CN210313698U

CN210313698U - Anaerobic reactor

Info

Publication number: CN210313698U
Application number: CN201921296401.0U
Authority: CN
Inventors: 侯晓智; 赵立芬; 熊远远
Original assignee: Shanghai Pangke Environmental Technology Co Ltd
Current assignee: Shanghai Pangke Environmental Technology Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-04-14
Anticipated expiration: 2029-08-09

Abstract

The utility model provides an anaerobic reactor, which comprises a tank body, a three-phase separator, a water distributor and a sludge return pipe, wherein the three-phase separator is positioned in the center of the top of the tank body, and the water distributor is positioned in the center of the bottom of the tank body; a biogas outlet is arranged above the top of the tank body, and the gas phase separated from the three-phase separator is discharged from the biogas outlet; the three-phase separator is provided with a water outlet overflow groove, the water outlet overflow groove is communicated with the water outlet of the tank body through a water outlet pipe, and the water distributor is communicated with the water inlet of the tank body through a water inlet pipe; the bottom of the three-phase separator is provided with a sludge outlet which is directly communicated to the water inlet pipe or the water distributor through a sludge return pipe. The utility model discloses a mud back flow is direct to be used in the solid phase (anaerobism mud) backward flow to the water-locator that the separation obtained, has that anti load capacity is strong, efficient, the advantage of being difficult for running mud.

Description

Anaerobic reactor

Technical Field

The utility model belongs to the technical field of waste water treatment, concretely relates to can be directly with the solid phase (anaerobism mud) direct reflux anaerobic reactor who obtains of separation use.

Background

An anaerobic reactor for treating the high-concentration organic sewage features that the anaerobic granular sludge technique is fully used to provide a full upward flow speed to the reactor by internal (external) circulation, so maintaining the expansion of granular sludge bed and the mixing in the reactor.

With the improvement of the requirements of wastewater treatment projects on treatment cost, floor area saving, operation stability and the like, at present, conventional wastewater anaerobic treatment equipment selects either granular sludge or flocculent sludge for inoculation operation, and has the defects of easy sludge leakage, small impact load resistance and high maintenance cost in the sludge switching process in the using process.

SUMMERY OF THE UTILITY MODEL

To the defect of prior art, the utility model provides an anaerobic reactor, through the direct solid phase (anaerobism mud) that will separate the acquisition of mud back flow to the water-locator in use, have the advantage that anti load capacity is strong, efficient, be difficult for running mud.

The utility model discloses a concrete technical scheme as follows:

an anaerobic reactor comprises a tank body, a three-phase separator, a water distributor and a sludge return pipe, wherein the three-phase separator is positioned in the center of the top of the tank body, and the water distributor is positioned in the center of the bottom of the tank body;

a biogas outlet is arranged above the top of the tank body, and the gas phase separated from the three-phase separator is discharged from the biogas outlet; the three-phase separator is provided with a water outlet overflow groove, the water outlet overflow groove is communicated with the water outlet of the tank body through a water outlet pipe, and the water distributor is communicated with the water inlet of the tank body through a water inlet pipe; the bottom of the three-phase separator is provided with a sludge outlet which is directly communicated to the water inlet pipe or the water distributor through a sludge return pipe.

The above technical scheme of the utility model, waste water mixed liquid is through the separation back of three-phase separator, gaseous phase is discharged through the marsh gas export at jar body top, collect, liquid phase flows in to the play water overflow launder, discharge through the outlet pipe, the solid phase passes through mud export and the direct backward flow of mud back flow to inlet tube or water-locator, this mud backward flow process is compared in traditional gravity and is deposited, backward flow that can be quick participates in the processing procedure to the water-locator, be favorable to anaerobic sludge's high efficiency to use, the interior mud concentration of jar has been guaranteed.

According to another embodiment of the present invention, the tank is provided with a water seal at the biogas outlet, wherein the rear end of the water seal can be further connected with a biogas processing unit.

According to the utility model discloses a another kind of embodiment further includes feed pump, sludge pump, and the feed pump setting is on the inlet tube and be located jar body outside, and the sludge pump setting is on the mud back flow and be located jar body outside.

According to another concrete implementation mode of the utility model, the jar body is the steel ordinary pressure jar body, and the diameter of the jar body is 2-26m, and the vertical height of the jar body is 16-28m, and wherein the jar body can be arranged according to the scene, has strong adaptability's advantage.

According to another embodiment of the utility model, the water distributor is in a frustum shape with a small upper end and a large lower end.

According to the utility model discloses a another kind of embodiment still includes the sampler, and the sampler includes a plurality of sampling tubes that set up along the direction of height layering of the jar body, and the one end mouth of pipe of a plurality of sampling tubes sets up to stretching out outside the jar body, and all is provided with the valve on each sampling tube, wherein takes a sample through opening the valve to in time feed back the operation index on each height layer of anaerobic reactor.

According to the utility model discloses a another kind of embodiment, the three-phase separator is binary channels three-phase separator, and it includes the separating chamber, is located two degasification rooms of separating chamber both sides and is located the precipitation chamber of separating chamber and degasification room below, and wherein the play water overflow launder is located the separating chamber, and the precipitation chamber communicates separating chamber and two degasification rooms respectively, and the sludge outlet is located the bottom of precipitation chamber.

Furthermore, the separation chamber and the two degassing chambers are integrally prefabricated and formed by adopting PP or HDPE materials, and belong to an integrated combined device, and the three-phase separator is fixed on a supporting beam in the tank body in a bolt connection mode.

Preferably, the settling chamber is arranged in a V-shaped shape with the gradually reduced cross section from top to bottom, and a flushing port is arranged on the outer side of the settling chamber and above the sludge outlet.

Still preferably, the middle part of the settling chamber is provided with a purging port above the sludge outlet, wherein the purging port is preferably a nitrogen purging port.

The utility model discloses possess following beneficial effect:

1. the planar arrangement occupies small land, the volume load is high, the reactor is straight through 2-26 meters, and the height is vertically upward 16-28 meters;

2. the double-channel three-phase separator has good solid, liquid and gas three-phase separation capacity, and greatly improves the impact load resistance

3. The application range is wide, the reactor can adopt granular sludge and flocculent sludge for inoculation operation, and the reactor is suitable for organic wastes with high COD, high SS and high conductivity;

4. the solid phase (anaerobic sludge) separated by the two-channel three-phase separator directly circulates to the water distributor through the return pipe for use, and compared with the traditional gravity precipitation mode, the anaerobic sludge fully stirs in the water distributor, avoids dead zones formed at the bottom on the one hand, and also improves the uniform degree of mixing on the other hand, thereby being beneficial to the high-efficiency use of sludge.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of the anaerobic reactor of the present invention.

Detailed Description

As shown in figure 1, the anaerobic reactor comprises a tank body 1, a two-channel three-phase separator 2, a water distributor 3 and a sludge return pipe 4.

The tank body 1 is a steel normal-pressure tank body 1, and a water inlet 11, a water outlet 12 and a methane outlet 13 are arranged on the tank body 1;

the two-channel three-phase separator 2 is fixed on a support beam in the center of the top of the tank 1, for example, by means of bolting, and comprises a separation chamber 21, two degassing chambers 22 located on both sides of the separation chamber 21, and a settling chamber 23 located below the separation chamber 21 and the degassing chambers 22;

wherein, the separation chamber 21 is provided with a water outlet overflow groove 24, the bottom of the sedimentation chamber 23 is provided with a sludge outlet 25, and the water outlet overflow groove 24 is communicated with the water outlet 12 of the tank body 1 through a water outlet pipe 14; the sludge outlet 25 is directly connected to the water inlet pipe 15 through the sludge return pipe 4.

After the wastewater mixed liquor is separated by the two-channel three-phase separator 2, the gas phase is discharged to the top of the tank body 1, and is discharged out of the tank body 1 from the methane outlet 13 through the water seal 6, the liquid phase flows into the water outlet overflow groove 24 and is discharged through the water outlet pipe 14, and the solid phase directly flows back to the water inlet pipe 15 through the sludge outlet 25 and the sludge return pipe 4 for recycling.

Specifically, the settling chamber 23 is provided with a V-shaped shape with the gradually-reduced cross section from top to bottom, and a flushing port 26 is arranged on the outer side of the settling chamber 23 to avoid the blocking phenomenon.

Further, a nitrogen purge port 27 may be provided in the middle of the settling chamber 23 above the sludge outlet 25.

The water distributor 3 is positioned in the center of the bottom of the tank body 1, the water distributor 3 is in a frustum shape with a small upper end and a large lower end, wherein the water distributor 3 can be formed by welding metal or plastic materials according to the size of the tank body 1, the upper part of the water distributor 3 is communicated with the water inlet 11 of the tank body 1 through a water inlet pipe 15, and the bottom is connected with the bottom of the tank body 1 in a bolt connection or welding mode.

The utility model discloses in be equipped with feed pump 16, circulating pump 17 in the outside bottom of jar body 1, feed pump 16 establishes on inlet tube 15, and circulating pump 17 establishes on sludge return pipe 4.

In order to feed back the operating conditions of each height layer inside the anaerobic reactor in time, sampler 5 has still been set up to this embodiment, and wherein sampler 5 includes a plurality of sampling tubes along the direction of height layering setting of the jar body 1, and the one end mouth of pipe of a plurality of sampling tubes sets up to stretch out outside jar body 1 to set up the valve on the sampling tube, carry out the sample process through opening the valve.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention shall be covered by the scope of the invention.

Claims

1. An anaerobic reactor, comprising:

a biogas outlet is arranged above the top of the tank body;

the three-phase separator is positioned in the center of the top of the tank body;

the water distributor is positioned in the center of the bottom of the tank body;

a sludge return pipe;

the three-phase separator is provided with a water outlet overflow trough, the water outlet overflow trough is communicated with a water outlet of the tank body through a water outlet pipe, and the water distributor is communicated with a water inlet of the tank body through a water inlet pipe;

the bottom of the three-phase separator is provided with a sludge outlet which is directly communicated to the water inlet pipe or the water distributor through the sludge return pipe.

2. An anaerobic reactor according to claim 1, wherein the tank is provided with a water seal at the biogas outlet.

3. An anaerobic reactor according to claim 1, further comprising a feed pump, a sludge pump, the feed pump being located on the inlet conduit and outside the tank, the sludge pump being located on the sludge return conduit and outside the tank.

4. An anaerobic reactor according to claim 1, wherein the tank is a steel atmospheric tank, the tank having a diameter of 2 to 26m and a vertical height of 16 to 28 m.

5. An anaerobic reactor according to claim 1, wherein the water distributor is in the form of a frustum with a small upper end and a large lower end.

6. An anaerobic reactor according to any one of claims 1 to 5, further comprising a sampler comprising a plurality of sampling tubes arranged in layers along the height of the tank, wherein one end of each of the plurality of sampling tubes is arranged to extend out of the tank, and each of the plurality of sampling tubes is provided with a valve.

7. An anaerobic reactor according to any one of claims 1 to 5, wherein the three-phase separator is a two-pass three-phase separator comprising a separation chamber, two degassing chambers located on either side of the separation chamber, and a settling chamber located below the separation chamber and the degassing chambers, wherein the overflow outlet is located in the separation chamber, the settling chamber communicates with the separation chamber and the two degassing chambers, respectively, and the sludge outlet is located at the bottom of the settling chamber.

8. An anaerobic reactor according to claim 7, wherein the settling chamber is arranged in a V-shape with a gradually decreasing cross section from top to bottom, and a flushing port is arranged outside the settling chamber above the sludge outlet.

9. An anaerobic reactor according to claim 7, wherein a purge port is provided in the middle of the settling chamber above the sludge outlet.

10. An anaerobic reactor according to claim 7, wherein the separation chamber, the two degassing chambers are integrally pre-formed from PP or HDPE.