CN217709007U - Membrane grid for small MBR (membrane bioreactor) - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, a membrane grid for small-size MBR is disclosed, including the baffle of intaking, the both sides of baffle of intaking are equipped with first inlet tube and second inlet tube respectively, seted up first apopore on the first inlet tube, seted up the second apopore on the second inlet tube, the bottom of baffle of intaking is equipped with the division board, the both ends of division board all are equipped with the mounting bracket, the fender sediment net all is equipped with on the mounting bracket of both sides, the below of baffle of intaking still is equipped with the filtration box, the bottom of both sides mounting bracket all connects on the diapire of filtration box, the front and back both sides lateral wall of both sides mounting bracket links together with the front and back both sides lateral wall of filtration box respectively, reserve the grid slag groove between the left and right sides lateral wall of filtration box, still be equipped with the clear water groove that is located between the mounting bracket of both sides on the diapire of filtration box; the utility model has the characteristics of improve filtration efficiency, guarantee treatment effect, ensure sewage treatment plant normal operating.

Description

Membrane grid for small MBR (membrane bioreactor)

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to a membrane grid for small-size MBR.

Background

At present, with the continuous development of membrane reaction devices, various types of grids exist in the market, wherein a rotary grid and a rotary drum grid in a mechanical grid are mainly used; the rotary type grating has generally large and thick spacing which is different from 3mm to 100mm, so that the treatment precision of the grating is low, when the rotary type grating is used in a pretreatment link in MBR, only large-volume impurities can be intercepted, fine particles cannot be filtered, especially hair and fiber substances are filtered, the subsequent wastewater treatment is influenced, the blocking phenomenon is caused, and the wastewater treatment effect of the whole MBR is influenced; the drum type grating is complex in structure, high in energy consumption, high in investment cost, complex in operation and maintenance, and not easy to clean in the using process, and meanwhile, due to the structural problem of the drum type grating, effective backwashing cannot be carried out, so that the filtering efficiency of the equipment is greatly reduced after the equipment operates for a period of time, and finally the equipment is invalid; therefore, in order to ensure the normal operation of the membrane reaction device and reduce the maintenance work, a membrane grid is provided.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a membrane grill for a small MBR.

In order to solve the technical problem, the technical scheme of the utility model is that: a membrane grid for a small MBR (membrane bioreactor) comprises a water inlet partition plate, wherein a first water inlet pipe and a second water inlet pipe are respectively arranged on two sides of the water inlet partition plate, a first water outlet hole for water outlet is formed in the first water inlet pipe, and a second water outlet hole for water outlet is formed in the second water inlet pipe;

the bottom of the water inlet partition plate is provided with a partition plate, mounting frames are arranged at two ends of the partition plate, the mounting frames at two sides and the partition plate form an isosceles trapezoid structure, and slag blocking nets are arranged on the mounting frames at two sides;

the below of the baffle of intaking still is equipped with the filtration box that the top is open setting, and the bottom of both sides mounting bracket all connects on the diapire of filtering the box, and both sides lateral wall links together with the front and back both sides lateral wall of filtering the box respectively around the mounting bracket of both sides, and it has the bars sediment groove to reserve between the left and right sides lateral wall of both sides mounting bracket and filtration box, still is equipped with the clear water groove that is located between the mounting bracket of both sides on the diapire of filtering the box.

Preferably, the inclined angle a of the inclined edges of the mounting frames at two sides is 45-60 degrees.

Preferably, the first water outlet holes are distributed in an array manner on the first water inlet pipe along the extending direction of the first water inlet pipe, and the first water outlet holes are formed in the pipe wall of the first water inlet pipe, which is far away from the water inlet partition board.

Preferably, the first water inlet pipe is connected with an external sewage pipe, and a first valve is arranged at the position where the first water inlet pipe is connected with the external sewage pipe.

Preferably, the second water outlet holes are distributed in an array manner on the second water inlet pipe along the extending direction of the second water inlet pipe, and the second water outlet holes are formed in the pipe wall of the second water inlet pipe, which is far away from the water inlet partition board.

Preferably, the second water inlet pipe is connected with an external sewage pipe, and a second valve is arranged at the position where the second water inlet pipe is connected with the external sewage pipe.

Compare prior art, the utility model has the advantages of:

1. the utility model discloses a baffle of intaking is equipped with first inlet tube and second inlet tube respectively, adopts the structure of intaking that two sides were intake, can avoid traditional unilateral grid to overhaul because of need, clear up the during operation make the emergence of the condition that the membrane grid needs the shut down to guarantee sewage treatment plant's normal operating.

2. The utility model discloses a set up first apopore, the second apopore, the division board, a mounting rack, pushing off slag net isotructure, make the sewage that flows from first apopore and second apopore can flow down through the division board under the action of gravity and from the mounting bracket gradually, install pushing off slag net on the mounting bracket hypotenuse can constitute the oblique angle with rivers so that rivers form the baffling, make most bars sediment that the thickness is less than pushing off slag net space also can be separated by the pushing off slag net, can also make the bars sediment of isolating can flow into the bars sediment inslot and collect under the drive of gravity and rivers, thereby can reduce remaining bars sediment volume on the bars sediment net, with this can be fine avoid bars sediment accumulation to lead to the circumstances that the bars sediment net appears blockking up on the bars sediment net to take place, in order to improve filtration efficiency, guarantee the treatment effect.

3. The utility model discloses a set up bars sediment groove, clear water inslot structure, water after filtering through the pushing off slag net can flow into the clear water inslot and collect, and the bars sediment that is filtered out by the pushing off slag net can flow into bars sediment inslot and collect to can thoroughly separate bars sediment and clear water, avoid bars sediment that this can be fine to be washed away by the water-washed and lead to the fact the emergence of the condition of destruction to the MBR membrane.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a schematic structural view of a first water inlet pipe of the present invention;

fig. 4 is a schematic structural view of the second water inlet pipe of the present invention.

Reference numerals: 1. a water inlet clapboard; 2. a first water inlet pipe; 3. a second water inlet pipe; 4. a first water outlet; 5. a second water outlet; 6. a partition plate; 7. a mounting frame; 8. a slag blocking net; 9. a filter box body; 10. a grid slag groove; 11. a clear water tank; 12. a sewage pipe; 13. a first valve; 14. a second valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example (b): referring to fig. 1 to 4, the present embodiment provides a membrane grid for a small MBR, including a water inlet partition plate 1, a first water inlet pipe 2 and a second water inlet pipe 3 are respectively disposed on two sides of the water inlet partition plate 1, the first water inlet pipe 2 and the second water inlet pipe 3 are both communicated with an external sewage pipe 12, a first valve 13 is disposed at a position where the first water inlet pipe 2 is connected with the external sewage pipe 12, and a second valve 14 is disposed at a position where the second water inlet pipe 3 is connected with the external sewage pipe 12; the first valve 13 is opened to enable the external sewage pipe 12 to discharge sewage to be treated into the first water inlet pipe 2, and the second valve 14 is opened to enable the external sewage pipe 12 to discharge sewage to be treated into the second water inlet pipe 3;

a first water outlet hole 4 for water outlet is formed in the first water inlet pipe 2, and a second water outlet hole 5 for water outlet is formed in the second water inlet pipe 3; in this embodiment, first apopore 4 is the array distribution setting along the extending direction of first inlet tube 2 on first inlet tube 2, and second apopore 5 is the array distribution setting along the extending direction of second inlet tube 3 on second inlet tube 3 to it is even to make the water, thereby can utilize the filter area of pushing off the slag net 8 more effectively in follow-up filtering process, thereby can more efficient filter the bars sediment.

The bottom of the water inlet partition plate 1 is fixedly provided with a partition plate 6, the water inlet partition plate 1 is connected to the middle position of the top wall of the partition plate 6, mounting frames 7 are arranged at two ends of the partition plate 6, the mounting frames 7 on two sides and the partition plate 6 form an isosceles trapezoid structure, the inclined angle a of the inclined edges of the mounting frames 7 on the two sides is 45-60 degrees, slag blocking nets 8 are arranged on the mounting frames 7 on the two sides, and the structures of the slag blocking nets 8 arranged on the mounting frames 7 are matched with the structures of the mounting frames 7; a filtering box body 9 with an open top is arranged below the water inlet partition plate 1, the bottoms of the mounting frames 7 on the two sides are connected to the bottom wall of the filtering box body 9, the front side wall and the rear side wall of the mounting frames 7 on the two sides are fixedly connected with the front side wall and the rear side wall of the filtering box body 9 respectively, a grid slag groove 10 is reserved between the mounting frames 7 on the two sides and the left side wall and the right side wall of the filtering box body 9, and a clear water groove 11 positioned between the mounting frames 7 on the two sides is also arranged on the bottom wall of the filtering box body 9; through the arrangement, sewage flowing out of the first water outlet hole 4 and the second water outlet hole 5 flows to the top of the partition plate 6 under the action of gravity and continues to flow downwards from the mounting frame 7 gradually, the slag blocking nets 8 mounted on the inclined edges of the mounting frames 7 on the two sides form an inclined angle with water flow through the inclined arrangement of the slag blocking nets 8, so that the water flow forms deflection, the water flow flows into the clean water tank 11 from the slag blocking nets 8 to be collected, the slag blocking nets 8 filter the water flow, grid slag in the water flow is separated, and meanwhile, the deflection can also enable most of grid slag with the thickness smaller than gaps of the slag blocking nets 8 to be separated by the slag blocking nets 8, so that the filtering effect is improved, and the treatment effect is ensured; the grid slag filtered and separated by the slag blocking net 8 flows into the grid slag groove 10 under the drive of gravity and water flow to be collected, so that the clear water and the grid slag are separated, the residual grid slag amount on the slag blocking net 8 can be reduced, and the situation that the slag blocking net 8 is blocked due to the accumulation of the grid slag on the slag blocking net 8 is well avoided.

For further guaranteeing the treatment to sewage, first apopore 4 is located first inlet tube 2 and is kept away from on the pipe wall of the baffle 1 side of intaking, and second apopore 5 is located second inlet tube 3 and is kept away from on the pipe wall of the baffle 1 side of intaking to make the sewage that flows out from first apopore 4 and second apopore 5 can be better flow to the pushing off the slag net 8 of both sides on, with this treatment effect to sewage of assurance.

The working principle of the utility model is that when the device is used, the sewage quantity to be treated according to the needs is less, if the sewage quantity to be treated is less, the one-sided filtration can be carried out, namely, the sewage enters the first water inlet pipe 2 or the second water inlet pipe 3 and flows out from the first water outlet hole 4 or the second water outlet hole 5 by opening the first valve 13 or the second valve 14, the filtering treatment work is carried out by utilizing the slag blocking net 8 on the side, if the sewage quantity to be treated is larger, the two-sided filtration is carried out, namely, the sewage simultaneously enters the first water inlet pipe 2 and the second water inlet pipe 3 and flows out from the first water outlet hole 4 and the second water outlet hole 5 by opening the first valve 13 and the second valve 14, and the filtering treatment work is carried out by utilizing the slag blocking nets 8 on the two sides; in the unilateral filtration process, if more needs clear up or pushing off the slag 8 and need carry out operations such as maintenance on the pushing off the slag net 8 of filtration side, the accessible is closed and is opened the opposite side valve behind the valve that corresponds the side to utilize the pushing off the slag net 8 of opposite side to filter, with this normal operating who guarantees sewage treatment plant.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above is only the typical example of the utility model, in addition, the utility model can also have other multiple concrete implementation manners, and the technical scheme that all adopt equivalent replacement or equivalent transform to form all falls within the scope of the utility model.

Claims (6)

1. A membrane grid for a small MBR, characterized in that: the water inlet device comprises a water inlet partition plate (1), wherein a first water inlet pipe (2) and a second water inlet pipe (3) are respectively arranged on two sides of the water inlet partition plate (1), a first water outlet hole (4) for water outlet is formed in the first water inlet pipe (2), and a second water outlet hole (5) for water outlet is formed in the second water inlet pipe (3);

the bottom of the water inlet partition plate (1) is provided with a partition plate (6), two ends of the partition plate (6) are respectively provided with a mounting rack (7), the mounting racks (7) on two sides and the partition plate (6) form an isosceles trapezoid structure, and the mounting racks (7) on two sides are respectively provided with a slag blocking net (8);

the below of baffle (1) of intaking still is equipped with the top and is filtration box (9) that open setting, the bottom of both sides mounting bracket (7) all connects on the diapire of filtering box (9), both sides lateral wall links together with the front and back both sides lateral wall of filtering box (9) respectively around both sides mounting bracket (7), it has bars sediment groove (10) to reserve between the left and right sides lateral wall of both sides mounting bracket (7) and filtration box (9), still be equipped with clear water groove (11) that are located between both sides mounting bracket (7) on the diapire of filtering box (9).

2. The membrane grid for a small MBR of claim 1, wherein: the inclined angle a of the inclined edges of the mounting racks (7) on the two sides is 45-60 degrees.

3. The membrane grid for a small MBR of claim 1, wherein: first apopore (4) are the array distribution setting along the extending direction of first inlet tube (2) on first inlet tube (2), and first apopore (4) are located first inlet tube (2) and are kept away from on the pipe wall of intaking baffle (1) side.

4. The membrane grid for a small MBR of claim 1, wherein: an external sewage pipe (12) is connected to the first water inlet pipe (2), and a first valve (13) is arranged at the position where the first water inlet pipe (2) is connected with the external sewage pipe (12).

5. The membrane grid for a small MBR of claim 1, wherein: the second apopore (5) are the array distribution setting along the extending direction of second inlet tube (3) on second inlet tube (3), and second apopore (5) are located second inlet tube (3) and are kept away from on the pipe wall of intaking baffle (1) side.

6. The membrane grid for a small MBR of claim 1, wherein: an external sewage pipe (12) is connected to the second water inlet pipe (3), and a second valve (14) is arranged at the position where the second water inlet pipe (3) is connected with the external sewage pipe (12).

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