CN218755223U

CN218755223U - Membrane bioreactor

Info

Publication number: CN218755223U
Application number: CN202221804734.1U
Authority: CN
Inventors: 马永强; 陈汝嘉
Original assignee: Shaanxi Environmental Protection Group Ecological Construction Management Co ltd
Current assignee: Shaanxi Environmental Protection Group Ecological Construction Management Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-03-28
Anticipated expiration: 2032-07-13

Abstract

The utility model belongs to the field of membrane bioreactors, and discloses a membrane bioreactor, which comprises a box body and a tubular MBR membrane component arranged in the box body; the device comprises an MBR membrane assembly, a tank body, a vertically extending cleaning pipe, first spray heads and a driving module, wherein the two ends of the MBR membrane assembly are fixedly connected with the top and the bottom of the tank body respectively; the cleaning pipe penetrates through the top of the box body and is in running fit with the box body, a rotary joint for connecting an external water supply pipe is arranged at the upper end of the cleaning pipe, and the lower end of the cleaning pipe is arranged in a closed manner; the scheme can realize backwashing of the MBR membrane component in the membrane bioreactor, improve the cleaning effect and prolong the service life of the MBR membrane component.

Description

Membrane bioreactor

Technical Field

The utility model relates to the field of membrane bioreactors, in particular to a membrane bioreactor.

Background

The membrane bioreactor is also called MBR technology, is a novel water treatment technical means combining a membrane separation unit and a biological treatment unit, has stable filtration effect and good quality, and has short time for intercepting sewage under high volume load, small occupied space in the tank and no sludge sedimentation.

The membrane bioreactor is through detaining the impurity in the sewage on the MBR membrane module, lets the water pass through the MBR membrane module, reaches filterable effect, and in the use, along with the lapse of time, impurity is gradually at the accumulation of MBR membrane module, influences the filter effect of MBR module, but common cleaning methods is, sprays the lateral surface of MBR membrane module, clears away the impurity that attaches at the surface through washing away, can't carry out the back flush from the inboard of MBR membrane module.

Therefore, the scheme solves the problem of how to realize backwashing of the MBR membrane component in the membrane bioreactor, improves the cleaning effect and prolongs the service life of the MBR membrane component.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a membrane bioreactor realizes the MBR membrane module among the back flush membrane bioreactor, improves the cleaning performance, prolongs the life of MBR membrane module.

The utility model provides a technical scheme does: a membrane bioreactor comprises a box body and an MBR membrane component with a cylindrical structure arranged in the box body; the device comprises an MBR membrane assembly, a tank body, a vertically extending cleaning pipe, first spray heads and a driving module, wherein the two ends of the MBR membrane assembly are fixedly connected with the top and the bottom of the tank body respectively; the top that runs through the box of scavenge pipe, and with box normal running fit, the upper end of scavenge pipe is equipped with the rotary joint who is used for connecting peripheral hardware delivery pipe, the lower extreme of scavenge pipe is the closed arrangement.

In the membrane bioreactor, the bottom of the box body is provided with a drain outlet positioned at the lower end of the MBR membrane component and a drain valve positioned at the drain outlet.

In the membrane bioreactor, the driving module comprises a motor and a transmission belt which are arranged on the upper side of the box body; the driving belt is respectively tensioned with the power output end of the motor and the outer wall of the cleaning pipe.

In the membrane bioreactor, the cleaning pipe is sleeved with a gear, and the inner side of the transmission belt is meshed with the gear.

In the membrane bioreactor, a spray pipe communicated with an external water supply source and a second spray head which is positioned on the spray pipe and is arranged towards the MBR membrane module are also arranged in the box body; the spray pipes vertically penetrate through the top of the box body and are fixedly connected with the inner wall of the box body, and the spray pipes are arranged on the outer side of the MBR membrane assembly in a surrounding mode.

In the membrane bioreactor, the membrane bioreactor according to claim 1, wherein the bottom of the tank body is provided with a sludge groove with an annular structure, a slag discharge port communicating the sludge groove with the outer side of the tank body, and a slag discharge valve positioned at the slag discharge port.

In the membrane bioreactor, the cross section of the sludge tank is in a trapezoidal structure with a wide upper part and a narrow lower part.

In the membrane bioreactor, a plurality of support rods arranged around the outer side of the MBR membrane module are arranged in the box body, and the bottom part of the box body is provided with support legs.

After the technical scheme is adopted in the utility model, its beneficial effect who has is:

this scheme is through setting up the scavenge pipe, the scavenge pipe runs through the top of box and is located the MBR membrane module directly over, the MBR membrane module is the tubular structure, better filter effect has, the lower extreme of scavenge pipe extends to the inboard of MBR membrane module, rotary joint and peripheral hardware's water supply pipe intercommunication are passed through to the upper end, the washing liquid gets into the scavenge pipe through rotary joint, under the effect of pressure, first shower nozzle blowout on the scavenge pipe, wash away the inboard of MBR membrane module, the drive module drive scavenge pipe at box top rotates, drive first shower nozzle and rotate around the scavenge pipe axis, the inboard to the MBR membrane module carries out 360 degrees washs, MBR membrane module in the back flush membrane bioreactor is realized, the cleaning performance is improved, the life of extension MBR membrane module.

Drawings

FIG. 1 is a schematic sectional view of a membrane bioreactor according to example 1 of the present invention;

FIG. 2 is a schematic top view of the membrane bioreactor of example 1 of the present invention.

Reference numerals: 1. a box body; 2. cleaning the tube; 3. a drive module; 4. a shower pipe; 5. an MBR membrane module;

101. a water outlet; 102. a support bar; 103. a sludge tank; 104. a slag discharge port; 105. supporting legs; 106. a slag discharge valve; 107. a blowoff valve; 108. a sewage draining outlet; 109. a water inlet.

201. A rotary joint; 202. a gear; 203. a first nozzle; 301. a transmission belt; 401. and a second spray head.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Example 1:

as shown in fig. 1-2, a membrane bioreactor comprises a tank 1, and a cylindrical MBR membrane module 5 arranged in the tank 1; the two ends of the MBR membrane module 5 are respectively and fixedly connected with the top and the bottom of the box body 1, the box body 1 is provided with a water outlet 101 and a water inlet 109 which are positioned at the inner side and the outer side of the MBR membrane module 5, the MBR membrane module further comprises a vertically extending cleaning pipe 2 which is arranged at the inner side of the MBR membrane module 5, first nozzles 203 which are arranged on the cleaning pipe 2 and are arranged at intervals along the axis, and a driving module 3 which drives the cleaning pipe 2 to rotate; the top that runs through box 1 of scavenge pipe 2, and with box 1 normal running fit, the upper end of scavenge pipe 2 is equipped with the rotary joint 201 that is used for connecting the peripheral hardware delivery pipe, the lower extreme of scavenge pipe 2 is the closed arrangement.

In practical application, the bottom of the tank 1 is provided with a sewage outlet 108 at the lower end of the MBR membrane module 5, and a sewage valve 107 at the sewage outlet 108.

A small amount of impurities are generated on the inner side surface of the MBR membrane module 5, and the impurities fall to the bottom of the tank 1 after being flushed by the first spray nozzle 203 and are discharged through the sewage discharge port 108.

The driving module 3 has a specific structure that the driving module 3 comprises a motor and a transmission belt 301 which are arranged on the upper side of the box body 1; the driving belt 301 is respectively tensioned with the power output end of the motor and the outer wall of the cleaning pipe 2.

The specific connection mode of the motor and the cleaning tube 2 is that the cleaning tube 2 is sleeved with a gear 202, and the inner side of the transmission belt 301 is meshed with the gear 202.

In a further improvement of this embodiment, a spray pipe 4 communicated with an external water supply source and a second spray head 401 located on the spray pipe 4 and arranged towards the MBR membrane module 5 are further arranged in the box body 1; the spray pipes 4 vertically penetrate through the top of the box body 1 and are fixedly connected with the inner wall of the box body 1, and the spray pipes 4 are arranged on the outer side of the MBR membrane assembly 5 in a surrounding mode.

The cleaning liquid is sprayed out from the second spray head 401 on the spray pipe 4 to wash the outer side surface of the MBR membrane module 5, and impurities attached to the outer side surface of the MBR membrane module 5 are removed.

In this embodiment, the bottom of the tank 1 is provided with a sludge tank 103 having an annular structure, a slag discharge port 104 communicating the sludge tank 103 with the outside of the tank 1, and a slag discharge valve 106 located at the slag discharge port 104.

Preferably, the cross section of the sludge tank 103 is in a trapezoidal structure with a wide upper part and a narrow lower part; the open area of the upper side of the sludge tank 103 is increased, so that more impurities fall into the sludge tank 103, and the area of the bottom of the sludge tank 103 is reduced, so that the impurities can fall into the slag discharge hole 104 more easily.

In addition, a plurality of support rods 102 are arranged in the box body 1 and are arranged around the outer side of the MBR membrane module 5, and the bottom part of the box body 1 is provided with support legs 105; the support rod 102 supports the middle part of the box body 1, the overall strength of the box body 1 is improved, and the support legs 105 are arranged to enable the bottom of the box body 1 to be arranged in a suspended mode, so that a space is provided for installing pipelines and valves.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all should be included in the scope of the present invention.

Claims

1. A membrane bioreactor comprises a box body and an MBR membrane component with a cylindrical structure arranged in the box body; the device comprises a tank body, an MBR membrane assembly, a first spray nozzle, a driving module and a second spray nozzle, wherein the tank body is provided with a water outlet and a water inlet which are positioned on the inner side and the outer side of the MBR membrane assembly; the top that runs through the box of scavenge pipe, and with box normal running fit, the upper end of scavenge pipe is equipped with the rotary joint who is used for connecting peripheral hardware delivery pipe, the lower extreme of scavenge pipe is the closed arrangement.

2. The membrane bioreactor of claim 1, wherein the bottom of the tank is provided with a drain outlet at the lower end of the MBR membrane module and a drain valve at the drain outlet.

3. The membrane bioreactor of claim 2, wherein the driving module comprises a motor, a transmission belt arranged on the upper side of the tank body; the driving belt is respectively tensioned with the power output end of the motor and the outer wall of the cleaning pipe.

4. The membrane bioreactor as defined in claim 3, wherein the cleaning tube is sleeved with a gear, and the inner side of the driving belt is engaged with the gear.

5. The membrane bioreactor of claim 1, wherein a spray pipe communicated with an external water supply source and a second spray head arranged on the spray pipe and facing the MBR membrane module are further arranged in the tank body; the spray pipes vertically penetrate through the top of the box body and are fixedly connected with the inner wall of the box body, and the spray pipes are arranged on the outer side of the MBR membrane assembly in a surrounding mode.

6. The membrane bioreactor of claim 1, wherein the bottom of the tank body is provided with a sludge groove with an annular structure, a slag discharge port communicating the sludge groove with the outer side of the tank body, and a slag discharge valve positioned at the slag discharge port.

7. The membrane bioreactor of claim 6, wherein the sludge tank has a trapezoidal cross-section with a wide top and a narrow bottom.

8. The membrane bioreactor of claim 1, wherein the tank body is provided with a plurality of support rods arranged around the outside of the MBR membrane module, and the bottom part of the tank body is provided with support legs.