CN211688755U - Coupling system for continuous excess sludge disintegration and biogas production through fermentation - Google Patents
Coupling system for continuous excess sludge disintegration and biogas production through fermentation Download PDFInfo
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- CN211688755U CN211688755U CN201922268137.6U CN201922268137U CN211688755U CN 211688755 U CN211688755 U CN 211688755U CN 201922268137 U CN201922268137 U CN 201922268137U CN 211688755 U CN211688755 U CN 211688755U
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Abstract
The utility model relates to a coupling system for continuous excess sludge cracking and biogas production through fermentation. The system comprises a high-pressure homogenizer, an excess sludge regulating tank, a peristaltic pump and an up-flow anaerobic sludge bed; the water inlet of the high-pressure homogenizer is provided with a feed hopper, the feed hopper is internally provided with an excess sludge filter screen, a stirrer is arranged in the excess sludge regulating tank, a methane gas collecting port is arranged at the top of an upflow anaerobic sludge bed, a sludge discharging port is arranged at the bottom of the upflow anaerobic sludge bed, an inclined plate sedimentation layer is arranged at the upper part of the upflow anaerobic sludge bed, a water outlet is arranged above the inclined plate sedimentation layer, a sludge reaction bed is arranged below the inclined plate sedimentation layer, and a water circulating device is arranged outside the upflow anaerobic sludge bed. The utility model discloses mud explains effectual, job stabilization, recovery biogas utilization.
Description
Technical Field
The utility model relates to a surplus sludge explains and energy recovery's device especially relates to a continuous type surplus sludge explains and fermentation produces the coupled system of marsh gas.
Background
The high-pressure homogenizing technology is a mechanical crushing technology for superfine grinding of liquid material or solid with liquid as carrier, and can thin substrate into micron level or even nanometer level. The principle is that the high-pressure homogenizer applies huge pressure on a substrate and then releases the pressure instantly, so that huge shearing force and vortex are caused by the pressure difference, and the substrate is broken. The high-pressure homogenizer all is equipped with the feeder hopper, and the large granule impurity in the excess sludge blocks up the high-pressure homogenizer feeder hopper easily, and in addition, the high-pressure homogenizer delivery port generally all is direct connection to upflow anaerobic sludge blanket (UASB reactor), and the high-pressure homogenizer of excess sludge well is cracked the back, is liquid fluid form, and its concentration and pH value etc. can't be adjusted, has that partial excess sludge does not conform to anaerobic fermentation's requirement, and the continuity is relatively poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a continuous type excess sludge explains and produces coupling system of marsh gas with fermentation to solve not enough among the prior art.
The technical scheme of the utility model is that: a coupling system for continuous excess sludge disintegration and biogas production through fermentation of the same comprises a high-pressure homogenizer, an excess sludge regulating tank, a peristaltic pump and an up-flow anaerobic sludge bed;
a feed hopper is arranged at a water inlet of the high-pressure homogenizer, an excess sludge filter screen is arranged in the feed hopper, a water outlet of the high-pressure homogenizer is connected with an excess sludge regulating tank through a connecting pipe, a stirrer is arranged in the excess sludge regulating tank, and a water outlet of the excess sludge regulating tank is connected with an up-flow anaerobic sludge bed through a connecting pipe;
the upflow anaerobic sludge blanket comprises a water circulation device, a methane gas collecting port, a water outlet, a three-phase separator, a sludge reaction blanket, a sludge discharge port and an inclined plate sedimentation layer, wherein the methane gas collecting port is arranged at the top of the upflow anaerobic sludge blanket, the sludge discharge port is arranged at the bottom of the upflow anaerobic sludge blanket, the inclined plate sedimentation layer is arranged at the upper part of the upflow anaerobic sludge blanket, the water outlet is arranged above the inclined plate sedimentation layer, the sludge reaction blanket is arranged below the inclined plate sedimentation layer, and the water circulation device is arranged outside the upflow anaerobic sludge blanket.
Further, the feeder hopper inner wall be equipped with belt cleaning device, belt cleaning device include a plurality of shower nozzles, the shower nozzle setting on the feeder hopper inner wall and connect the washing water pipe, the shower nozzle setting in the top of surplus sludge filter screen.
Furthermore, the lower part of the inclined plate sedimentation layer is fixedly connected to the inner wall of the upflow anaerobic sludge bed, the upper part of the inclined plate sedimentation layer is obliquely arranged, the inclined plate sedimentation layer is wound into a cone shape, and the top of the inclined plate sedimentation layer is open to allow liquid sludge to flow upwards.
Furthermore, a sludge discharge pump is arranged at the sludge discharge port and is started at regular time.
Furthermore, the water circulation device comprises a circulation inlet and a circulation outlet, the circulation inlet is arranged below the sludge reaction bed, and the circulation outlet is arranged above the sludge reaction bed and below the inclined plate sedimentation layer.
The utility model has the advantages that:
1. compared with cracking technologies such as microwave and ultrasonic, the high-pressure homogenization technology can crack the excess sludge more thoroughly, has higher cracking degree, is beneficial to releasing more organic matters from the excess sludge, and has obvious cracking effect;
2. compared with a chemical cracking method, the high-pressure homogenization technology does not need to add chemical agents, and has environmental protection benefit;
3. the residual sludge is in a liquid fluid state after being homogenized and cracked under high pressure, is similar to sewage, has strong fluidity, is not easy to precipitate organic matters, and has better dispersibility;
4. an up-flow anaerobic sludge bed (UASB reactor) is used for treating fluid residual sludge and producing biogas through anaerobic fermentation, a water circulation device is arranged outside the reactor to improve the rising flow rate of the liquid sludge in the reactor, a precipitated sludge outlet is arranged at the bottom of the UASB reactor to periodically discharge partial sludge, and the reactor device is simple;
5. the system combines a high-pressure homogeneous efficient excess sludge cracking technology and a UASB efficient fermentation technology to realize maximum treatment and resource utilization of excess sludge, and the system has good treatment effect and strong operability;
6. a treated residual sludge centralized regulating tank is arranged between the water outlet of the high-pressure homogenizer and the UASB water inlet and is used for regulating the concentration, the pH value and the like of sludge so as to meet the anaerobic fermentation requirement of the UASB reactor;
7. the feed hopper is provided with a residual sludge filter screen for filtering large-particle impurities in the residual sludge, so that the blockage of the high-pressure homogenizer is avoided;
8. the water outlet of the high-pressure homogenizer and the UASB water inlet are respectively connected with the regulating tank through connecting pipes, so that the continuity of the whole system is ensured.
Drawings
Figure 1 is a schematic structural view of the present invention,
FIG. 2 is a schematic diagram of the structure of the inclined plate sedimentation layer.
In the figure, 1 is an excess sludge filter screen, 2 is a high-pressure homogenizer, 3 is an excess sludge regulating tank, 4 is a stirrer, 5 is a peristaltic pump, 6 is a water circulation device, 7 is a methane gas collecting port, 8 is a water outlet, 9 is an inclined plate sedimentation layer, 10 is an upflow anaerobic sludge bed, 11 is a sludge reaction bed, and 12 is a sludge discharge port.
Detailed Description
A coupling system for continuous excess sludge disintegration and biogas production through fermentation of the same comprises a high-pressure homogenizer 2, an excess sludge regulating tank 3, a peristaltic pump 5 and an upflow anaerobic sludge bed 10;
the water inlet of the high-pressure homogenizer 2 is provided with a feed hopper, the feed hopper is internally provided with an excess sludge filter screen 1, the water outlet of the high-pressure homogenizer 2 is connected with an excess sludge adjusting tank 3 through a connecting pipe, the excess sludge adjusting tank 3 is internally provided with a stirrer 4, the water outlet of the excess sludge adjusting tank 3 is connected with an up-flow anaerobic sludge bed 10 through a connecting pipe, and the treated excess sludge adjusting tank 3 is arranged between the water outlet of the high-pressure homogenizer 2 and the UASB water inlet and is used for adjusting the concentration, the pH value and the like of sludge so as to meet the anaerobic fermentation requirement of the UASB reactor and also ensure the continuity of the whole system;
the upflow anaerobic sludge blanket 10 comprises a water circulation device 6, a methane gas collecting port 7, a water outlet 8, a three-phase separator, a sludge reaction blanket 11, a sludge discharge port 12 and an inclined plate sedimentation layer 9, wherein the methane gas collecting port 7 is arranged at the top of the upflow anaerobic sludge blanket 10, the sludge discharge port 12 is arranged at the bottom of the upflow anaerobic sludge blanket 10, the inclined plate sedimentation layer 9 is arranged at the upper part of the upflow anaerobic sludge blanket 10, the water outlet 8 is arranged above the inclined plate sedimentation layer 9, the sludge reaction blanket 11 is arranged below the inclined plate sedimentation layer 9, and the water circulation device 6 is arranged outside the upflow anaerobic sludge blanket 10.
The feeder hopper inner wall be equipped with belt cleaning device, belt cleaning device include a plurality of shower nozzles, the shower nozzle setting on the feeder hopper inner wall and connect the washing water pipe, the shower nozzle setting in the top of surplus sludge filter screen 1.
The lower part of the inclined plate sedimentation layer 9 is fixedly connected to the inner wall of an upflow anaerobic sludge blanket 10, the upper part of the inclined plate sedimentation layer 9 is obliquely arranged, the inclined plate sedimentation layer 9 is wound into a cone shape, and the top of the inclined plate sedimentation layer 9 is open for the liquid sludge to flow upwards.
And a sludge discharge pump is arranged at the sludge discharge port 12 and is started at regular time to discharge sludge at the bottom of the upflow anaerobic sludge bed at regular time.
The water circulation device 6 comprises a circulation inlet and a circulation outlet, the circulation inlet is arranged below the sludge reaction bed 11, and the circulation outlet is arranged above the sludge reaction bed 11 and below the inclined plate sedimentation layer 9, so that the rising flow rate of liquid sludge in the reactor is improved.
The excess sludge cracked by the high-pressure homogenizer 2 is subjected to anaerobic fermentation in the UASB to produce the biogas, the system realizes effective cracking of the excess sludge and can recycle the biogas produced by fermentation.
The "high-pressure homogenizer" mentioned in the present invention is a known prior art, and is a high-pressure homogenizing apparatus disclosed in patent No. 2016204745836.
Claims (5)
1. A coupling system for continuous excess sludge disintegration and biogas production through fermentation is characterized in that: the system comprises a high-pressure homogenizer, an excess sludge regulating tank, a peristaltic pump and an up-flow anaerobic sludge bed;
a feed hopper is arranged at a water inlet of the high-pressure homogenizer, an excess sludge filter screen is arranged in the feed hopper, a water outlet of the high-pressure homogenizer is connected with an excess sludge regulating tank through a connecting pipe, a stirrer is arranged in the excess sludge regulating tank, and a water outlet of the excess sludge regulating tank is connected with an up-flow anaerobic sludge bed through a connecting pipe;
the upflow anaerobic sludge blanket comprises a water circulation device, a methane gas collecting port, a water outlet, a three-phase separator, a sludge reaction blanket, a sludge discharge port and an inclined plate sedimentation layer, wherein the methane gas collecting port is arranged at the top of the upflow anaerobic sludge blanket, the sludge discharge port is arranged at the bottom of the upflow anaerobic sludge blanket, the inclined plate sedimentation layer is arranged at the upper part of the upflow anaerobic sludge blanket, the water outlet is arranged above the inclined plate sedimentation layer, the sludge reaction blanket is arranged below the inclined plate sedimentation layer, and the water circulation device is arranged outside the upflow anaerobic sludge blanket.
2. The coupling system for continuous excess sludge disintegration and biogas production by fermentation of the same as claimed in claim 1, wherein: the feeder hopper inner wall be equipped with belt cleaning device, belt cleaning device include a plurality of shower nozzles, the shower nozzle setting on the feeder hopper inner wall and connect the washing water pipe, the shower nozzle setting in the top of surplus sludge filter screen.
3. The coupling system for continuous excess sludge disintegration and biogas production by fermentation of the same as claimed in claim 1, wherein: the lower part of the inclined plate sedimentation layer is fixedly connected to the inner wall of the upflow anaerobic sludge bed, the upper part of the inclined plate sedimentation layer is obliquely arranged, the inclined plate sedimentation layer is wound into a cone shape, and the top of the inclined plate sedimentation layer is open to supply liquid sludge to flow upwards.
4. The coupling system for continuous excess sludge disintegration and biogas production by fermentation of the same as claimed in claim 1, wherein: and a sludge discharge pump is arranged at the sludge discharge port and is started at regular time.
5. The coupling system for continuous excess sludge disintegration and biogas production by fermentation of the same as claimed in claim 1, wherein: the water circulation device comprises a circulation inlet and a circulation outlet, the circulation inlet is arranged below the sludge reaction bed, and the circulation outlet is arranged above the sludge reaction bed and below the inclined plate sedimentation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268137.6U CN211688755U (en) | 2019-12-17 | 2019-12-17 | Coupling system for continuous excess sludge disintegration and biogas production through fermentation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268137.6U CN211688755U (en) | 2019-12-17 | 2019-12-17 | Coupling system for continuous excess sludge disintegration and biogas production through fermentation |
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| CN211688755U true CN211688755U (en) | 2020-10-16 |
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| CN201922268137.6U Active CN211688755U (en) | 2019-12-17 | 2019-12-17 | Coupling system for continuous excess sludge disintegration and biogas production through fermentation |
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