CN214087894U

CN214087894U - Mechanical stirring type UASB reactor

Info

Publication number: CN214087894U
Application number: CN202022737705.5U
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 a mechanical stirring type UASB reactor, which comprises a reaction tank, a stirring device and a three-phase separator; the reaction tank sequentially comprises a water inlet area, a reaction area and a three-phase separation area from bottom to top; the stirring device is arranged in the water inlet area, anaerobic sludge is contained in the reaction area and forms a sludge layer, and the three-phase separator is arranged in the three-phase separation area; agitating unit includes the inlet tube and installs a plurality of flabellums on the inlet tube, the rotatable installation in the lateral wall of reaction tank in both ends of inlet tube, the one end opening and the other end of inlet tube seal, the flabellum is hollow structure and sets up with the inside intercommunication of inlet tube, the lateral wall of flabellum is formed with the delivery port that is linked together with the inside of flabellum, all delivery ports are located same one side of the flabellum that corresponds, the UASB reactor of this application makes waste water and mud fully contact, the intensive mixing of waste water and anaerobism mud has been realized, make the microorganism among the mud fully decompose the organic matter in the waste water, the purification efficiency of waste water is greatly improved.

Description

Mechanical stirring type UASB reactor

Technical Field

The utility model relates to a sludge treatment technical field especially relates to a UASB reactor of mechanical stirring formula.

Background

The UASB reactor (upflow anaerobic sludge blanket reactor) is composed of a water inlet area, a sludge reaction area and a three-phase separation area, a large amount of anaerobic sludge is reserved in the sludge reaction area, sludge with good settling property and coagulation property forms a sludge layer at the lower part, sewage to be treated is introduced into the sludge layer from a water inlet pipe of the water inlet area and is mixed and contacted with the sludge, organic matters in the sewage are decomposed by microorganisms in the sludge and are converted into methane, the methane is continuously discharged in the form of micro bubbles, the micro bubbles are continuously merged in the ascending process to gradually form larger bubbles, a sludge-water mixture with thinner sludge concentration is formed at the upper part of the sludge layer due to the stirring of the methane, the sludge-water mixture doped with methane bubbles rises together and enters a three-phase separator, the methane enters a gas collection chamber after being collected by a gas collection cover of the three-phase separator, a guide pipe is arranged above the gas collection chamber, the biogas in the gas collecting chamber is discharged through the guide pipe, the mud-water mixture enters the settling zone through a gap between the gas collecting hood and the gas baffle plate to carry out mud-water separation, the supernatant is discharged from the water outlet pipe at the top, and the settled sludge returns to the reaction zone under the action of gravity.

In the prior art, the main problems of the UASB reactor in the design process are three points: the water distribution uniformity is the effect that the large channel is the full mixing of the sludge at the bottom of the reaction tank and the purified water under the condition of stable water inflow, the pulse type water distributor in the prior art has the defects that a water distribution pipeline is complicated, the flowing performance of the sludge is insufficient when the sludge is in contact with the wastewater, the sludge and the wastewater cannot be in full contact, and organic matters in the wastewater cannot be effectively decomposed, so that the organic load capacity of a UASB reactor is poor, and the purification efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a mechanical agitation type UASB reactor, which is used to solve the technical problems of the prior art that the water distribution pipeline is complicated, and the sludge and the wastewater cannot be sufficiently contacted and purified, and the purification efficiency is poor.

The utility model provides a mechanical stirring type UASB reactor, which comprises a reaction tank, a stirring device and a three-phase separator; the reaction tank sequentially comprises a water inlet area, a reaction area and a three-phase separation area from bottom to top; the stirring device is arranged in the water inlet area, anaerobic sludge is contained in the reaction area and forms a sludge layer, and the three-phase separator is arranged in the three-phase separation area; agitating unit include the inlet tube with install in a plurality of flabellums on the inlet tube, rotatable install in the both ends of inlet tube in the lateral wall of reaction tank, the one end opening and the other end of inlet tube seal, the flabellum be hollow structure and with the inside intercommunication setting of inlet tube, the lateral wall of flabellum be formed with the delivery port that the inside of flabellum is linked together, all delivery ports are located correspondingly same one side of flabellum.

Furthermore, waterproof bearings are sleeved at two ends of the water inlet pipe, and the outer side walls of the waterproof bearings are fixedly installed on the reaction tank.

Further, the triphase separator comprises a plurality of air seals and baffles, an air collection chamber is formed at the upper end of each baffle, and an overflow channel is formed between each air seal and each baffle.

Furthermore, an overflow groove is formed in the upper portion of the reaction tank, and the overflow groove is communicated with the overflow channel.

The application provides a UASB reactor gets into the inlet tube when waste water from the tip of inlet tube and makes, from the delivery port blowout of flabellum side, because the rotatable installation in the lateral wall of reaction tank in both ends of inlet tube, under the recoil effect of rivers, it is rotatory to drive the inlet tube, and the flabellum stirs bottom mud, makes waste water and mud fully contact, has realized the intensive mixing of waste water and anaerobism mud, makes the microorganism in the mud fully decompose the organic matter in the waste water, has improved the purification efficiency of waste water greatly.

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 a mechanically-stirred UASB reactor according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of an X region in the soil 1.

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 figure 1, the utility model provides a mechanical stirring formula UASB reactor, including reaction tank 1, agitating unit 2 and three-phase separator 3.

The reaction tank 1 sequentially comprises a water inlet area 1a, a reaction area 1b and a three-phase separation area 1c from bottom to top; the stirring device 2 is arranged in the water inlet area 1a, the reaction area 1b is filled with anaerobic sludge and forms a sludge layer 11, and the three-phase separator 3 is arranged in the three-phase separation area 1 c.

In the embodiment of this application, as shown in fig. 2, agitating unit 2 includes inlet tube 21 and install in a plurality of flabellum 22 on the inlet tube 21, rotatable the installing in both ends of inlet tube 21 on the lateral wall of reaction tank 1, the one end opening and the other end of inlet tube 21 are sealed, flabellum 22 be hollow structure and with the inside intercommunication setting of inlet tube 21, the lateral wall of flabellum 22 be formed with the delivery port 221 that the inside of flabellum 22 is linked together, all delivery ports 221 are located corresponding the same one side of flabellum 22.

In order to ensure that the inlet pipe 21 can be driven to rotate when the wastewater flows out of the outlet 221, the number of the fan blades 22 is enough, and the bottom space of the reaction tank 1 is occupied as much as possible.

Furthermore, waterproof bearings 23 are sleeved at two ends of the water inlet pipe 21, and the outer side walls of the waterproof bearings 23 are fixedly installed on the reaction tank 1.

It will be appreciated that the necessary sealing connection between the waste water pipe and the inlet pipe 21 is also used during waste water transport to ensure that no water leaks during waste water transport.

In the embodiment of the present application, the three-phase separator 3 includes a plurality of air seals 31 and a baffle 32, an upper end of the baffle 32 forms a plenum, and an overflow passage 3a is formed between the air seals 31 and the baffle 32.

Preferably, an overflow tank 4 is arranged at the upper part of the reaction tank 1, and the overflow tank 4 is communicated with the overflow channel 3 a.

When the UASB reactor provided in the embodiment of the present application is used, referring to fig. 1 and fig. 2, firstly, wastewater is introduced into the water inlet pipe 21 from the end of the water inlet pipe 21 through the wastewater delivery pipeline, the wastewater flows inside the water inlet pipe 21 and enters the cavity inside the fan blade 22, and then is ejected from the water outlet 221 on the side surface of the fan blade 22, because the two ends of the water inlet pipe 21 are rotatably mounted on the side wall of the reaction tank 1, the fan blade 22 drives the water inlet pipe 21 to rotate under the recoil action of water flow, the fan blade 22 stirs the bottom sludge, so that the wastewater and the sludge are fully contacted, the microorganisms in the sludge fully decompose the organic matters in the wastewater and convert the organic matters into biogas, the biogas is continuously discharged in the form of micro bubbles, the micro bubbles are continuously combined in the ascending process, larger bubbles are gradually formed, and a sludge-water mixture with a thinner sludge concentration is formed at the upper part of the sludge layer due to the stirring of the biogas, the sludge-water mixture doped with the methane bubbles rises together and enters the three-phase separator 3, the methane is collected by a gas collection chamber of the three-phase separator 3 and is discharged through a preset conduit, the sludge-water mixture is subjected to sludge-water separation through a gap between the baffles 32, the supernatant is discharged from an overflow channel 3a at the top, and the precipitated sludge is settled back to the reaction zone 1b under the action of gravity.

The UASB reactor of this application makes waste water and mud fully contact, has realized the intensive mixing of waste water and anaerobism mud, makes the microorganism in the mud fully decompose the organic matter in the waste water, has improved the purification efficiency of waste water greatly.

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. A mechanical stirring type UASB reactor is characterized by comprising a reaction tank, a stirring device and a three-phase separator; the reaction tank sequentially comprises a water inlet area, a reaction area and a three-phase separation area from bottom to top; the stirring device is arranged in the water inlet area, anaerobic sludge is contained in the reaction area and forms a sludge layer, and the three-phase separator is arranged in the three-phase separation area; agitating unit include the inlet tube with install in a plurality of flabellums on the inlet tube, rotatable install in the both ends of inlet tube in the lateral wall of reaction tank, the one end opening and the other end of inlet tube seal, the flabellum be hollow structure and with the inside intercommunication setting of inlet tube, the lateral wall of flabellum be formed with the delivery port that the inside of flabellum is linked together, all delivery ports are located correspondingly same one side of flabellum.

2. The mechanically-stirred UASB reactor as claimed in claim 1, wherein waterproof bearings are sleeved at both ends of the water inlet pipe, and the outer side wall of the waterproof bearing is fixedly installed with the reaction tank.

3. A mechanically agitated UASB reactor according to claim 2 in which the triphase separator comprises a plurality of gas seals and baffles, the upper ends of which form a collection chamber and overflow channels are formed between the gas seals and the baffles.

4. A mechanically agitated UASB reactor according to claim 3 in which an overflow tank is provided in the upper part of the reaction tank, the overflow tank being in communication with the overflow passage.