CN219489732U

CN219489732U - Anaerobic loop reactor

Info

Publication number: CN219489732U
Application number: CN202320599500.6U
Authority: CN
Inventors: 李才贵; 肖金超; 戈守红; 何敏
Original assignee: Peiyuan Ecological Environmental Technology Chongqing Co ltd
Current assignee: Peiyuan Ecological Environmental Technology Chongqing Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-08-08
Anticipated expiration: 2033-03-23

Abstract

The utility model discloses an anaerobic loop reactor. The anaerobic loop reactor comprises a water inlet pipe, a reaction tank, a central flow guide pipe, a water distribution pipe, a propeller, a three-phase separator, an overflow weir and a water outlet pipe, wherein the upper end of the central flow guide pipe is closed, the upper end of the central flow guide pipe is provided with an exhaust pipe, the water inlet pipe is connected with the central flow guide pipe, the water distribution pipe is connected with the water outlet end of the central flow guide pipe, the water distribution pipe is provided with a water outlet, the water outlet faces the bottom of the reaction tank, the three-phase separator is arranged in the reaction tank, the three-phase separator is connected with the central flow guide pipe through a gas-liquid collecting pipe, the water inlet pipe is positioned between the gas-liquid collecting pipe and the water distribution pipe, the propeller is arranged in the central flow guide pipe and used for pushing sewage in the central flow guide pipe to flow to the water distribution pipe rapidly, the overflow weir is arranged on the inner wall of the reaction tank, and the water outlet pipe is arranged on the overflow weir and is used for discharging sewage in the overflow weir. The anaerobic loop reactor can uniformly stir muddy water, and improves the treatment efficiency.

Description

Anaerobic loop reactor

Technical Field

The utility model relates to the technical field of anaerobic treatment of sewage/wastewater, in particular to an anaerobic loop reactor.

Background

In the conventional sewage treatment equipment, sewage directly flows upwards after entering through the water inlet pipe, a certain dead zone is formed at the bottom of the reaction tank, the sewage cannot be stirred and mixed with suspended particles, meanwhile, the mixing time of the sewage and the sludge is shortened, and the operation efficiency is reduced.

Disclosure of Invention

The utility model aims to provide an anaerobic loop reactor capable of fully stirring and prolonging the mixing time of sewage and sludge.

In order to solve the problems, the utility model provides an anaerobic loop reactor, which comprises a water inlet pipe, a reaction tank, a central guide pipe, a water distribution pipe, a propeller, a three-phase separator, an overflow weir and a water outlet pipe, wherein the upper end of the central guide pipe is closed, the upper end of the central guide pipe is provided with an exhaust pipe, the water inlet pipe is connected with the central guide pipe, the water distribution pipe is connected with the water outlet end of the central guide pipe, the water distribution pipe is provided with a water outlet, the water outlet faces the bottom of the reaction tank, the three-phase separator is arranged in the reaction tank, the three-phase separator is connected with the central guide pipe through a gas-liquid collecting pipe, the water inlet pipe is positioned between the gas-liquid collecting pipe and the water distribution pipe, the propeller is arranged in the central guide pipe, the propeller is used for pushing sewage in the central guide pipe to quickly flow to the water distribution pipe, the overflow weir is arranged on the inner wall of the reaction tank, the water outlet pipe is arranged on the overflow weir, and the water outlet pipe is used for discharging sewage in the overflow weir.

Further, a diffusion plate is arranged at the bottom of the reaction tank and is positioned right below the water distribution pipe with the water outlet.

Further, the upper end of the central flow guide pipe is sealed through a quick-release sealing cover.

Further, the outlet pipe has a U-shaped curved section.

Further, an anti-siphon pipe is arranged on the water outlet pipe, a port at the upper end of the anti-siphon pipe is higher than the overflow weir, and the anti-siphon pipe is positioned behind the U-shaped bending section.

Further, a mud discharging pipe is arranged at the bottom of the reaction tank.

Further, the distance between the water distribution pipe and the bottom of the tank is 200-300 mm.

Further, the propeller is mounted on a coupling device or a lifting device.

Furthermore, anaerobic biological suspension filler is arranged between the three-phase separator and the water inlet distributor.

The anaerobic loop reactor provided by the utility model has the advantages that the water outlet of the water distribution pipe faces the bottom of the reaction tank, sewage from the water distribution pipe can impact the bottom of the reaction tank, the dead zone of the bottom of the reaction tank is eliminated, a better muddy water mixing effect is obtained, the contact between sewage and microorganisms is enhanced, the treatment efficiency is improved, meanwhile, the sewage needs to be downward and upward, the mixing contact time of the sewage and the sludge is prolonged, and the treatment efficiency is further improved.

Drawings

FIG. 1 is a schematic diagram of the structure of a preferred embodiment of the anaerobic loop reactor of the present utility model.

The meaning of the reference numerals in the drawings are:

the device comprises a water inlet pipe 1, a reaction tank 2, a mud discharge pipe 21, a scattering plate 22, a central guide pipe 3, an exhaust pipe 31, a sealing cover 32, a water distribution pipe 4, a propeller 5, a three-phase separator 6, an overflow weir 7, a water outlet pipe 8, an anti-siphon pipe 81 and a gas-liquid collecting pipe 9.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in FIG. 1, the preferred embodiment of the anaerobic loop reactor of the present utility model comprises a water inlet pipe 1, a reaction tank 2, a central draft pipe 3, a water distribution pipe 4, a propeller 5, a three-phase separator 6, an overflow weir 7 and a water outlet pipe 8. The bottom of the reaction tank 2 is provided with a sludge discharge pipe 21 for discharging sludge according to requirements. The water inlet pipe 1 passes through the reaction tank 2 and is connected with the central flow guide pipe 3, the water inlet pipe 1 is connected with the central flow guide pipe 3, the water distribution pipe 4 is connected with the water outlet end of the central flow guide pipe 3, and sewage in the central flow guide pipe 3 is discharged into the reaction tank 2 through the water distribution pipe 4. The three-phase separator 6 is arranged in the reaction tank 2, the three-phase separator 6 is used for separating out sludge and water-gas mixture, the sludge is precipitated to the bottom of the tank, the three-phase separator 6 is connected with the central flow guide pipe 3 through a gas-liquid collecting pipe 9, the water-gas mixture enters the gravity center flow guide pipe through the gas-liquid collecting pipe 9, the water-gas mixture is separated in the central flow guide pipe 3, namely methane flows upwards along the central flow guide pipe 3, and sewage flows downwards along the central flow guide pipe 3. The upper end of the central flow guide pipe 3 is closed, the upper end of the central flow guide pipe 3 is provided with an exhaust pipe 31, biogas is conveniently discharged through the exhaust pipe 31, the upper end of the central flow guide pipe 3 is sealed through a quick-dismantling sealing cover 32, and the sealing cover 32 is conveniently and quickly disassembled. The water inlet pipe 1 is positioned between the gas-liquid collecting pipe 9 and the water distribution pipe 4, the propeller 5 is arranged in the central guide pipe 3, and the propeller 5 is used for pushing sewage in the central guide pipe 3 to quickly flow to the water distribution pipe 4, namely providing a pressure for the sewage in the central guide pipe 3; the propeller 5 is arranged on a coupling device or a lifting device, so that the propeller 5 can be conveniently moved, and the propeller 5 can be overhauled by opening the sealing cover 32. The overflow weir 7 is arranged on the inner wall of the reaction tank 2, the water outlet pipe 8 is arranged on the overflow weir 7, and the water outlet pipe 8 is used for discharging sewage in the overflow weir 7. In other embodiments, anaerobic biological suspended packing can be arranged between the three-phase separator 6 and the water inlet distributor, so as to ensure the running stability and increase the treatment effect.

The outlet pipe 8 has a U-shaped bent section, which can prevent the outside air from entering the reaction tank 2. The anti-siphon pipe 81 is arranged on the water outlet pipe 8, a port at the upper end of the anti-siphon pipe 81 is higher than the overflow weir 7, and the anti-siphon pipe 81 is positioned behind the U-shaped bending section; when the water outlet pipe 8 is connected with a downward pipeline, that is, sewage flows downwards after exiting from the water outlet pipe 8, the water outlet pipe 8 is easy to generate a siphon phenomenon, and the siphon preventing pipe 81 is communicated with the outside, so that the siphon phenomenon can be eliminated, and methane is prevented from being discharged through the water outlet pipe 8.

The water distribution pipe 4 is provided with a water outlet, the water outlet faces the bottom of the reaction tank 2, so that the water outlet is convenient to impact the bottom of the sewage tank, the distance between the water distribution pipe 4 and the bottom of the tank is 200-300 mm, the sludge at the bottom of the reaction tank 2 can be effectively stirred, and meanwhile, the water outlet can be effectively prevented from being blocked by the sludge. The bottom of the reaction tank 2 is provided with a diffusion plate 22, and the diffusion plate 22 is positioned right below the water distribution pipe 4 with a water outlet, so that the diffusion effect is enhanced, and the stirring effect is improved.

The sewage enters the central flow guide pipe 3 from the water inlet pipe 1, is discharged through the water distribution pipe 4, is mixed with sludge, then rises and is separated through the three-phase separator 6, the water-gas mixture enters the central flow guide pipe 3, methane is discharged from the exhaust pipe 31, the sewage is pushed to the central flow guide pipe 3 by the propeller 5 to be discharged and mixed with the sewage entering from the water inlet pipe 1, and the propeller 5 can provide pressure for the sewage, so that the sewage sprayed from the water outlet of the water distribution pipe 4 has certain pressure, the larger the power of the propeller 5 is, the larger the pressure sprayed from the sewage is, the larger the force impacting the bottom of the pool is, and the better the mixing effect of the sewage and the sludge is.

The water outlet of the water distribution pipe 4 faces the bottom of the reaction tank 2, sewage from the water distribution pipe 4 can impact the bottom of the reaction tank 2, so that dead zone of the bottom of the reaction tank 2 is eliminated, better muddy water mixing effect is obtained, contact between sewage and microorganisms is enhanced, treatment efficiency is improved, meanwhile, sewage needs to be downward and upward, mixing contact time of sewage and sludge is prolonged, and treatment efficiency is further improved.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures made by the description of the utility model and the accompanying drawings are directly or indirectly applied to other related technical fields, which are all within the scope of the utility model.

Claims

1. An anaerobic loop reactor, characterized by: the three-phase separator is arranged in the reaction tank, the three-phase separator is connected with the central guide pipe through a gas-liquid collecting pipe, the water inlet pipe is arranged between the gas-liquid collecting pipe and the water distribution pipe, the propeller is arranged in the central guide pipe and is used for pushing sewage in the central guide pipe to flow to the water distribution pipe rapidly, the overflow weir is arranged on the inner wall of the reaction tank, the water outlet pipe is arranged on the overflow weir and is used for discharging sewage in the overflow weir.

2. Anaerobic loop reactor according to claim 1, characterized in that: the bottom of the reaction tank is provided with a diffusion plate, and the diffusion plate is positioned right below the water distribution pipe with a water outlet.

3. Anaerobic loop reactor according to claim 1, characterized in that: the upper end of the central flow guide pipe is sealed by a quick-dismantling sealing cover.

4. Anaerobic loop reactor according to claim 1, characterized in that: the outlet pipe has a U-shaped curved section.

5. Anaerobic loop reactor according to claim 4, characterized in that: the anti-siphon pipe is arranged on the water outlet pipe, a port at the upper end of the anti-siphon pipe is higher than the overflow weir, and the anti-siphon pipe is positioned behind the U-shaped bending section.

6. Anaerobic loop reactor according to claim 1, characterized in that: the bottom of the reaction tank is provided with a mud discharging pipe.

7. Anaerobic loop reactor according to claim 1, characterized in that: the distance between the water distribution pipe and the bottom of the tank is 200-300 mm.

8. Anaerobic loop reactor according to claim 1, characterized in that: the propeller is mounted on a coupling device or a lifting device.

9. Anaerobic loop reactor according to claim 1, characterized in that: anaerobic biological suspension filler is arranged between the three-phase separator and the water inlet distributor.