CN215905931U - ICST continuous internal circulation stirring anaerobic reactor - Google Patents
ICST continuous internal circulation stirring anaerobic reactor Download PDFInfo
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- CN215905931U CN215905931U CN202120930381.9U CN202120930381U CN215905931U CN 215905931 U CN215905931 U CN 215905931U CN 202120930381 U CN202120930381 U CN 202120930381U CN 215905931 U CN215905931 U CN 215905931U
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Abstract
The utility model provides an ICST continuous internal circulation stirring anaerobic reactor, and particularly relates to the field of reactor devices, which comprises a reactor tank body, wherein a three-phase separator is arranged in the reactor tank body, and a biogas collection tank is arranged at the upper end of the reactor tank body; the upper part of the reactor tank body is also provided with a water outlet pipe; the lower part of the reactor tank body is provided with a water distribution device; also comprises a sludge pipe, a water inlet pipe, a sewage circulating pipe and a biogas pipe; wherein the sludge pipe is connected with the lower part of the reactor tank body and is used for discharging sludge in the reactor tank body; one end of the sewage circulating pipe is connected with the upper part of the reactor tank body, and the other end of the sewage circulating pipe is connected with the water distribution device; the water inlet pipe is connected with a sewage circulating pipe; one end of the methane pipe is connected with the methane collecting tank, and the other end of the methane pipe is connected with the sewage circulating pipe. The utility model has stronger controllability, can treat COD up to hundreds of thousands and can resist the impact of high-concentration suspended matters and grease.
Description
Technical Field
The utility model belongs to the field of reactor devices, and particularly relates to an ICST continuous internal circulation stirring anaerobic reactor.
Background
At present, the anaerobic fermentation devices applied to the field of sewage treatment mainly comprise AF, UBF, IC, UASB, EGSB, SSBR, SMBR and the like, and the IC, UASB and EGSB reactors are commonly used. The reactors generally have the advantages of high sludge concentration, high organic load and the like, and can degrade high-concentration organic sewage. However, no stirring device is arranged in the reactor, and the sludge at the upper part is driven to be in a suspension state only by the rising of the methane generated by anaerobic fermentation, the stirring capacity of the sludge at the lower part is not large, and the biological mass transfer capacity is weak. And the concentration of the water inlet suspended matters of the reactors is generally required to be controlled below 100mg/L, and the reactors are sensitive to sudden changes of water quality and load and have poor impact resistance. And since the domestic garbage is classified, the kitchen garbage begins to be stripped from the domestic garbage, and the independent collection, transportation, disposal and resource utilization are realized. The organic matter concentration of the press filtrate after the pretreatment of the kitchen garbage can reach hundreds of thousands of mg/L, and the oil, suspended matters, solid content and the like are far higher than those of leachate of an incineration plant or a landfill. The traditional water phase anaerobic fermentation device can not meet the treatment requirement of the filter pressing liquid on the removal efficiency of organic pollutants; and the sewage treatment device can not resist the impact of high-concentration grease and suspended matters, and is not suitable for the treatment of the sewage.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model aims to provide the ICST continuous internal circulation stirring anaerobic reactor which has stronger controllability. Can treat up to hundreds of thousands of COD and resist the impact of high-concentration suspended substances and grease.
The utility model provides the following technical scheme:
an ICST continuous internal circulation stirring anaerobic reactor comprises a reactor tank body, a three-phase separator is arranged in the reactor tank body,
the upper end of the reactor tank body is provided with a biogas collecting tank; the upper part of the reactor tank body is also provided with a water outlet pipe; the lower part of the reactor tank body is provided with a water distribution device;
also comprises a sludge pipe, a water inlet pipe, a sewage circulating pipe and a biogas pipe; wherein the sludge pipe is connected with the lower part of the reactor tank body and is used for discharging sludge in the reactor tank body;
one end of the sewage circulating pipe is connected with the upper part of the reactor tank body, and the other end of the sewage circulating pipe is connected with the water distribution device;
the water inlet pipe is connected with a sewage circulating pipe; one end of the methane pipe is connected with the methane collecting tank, and the other end of the methane pipe is connected with the sewage circulating pipe.
Preferably, the three-phase separator comprises a first three-phase separator and a second three-phase separator which are sequentially arranged from top to bottom.
Preferably, the water distribution device comprises a water distribution pipe and water distribution nozzles, the water distribution pipe is annular, the water distribution pipe is arranged at the lower part of the periphery of the reactor tank body, and a plurality of water distribution nozzles are annularly arranged at the inner side of the water distribution pipe; the sewage circulating pipe is communicated with the water distribution pipe;
preferably, the upper end of the reactor tank body is also provided with a water-sealed tank, the water-sealed tank is provided with a methane outlet, and the top of the methane collecting tank is connected with the water-sealed tank.
Preferably, the sewage circulating pipe is provided with a gas-liquid mixing device, and the biogas pipe is connected with the sewage circulating pipe through the gas-liquid mixing device.
Preferably, a water seal water replenishing pipe is further arranged on the water seal tank; the upper end of the reactor tank body is also provided with a flushing water pipe.
Preferably, the upper end of the water outlet pipe is connected with the upper part of the reactor tank body, and the lower end of the water outlet pipe is provided with a U-shaped seal head.
The utility model has the beneficial effects that:
the utility model still has about 90 percent removal rate on COD with the concentration of 10000mg/L and above, and the removal efficiency of the COD is high; can resist the impact of grease and suspended matters with the concentration of thousands of mg/L; the height of a sludge suspension layer is increased through gas-liquid combined stirring, the sludge stirring is enhanced, and the biological mass transfer efficiency is 25% or more higher than that of the traditional anaerobic reactor. Compared with the traditional anaerobic reactor ICST continuous internal circulation stirring anaerobic reactor, the anaerobic reactor has the advantages that the internal and external circulation is combined with gas stirring, and the controllability is stronger. Can treat up to hundreds of thousands of COD. Resisting the impact of high-concentration suspended matters and grease.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a view showing the structure of a gas-liquid mixing apparatus;
FIG. 3 is a structural view of a water distribution device;
labeled as: 1. sealing the tank with water; 2. a biogas outlet; 3. a biogas collection tank; 4. a biogas pipe; 5. a first three-phase separator; 6. a second three-phase separator; 7. a sludge pipe; 8. a gas-liquid mixing device; 9. a water inlet pipe; 10. a water outlet pipe; 11. water seal water replenishing pipe; 12. flushing the water pipe; 13. a water distribution pipe; 14. a water distribution nozzle; 15. sealing the end; 16. a sewage circulating pipe; 17. a reactor tank body.
Detailed Description
As shown in fig. 1 to 3, an ICST continuous internal circulation stirring anaerobic reactor comprises a reactor tank 17, a three-phase separator is arranged in the reactor tank 17, and a biogas collection tank 3 is arranged at the upper end of the reactor tank 17; the upper part of the reactor tank body 17 is also provided with a water outlet pipe 10; the lower part of the reactor tank 17 is provided with a water distribution device; also comprises a sludge pipe 7, a water inlet pipe 9, a sewage circulating pipe 16 and a biogas pipe 4; wherein the sludge pipe 7 is connected with the lower part of the reactor tank 17 and is used for discharging sludge in the reactor tank 17; one end of a sewage circulating pipe 16 is connected with the upper part of the reactor tank body 17, and the other end of the sewage circulating pipe 16 is connected with a water distribution device; the water inlet pipe 9 is connected with a sewage circulating pipe 16; one end of the biogas pipe 4 is connected with the biogas collecting tank 3, and the other end of the biogas pipe 4 is connected with the sewage circulating pipe 16. The three-phase separator comprises a first three-phase separator 5 and a second three-phase separator 6, wherein the first three-phase separator 5 and the second three-phase separator 6 are sequentially arranged from top to bottom, and the separation efficiency and the separation quality are ensured to be improved. The water distribution device comprises a water distribution pipe 13 and water distribution nozzles 14, the water distribution pipe 13 is annular, the water distribution pipe 13 is arranged at the lower part of the periphery of the reactor tank body 17, and a plurality of water distribution nozzles 14 are annularly arranged at the inner side of the water distribution pipe 13 and are used for distributing water uniformly and ensuring the water distribution efficiency; the sewage circulating pipe 16 is communicated with the water distribution pipe 13; the upper end of the reactor tank body 17 is also provided with a water seal tank 1, the water seal tank 1 is provided with a methane outlet 2, and the top of the methane collection tank 3 is connected with the water seal tank 1. The sewage circulating pipe 16 is provided with a gas-liquid mixing device 8, and the biogas pipe 4 is connected with the sewage circulating pipe 16 through the gas-liquid mixing device 8, so that the mixing efficiency is improved. The water seal tank 1 is also provided with a water seal water replenishing pipe 11 for water seal water replenishing; the upper end of the reactor tank 17 is also provided with a flushing water pipe 12 for flushing operation. The upper end of the water outlet pipe 10 is connected with the upper part of the reactor tank body 17, and the lower end of the water outlet pipe 10 is provided with a U-shaped seal head to realize water seal.
The working method of the utility model is as follows:
the press filtrate or other wastewater is pumped into the inlet pipe 9 by the inlet pump and enters the ICST anaerobic reactor body 17. The sewage is uniformly mixed with anaerobic granular sludge in the reactor, and most organic matters are converted into methane; the generated marsh gas rises along the lifting pipe, after solid-liquid-gas separation is carried out by the first three-phase separator 5 and the second three-phase separator 6, the separated marsh gas enters the marsh gas collecting tank 3. Biogas enters the water seal tank 1 from the biogas collection tank 3 to complete primary gas purification. The gas-liquid mixing device 8 sucks the primarily purified methane into a sewage circulating pipe 16, and the methane is mixed with the sewage and then is sprayed into a reactor body 17 through a water distribution nozzle 14 at the bottom of the reactor to form gas-liquid circulation. The granular sludge in the reactor body 17 can be promoted to reach a complete fluidization state, and simultaneously the sludge at the bottom of the reactor body 1 is driven to float upwards and circularly flow in the reactor body 1, so that the biological mass transfer efficiency is improved by more than 25 percent compared with that of the traditional anaerobic reactor;
although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An anaerobic reactor with ICST continuous internal circulation stirring is characterized in that: comprises a reactor tank body, a three-phase separator is arranged in the reactor tank body,
the upper end of the reactor tank body is provided with a biogas collecting tank; the upper part of the reactor tank body is also provided with a water outlet pipe; the lower part of the reactor tank body is provided with a water distribution device;
also comprises a sludge pipe, a water inlet pipe, a sewage circulating pipe and a biogas pipe; wherein the sludge pipe is connected with the lower part of the reactor tank body and is used for discharging sludge in the reactor tank body;
one end of the sewage circulating pipe is connected with the upper part of the reactor tank body, and the other end of the sewage circulating pipe is connected with the water distribution device;
the water inlet pipe is connected with a sewage circulating pipe; one end of the methane pipe is connected with the methane collecting tank, and the other end of the methane pipe is connected with the sewage circulating pipe.
2. An ICST continuous internal circulation stirred anaerobic reactor according to claim 1, wherein: the three-phase separator comprises a first three-phase separator and a second three-phase separator which are sequentially arranged from top to bottom.
3. An ICST continuous internal circulation stirred anaerobic reactor according to claim 1, wherein: the water distribution device comprises a water distribution pipe and water distribution nozzles, the water distribution pipe is annular, the water distribution pipe is arranged at the lower part of the periphery of the reactor tank body, and a plurality of water distribution nozzles are annularly arranged at the inner side of the water distribution pipe; the sewage circulating pipe is communicated with the water distribution pipe.
4. An ICST continuous internal circulation stirred anaerobic reactor according to claim 1, wherein: the upper end of the reactor tank body is also provided with a water-sealed tank, the water-sealed tank is provided with a methane outlet, and the top of the methane collecting tank is connected with the water-sealed tank.
5. An ICST continuous internal circulation stirred anaerobic reactor according to claim 1, wherein: the sewage circulating pipe is provided with a gas-liquid mixing device, and the biogas pipe is connected with the sewage circulating pipe through the gas-liquid mixing device.
6. An ICST continuous internal circulation stirred anaerobic reactor according to claim 1, wherein: the water-sealed tank is also provided with a water-sealed water replenishing pipe; the upper end of the reactor tank body is also provided with a flushing water pipe.
7. An ICST continuous internal circulation stirred anaerobic reactor according to claim 1, wherein: the upper end of the water outlet pipe is connected with the upper part of the reactor tank body, and the lower end of the water outlet pipe is provided with a U-shaped seal head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120930381.9U CN215905931U (en) | 2021-04-30 | 2021-04-30 | ICST continuous internal circulation stirring anaerobic reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120930381.9U CN215905931U (en) | 2021-04-30 | 2021-04-30 | ICST continuous internal circulation stirring anaerobic reactor |
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| Publication Number | Publication Date |
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| CN215905931U true CN215905931U (en) | 2022-02-25 |
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| CN202120930381.9U Active CN215905931U (en) | 2021-04-30 | 2021-04-30 | ICST continuous internal circulation stirring anaerobic reactor |
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| CN (1) | CN215905931U (en) |
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2021
- 2021-04-30 CN CN202120930381.9U patent/CN215905931U/en active Active
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