CN216039165U - Sewage treatment plant based on biomembrane technique - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device based on a biomembrane technology. According to the utility model, the screen cylinder and the filter screen plate are arranged to carry out primary coarse filtration on sewage, so that large-volume impurities in the sewage are filtered on the surface of the filter screen plate, the turbine blade is also arranged in the screen cylinder, and the turbine blade drives the rotating rod and the cleaning brush to rotate under the flowing of the sewage to clean the surface of the filter screen plate, so that the filter screen plate is prevented from being blocked, the blockage of a pipeline and a biological membrane in a treatment tank is avoided, and the influence of shutdown maintenance on the sewage treatment efficiency is avoided.

Description

Sewage treatment plant based on biomembrane technique

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device based on a biomembrane technology.

Background

The novel membrane biological reaction device is a novel water treatment technology combining a membrane separation unit and a biological treatment unit, and a membrane component replaces a secondary sedimentation tank to keep high activated sludge concentration in a biological reactor to reduce the occupied area of a sewage treatment facility and reduce sludge amount by keeping low sludge load.

But the sewage treatment plant based on biomembrane technique among the prior art lacks the coarse filtration mechanism to sewage, contains more bulky impurity in the sewage, and bulky impurity directly gets into the jam that can cause pipeline and biomembrane in the treatment tank, need shut down the restoration to processing apparatus after the jam, influences the treatment effeciency of sewage.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the shortcomings of the prior art, the present invention provides a sewage treatment device based on biofilm technology to solve the above problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: a sewage treatment device based on a biological membrane technology comprises a treatment tank, wherein the top of the treatment tank and the bottom of one side of the treatment tank are respectively provided with a water inlet and a water outlet, the water outlet is communicated with a decompression pump through a pipeline, a filler pipe, an aeration pipe, an MBR upper filtering membrane, an MBR rotating membrane and an MBR lower filtering membrane are sequentially arranged in the treatment tank, a rotating shaft is arranged on the MBR rotating membrane, a net screen cylinder is fixedly connected to the periphery of the water inlet on the inner top wall of the treatment tank, a filtering screen plate is fixedly arranged in the net screen cylinder, a rotating rod is rotatably connected to the inner bottom wall of the net screen cylinder, turbine blades are sleeved to the periphery of the rotating rod and below the filtering screen plate, a cleaning brush with the bottom attached to the top of the filtering screen plate is sleeved to the top end of the rotating rod after penetrating through the filtering screen plate, placing plates are fixedly connected to the bottoms on two sides of the net screen cylinder, and the top of the placing plate is clamped with a collecting box the top of which is open, through grooves are formed in the two sides of the screen drum and the top of the filter screen plate, and the middle of the side wall of the collecting box is inlaid with a screen plate.

Optionally, still fixed mounting has the water pumper on one side of processing pond, just the play water end intercommunication of water pumper has the honeycomb duct, the intercommunication has a plurality of nozzles on the honeycomb duct, just the nozzle all stretches into to handling the pond in, the nozzle is located filtration membrane, MBR rotating membrane and MBR down between the filtration membrane on filler pipe and aeration pipe and MBR respectively.

Optionally, the treatment tank is kept away from one side of water pumper and is located filtration membrane, MBR rotating membrane and MBR down and all seted up the blowdown groove on filler pipe and aeration pipe and MBR between the filtration membrane, MBR rotating membrane and MBR down, the blowdown groove all communicates there is the blow off pipe, just fixed mounting has electronic valve on the blow off pipe.

(III) advantageous effects

Compared with the prior art, the utility model provides a sewage treatment device based on a biological membrane technology, which has the following beneficial effects:

1. the utility model carries out preliminary coarse filtration on sewage by arranging the screen cylinder and the filter screen plate, so that large-volume impurities in the sewage are filtered on the surface of the filter screen plate, and the turbine blade is also arranged in the screen cylinder, and the turbine blade drives the rotating rod and the cleaning brush to rotate under the flowing of the sewage to clean the surface of the filter screen plate, so that the filter screen plate is prevented from being blocked, the blockage of a pipeline and a biological membrane in a treatment tank is avoided, and the influence of shutdown maintenance on the sewage treatment efficiency is avoided;

2. according to the utility model, the water pump and the nozzle are arranged to clean the filler pipe, the aeration pipe, the MBR upper filtering membrane, the MBR rotating membrane and the MBR lower filtering membrane when the device is stopped, so that impurities in sewage are prevented from being accumulated in the treatment tank, and the service life of the device is prolonged.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention.

In the figure: 1. a treatment tank; 2. a water inlet; 3. a water outlet; 4. a pressure reducing pump; 5. a filler tube; 6. an aeration pipe; 7. filtering a membrane on the MBR; 8. MBR rotating membrane; 9. an MBR lower filtering membrane; 10. a blow-off pipe; 11. an electronic valve; 12. a mesh screen cylinder; 13. a filter screen plate; 14. rotating the rod; 15. a turbine blade; 16. a cleaning brush; 17. placing the plate; 18. a collection box; 19. a through groove; 20. a mesh sieve plate; 21. a water pump; 22. a nozzle; 23. a sewage draining groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a sewage treatment device based on a biological membrane technology comprises a treatment tank 1, wherein the top and the bottom of one side of the treatment tank 1 are respectively provided with a water inlet 2 and a water outlet 3, the water outlet 3 is communicated with a decompression pump 4 through a pipeline, a filling pipe 5, an aeration pipe 6, an MBR upper filtering membrane 7, an MBR rotating membrane 8 and an MBR lower filtering membrane 9 are sequentially arranged in the treatment tank 1, a rotating shaft is arranged on the MBR rotating membrane 8, a mesh screen cylinder 12 is fixedly connected on the inner top wall of the treatment tank 1 and positioned at the periphery of the water inlet 2, a filtering screen plate 13 is fixedly arranged in the mesh screen cylinder 12, a rotating rod 14 is rotatably connected on the inner bottom wall of the mesh screen cylinder 12, turbine blades 15 are sleeved on the periphery of the rotating rod 14 and positioned below the filtering screen plate 13, a cleaning brush 16 with the bottom matched with the top of the filtering screen plate 13 is sleeved after the top end of the rotating rod 14 penetrates through the filtering screen plate 13, the bottoms of the two sides of the mesh screen cylinder 12 are both fixedly connected with placing plates 17, a collecting box 18 with an opening at the top is clamped at the top of the placing plate 17, through grooves 19 are formed in the two sides of the screen drum 12 and the top of the filter screen plate 13, and a screen plate 20 is embedded in the middle of the side wall of the collecting box 18;

still fixed mounting has water pumper 21 on one side of treatment tank 1, the end intercommunication that draws water of water pumper 21 has outside clean water basin, and the play water end intercommunication of water pumper 21 has the honeycomb duct, the intercommunication has a plurality of nozzles 22 on the honeycomb duct, and nozzle 22 all stretches into to treatment tank 1 in, nozzle 22 is located filtration membrane 7 on gland packing 5 and aeration pipe 6 and the MBR respectively, MBR rotating membrane 8, and MBR down between the filtration membrane 9, one side that treatment tank 1 kept away from water pumper 21 just is located filtration membrane 7 on gland packing 5 and aeration pipe 6 and the MBR, MBR rotating membrane 8, and MBR down have all seted up the blowdown groove between the filtration membrane 9, the blowdown groove all communicates has blow off pipe 10, and fixed mounting has electronic valve 11 on blow off pipe 10.

The working principle is as follows: when the device is used, sewage to be treated is added into a treatment tank 1 through a water inlet 2, large-volume impurities in the sewage are filtered on the surface of a filter screen plate 13, a turbine blade 15 drives a rotating rod 14 and a cleaning brush 16 to rotate under the flowing of the sewage to clean the surface of the filter screen plate 13, the impurities are cleaned into a collection box 18 through a through groove 19 to avoid the blockage of the filter screen plate 13, then the sewage is treated from top to bottom under the action of water pumping of a decompression pump 4 and gravity, the sewage is treated through a filler pipe 5 containing fillers and an aeration pipe 6 below each filler pipe 5 by aeration, after three times of adsorption and aeration, fine particles are suspended and adsorbed downwards, large-particle impurities are blocked through a filter membrane 7 on an MBR, and after secondary filtration, an MBR rotating membrane 8 is driven by a rotating shaft to rotate and adsorb the fine particles, until reaching the final MBR lower filtering membrane 9, after the final MBR lower filtering membrane 9 filters the final MBR lower filtering membrane, the final MBR lower filtering membrane is discharged from the water outlet 3 through the water outlet 3 to the decompression pump 4, and the sewage treatment is completed;

when the device is stopped, the water pump 21 is started to clean the inside of the treatment tank 1, so that impurities accumulated in the treatment tank 1 are discharged through the sewage discharge pipe 10.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims (3)

1. The utility model provides a sewage treatment plant based on biomembrane technique, includes treatment tank (1), the top of treatment tank (1) and the bottom of one side are provided with water inlet (2) and delivery port (3) respectively, just delivery port (3) have decompression pump (4) through the pipeline intercommunication, filter membrane (7), MBR rotating membrane (8) and MBR lower filter membrane (9) on having set gradually filler tube (5), aeration pipe (6), MBR in treatment tank (1), be provided with the rotation axis on MBR rotating membrane (8), its characterized in that: the outer periphery fixedly connected with net screen cylinder (12) of water inlet (2) on the interior roof of processing pond (1), just the fixed mounting has filter screen board (13) in net screen cylinder (12), rotate on the interior diapire of net screen cylinder (12) and be connected with dwang (14), turbine blade (15) have been cup jointed in the periphery of dwang (14) and the below that is located filter screen board (13), the top of dwang (14) is run through and is filtered behind screen board (13) and cup jointed bottom and filter screen board (13) top laminating's cleaning brush (16), the equal fixedly connected with in bottom of net screen cylinder (12) both sides places board (17), just the top joint that places board (17) has the top to open-ended collecting box (18), logical groove (19) have all been seted up on the both sides of net screen cylinder (12) and the top that is located screen board (13), and the middle parts of the side walls of the collecting boxes (18) are all embedded with a net sieve plate (20).

2. The sewage treatment device based on the biofilm technology as claimed in claim 1, wherein: still fixed mounting has water pumper (21) on one side of treatment pond (1), just the play water end intercommunication of water pumper (21) has the honeycomb duct, the intercommunication has a plurality of nozzles (22) on the honeycomb duct, just nozzle (22) all stretch into to treatment pond (1) in, nozzle (22) are located respectively on filler pipe (5) and aeration pipe (6) and MBR filtration membrane (7), MBR rotating membrane (8) and MBR down between filtration membrane (9).

3. The sewage treatment device based on the biological membrane technology as claimed in claim 2, wherein: handle pond (1) and keep away from one side of water pumper (21) and be located filtration membrane (7), MBR rotating film (8) and MBR down and all seted up the blowdown groove between filtration membrane (9) on filler pipe (5) and aeration pipe (6) and the MBR, the blowdown groove all communicates has blow off pipe (10), just fixed mounting has electronic valve (11) on blow off pipe (10).

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