on the screw rod under the limiting action of the sliding block and the limiting sliding groove, thereby driving the supporting plate to lift, the lifting of the supporting plate drives the connecting rod to move, thereby enabling the fixing plate and the aeration pipe to move at the screen plate, scraping and rubbing the two sides of the screen plate through the scraping plate on the inner side of the fixing plate, facilitating cleaning impurities such as mud and the like remained on the screen plate, effectively reducing the influence on the water passing efficiency due to excessive deposition of the biological membrane, when the biological membrane is used, the aeration pipe adopts the same moving mode, different areas in the reaction tank can be aerated, further improving the efficiency of sewage treatment, after the biological membrane is used for a period of time, the screen plate on the fixing plate is lifted through the lifting mechanism, the screen frame can be detached through the bolts, and each screen frame is an independent individual, and the detachment and replacement of the screen frame is facilitated.

(III) beneficial effects

The invention provides a membrane bioreactor. The beneficial effects are as follows:

according to the invention, the motor drives the screw rod to rotate, the movable block moves up and down on the screw rod under the limiting action of the sliding block and the limiting sliding groove, so that the supporting plate is driven to lift, and the lifting of the supporting plate drives the connecting rod to move, so that the fixed plate and the aeration pipe move at the position of the screen plate, and the two sides of the screen plate are scratched by the scraping plate at the inner side of the fixed plate, so that impurities such as mud and dirt remained on the screen plate are conveniently cleaned, the water passing efficiency caused by excessive biological film deposition is effectively reduced, and different areas in the reaction tank can be aerated by the movement of the aeration pipe, so that the sewage treatment efficiency is further improved; the screen plate on the fixed plate is lifted by the lifting mechanism, the screen frames can be detached by the bolts, and each screen frame is an independent individual, so that the screen frames can be detached and replaced conveniently.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic illustration of a biofilm assembly according to the present invention;

FIG. 3 is a schematic view of the internal structure of the drive box according to the present invention;

FIG. 4 is a schematic view of a screed according to the present invention;

FIG. 5 is a schematic view of the structure of an aeration tube according to the present invention;

fig. 6 is an enlarged view at a in fig. 2.

Wherein, 1, a reaction tank; 2. a clamping groove; 3. a fixing plate; 4. a support block; 5. a clamping block; 6. a connecting plate; 7. a fixing bolt; 8. a screen plate; 9. a biological membrane; 10. a treatment zone; 11. a first drive box; 12. a second drive box; 13. limiting sliding grooves; 14. a motor; 15. a screw rod; 16. a rotating seat; 17. a movable block; 18. a slide block; 19. a support plate; 20. a first connecting rod; 21. a connecting plate; 22. a fixing plate; 23. a scraper; 24. a second connecting rod; 25. a conduit; 26. an aeration pipe; 27. aeration holes; 28. an air pump; 29. an air duct; 30. a water inlet pipe; 31. a water outlet pipe; 32. a hook.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-6, an embodiment of the present invention provides a membrane bioreactor, which comprises a reaction tank 1, wherein a fixing plate 3 is arranged in the middle of the upper end of the reaction tank 1, a plurality of connecting plates 6 are fixedly arranged on both sides of the lower end of the fixing plate 3, a mesh plate 8 is detachably arranged at the lower end of the fixing plate 3, biological membranes 9 are fixedly arranged in the plurality of mesh plates 8, a treatment area 10 is arranged in the reaction tank 1, and the plurality of mesh plates 8 are all arranged in the treatment area 10;

the two sides of the front end of the reaction tank 1 are fixedly provided with first driving boxes 11, the middle part of the rear end of the reaction tank 1 is fixedly provided with second driving boxes 12, the lower ends of the inside of the two first driving boxes 11 and the second driving boxes 12 are fixedly provided with motors 14, the output ends of the three motors 14 are fixedly connected with screw rods 15, the three screw rods 15 are sleeved with movable blocks 17 in a threaded manner, one sides of the three movable blocks 17 are fixedly provided with sliding blocks 18, one ends of the three sliding blocks 18 far away from the movable blocks 17 are fixedly provided with supporting plates 19, the upper ends of the two supporting plates 19 at the front end are fixedly provided with first connecting rods 20, one ends of the two connecting rods 20 far away from the supporting plates 19 extend into the treatment area 10 and are fixedly connected with connecting plates 21, the rear ends of the connecting plates 21 are fixedly connected with a plurality of fixed plates 22, and the inner side walls of the fixed plates 22 are fixedly provided with scraping plates 23;

the backup pad 19 upper end fixedly connected with second connecting rod 24 of rear end, the one end that the backup pad 19 was kept away from to second connecting rod 24 stretches into the inside and fixedly connected with pipe 25 of handling district 10, pipe 25 front end fixedly connected with a plurality of aeration pipes 26, a plurality of aeration holes 27 have all been seted up on a plurality of aeration pipes 26, reaction tank 1 rear end one side fixedly provided with air pump 28, the output fixedly connected with air duct 29 of air pump 28, the one end fixedly connected with that air duct 29 kept away from air pump 28 is on pipe 25.

Clamping grooves 2 are formed in the middle of two side walls of the upper end face of the reaction tank 1, supporting blocks 4 are fixedly arranged on two sides of the lower end of a fixing plate 3, clamping blocks 5 are fixedly arranged on the lower ends of the two supporting blocks 4, the two clamping blocks 5 are respectively clamped in the corresponding clamping grooves 2, hooks 32 are fixedly arranged in the middle of the upper end of the fixing plate 3, and the fixing plate 3 is fixedly clamped in the clamping grooves 2 through the clamping blocks 5, so that the fixing plate 3 is supported and fixed;

the fixing bolts 7 are arranged on the connecting plates 6, the two corresponding connecting plates 6 are respectively connected to the corresponding mesh plates 8, the connecting plates 6 are penetrated by the fixing bolts 7 and are connected to the corresponding mesh plates 8 in a threaded manner, and the connecting plates 6 are connected with the mesh plates 8 through the fixing bolts 7, so that the mesh plates 8 are convenient to mount and dismount;

a limiting chute 13 is formed in one side of the two first driving boxes 11 corresponding to one side of the two second driving boxes 12, three sliding blocks 18 slide in the corresponding limiting chute 13 respectively, and the sliding blocks 18 slide in the limiting chute 13 in a limiting manner, so that the movable blocks 17 are limited;

the upper ends of the interiors of the two first driving boxes 11 and the second driving boxes 12 are fixedly provided with rotating seats 16, the upper ends of the three screw rods 15 respectively extend into the corresponding rotating seats 16, and the upper ends of the screw rods 15 are supported by the rotating seats 16;

the fixing plates 22 are U-shaped and correspond to the screen plates 8 one by one, and the fixing plates 22 are U-shaped and are attached to the screen plates 8, so that the two sides of the screen plates 8 are scratched;

the guide pipe 25 is communicated with the aeration pipes 26, a plurality of aeration pipes 26 are respectively arranged between the two net plates 8, and the aeration pipes 26 are guided by the guide pipe 25 so as to perform aeration between each net plate 8;

a water inlet pipe 30 is fixedly arranged in one side of the reaction tank 1, a water outlet pipe 31 is fixedly arranged near the lower end of one side of the reaction tank 1 away from the water inlet pipe 30, sewage is added into the reaction tank 1 through the water inlet pipe 30, and treated sewage is discharged through the water outlet pipe 31.

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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A membrane bioreactor comprising a reaction tank (1), characterized in that: the device is characterized in that a fixing plate (3) is arranged in the middle of the upper end of the reaction tank (1), a plurality of connecting plates (6) are fixedly arranged on two sides of the lower end of the fixing plate (3), a net plate (8) is detachably arranged at the lower end of the fixing plate (3), biological membranes (9) are fixedly arranged in the net plate (8), a treatment area (10) is formed in the reaction tank (1), and a plurality of net plates (8) are arranged in the treatment area (10);

the device comprises a reaction tank (1), a first driving box (11) and a second driving box (12) are fixedly arranged on two sides of the front end of the reaction tank (1), a motor (14) is fixedly arranged on two lower ends inside the first driving box (11) and the second driving box (12), a screw rod (15) is fixedly connected to the output end of the motor (14), a movable block (17) is sleeved on the screw rod (15), a sliding block (18) is fixedly arranged on one side of the movable block (17), a supporting plate (19) is fixedly arranged on one end, far away from the movable block (17), of the sliding block (18), a first connecting rod (20) is fixedly arranged on the upper end of the supporting plate (19), one end, far away from the supporting plate (19), of the connecting rod (20) stretches into the inside of a treatment area (10) and is fixedly connected with a connecting plate (21), a plurality of fixing plates (22) are fixedly connected to the rear end of the connecting plate (21), and a plurality of inner side walls (22) are fixedly provided with scraping plates (23).

The rear end backup pad (19) upper end fixedly connected with second connecting rod (24), the one end that backup pad (19) was kept away from to second connecting rod (24) stretches into inside and fixedly connected with pipe (25) of processing zone (10), a plurality of aeration pipes (26) of pipe (25) front end fixedly connected with, a plurality of all offer a plurality of aeration holes (27) on aeration pipe (26), reaction tank (1) rear end one side is fixed to be provided with air pump (28), the output fixedly connected with air duct (29) of air pump (28), the one end fixedly connected with on pipe (25) that air duct (29) kept away from air pump (28).

2. A membrane bioreactor according to claim 1, wherein: clamping grooves (2) are formed in the middle of two side walls of the upper end face of the reaction tank (1), supporting blocks (4) are fixedly arranged on two sides of the lower end of the fixing plate (3), clamping blocks (5) are fixedly arranged on two sides of the lower end of each supporting block (4), the clamping blocks (5) are respectively clamped inside the corresponding clamping grooves (2), and hooks (32) are fixedly arranged in the middle of the upper end of the fixing plate (3).

3. A membrane bioreactor according to claim 1, wherein: a plurality of connecting plates (6) are provided with fixing bolts (7), two corresponding connecting plates (6) are respectively connected to corresponding mesh plates (8), and a plurality of fixing bolts (7) penetrate through the connecting plates (6) and are connected to the corresponding mesh plates (8) in a threaded mode.

4. A membrane bioreactor according to claim 1, wherein: limiting sliding grooves (13) are formed in one side, corresponding to the first driving boxes (11), of each of the two first driving boxes (12) and one side, of each of the two second driving boxes (12), and three sliding blocks (18) slide in the corresponding limiting sliding grooves (13) respectively.

5. A membrane bioreactor according to claim 1, wherein: the upper ends of the interiors of the two first driving boxes (11) and the second driving boxes (12) are fixedly provided with rotating seats (16), and the upper ends of the three screw rods (15) respectively extend into the interiors of the corresponding rotating seats (16).

6. A membrane bioreactor according to claim 1, wherein: the fixing plates (22) are U-shaped and correspond to the net plates (8) one by one.

7. A membrane bioreactor according to claim 1, wherein: the guide pipe (25) is communicated with the aeration pipes (26), and a plurality of the aeration pipes (26) are respectively arranged between the two net plates (8).

8. A membrane bioreactor according to claim 1, wherein: the water inlet pipe (30) is fixedly arranged in one side of the reaction tank (1), and the water outlet pipe (31) is fixedly arranged at the lower end of one side, far away from the water inlet pipe (30), of the reaction tank (1).