CN103288207A - Integrated secondary-fermentation anaerobic digestion tank - Google Patents

Integrated secondary-fermentation anaerobic digestion tank Download PDF

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Publication number
CN103288207A
CN103288207A CN2012100471814A CN201210047181A CN103288207A CN 103288207 A CN103288207 A CN 103288207A CN 2012100471814 A CN2012100471814 A CN 2012100471814A CN 201210047181 A CN201210047181 A CN 201210047181A CN 103288207 A CN103288207 A CN 103288207A
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fermentor tank
fermentation
tank
pipe
feed
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CN2012100471814A
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CN103288207B (en
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沈炳国
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Zhejiang Yixing Environmental Protection Technology Co., Ltd.
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沈炳国
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Abstract

The invention relates to an integrated secondary-fermentation anaerobic digestion tank, which comprises a tank body and is characterized in that the tank body comprises an inner fermentation tank and an outer fermentation tank; a charging hole communicated with a charging device is arranged at the lower part of the outer fermentation tank; a fender is arranged between the upper part of the outer fermentation tank and the outer wall of the inner fermentation tank; an inlet of an overflow pipe is arranged above the fender; the overflow pipe is introduced into the lower part of the inner fermentation tank; a three-phase separator is arranged at the opening above the inner fermentation tank; a discharging pipe is connectedly arranged on the three-phase separator; materials entering through the charging hole are fermented in the outer fermentation tank, and generated gas and liquid enter the inner fermentation tank through the overflow pipe, so that secondary fermentation is realized. The integrated secondary-fermentation anaerobic digestion tank disclosed by the invention has the advantages of being simple in structure, small in occupation area and high in methane generation rate and is capable of carrying out two-time anaerobic digestion of high-concentration organic matters and increasing the utilization rate of the organic matters.

Description

A kind of Secondary Fermentation integral anaerobic digester
Technical field
The present invention relates to a kind of fermentor tank, the integrated anaerobic digestor of especially a kind of Secondary Fermentation.
Background technology
The wastewater through organic matter content height that produces in changing food waste percolate and the processing, every liter of liquid COD can cause the changing food waste anaerobic digestion to have some problems up to tens0000 milligrams.General changing food waste all is to handle through one time fermentation, but the natural pond liquid that behind one time fermentation, produces, every liter of COD concentration has ten thousand milligrams of 1-2, and directly the water treatment difficulty is big, and this natural pond liquid biochemical is better, can carry out anaerobically fermenting again.Yet existing anaerobic fermentation tank can not satisfy this requirement, therefore need a kind of integrated anaerobic digestor of Secondary Fermentation that can carry out of design can make high concentrated organic wastewater through twice anaerobic digestion, improve the organism utilization ratio, the while claimed structure is simple and floor space is little.
Summary of the invention
Technical problem to be solved by this invention is that a kind of simple in structure and Secondary Fermentation integral anaerobic digester that floor space is little is provided at the above-mentioned state of the art, improves organism utilization ratio height, improves fermentation efficiency.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of Secondary Fermentation integral anaerobic digester, comprise tank body, it is characterized in that: fermentor tank and outer fermentor tank in described tank body comprises, the bottom of described outer fermentor tank offers the opening for feed that is connected with feeding unit, be provided with splash pan between the top of outer fermentor tank and the interior fermentor tank outer wall, the splash pan top is provided with the entrance of upflow tube, the bottom of fermentor tank in upflow tube feeds; The top opening part of fermentor tank is provided with triphase separator in described, and triphase separator is connected with discharge nozzle, gas and liquid that the material that enters from opening for feed produces behind the ferment tank outside, and fermentor tank is realized Secondary Fermentation in entering by upflow tube.
As improvement, described feeding unit is to be connected with annular supply ring by a charging house steward to form, the annular supply ring is nested with the bottom outer wall of fermentor tank outside, be connected with the some uniform feed-pipes that point to the center of circle on it, the bottom of described outer fermentor tank offers the some opening for feeds corresponding with feed-pipe, and on every feed-pipe, all have a valve be located at outside the outside of fermentor tank.
As improvement, described splash pan is divided into splash pan and undershield, all is the fan-shaped both sides, all around that are distributed in outer fermentor tank top, and upward the lower end of splash pan is higher than the lower end of undershield, and does not link to each other mutually.
As improvement, fermentor tank is provided with mud discharging device with the bottom of outer fermentor tank in described, described mud discharging device is to be connected with the annular row mud collar by a spoil disposal house steward to form, the annular row mud collar is placed on the bottom outside of outer fermentor tank, be connected with some outer fermentor tank shore pipes on it and feed outer fermentor tank, fermentor tank in an interior fermentor tank shore pipe feeds valve is all arranged on the every shore pipe, and valve is positioned at the outside of outer fermentor tank.
Improve, described upflow tube is 4 corresponding with splash pan again, and the upper end of upflow tube is higher than splash pan, and the lower end of upflow tube feeds the interior fermentor tank from the bottom.
Improve, described feed-pipe is 6, is uniformly distributed on the annular supply ring again.
Further improve, described outer fermentor tank shore pipe is 6, is uniformly distributed on the annular row mud collar.
At last, the top of described outer fermentor tank is provided with vapor pipe, vapor pipe just in time be positioned at triphase separator directly over.
Compared with prior art, the invention has the advantages that: tank body adopts the inside and outside combination of outer fermentor tank and interior fermentor tank, make high concentrated organic wastewater through twice anaerobic digestion, improved organic utilization ratio greatly, while is simple and reasonable, floor space is little, Secondary Fermentation integral anaerobic digester fermentation efficiency height of the present invention, to produce biogas speed fast, organism utilization ratio height, and the natural pond liquid concentration of generation is lower.
Description of drawings
Fig. 1 is the structural representation of the Secondary Fermentation integral anaerobic digester of the embodiment of the invention;
Fig. 2 is the structural representation of the feeding unit of the embodiment of the invention;
Fig. 3 is the structural representation of the splash pan of the embodiment of the invention;
Fig. 4 is the structural representation of the mud discharging device of the embodiment of the invention.
Embodiment
Describe in further detail below in conjunction with the present invention of accompanying drawing embodiment.
As shown in Figure 1, a kind of Secondary Fermentation integral anaerobic digester, comprise tank body, feeding unit 3, mud discharging device 8 and gas barrier, fermentor tank 2 and outer fermentor tank 1 in described tank body comprises, interior fermentor tank 2 is with being located in the outer fermentor tank 1, described feeding unit 3 is located at the bottom of fermentor tank 1 outside, as shown in Figure 2, be to be connected with annular supply ring 31 by a charging house steward 32 to form, wherein annular supply ring 32 is nested with the outside, bottom of fermentor tank 1 outside, be connected with 6 uniform feed-pipes 33 that point to the centers of circle on it, offer 6 opening for feeds corresponding with feed-pipe 33 on the lower sides of described outer fermentor tank 1, and on every feed-pipe 32, all have a valve 34 be located at outside the outside of fermentor tank 1, can control the charging of every feed-pipe, preferably, before the annular supply ring 31 vacuum breaker is housed, can prevents from flowing backwards; Be provided with the splash pan of relative tilt outside between the top of fermentor tank 1 and interior fermentor tank 2 outer walls, described splash pan is divided into splash pan 4 and undershield 5, as shown in Figure 3, last splash pan 4 and undershield 5 all are the fan-shaped front and back that are symmetrically distributed in outer fermentor tank 1 top, the left and right sides, and the lower end of last splash pan 4 is a little more than the lower end of undershield 5, and do not link to each other mutually, exist intermittently, other is provided with upflow tube 6, make the entrance of upflow tube 6 above splash pan, described upflow tube 6 is 4 corresponding with splash pan, the upper end of upflow tube 6 is higher than splash pan, the lower end of upflow tube 6 feeds the interior fermentor tank 2 from the bottom, high-concentration waste water ferments the fermentor tank 1 outside feed-pipe 33 enters like this, under the effect of the biogas that produces, upwards flow, up to running into splash pan, assemble solid substance in the waste water on the splash pan, compile the landing downwards of agglomerating back and form granule sludge, improve gas production rate, gas and liquid continue upwards, and Secondary Fermentation is carried out in fermentor tank 2 bottoms in flowing to by the upflow tube 6 above the splash pan; The top opening part of fermentor tank 2 is provided with triphase separator 7 in described, the top of triphase separator 7 is provided with the discharge nozzle 9 of level, described gas barrier is vapor pipe 10, be located at outer fermentor tank 1 top, triphase separator 7 directly over, by triphase separator 7 this material is divided into gas, water, mud three parts, gas is vapor pipe 10 discharges that biogas passes through outer fermentor tank 1 top, and water is that natural pond liquid is discharged by the discharge nozzle 9 of triphase separator 7 upper ends, and the granule sludge that mud namely forms sinks to the tank body below; The bottom of fermentor tank 2 and outer fermentor tank 1 in described mud discharging device 8 is located at, as shown in Figure 4, be to be connected with annular row mud collar 81 by a spoil disposal house steward 82 to form, annular row mud collar 82 is placed on the bottom outside of outer fermentor tank 1, being connected with 6 outer fermentor tank shore pipes 83 on it feeds in the outer fermentor tank 1, in feeding, an interior fermentor tank shore pipe 84 in the fermentor tank 2, valve 85 is all arranged on the every shore pipe, and valve 85 is positioned at the outside of outer fermentor tank 1.
During work, high concentrated organic wastewater ferments in the fermentor tank 1 outside feeding unit enters, under the effect of the biogas that produces, upwards flow, up to running into splash pan, assemble solid substance in the waste water on the splash pan, compile the landing downwards of agglomerating back and form granule sludge, improve gas production rate; Gas and liquid continue upwards, fermentor tank 2 bottoms in flowing to by the upflow tube 6 above the splash pan; The material of fermentor tank 2 continues under the effect of biogas in entering, upwards flow, the triphase separator 7 on interior fermentor tank 2 tops is divided into gas, water, mud three parts with this material, gas is vapor pipe 10 discharges that biogas passes through outer fermentor tank 1 top, water is that natural pond liquid is discharged by the discharge nozzle 9 of triphase separator 7 upper ends, the granule sludge that mud namely forms sinks to the tank body below, forms the gas-producing area of producing biogas fast, and unnecessary body refuse is discharged by mud discharging device 8.
By apparatus of the present invention, it is fast that high concentrated organic wastewater produces biogas speed, organism utilization ratio height, and the natural pond liquid concentration of generation is lower, and concrete experimental data sees table, and has as seen obtained the expectation effect.
High concentrated organic wastewater anaerobically fermenting data sheet (be example with the kitchen garbage, waste-water)

Claims (8)

1. Secondary Fermentation integral anaerobic digester, comprise tank body, it is characterized in that: fermentor tank and outer fermentor tank in described tank body comprises, the bottom of described outer fermentor tank offers the opening for feed that is connected with feeding unit, be provided with splash pan between the top of outer fermentor tank and the interior fermentor tank outer wall, the splash pan top is provided with the entrance of upflow tube, the bottom of fermentor tank in upflow tube feeds; The top opening part of fermentor tank is provided with triphase separator in described, and triphase separator is connected with discharge nozzle, the material that enters from opening for feed the fermentation back produces in the fermentor tank outside gas and liquid, and fermentor tank is realized Secondary Fermentation in entering by upflow tube.
2. Secondary Fermentation integral anaerobic digester according to claim 1, it is characterized in that described feeding unit is to be connected with annular supply ring by a charging house steward to form, the annular supply ring is nested with the bottom outer wall of fermentor tank outside, be connected with the some uniform feed-pipes that point to the center of circle on it, the bottom of described outer fermentor tank offers the some opening for feeds corresponding with feed-pipe, and on every feed-pipe, all have a valve be located at outside the outside of fermentor tank.
3. Secondary Fermentation integral anaerobic digester according to claim 1, it is characterized in that described splash pan is divided into splash pan and undershield, all be the fan-shaped both sides, all around that are distributed in outer fermentor tank top, and the lower end of last splash pan is higher than the lower end of undershield, and does not link to each other mutually.
4. Secondary Fermentation integral anaerobic digester according to claim 1, it is characterized in that described interior fermentor tank and the bottom of outer fermentor tank are provided with mud discharging device, described mud discharging device is to be connected with the annular row mud collar by a spoil disposal house steward to form, the annular row mud collar is placed on the bottom outside of outer fermentor tank, be connected with some outer fermentor tank shore pipes on it and feed outer fermentor tank, fermentor tank in an interior fermentor tank shore pipe feeds, valve is all arranged on the every shore pipe, and valve is positioned at the outside of outer fermentor tank.
5. Secondary Fermentation integral anaerobic digester according to claim 1 is characterized in that described upflow tube is 4 corresponding with splash pan, and the upper end of upflow tube is higher than splash pan, and the lower end of upflow tube feeds the interior fermentor tank from the bottom.
6. Secondary Fermentation integral anaerobic digester according to claim 2 is characterized in that described feed-pipe is 6, is uniformly distributed on the annular supply ring.
7. Secondary Fermentation integral anaerobic digester according to claim 4 is characterized in that described outer fermentor tank shore pipe is 6, is uniformly distributed on the annular row mud collar.
8. Secondary Fermentation integral anaerobic digester according to claim 1 is characterized in that the top of described outer fermentor tank is provided with vapor pipe, vapor pipe just in time be positioned at triphase separator directly over.
CN201210047181.4A 2012-02-28 2012-02-28 Integrated secondary-fermentation anaerobic digestion tank Active CN103288207B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106119094A (en) * 2016-08-31 2016-11-16 山东百川同创能源有限公司 A kind of marsh gas anaerobic fermentation apparatus and biogas anaerobic fermentation method
CN108083867A (en) * 2017-12-27 2018-05-29 安徽国豪农业科技有限公司 A kind of collected manure fertilizing method of Methane fermented sludge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604206A (en) * 1983-10-31 1986-08-05 Envirex Inc. Staged anaerobic reactor
CN101172737A (en) * 2007-10-17 2008-05-07 哈尔滨工程大学 Integrated high concentration difficult degradable sewage processor
CN101386449A (en) * 2008-08-20 2009-03-18 东南大学 Anaerobic reactor for processing high organic concentration and high solid content waste water
CN101875528A (en) * 2010-05-17 2010-11-03 重庆大学 Equipment and method for integrally treating sludge and household garbage in town sewage treatment plant
KR101009463B1 (en) * 2010-11-12 2011-01-19 주식회사 한텍엔지니어링 Apparatus for three phases separation in anaerobic waste water digestion facilities
CN202542943U (en) * 2012-02-28 2012-11-21 沈炳国 Secondary fermentation integrated anaerobic digestion tank

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604206A (en) * 1983-10-31 1986-08-05 Envirex Inc. Staged anaerobic reactor
CN101172737A (en) * 2007-10-17 2008-05-07 哈尔滨工程大学 Integrated high concentration difficult degradable sewage processor
CN101386449A (en) * 2008-08-20 2009-03-18 东南大学 Anaerobic reactor for processing high organic concentration and high solid content waste water
CN101875528A (en) * 2010-05-17 2010-11-03 重庆大学 Equipment and method for integrally treating sludge and household garbage in town sewage treatment plant
KR101009463B1 (en) * 2010-11-12 2011-01-19 주식회사 한텍엔지니어링 Apparatus for three phases separation in anaerobic waste water digestion facilities
CN202542943U (en) * 2012-02-28 2012-11-21 沈炳国 Secondary fermentation integrated anaerobic digestion tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106119094A (en) * 2016-08-31 2016-11-16 山东百川同创能源有限公司 A kind of marsh gas anaerobic fermentation apparatus and biogas anaerobic fermentation method
CN108083867A (en) * 2017-12-27 2018-05-29 安徽国豪农业科技有限公司 A kind of collected manure fertilizing method of Methane fermented sludge

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Address after: Room 9-5-058, No. 8, No. 20 and No. 32, Yangfan Plaza, Ningbo High-tech Zone, Zhejiang Province, 315000

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Patentee before: Shen Bingguo

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