CN216946412U - High-efficient inner loop IC anaerobic reactor - Google Patents
High-efficient inner loop IC anaerobic reactor Download PDFInfo
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- CN216946412U CN216946412U CN202123048004.1U CN202123048004U CN216946412U CN 216946412 U CN216946412 U CN 216946412U CN 202123048004 U CN202123048004 U CN 202123048004U CN 216946412 U CN216946412 U CN 216946412U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The utility model provides a high-efficiency internal circulation IC anaerobic reactor, belonging to the technical field of anaerobic sewage treatment. The methane circulating and conveying device comprises a reaction tank body, a gas-liquid separation tank body and a methane circulating and conveying unit, wherein a lower reaction zone and an upper reaction zone are arranged in the reaction tank body, a lower three-phase separator and an upper three-phase separator are respectively arranged on the upper portions of the lower reaction zone and the upper reaction zone, the gas-liquid separation tank body is arranged at the top of the reaction tank body, a first-stage lifting pipe and a second-stage lifting pipe are respectively connected to the lower portion and the upper portion of the gas-liquid separation tank body, the lower ends of the first-stage lifting pipe and the second-stage lifting pipe are respectively connected with the lower three-phase separator and the upper three-phase separator, an internal circulating liquid return pipe is arranged at the bottom of the gas-liquid separation tank body and extends to the bottom of the lower reaction zone, and a gas outlet is arranged at the upper portion of the gas-liquid separation tank body. The anaerobic activated sludge water distributor has a simple structure, improves the internal circulation efficiency, ensures the stability and continuity of the internal circulation amount, and avoids the accumulation and hardening of anaerobic activated sludge in a water distribution area.
Description
Technical Field
The utility model provides a high-efficiency internal circulation IC anaerobic reactor, belonging to the technical field of anaerobic sewage treatment.
Background
The IC anaerobic reactor is a new generation of high-efficiency anaerobic reactor, namely an internal circulation anaerobic reactor, and is formed by connecting two layers of UASB reactors in series. The structure of the reactor mainly comprises an upper reaction chamber and a lower reaction chamber. The waste water flows from bottom to top in the reactor, the pollutants are adsorbed and degraded by bacteria, and the purified water flows out from the upper part of the reactor.
The IC anaerobic reactor comprises an upper reaction chamber and a lower reaction chamber, wherein the lower reaction chamber is a first reaction chamber, and the upper reaction chamber is a second reaction chamber; wherein, each is provided with a set of three-phase separator which is a first reaction chamber three-phase separator and a second reaction chamber three-phase separator.
In the internal circulation process of the IC reactor, sewage is wrapped to form mixed liquid, the mixed liquid is lifted to a gas-liquid separator through an ascending pipe to realize the separation of methane and sewage, and the separated sewage is circulated to a water distribution area of the reactor through a descending pipe. Usually, the internal circulation process can strengthen the flow state of sewage in the system and increase the contact between the sewage and sludge in the system, but at the initial stage of starting the anaerobic reactor or when the anaerobic reactor is used for treating difficultly degraded wastewater, such as landfill leachate treatment, the gas yield of the system is low, the internal circulation of the system is reduced, the internal circulation of the system is unstable or discontinuous, the anaerobic removal effect is influenced, meanwhile, the hydraulic circulation in the reactor is also influenced, so that anaerobic activated sludge is hardened and accumulated in a water distribution area, the water distribution effect of the reactor is further influenced, and finally the system is failed to start or is stopped; meanwhile, the IC reactor can generate biogas in the operation process, and the biogas enters a gas-liquid separation tank for gas-liquid separation through a pipeline after being separated by the first reaction chamber three-phase separator and the second reaction chamber three-phase separator. Because the three-phase separator is completely immersed in water, the water quantity can be carried in the methane; particularly, the water pressure above the three-phase separator of the first reaction chamber is very high, so that the water quantity carried in the methane generated by the first reaction chamber is large, and the water quantity carried in the outlet methane is too large, which can influence the normal operation of a methane utilization or combustion system.
SUMMERY OF THE UTILITY MODEL
The efficient internal circulation IC anaerobic reactor provided by the utility model has a simple structure, improves the internal circulation efficiency, ensures the stability and continuity of the internal circulation amount, and avoids the accumulation and hardening of anaerobic activated sludge in a water distribution area.
The utility model provides a high-efficiency internal circulation IC anaerobic reactor, which comprises a reaction tank body, a gas-liquid separation tank body and a biogas circulating conveying unit, wherein a lower reaction zone and an upper reaction zone are arranged in the reaction tank body, the upper parts of the lower reaction zone and the upper reaction zone are respectively provided with a lower three-phase separator and an upper three-phase separator, the top of the reaction tank body is provided with the gas-liquid separation tank body, the lower part and the upper part of the gas-liquid separation tank body are respectively connected with a first-stage lifting pipe and a second-stage lifting pipe, the lower ends of the first-stage lifting pipe and the second-stage lifting pipe are respectively connected with the lower three-phase separator and the upper three-phase separator, the bottom of the gas-liquid separation tank body is provided with an internal circulation liquid return pipe, the internal circulation liquid return pipe extends to the bottom of the lower reaction zone, the upper part of the gas-liquid separation tank body is provided with a gas outlet, and the upper part in the gas-liquid separation tank body is provided with a wire mesh demister, the screen mesh demister is positioned between the gas outlet and the primary lifting pipe, a liquid baffle is arranged between the gas outlet and the screen mesh demister, the biogas circulating and conveying unit comprises a biogas collecting tank and a biogas fan, the gas inlet end of the biogas collecting tank is communicated with the gas outlet through a biogas pipe, the gas outlet end of the biogas collecting tank is communicated with the gas inlet end of the biogas fan, and the gas outlet end of the biogas fan is communicated with the primary lifting pipe through a gas stripping output pipe.
And a water-stop sheet is arranged below the inside of the gas-liquid separation tank body, and a plurality of through holes are formed in the water-stop sheet.
And the upper side and the lower side of the wire mesh demister are positioned on the outer wall of the gas-liquid separation tank body and are respectively provided with a pressure gauge.
The bottom of the gas-liquid separation tank body is provided with a conical hopper and is connected with the internal circulation liquid return pipe through the conical hopper.
The internal circulation liquid return pipe extends to the lower part of the reaction tank body, and an umbrella-shaped reflecting plate is arranged at the bottom of the internal circulation liquid return pipe.
The bottom of the reaction tank body is provided with a water distribution cover which is arranged below the umbrella-shaped reflecting plate.
The biogas collection tank is connected with a separated biogas monitoring device, a biogas outer discharge pipe and a biogas emptying discharge pipe.
The biogas collection tank is provided with a recycled biogas monitoring device, a filter and a dryer, and the filter and the dryer are arranged at the gas outlet end of the biogas collection tank.
The gas-stripping output pipe is provided with a check valve.
The utility model has the beneficial effects that:
1. in the utility model, the bottom of the gas-liquid separation tank is provided with the cone hopper, and the bottom of the cone hopper is connected with the liquid return pipe, so that all separated water can enter the internal circulation liquid return pipe and flow back to the reaction tank body. The bottom of the internal circulation liquid return pipe is provided with a reflecting plate, so that the returned liquid is uniformly distributed at the bottom of the reaction tank body. The lower part of the gas-liquid separation tank body is provided with a water-stop sheet, the water-stop sheet is provided with a through hole, the gas-liquid separation tank body has a gas-liquid separation effect, and the upper part of the gas-liquid separation tank body is provided with a wire mesh demister, so that the gas-liquid separation effect is further improved. The screen mesh demister is provided with a washing hole for washing the screen mesh demister. The screen mesh demister is provided with a pressure gauge up and down, and the blockage degree of the screen mesh demister and the time for flushing and replacing can be judged according to the difference between the pressure of the upper part and the pressure of the lower part.
2. In the utility model, the gas outlet of the gas-liquid separation tank is positioned above the gas-liquid separation tank, the lower part of the gas outlet is provided with the liquid baffle, and the gas passing through the wire mesh demister needs to be discharged from the gas outlet after being turned back by the baffle, thereby further reducing the possibility of liquid discharge.
3. In the utility model, the biogas generated by the reaction tank body is circulated back to the first-stage lifting pipe through the biogas circulating conveying unit by the biogas fan, so that the stability and continuity of the circulation volume in the system are ensured, the gas stripping effect is enhanced, the circulation flow rate in the reaction tank body is improved, the internal circulation effect is improved, the good contact between anaerobic activated sludge and sewage is ensured, and the accumulation and hardening of the anaerobic activated sludge in a water distribution area are avoided.
The utility model can effectively separate the moisture in the methane in the anaerobic process, realize high-efficiency internal circulation of the sewage and ensure the normal operation of the IC anaerobic process.
Drawings
FIG. 1 is a schematic structural diagram of a high-efficiency internal circulation IC anaerobic reactor provided by the utility model.
FIG. 2 is a diagram of the internal structure of a gas-liquid separation tank body of the high-efficiency internal circulation IC anaerobic reactor provided by the utility model.
1. A reaction tank body; 2. a gas-liquid separation tank body; 3. a water-stop sheet; 4. a biogas circulating and conveying unit; 5. a lower reaction zone; 6. an upper reaction zone; 7. a lower three-phase separator; 8. an upper three-phase separator; 9. a first-stage riser; 10. a secondary riser; 11. an internal circulation liquid return pipe; 12. an air outlet; 13. a wire mesh demister; 14. a liquid baffle; 15. a biogas collection tank; 16. a biogas fan; 17. a biogas pipe; 18. gas stripping output pipe; 19. a pressure gauge; 20. a conical hopper; 21. an umbrella-shaped reflecting plate; 22. separating the biogas monitoring device; 23. a methane discharge pipe; 24. the discharge pipe is emptied by methane; 25. a recycled biogas monitoring device; 26. a filter; 27. a dryer; 28. a check valve; 29. through hole
Detailed Description
The utility model is further illustrated with reference to figures 1-2.
The utility model provides a high-efficiency internal circulation IC anaerobic reactor, which comprises a reaction tank body 1, a gas-liquid separation tank body 2 and a biogas circulating conveying unit 4, wherein a lower reaction zone 5 and an upper reaction zone 6 are arranged in the reaction tank body 1, the upper parts of the lower reaction zone 5 and the upper reaction zone 6 are respectively provided with a lower three-phase separator 7 and an upper three-phase separator 8, the top of the reaction tank body 1 is provided with the gas-liquid separation tank body 2, the lower part and the upper part of the gas-liquid separation tank body 2 are respectively connected with a first-stage lifting pipe 9 and a second-stage lifting pipe 10, the lower ends of the first-stage lifting pipe 9 and the second-stage lifting pipe 10 are respectively connected with the lower three-phase separator 7 and the upper three-phase separator 8, the bottom of the gas-liquid separation tank body 2 is provided with an internal circulation liquid return pipe 11, the internal circulation liquid return pipe 11 extends to the bottom of the lower reaction zone 5, the upper part of the gas-liquid separation tank body 2 is provided with a gas outlet 12, the upper part in the gas-liquid separation tank body 2 is provided with a wire mesh demister 13, the wire mesh demister 13 is positioned between a gas outlet 12 and a primary lifting pipe 9, a liquid baffle 14 is arranged between the gas outlet 12 and the wire mesh demister 13, the biogas circulating conveying unit 4 comprises a biogas collecting tank 15 and a biogas fan 16, the gas inlet end of the biogas collecting tank 15 is communicated with the gas outlet 12 through a biogas pipe 17, the gas outlet end of the biogas collecting tank 15 is communicated with the gas inlet end of the biogas fan 16, and the gas outlet end of the biogas fan 16 is communicated with the primary lifting pipe 9 through a gas stripping output pipe 18.
A water-stop sheet 3 is arranged below the inside of the gas-liquid separation tank body 2, and a plurality of through holes 29 are formed in the water-stop sheet 3.
And pressure gauges 19 are respectively arranged on the upper side and the lower side of the wire mesh demister 13 and positioned on the outer wall of the gas-liquid separation tank body 2.
The bottom of the gas-liquid separation tank body 2 is provided with a cone hopper 20 and is connected with the internal circulation liquid return pipe 11 through the cone hopper 20.
The internal circulation liquid return pipe 11 extends to the lower part of the reaction tank body 1, and the bottom of the internal circulation liquid return pipe 11 is provided with an umbrella-shaped reflecting plate 21.
The bottom of the reaction tank body 1 is provided with a water distribution cover which is arranged below the umbrella-shaped reflecting plate 21.
The methane collecting tank 15 is connected with a separated methane monitoring device 22, a methane outer discharge pipe 23 and a methane emptying discharge pipe 24.
The biogas collection tank 15 is provided with a recycled biogas monitoring device 25, a filter 26 and a dryer 27, and the filter 26 and the dryer 27 are arranged at the gas outlet end of the biogas collection tank 15.
The gas stripping outlet pipe 18 is provided with a non-return valve 28.
Working principle of the utility model
Biogas passes through the lower three-phase separator, and after the upper three-phase separator is collected, the biogas is wrapped up and carried sewage under the action of gas stripping and is conveyed to the gas-liquid separation tank body through the primary lifting pipe and the secondary lifting pipe for gas-liquid separation, most of water is blocked through the baffle plate and the through hole, gas enters the upper part of the gas-liquid separation tank body through the through hole, and the upper part of the gas-liquid separation tank body is provided with the wire mesh demister for further gas-liquid separation of the gas reaching the upper part, so that the gas-liquid separation effect is ensured. Gas passing through the wire mesh demister needs to be discharged from the gas outlet after being turned back by the liquid baffle, the possibility of liquid discharge is further reduced, meanwhile, the bottom of the gas-liquid separation tank body is provided with a conical hopper, the bottom of the conical hopper is connected with an internal circulation liquid return pipe, separated water enters the internal circulation liquid return pipe after being collected by the conical hopper and flows back into the reaction tank body, and the bottom of the internal circulation liquid return pipe is provided with a reflecting plate, so that the returned liquid is uniformly distributed at the bottom of the reaction tank body, and the internal circulation process is completed; the generated marsh gas is continuously collected into a marsh gas collecting tank through a marsh gas pipe, the marsh gas collecting tank realizes the stable pressure collection of the marsh gas through a recycled marsh gas monitoring device, and the redundant marsh gas is delivered out through a marsh gas delivery pipe. When the internal circulation flow automatically monitored by an operator or a system is insufficient and a gas stripping circulation system needs to be started, a biogas fan is started, biogas is sucked out from a biogas collecting tank at a certain flow rate, sequentially passes through a biogas dryer, a filter and a gas outlet flow meter, is input into a primary lifting pipe, and in order to prevent the gas from flowing back to the biogas fan, a check valve is further arranged on a gas stripping output pipe. The methane in the primary riser is conveyed back by the methane fan, so that the gas flow in the primary riser is improved, more sewage is driven to enter, a larger internal circulation amount is formed, the internal circulation efficiency is improved, the ascending flow rate of the methane in the reaction tank is improved, the wastewater in the reaction tank is in more sufficient contact with granular sludge, meanwhile, the reflux further dilutes the water, and the shock resistance of the system is enhanced.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. A high-efficient inner loop IC anaerobic reactor which characterized in that: the biogas circulating and conveying device comprises a reaction tank body (1), a gas-liquid separation tank body (2) and a biogas circulating and conveying unit (4), wherein a lower reaction zone (5) and an upper reaction zone (6) are arranged in the reaction tank body (1), the upper parts of the lower reaction zone (5) and the upper reaction zone (6) are respectively provided with a lower three-phase separator (7) and an upper three-phase separator (8), the top of the reaction tank body (1) is provided with the gas-liquid separation tank body (2), the lower part and the upper part of the gas-liquid separation tank body (2) are respectively connected with a primary lifting pipe (9) and a secondary lifting pipe (10), the lower ends of the primary lifting pipe (9) and the secondary lifting pipe (10) are respectively connected with the lower three-phase separator (7) and the upper three-phase separator (8), the bottom of the gas-liquid separation tank body (2) is provided with an internal circulating liquid return pipe (11), and the internal circulating liquid return pipe (11) extends to the bottom of the lower reaction zone (5), the upper part of the gas-liquid separation tank body (2) is provided with a gas outlet (12), the upper part in the gas-liquid separation tank body (2) is provided with a wire mesh demister (13), the wire mesh demister (13) is positioned between the gas outlet (12) and the primary lifting pipe (9), a liquid baffle (14) is arranged between the gas outlet (12) and the wire mesh demister (13), the biogas circulating conveying unit (4) comprises a biogas collecting tank (15) and a biogas fan (16), the gas inlet end of the biogas collecting tank (15) is communicated with the gas outlet (12) through a biogas pipe (17), the gas outlet end of the biogas collecting tank (15) is communicated with the gas inlet end of the biogas fan (16), and the gas outlet end of the biogas fan (16) is communicated with the primary lifting pipe (9) through a gas stripping output pipe (18).
2. A high efficiency internal circulation IC anaerobic reactor according to claim 1, characterized in that: a water-stop sheet (3) is arranged below the inside of the gas-liquid separation tank body (2), and a plurality of through holes (29) are formed in the water-stop sheet (3).
3. The high efficiency internal circulation IC anaerobic reactor according to claim 1, wherein: and pressure gauges (19) are respectively arranged on the upper side and the lower side of the wire mesh demister (13) and positioned on the outer wall of the gas-liquid separation tank body (2).
4. The high efficiency internal circulation IC anaerobic reactor according to claim 1, wherein: the bottom of the gas-liquid separation tank body (2) is provided with a cone hopper (20) and is connected with the internal circulation liquid return pipe (11) through the cone hopper (20).
5. The high efficiency internal circulation IC anaerobic reactor according to claim 1, wherein: the internal circulation liquid return pipe (11) extends to the lower part of the reaction tank body (1), and an umbrella-shaped reflecting plate (21) is arranged at the bottom of the internal circulation liquid return pipe (11).
6. The efficient internal circulation IC anaerobic reactor according to claim 5, wherein: the bottom of the reaction tank body (1) is provided with a water distribution cover which is arranged below the umbrella-shaped reflecting plate (21).
7. The high efficiency internal circulation IC anaerobic reactor according to claim 1, wherein: the biogas collection tank (15) is connected with a separated biogas monitoring device (22), a biogas outlet pipe (23) and a biogas emptying discharge pipe (24).
8. The high efficiency internal circulation IC anaerobic reactor according to claim 1, wherein: the biogas collection tank (15) is provided with a recycled biogas monitoring device (25), a filter (26) and a dryer (27), and the filter (26) and the dryer (27) are arranged at the gas outlet end of the biogas collection tank (15).
9. A high efficiency internal circulation IC anaerobic reactor according to claim 1, characterized in that: the gas-stripping output pipe (18) is provided with a check valve (28).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123048004.1U CN216946412U (en) | 2021-12-07 | 2021-12-07 | High-efficient inner loop IC anaerobic reactor |
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| CN202123048004.1U CN216946412U (en) | 2021-12-07 | 2021-12-07 | High-efficient inner loop IC anaerobic reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403142A (en) * | 2022-09-06 | 2022-11-29 | 三强环保集团有限公司 | Biphase internal circulation anaerobic reactor |
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2021
- 2021-12-07 CN CN202123048004.1U patent/CN216946412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403142A (en) * | 2022-09-06 | 2022-11-29 | 三强环保集团有限公司 | Biphase internal circulation anaerobic reactor |
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