CN214087893U

CN214087893U - ABR type sewage anaerobic reactor

Info

Publication number: CN214087893U
Application number: CN202022737704.0U
Authority: CN
Inventors: 周军党; 卢玉献; 姜平
Original assignee: Wuhan Yujie Environmental Protection Engineering Co ltd
Current assignee: Wuhan Yujie Environmental Protection Engineering Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-31
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to an ABR type sewage anaerobic reactor, which comprises an anaerobic tank, a plurality of baffle plates and a plurality of stirring devices; the anaerobic tank comprises a tank body, a water inlet groove and a water outlet groove, the water inlet groove and the water outlet groove are respectively positioned at the front end and the rear end of the tank body, a plurality of vertical clapboards are arranged in the tank body to divide the tank body into a plurality of reaction zones, anaerobic mud is contained in the bottom of each reaction zone, a V-shaped groove is formed at the lower end of each reaction zone, and a water through hole communicated with the adjacent reaction zones is formed at the upper part of each vertical clapboard; the baffle plates are correspondingly arranged in the reaction area one by one; agitating unit one-to-one installs in the V-arrangement inslot to be used for stirring the sedimentary anaerobism mud of V-arrangement inslot, be formed with the V-arrangement groove at the lower extreme of each reaction zone, let the bottom in anaerobism mud deposit V-arrangement groove more easily, install the agitating unit in the V-arrangement inslot for stir the anaerobism mud of V-arrangement inslot, make the abundant contact of microorganism in sewage and the anaerobism mud, guaranteed the treatment effeciency of sewage.

Description

ABR type sewage anaerobic reactor

Technical Field

The utility model relates to a sewage treatment technical field especially relates to an ABR type sewage anaerobic reactor.

Background

ABR is called anaerobic baffled reactor, is a high-efficiency anaerobic reactor proposed by experts of McCarty and the like in the 80 th 20 th century, and is equivalent to a plurality of UASB reactors operated in series. Flocculent or granular sludge can be formed in each grid chamber of the reactor, sewage flows into the grid chambers and moves up and down in a baffling way along the guide plates to sequentially pass through anaerobic sludge beds in the grid chambers, and organic matters in the wastewater are removed by the reaction contact with microorganisms.

The unique cellular structure and plug-flow state of the reactor enable each reaction chamber to be domesticated and cultured to form a microbial community which is adaptive to the quality and the environmental conditions of sewage flowing into the reaction chamber, macromolecular organic matters are degraded into micromolecular organic matters, organic matters which are difficult to degrade are converted into degradable organic matters, the biodegradability of waste water is improved, the load and the cost of subsequent biodegradation are reduced, and methane generated by anaerobism is collected and comprehensively utilized without generating secondary pollution.

In the prior art, the ABR reactor often causes anaerobic sludge to form deposition at the bottom of each grid chamber due to limitations in engineering manufacturing, and because the flow speed of sewage cannot be too fast in order to ensure the hydraulic retention time of the sewage, the sludge at the bottom of the grid chamber cannot be effectively utilized, a reaction dead zone is caused, and the efficiency of the reactor is low.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide an ABR type anaerobic sewage reactor, which solves the problem of low efficiency of the reactor caused by sludge deposition at the bottom of the reactor in the prior art.

The utility model provides an ABR type sewage anaerobic reactor, which comprises an anaerobic tank, a plurality of baffle plates and a plurality of stirring devices;

the anaerobic tank comprises a tank body, a water inlet tank and a water outlet tank, the water inlet tank and the water outlet tank are respectively positioned at the front end and the rear end of the tank body, a plurality of vertical partition plates are arranged in the tank body to divide the tank body into a plurality of reaction zones, anaerobic mud is contained in the bottom of each reaction zone, a V-shaped groove is formed at the lower end of each reaction zone, and a water through hole communicated with the adjacent reaction zones is formed at the upper part of each vertical partition plate;

the baffle plates are correspondingly arranged in the reaction area one by one;

the stirring devices are arranged in the V-shaped grooves in a one-to-one correspondence mode, and are used for stirring the anaerobic sludge deposited in the V-shaped grooves.

Furthermore, the stirring device comprises a rotating shaft which is rotatably arranged in the corresponding V-shaped groove, a servo motor which is used for driving the rotating shaft to rotate, a rotating drum which is arranged on the rotating shaft, a scraping plate which is connected to the outer surface of the rotating drum and a hard brush which is connected to the outer end of the scraping plate.

Furthermore, the water inlet height of the water passing holes is gradually reduced along the direction from the front end of the tank body to the rear end of the tank body, and the water inlet height of the water outlet groove is lower than the water inlet height of the water passing holes at the rearmost end.

Furthermore, the lower part of each baffle plate bends a certain angle towards the rear end of the tank body.

Furthermore, the water inlet groove and the water outlet groove are both triangular overflow grooves.

Furthermore, the anaerobic tank also comprises a plurality of sealing covers which are arranged corresponding to the reaction zones one by one, a sealing cavity is formed at the lower part of each sealing cover, and a methane outlet is formed on each sealing cover.

Furthermore, a microorganism packing layer is arranged between the baffle plate at the rearmost end and the side wall of the rear end of the tank body.

The utility model provides an ABR type sewage anaerobic reactor is formed with the V-arrangement groove at the lower extreme of each reaction zone, lets the bottom in anaerobism mud deposit V-arrangement groove more easily, installs in the agitating unit of V-arrangement inslot for with the stirring of the anaerobism mud of V-arrangement inslot, make the microorganism in sewage and the anaerobism mud fully contact, guaranteed the treatment effeciency of sewage.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made of preferred embodiments of the present invention.

Drawings

FIG. 1 is a schematic structural diagram of an ABR type sewage anaerobic reactor provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an agitating device according to an embodiment of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

As shown in fig. 1, the embodiment of the application discloses an ABR type sewage anaerobic reactor, which comprises an anaerobic tank 1, a plurality of baffle plates 2 and a plurality of stirring devices 3.

The anaerobic tank 1 comprises a tank body 11, a water inlet groove 12 and a water outlet groove 13, wherein the water inlet groove 12 and the water outlet groove 13 are respectively positioned at the front end and the rear end of the tank body 11, a plurality of vertical partition plates 14 are arranged inside the tank body 11 to divide the tank body 11 into a plurality of reaction areas 11a, each anaerobic mud is contained in the bottom of each reaction area 11a, a V-shaped groove 11b is formed at the lower end of each reaction area 11a, and each water passing hole 14a communicated with the adjacent reaction area is formed in the upper part of each vertical partition plate 14.

In order to ensure that the sewage can fully flow through each reaction zone 11a, the water inlet height of the water through holes 14a is gradually reduced along the direction from the front end of the tank body 11 to the rear end of the tank body 11, and the water inlet height of the water outlet groove 13 is lower than the water inlet height of the water through holes 14a at the rearmost end.

The baffle plates 2 are correspondingly arranged in the reaction area 11 a.

The stirring devices 3 are correspondingly arranged in the V-shaped grooves 11b one by one and used for stirring the anaerobic sludge deposited in the V-shaped grooves 11 b.

Specifically, the stirring device 3 includes a rotating shaft 31 rotatably installed in the corresponding V-shaped groove 11b, a servo motor (not shown in the figure) for driving the rotating shaft 31 to rotate, a rotating drum 32 installed on the rotating shaft 31, a scraper 33 connected to the outer surface of the rotating drum 32, and a rigid brush 34 connected to the outer end of the scraper 33.

When servo motor drive pivot 31 rotated, rotary drum 32 rotated along with pivot 31, and the inside anaerobism mud of V-arrangement groove 11b was stirred to the scraper blade 33 of rotary drum surface, and the stereoplasm brush 34 of scraper blade 33 outer end can effectually be brushed the anaerobism mud on the V-arrangement groove 11b lateral wall, prevents the anaerobism mud at the caking of V-arrangement groove 11b lateral wall, make full use of the anaerobism mud in each reaction zone, prevent the reaction dead zone.

In order to ensure the water distribution uniformity in each reaction zone 11a, the lower part of each baffle plate 2 is bent towards the rear end of the tank body 11 by a certain angle, preferably, the bent angle is 45 degrees.

Preferably, the water inlet tank 12 and the water outlet tank 13 are both triangular overflow tanks, that is, triangular weirs are arranged at the positions of the water inlet and the water outlet to realize uniform water inlet and uniform water outlet of the anaerobic tank.

In order to lead out biogas formed in the sewage treatment process, the anaerobic tank 1 further comprises a plurality of sealing covers 15 which are arranged in one-to-one correspondence with the reaction regions 11a, sealing cavities 15a are formed at the lower parts of the sealing covers 15, a biogas outlet is formed on each sealing cover 15a, and a biogas discharge pipeline extends into the sealing cavities 15a from the biogas outlets to lead out the biogas.

A microorganism packing layer 16 is arranged between the baffle plate 2 at the rearmost end and the side wall of the rear end of the tank body 11, and the microorganism packing layer 16 can effectively improve the microorganism amount in the reactor, reduce the loss of anaerobic sludge and further improve the anaerobic treatment and gas production effects.

When the device is used, sewage to be treated is introduced from a water inlet of the water inlet tank 12 and then flows into the tank body 11, flows up and down in a baffling manner along the baffle plates 2 of each reaction zone 11a, anaerobic sludge deposited at the lower part of the V-shaped groove 11b sequentially reacts with the anaerobic sludge in each reaction zone 11a, then passes through the microbial packing layer 16, the anaerobic sludge is blocked by the microbial packing layer, the treated sewage is discharged through the water outlet tank 13, in the sewage treatment process, the servo motor is electrified to work, the servo motor drives the rotating shaft 31 to rotate, the rotating drum 32 rotates along with the rotating shaft 31, the scraper 33 on the outer surface of the rotating drum stirs the anaerobic sludge in the V-shaped groove 11b, the hard brush 34 at the outer end of the scraper 33 can effectively brush the anaerobic sludge on the side wall of the V-shaped groove 11b to prevent the anaerobic sludge from caking on the side wall of the V-shaped groove 11b, the anaerobic sludge in each reaction zone 11a is fully utilized, the occurrence of reaction dead zones is prevented, so that the microorganisms in the sewage and the anaerobic sludge are fully contacted, and the sewage treatment efficiency is ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. An ABR type sewage anaerobic reactor is characterized by comprising an anaerobic pool, a plurality of baffle plates and a plurality of stirring devices;

the baffle plates are correspondingly arranged in the reaction area one by one;

2. The ABR type sewage anaerobic reactor according to claim 1, wherein the stirring means comprises a rotating shaft rotatably installed in the corresponding V-shaped groove, a servo motor for driving the rotating shaft to rotate, a rotating drum installed on the rotating shaft, a scraper attached to the outer surface of the rotating drum, and a hard brush attached to the outer end of the scraper.

3. The ABR type anaerobic sewage reactor according to claim 1, wherein the water inlet height of the water through holes is gradually reduced along the direction from the front end of the tank body to the rear end of the tank body, and the water inlet height of the water outlet tank is lower than the water inlet height of the water through holes at the rearmost end.

4. An ABR type anaerobic sewage reactor according to claim 1 wherein the lower part of each baffle plate is bent towards the rear end of the tank body by a certain angle.

5. The ABR-type anaerobic sewage reactor according to claim 1, wherein both the inlet tank and the outlet tank are triangular overflow tanks.

6. The ABR type anaerobic sewage reactor according to claim 1, wherein the anaerobic tank further comprises a plurality of sealing covers arranged corresponding to the reaction zones one by one, a sealing cavity is formed at the lower part of the sealing cover, and a biogas outlet is formed on each sealing cover.

7. The ABR-type anaerobic sewage reactor according to claim 1, wherein a microbial packing layer is arranged between the baffle plate at the rearmost end and the rear end side wall of the tank body.