CN110818071A

CN110818071A - Sewage treatment equipment with membrane bioreactor

Info

Publication number: CN110818071A
Application number: CN201911314785.9A
Authority: CN
Inventors: 朱东元
Original assignee: Shaoguan Chengmei New Energy Technology Co Ltd
Current assignee: Anshun Shangyuan Water Technology Co., Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-02-21
Anticipated expiration: 2039-12-19
Also published as: CN110818071B

Abstract

The embodiment of the invention discloses sewage treatment equipment with a membrane bioreactor, which comprises a main frame which is arranged in an aeration tank and is cuboid, wherein two end surfaces of the main frame are closed surfaces, inner guide rollers are arranged at the top ends of two sides of the main frame, outer guide rollers are arranged at the bottom ends of two sides of the main frame, and automatic winding mechanisms are arranged on the two sides of the main frame on the aeration tank, so that filter cloth can cover the opening surface of the main frame around two groups of the inner guide rollers and the outer guide rollers, therefore, water in the aeration tank needs to pass through the filter cloth and flow into the main frame, the filter cloth can intercept impurities with the diameter larger than 1mm, and the flow velocity of water flow in the main frame is reduced; through with MBR membrane tubular connection on two sets of rotatable rotation water boxes, can drive when MBR membrane tube receives water thrust and rotate the water box rotation for the horizontal shearing force that MBR membrane tube and the junction that rotates the water box received reduces, makes the MBR module of installation in the main frame not fragile.

Description

Sewage treatment equipment with membrane bioreactor

Technical Field

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

Background

The membrane bioreactor is also called MBR, is a novel water treatment technology combining a membrane separation unit and a biological treatment unit, and has the advantages of good effluent quality, low operation cost, small sludge amount, small occupied area and the like.

In the sewage treatment process, an MBR module is generally installed in an aeration tank and used for further filtering the sewage after primary filtration, and as the MBR membrane needs to be in direct contact with the sewage and a large amount of gas can be sprayed out from the bottom of the tank in the aeration tank to enable the sewage to flow in the aeration tank, the MBR module can carry large, sharp and hard particles to cause mechanical damage to the membrane surface along with the flow of the sewage in the aeration tank, and the large, sharp and hard particles also comprise fibers and hair wound around membrane wires, so that the maximum particle diameter of the particles is required to be less than 2mm in the pretreatment process, but the sewage in the aeration tank can hardly reach ideal conditions under general conditions.

In addition, when stronger rivers drive MBR membrane deformation swing, can receive great transverse shear force to MBR membrane and module connecting portion, consequently the junction of MBR membrane and module easily receives the damage, shortens life.

Disclosure of Invention

Therefore, the embodiment of the invention provides sewage treatment equipment with a membrane bioreactor, which aims to solve the problems that sewage in an aeration tank in the prior art is difficult to achieve ideal conditions, so that an MBR membrane is easy to be mechanically damaged, and the MBR membrane is easy to be damaged by water flow thrust.

In order to achieve the above object, an embodiment of the present invention provides the following:

a sewage treatment device with a membrane bioreactor comprises a main frame which is installed in an aeration tank and is cuboid, two end faces of the main frame are closed faces, inner guide rollers are arranged at the top ends of two sides of the main frame, outer guide rollers are arranged at the bottom ends of two sides of the main frame, automatic winding mechanisms are arranged on the aeration tank at two sides of the main frame, rotatable filter cloth is arranged in the automatic winding mechanisms, and the filter cloth can sequentially penetrate through two groups of the inner guide rollers and two groups of the outer guide rollers to cover two side faces and bottom end faces of the main frame;

the inner movable connection of the main frame has a U-shaped water pipe frame, the water pipe frame is provided with two groups of water pumping pipes which are communicated with the water pipe frame and transversely distributed, the outer side of each water pumping pipe is provided with a rotatable rotating water box, the outer side of each rotating water box is provided with a sealing box, the inner part of each sealing box is provided with a plurality of groups of connecting hoses which extend to the inner part of each water pumping pipe, the sealing box is provided with a plurality of groups of MBR membrane pipes which extend to the other group of MBR membrane pipes on the sealing box, and the sealing boxes are communicated with each other through the MBR membrane pipes.

As a preferred scheme of the invention, isolation nets are arranged between adjacent MBR membrane tubes, two ends of each isolation net are connected to the front side and the rear side of the main frame, the isolation nets are fixedly connected to the rotary water box through stay wires, a plurality of groups of ropes are vertically arranged between two adjacent isolation nets, and the ropes are inserted into the MBR membrane tubes between the two adjacent isolation nets in a weaving manner;

the separation net between two adjacent stay wires on the same separation net is arc-shaped under the action of gravity.

As a preferable scheme of the invention, guide plates are arranged on two sides of the main frame, a support plate is arranged at the bottom end of each guide plate, a plurality of groups of clamping grooves for clamping the outer side of the water pipe frame are arranged on each guide plate, and the water pipe frame sequentially penetrates through the two groups of guide plates through the clamping grooves and then is arranged at the top ends of the two groups of support plates.

As a preferable scheme of the present invention, the automatic winding mechanism includes a support mechanism rotatably connected to the filter cloth, and a winding mechanism that is driven by a motor and can automatically receive the filter cloth.

As a preferable scheme of the invention, one side of the water pipe frame is provided with an L-shaped aeration pipe, and a cross bar of the aeration pipe is provided with a plurality of groups of air holes which are distributed at equal intervals.

As a preferable scheme of the invention, the two groups of water pumping pipes are respectively positioned at the top end and the bottom end of the water pipe frame, and the two groups of water pumping pipes are communicated through the water pipe frame.

As a preferable scheme of the invention, a triangular support frame is arranged on the outer side of the water pumping pipe, and a roller attached to the inside of the rotary water box is arranged in the support frame.

As a preferable scheme of the present invention, the length of the connection hose is greater than the length of the pumping pipe and the inner wall of the rotating water box, and the maximum rotation angle of the rotating water box is 45 to 50 degrees.

As a preferable scheme of the present invention, the length of the MBR membrane tube is greater than the distance between the two sets of the seal boxes, and the MBR membrane tube is communicated with the water pumping tube through the connection hose.

As a preferable scheme of the invention, two groups of the support frames are arranged on the outer side of the water pumping pipe, and the two groups of the support frames are respectively close to the openings at the two ends of the rotary water box.

The embodiment of the invention has the following advantages:

according to the invention, two groups of inner guide rollers and outer guide rollers are respectively arranged at four corners of the outer side of the main frame, so that the filter cloth can cover the opening surface of the main frame around the two groups of inner guide rollers and the outer guide rollers, therefore, water in the aeration tank needs to pass through the filter cloth and flow into the main frame, the filter cloth can intercept impurities with the diameter larger than 1mm, and the flow velocity of water in the main frame is reduced, so that an MBR module arranged in the main frame is not easy to damage;

in addition, through with MBR membrane union coupling on two sets of rotatable rotation water boxes, can drive when MBR membrane pipe receives rivers thrust and rotate the water box and rotate for the horizontal shearing force that MBR membrane pipe and the junction that rotates the water box received reduces, has prolonged the life of MBR membrane pipe.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is an overall cross-sectional view of an embodiment of the present invention;

FIG. 2 is a schematic view of a main frame structure according to an embodiment of the present invention;

FIG. 3 is a front view of a water hose rack in an embodiment of the present invention;

fig. 4 is a schematic view of a rotary water box connection in an embodiment of the present invention.

In the figure: 1-a main frame; 2-inner guide roller; 3-outer guide roll; 4-an automatic winding mechanism; 5-filter cloth; 6-water pipe frame; 7-a water pumping pipe; 8-rotating the water box; 9-an isolation net; 10-a stay wire; 11-a cord;

101-a guide plate; 102-a support plate;

601-an aerator pipe; 602-air holes;

701-a support frame; 702-a roller;

801-sealing box; 802-connecting a hose; 803-MBR membrane tubes.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.

As shown in figures 1 and 2, the invention provides a sewage treatment device with a membrane bioreactor, which specifically comprises a main frame 1 which is arranged in an aeration tank and is cuboid, two end surfaces of the main frame 1 are closed surfaces, the top ends of two sides of the main frame 1 are provided with inner guide rollers 2, the bottom ends of two sides of the main frame 1 are provided with outer guide rollers 3, two sides of the main frame 1 are positioned on the aeration tank and are provided with automatic winding mechanisms 4, rotatable filter cloth 5 is arranged in the automatic winding mechanisms 4, the automatic winding mechanisms 4 comprise supporting mechanisms which are rotatably connected with the filter cloth 5 and winding mechanisms which can automatically take in the filter cloth 5 through the driving of a motor, the filter cloth 5 can sequentially pass through two groups of inner guide rollers 2 and two groups of outer guide rollers 3 to cover two side surfaces and bottom end surfaces of the main frame 1, when in use, the filter cloth 5 in the automatic winding mechanisms 4 sequentially extends into the aeration tank from the space between the inner, afterwards, the non-woven fabric is pulled to the bottom end of the main frame 1 and then attached to the outer sides of the two groups of outer guide rollers 3, and the non-woven fabric extends out of the space between the other group of inner guide rollers 2 and the main frame 1, so that the filter cloth 5 can cover the opening surface of the main frame 1, therefore, water in the aeration tank needs to penetrate through the filter cloth 5 and flow into the main frame 1, the filter cloth 5 can intercept impurities with the diameter larger than 1mm, the flow velocity of water in the main frame 1 is reduced, an MBR (membrane bioreactor) module installed in the main frame 1 is not easy to damage, the intercepted impurities can be attached to the part, which covers the main frame 1 in the using process, of the filter cloth 5, therefore, the filter cloth 5 can be pulled by controlling the automatic winding mechanism 4 at intervals, the polluted filter cloth 5 is rolled, and the polluted.

As shown in fig. 3, an isolation net 9 is disposed between adjacent MBR membrane tubes 803, further, the isolation net 9 may be replaced by a jacket-type bag structure, and an opening of the jacket-type bag structure is disposed on a side surface of the main frame 1, so as to increase water inflow after the filter cloth 5 is disposed while filtering the water.

The isolation nets 9 are fixedly connected to the rotary water box 8 through stay wires 10, a plurality of groups of ropes 11 are vertically arranged between every two adjacent isolation nets 9, and the ropes 11 are inserted into MBR membrane tubes 803 between every two adjacent isolation nets 9 in a weaving mode;

when the velocity of water flow in the aeration tank is very fast, can make to rotate water box 8 and use drinking-water pipe 7 as the pivot, carry out reciprocal rotation, and then stimulate the stay wire 10 of fixed connection on rotating water box 8 to make the fine motion of separation net 9 reciprocating from top to bottom, the motion of separation net 9 then makes cotton rope 11 at the slight friction in MBR membrane pipe 803 surface, gets rid of the accumulational deposit in MBR membrane pipe 803 surface, improves the filtration efficiency of MBR membrane pipe 803 to the water.

Further, the isolation net 9 between two adjacent stay wires 10 on the same isolation net 9 is arc-shaped under the action of gravity, so that the isolation net 9 between two adjacent MBR membrane pipes 803 keeps a deformation margin, can be deformed adaptively under the action of strong water flow, and can also keep the state of each MBR membrane pipe 803 through the cotton rope 11, and simultaneously can also utilize the deformation of the isolation net 9 to realize the cleaning of deposits on the surfaces of the MBR membrane pipes 803.

Since the strings 11 are not woven and connected to the MBR membrane tubes 803 in a tight state, the frictional force of the strings 11 is small when cleaning deposits on the surfaces of the MBR membrane tubes 803, and thus the MBR membrane tubes 803 are not damaged greatly.

The distance between the inner guide roller 2 and the side face of the main frame 1 is 5mm-8mm, and the distance between the outer guide roller 3 and the side face of the main frame 1 exceeds 5mm-8mm, so that when the filter cloth 5 covers the outer side of the main frame 1, a relatively small distance is kept between the filter cloth 5 and the main frame 1 and is not contacted with the main frame 1, and the filter cloth 5 is prevented from being caught by the main frame 1 when being rolled.

As shown in fig. 3, the internal swing joint of main frame 1 has the water pipe frame 6 that is the U shape, the both sides of main frame 1 are equipped with deflector 101, and the bottom that is located deflector 101 is equipped with backup pad 102, be equipped with the draw-in groove in the 6 outsides of a plurality of groups block water pipe frame on the deflector 101, water pipe frame 6 passes two sets of deflectors 101 back through the draw-in groove and lies in the top of two sets of backup pads 102, when the installation MBR module, the water pipe frame 6 card that will be the U shape is gone into in the corresponding recess of two sets of deflectors 101, until the bottom and the backup pad 102 contact of water pipe frame 6, later with full water pipe frame 6 of card in the main frame 1, make the installation of MBR.

As shown in fig. 3 and 4, two groups of water pumping pipes 7 are arranged on the water pipe frame 6 and are communicated with the water pipe frame 6 and are distributed transversely, two groups of water pumping pipes 7 are respectively arranged at the top end and the bottom end of the water pipe frame 6, two groups of water pumping pipes 7 are communicated with each other through the water pipe frame 6, a rotatable rotating water box 8 is arranged outside each water pumping pipe 7, a triangular support frame 701 is arranged outside each water pumping pipe 7, rollers 702 attached to the inside of the rotating water box 8 are arranged in each support frame 701, two groups of support frames 701 are arranged outside each water pumping pipe 7, the two groups of support frames 701 are respectively close to openings at two ends of the rotating water box 8, the MBR membrane pipes 803 are connected with the two groups of seal boxes 801, when the MBR membrane pipes 803 are subjected to water flow thrust, the two groups of seal boxes 801 are driven to rotate around the outside of water pumping pipes 7, and the transverse shearing force applied to the joints of the MBR membrane, therefore, the connection between the MBR membrane pipe 803 and the seal box 801 is not easy to damage, and the service life of the MBR membrane pipe 803 is prolonged.

As shown in fig. 4, a sealing box 801 is arranged on the outer side of the rotary water box 8, a plurality of groups of connecting hoses 802 extending to the inside of the water pumping pipe 7 are arranged inside the sealing box 801, the length of the connecting hoses 802 is greater than the length of the water pumping pipe 7 and the inner wall of the rotary water box 8, the maximum rotation angle of the rotary water box 8 is 45-50 degrees, when the sealing box 801 rotates around the outer side of the water pumping pipe 7, the water pumping pipe 7 can be always communicated with the sealing box 801 through the connecting hoses 802, and the connecting hoses 802 can be prevented from being pulled off due to the fact that the sealing box 801 excessively rotates by limiting the rotation angle of the sealing box 801.

As shown in fig. 3, a plurality of groups of MBR membrane tubes 803 extending to another group of seal boxes 801 are arranged on the seal boxes 801, the two groups of seal boxes 801 are communicated with each other through the plurality of groups of MBR membrane tubes 803, the length of the MBR membrane tubes 803 is greater than the distance between the two groups of seal boxes 801, and the MBR membrane tubes 803 are communicated with the water pumping tube 7 through the connecting hose 802, because the length of the MBR membrane tubes 803 is greater than the distance between the two groups of seal boxes 801, the MBR membrane tubes 803 are in a loose state after being connected, and are straightened when the two groups of seal boxes 801 rotate to the maximum distance, which not only increases the contact area between the MBR membrane tubes 803 and sewage, but also improves the impact resistance of the loose MBR membrane.

As shown in fig. 3, one side of the water pipe frame 6 is provided with an L-shaped aeration pipe 601, a plurality of sets of air holes 602 are arranged on a cross bar of the aeration pipe 601 at equal intervals, the top end of the water pipe frame 6 is connected with a suction pump, and the top end of the aeration pipe 601 is communicated with an air pump, so that the suction pump generates suction force in the water pipe frame 6, and the water pumping pipe 7, the connecting hose 802, the seal box 801 and the MBR membrane pipe 803 which are communicated with the water pipe frame 6 generate low-pressure suction force, so that the sewage is pumped out after passing through the MBR membrane pipe 803, air is filled into the aeration pipe 601 through the air pump, and is sprayed out of the MBR membrane pipe 803 through the plurality of sets of air holes 602, activated sludge and macromolecular organic substances in the reaction tank are retained by the MBR membrane pipe 803, aerobic bacterial activity on the MBR membrane pipe is enhanced.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A sewage treatment device with a membrane bioreactor is characterized in that: the aeration tank comprises a cuboid main frame (1) arranged in the aeration tank, two end faces of the main frame (1) are closed faces, inner guide rollers (2) are arranged at the top ends of two sides of the main frame (1), outer guide rollers (3) are arranged at the bottom ends of two sides of the main frame (1), automatic winding mechanisms (4) are arranged on the two sides of the main frame (1) on the aeration tank, rotatable filter cloth (5) is arranged in the automatic winding mechanisms (4), and the filter cloth (5) can sequentially penetrate through two groups of the inner guide rollers (2) and two groups of the outer guide rollers (3) to cover two side faces and bottom end faces of the main frame (1);

the utility model discloses a U-shaped water pipe frame, including main frame (1), water pipe frame (6) be equipped with two sets of with water pipe frame (6) intercommunication and be transverse distribution's drinking-water pipe (7), the outside of drinking-water pipe (7) is equipped with rotatable rotation water box (8), the outside of rotating water box (8) is equipped with seal box (801), the inside of seal box (801) is equipped with a plurality of groups and extends to drinking-water pipe (7) inside coupling hose (802), and be equipped with a plurality of groups on seal box (801) and extend to another group MBR membrane tube (803) on seal box (801), two sets of seal box (801) are through a plurality of groups MBR membrane tube (803) intercommunication.

2. The sewage treatment equipment with the membrane bioreactor according to claim 1, wherein an isolation net (9) is arranged between adjacent MBR membrane tubes (803), two ends of the isolation net (9) are connected to the front side and the rear side of the main frame (1), the isolation net (9) is fixedly connected to the rotary water box (8) through a stay wire (10), a plurality of groups of thread ropes (11) are vertically arranged between two adjacent isolation nets (9), and the thread ropes (11) are inserted into the MBR membrane tubes (803) between two adjacent isolation nets (9) in a weaving manner;

the separation net (9) between two adjacent stay wires (10) on the same separation net (9) is arc-shaped under the action of gravity.

3. The sewage treatment equipment with the membrane bioreactor according to claim 1, wherein guide plates (101) are arranged on two sides of the main frame (1), a support plate (102) is arranged at the bottom end of each guide plate (101), a plurality of groups of clamping grooves for clamping the outer side of the water pipe frame (6) are arranged on each guide plate (101), and the water pipe frame (6) sequentially penetrates through the two groups of guide plates (101) through the clamping grooves and then is arranged at the top ends of the two groups of support plates (102).

4. The sewage treatment equipment with a membrane bioreactor according to claim 1, wherein the automatic rolling mechanism (4) comprises a support mechanism which is rotatably connected with the filter cloth (5) and a rolling mechanism which can automatically receive the filter cloth (5) through motor drive.

5. The sewage treatment equipment with the membrane bioreactor according to claim 1, wherein one side of the water pipe frame (6) is provided with an L-shaped aeration pipe (601), and a cross bar of the aeration pipe (601) is provided with a plurality of groups of air holes (602) which are distributed at equal intervals.

6. The sewage treatment apparatus with a membrane bioreactor according to claim 1, wherein two sets of said water pumping pipes (7) are respectively located at the top end and the bottom end of said water pipe frame (6), and two sets of said water pumping pipes (7) are communicated through said water pipe frame (6).

7. The sewage treatment equipment with the membrane bioreactor according to claim 1, wherein a triangular support frame (701) is arranged at the outer side of the water pumping pipe (7), and a roller (702) attached to the inside of the rotary water box (8) is arranged in the support frame (701).

8. The sewage treatment apparatus with a membrane bioreactor according to claim 1, wherein the length of the connection hose (802) is greater than the length of the water pumping pipe (7) and the inner wall of the rotating water box (8), and the maximum rotation angle of the rotating water box (8) is 45-50 degrees.

9. The sewage treatment apparatus with a membrane bioreactor according to claim 1, wherein the length of the MBR membrane tubes (803) is greater than the distance between two sets of the sealing boxes (801), and the MBR membrane tubes (803) are communicated with the water suction pipe (7) through the connection hose (802).

10. The sewage treatment equipment with the membrane bioreactor according to claim 1, wherein two sets of the support frames (701) are arranged on the outer side of the water pumping pipe (7), and the two sets of the support frames (701) are respectively close to the openings at the two ends of the rotary water box (8).