CN212222556U - Efficient anti-pollution MBR (membrane bioreactor) membrane assembly - Google Patents

Abstract

The utility model discloses a high-efficient antipollution MBR membrane module, it includes many hollow membrane silks and hollow membrane shell, the surface of membrane shell still is provided with the aeration subassembly, because the utility model discloses the root of membrane silk is being surrounded to the base of aeration subassembly, makes the membrane silk keep the root to be in quiescent condition all the time in the use of continuous shake, prevents the root disturbance to effectively solve the condition that the root membrane silk peeled off glue, reduce the work of mending-leakage maintenance subassembly.

Description

Efficient anti-pollution MBR (membrane bioreactor) membrane assembly

Technical Field

The utility model relates to a water treatment field, especially a high-efficient antipollution MBR membrane module.

Background

In the field of sewage treatment and water resource recycling, MBR (Membrane Bio-Reactor), also known as a Membrane bioreactor, is a novel water treatment technical device combining activated sludge and Membrane separation technology. The device comprises a hollow fiber membrane, and has the advantages that the effluent quality is stable, and the separation effect is far better than that of the traditional sedimentation tank; the floor area is small, the process flow is simple, the structure is compact, and the floor type, the semi-underground type and the underground type can be made; the hydraulic retention time is long, the high-concentration microbial biomass can be maintained, and the degradation efficiency of the refractory organic matters is improved.

In practical application, the MBR membrane module is used for water with high sludge concentration generally, so that the membrane module is easily polluted, the flux is reduced, and the water yield is reduced. MBR membrane operation is negative pressure suction, and a large amount of pollutants are isolated at the membrane silk surface, and membrane pollution is mainly some colloids, suspended solids or macromolecular particles etc. and these pollutants will block up the membrane hole through long-time accumulation.

In the prior art, in order to prevent membrane pollution, two modes of aeration and water backwashing are mainly adopted, wherein the aeration means that a large amount of aeration is carried out at the bottom of a water tank or the bottom of a membrane component, so that bubbles continuously scour the surface of membrane filaments in the rising process, and pollutants can fall off; water backwashing refers to that clean water is reversely pumped into the membrane yarn through a water production port through a water pump, and pollutants are cleaned in an outward flushing mode through water pressure in the membrane yarn.

In addition, the long-time aeration operation of MBR membrane module, root membrane silk constantly disturbance can appear the membrane silk and peel off the condition of glue to and root membrane silk is nearer apart from producing the water mouth, produces the membrane silk height in the middle of the water utilization ratio can be relatively, leads to the root to appear dirty stifled more easily.

The existing aeration structure is generally provided with an aeration port below the membrane wire, and the gas rises under the action of buoyancy and stirs water flow to remove pollutants on the surface of the membrane wire. However, the membrane shell for fixing the membrane filaments usually blocks the ends of the membrane filaments, so that the pollutants at the ends are difficult to remove by means of aeration.

Therefore, a membrane component which has a good aeration decontamination effect and is not easy to fall off at the root of the membrane filament is needed at present.

Disclosure of Invention

The utility model aims at providing an aeration scrubbing is effectual and the MBR membrane module that is difficult to drop in membrane silk root.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an efficient anti-pollution MBR membrane component comprises a plurality of hollow membrane filaments and hollow membrane shells, wherein the membrane filaments are tubular, the end part of the membrane is fixedly arranged on the membrane shell, the membrane filaments are communicated with the membrane shell, the membrane shell is provided with a water production outlet, a plurality of membrane filaments are distributed on the surface of the membrane shell in a strip shape to form a membrane filament group, the surface of the membrane shell is also provided with an aeration component which is arranged around the root part of the membrane thread group, the aeration component comprises a base fixedly connected with the membrane shell and a grating guardrail fixedly arranged on the base, the middle part of the base is provided with a through hole which penetrates through the membrane wire, aeration channels which are mutually communicated are arranged in the base and the grid guardrails, the base is provided with an aeration interface communicated with the aeration channel, and one side of the grid guardrail, which is opposite to the membrane wires, is provided with a plurality of aeration holes communicated with the aeration channel.

Preferably, the base is fixedly connected with the membrane wires in a pouring mode.

Preferably, the grid guardrail comprises at least three layers of baffles which are arranged in parallel, the baffles are fixedly connected through a plurality of vertical rods, and the aeration holes are formed in the baffles in the middle layer.

Further preferably, the baffle plate close to the base is fixedly connected with the base.

Preferably, the aeration holes are uniformly distributed along the length direction of the grating guard rail.

Preferably, a gap is formed between two adjacent membrane filaments.

Preferably, the aeration interface and the water production outlet are arranged on the same side of the membrane module.

Preferably, the membrane filaments are vertically arranged, and the membrane shell and the aeration assembly are provided with an upper group and a lower group which are respectively connected with the upper end part and the lower end part of the membrane filaments.

Preferably, the membrane wire sets are provided in plurality, and a gap is arranged between two adjacent membrane wire sets to serve as a sewage drainage channel.

Preferably, the membrane shell is in the shape of a rectangular straight tube, and the membrane filaments are fixedly arranged on one side surface of the membrane shell.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. because the utility model discloses the base of aeration subassembly is surrounding the root of membrane silk, makes the membrane silk keep the root to be in quiescent condition all the time in the use of continuous shake, prevents the root disturbance to effectively solve the condition that the root membrane silk peeled off glue, reduce the work of mending-leakage maintenance subassembly.

2. The utility model discloses an aeration hole of grid guardrail is to the root aeration of membrane silk for the root of membrane silk also can receive to erode, makes accumulational pollutant clear away between membrane silk root surface and membrane silk and the membrane silk.

3. The membrane silk component is divided into a plurality of groups to set up the blowdown passageway between two adjacent groups, the pollutant that the blowdown passageway can discharge aeration and wash out.

Drawings

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

FIG. 2 is an enlarged schematic view of detail A of FIG. 1;

FIG. 3 is a schematic front view of the present invention;

FIG. 4 is an enlarged schematic view of detail B of FIG. 3;

fig. 5 is a partial enlarged schematic view of the right side view of the present invention.

In the above drawings: 1. membrane silk; 2. a membrane shell; 21. a water production outlet; 3. a base; 31. an aeration interface; 4. a grid guard bar; 41. an aeration hole; 42. a baffle plate; 43. a vertical rod; 5. a trapway.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

the first embodiment is as follows: referring to the attached figure 1, the high-efficiency anti-pollution MBR membrane module comprises a plurality of hollow membrane filaments 1 and a hollow membrane shell 2, wherein the membrane filaments 1 are tubular, its end fixing sets up on membrane shell 2, membrane silk 1 and the mutual intercommunication setting of membrane shell 2, be provided with product water outlet 21 on the membrane shell 2, a plurality of membrane silks 1 are strip distribution at the surface of membrane shell 2 and form membrane silk group, the surface of membrane shell 2 still is provided with the aeration subassembly, the aeration subassembly is around the root setting of membrane silk group, the aeration subassembly includes base 3 with membrane shell 2 fixed connection and the fixed grid guardrail 4 that sets up on base 3, the middle part of base 3 has the through-hole of passing membrane silk 1, all be provided with the aeration passageway (not shown in the figure) of mutual intercommunication in base 3 and the grid guardrail 4, be provided with the aeration interface 31 of intercommunication aeration passageway on the base 3, grid guardrail 4 just is provided with the aeration hole 41 of a plurality of intercommunication aeration passageways to one side of membrane silk 1.

From this, base 3 can be effectively less rocking of the root of membrane silk 1 behind the root of membrane silk 1. And air or air-water mixture directly rushes to the root of the membrane wire 1 from the aeration hole 41 after entering the aeration channel through the aeration interface 31, so that the root of the membrane wire 1 can be better cleaned, meanwhile, air enters the gap between the membrane wire 1 and the membrane wire 1 from the root of the membrane wire 1, pollutants between the membrane wire 1 and the membrane wire 1 are rushed out of the gap, and pollutants attached to the membrane wire 1 can be better clarified.

In this embodiment, fixed connection is pour with membrane silk 1 to base 3 adopts glue to further reduce the influence of the shake of membrane silk 1 to 1 root of membrane silk, can make the root of membrane silk 1 remain quiescent condition throughout, prevent that membrane silk 1 and membrane shell 2 from droing. In addition, for better leak protection, the base 3 of the aeration component can be integrally formed with the membrane shell 2, after the membrane wires 1 are fixedly connected with the membrane shell 2, glue is poured, the root parts of the membrane wires 1 are fixedly connected with the base 3, the second sealing is completed, and water leakage can not occur even if the connection parts of the membrane wires 1 and the membrane shell 2 are loosened, so that the service life of the membrane component is further prolonged.

The grid guard bar 4 comprises three layers of baffle plates 42 which are arranged in parallel, the baffle plates 42 are fixedly connected through a plurality of vertical rods 43, and the aeration holes 41 are arranged on the baffle plates 42 in the middle layer. To increase the stability of the grid guard 4, a baffle 42 adjacent the base 3 is fixedly attached to the base 3. Baffle 42 can compress tightly the root of membrane silk 1, reduces rocking of membrane silk 1 root to prolong the life of membrane silk 1, the through-hole of rectangle is enclosed into with montant 43 to baffle 42 of three-layer, and when aeration hole 41 aeration on the baffle 42 that is in the intermediate level, the through-hole that is located the rectangle of aeration hole 41 both sides can discharge the aeration and the pollutant that dashes down, promotes the efficiency of aeration scrubbing.

Have the clearance between two adjacent membrane silks 1 of this embodiment, except can making things convenient for rivers to get into, promote filtration efficiency, gaseous entering when the clearance between the membrane silk 1 also can make the aeration further promotes the efficiency of aeration scrubbing. The aeration holes 41 are uniformly distributed along the length direction of the grid guard bar 4, so that the membrane wires 1 at each section can be aerated and cleaned.

The aeration interface 31 and the water production outlet 21 are arranged on the same side of the membrane module. Can be convenient for the connection and the inspection of the water production pipe and the aeration pipe.

The membrane component of the embodiment is a curtain type membrane component, the membrane filaments 1 are both vertically arranged, and the membrane shell 2 and the aeration component are provided with an upper group and a lower group which are respectively connected with the upper end part and the lower end part of the membrane filaments 1. The membrane shell 2 is in a rectangular straight tube shape, and the membrane filaments 1 are respectively and fixedly arranged on the upper side surface and the lower side surface. The upper and lower ends of the membrane wire 1 can be cleaned by the upper and lower aeration components, so that the water production of the membrane wire 1 is improved.

The membrane silk group is provided with a plurality of, has the clearance as blowdown passageway 5 between two adjacent membrane silk groups. The gap width of the sewage discharge channel 5 is controlled to be 10-15mm, and under the aeration action of the aeration component at the lower end, pollutants of the membrane thread group can be discharged from the sewage discharge channel 5, so that the anti-fouling capability of the membrane component is improved.

In addition, the high-efficient antipollution MBR membrane module of this embodiment can also directly replace the membrane module among the current clarification plant and use, and the aeration pipe aeration of the aeration subassembly of this embodiment and current equipment is not conflicted, can use simultaneously, and the aeration pipe aeration among the current equipment can further increase the shake of membrane silk, promotes anti-fouling ability.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a high-efficient antipollution MBR membrane module, its includes many hollow membrane silks and hollow membrane shell, the membrane silk is the tubulose, and its end fixing sets up on the membrane shell, the membrane silk with the membrane shell communicates the setting each other, be provided with on the membrane shell and produce water export, its characterized in that: it is a plurality of the membrane silk is in the surface of membrane shell is the strip and distributes and form membrane silk group, the surface of membrane shell still is provided with the aeration subassembly, the aeration subassembly centers on the root setting of membrane silk group, the aeration subassembly include with membrane shell fixed connection's base is in with fixed the setting grid guardrail on the base, the middle part of base has the through-hole of passing the membrane silk, the base with all be provided with the aeration passageway of mutual intercommunication in the grid guardrail, be provided with the intercommunication on the base the aeration interface of aeration passageway, the grid guardrail is just right one side of membrane silk is provided with a plurality of intercommunications the aeration hole of aeration passageway.

2. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: the base is fixedly connected with the membrane wires in a pouring mode.

3. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: the grid guardrail comprises at least three layers of baffle plates which are arranged in parallel, the baffle plates are fixedly connected through a plurality of vertical rods, and the aeration holes are formed in the baffle plates in the middle layer.

4. The high efficiency anti-contamination MBR membrane module according to claim 3, wherein: the baffle close to the base is fixedly connected with the base.

5. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: the aeration holes are uniformly distributed along the length direction of the grid guardrail.

6. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: and a gap is formed between every two adjacent membrane filaments.

7. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: the aeration interface and the water production outlet are arranged on the same side of the membrane component.

8. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: the membrane filaments are vertically arranged, and the membrane shell and the aeration component are provided with an upper group and a lower group which are respectively connected with the upper end part and the lower end part of the membrane filaments.

9. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: the membrane silk group is provided with a plurality of, has the clearance as the blowdown passageway between two adjacent membrane silk groups.

10. The high efficiency anti-contamination MBR membrane module as set forth in claim 1, wherein: the membrane shell is in a rectangular straight tube shape, and the membrane filaments are fixedly arranged on one side surface of the membrane shell.

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