CN103288207B - Integrated secondary-fermentation anaerobic digestion tank - Google Patents
Integrated secondary-fermentation anaerobic digestion tank Download PDFInfo
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- CN103288207B CN103288207B CN201210047181.4A CN201210047181A CN103288207B CN 103288207 B CN103288207 B CN 103288207B CN 201210047181 A CN201210047181 A CN 201210047181A CN 103288207 B CN103288207 B CN 103288207B
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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
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 producing in food waste percolate and processing is high, and every liter of liquid COD can be up to tens0000 milligrams, cause anaerobic digestion of kitchen wastes to have some problems.General changing food waste is all through one time fermentation processing, but the natural pond liquid producing after one time fermentation, every liter of COD concentration has ten thousand milligrams of 1-2, and directly water treatment difficulty is large, and this natural pond liquid biochemical is better, can again carry out anaerobically fermenting.But existing anaerobic fermentation tank can not meet this requirement, therefore needing to design one can carry out the integrated anaerobic digestor of Secondary Fermentation and can make high concentrated organic wastewater through twice anaerobic digestion, improve organism utilization ratio, 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 for the above-mentioned state of the art, improves organism utilization ratio high, improves fermentation efficiency.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of Secondary Fermentation integral anaerobic digester, comprise tank body, it is characterized in that: described tank body comprises interior fermentor tank and outer fermentor tank, the bottom of described outer fermentor tank offers the opening for feed being connected with feeding unit, between the top of outer fermentor tank and interior fermentor tank outer wall, be provided with mud guard, mud guard top is provided with the entrance of upflow tube, and upflow tube passes into the bottom of interior fermentor tank; The upper opening place of described interior fermentor tank is provided with triphase separator, and triphase separator is connected with discharge nozzle, and gas and liquid that the material entering from opening for feed produces ferment tank outside, enter interior fermentor tank by upflow tube and realize Secondary Fermentation.
As improvement, described feeding unit is to be connected and to form with annular supply ring by a charging house steward, annular supply ring is nested with the bottom outer wall of fermentor tank outside, on it, be connected with the some uniform feed-pipes that point to the center of circle, the bottom of described outer fermentor tank offers the some opening for feeds corresponding with feed-pipe, and on every feed-pipe, all has a valve to be located at the outside of outer fermentor tank.
As improvement, described mud guard is divided into mud guard and undershield, is all the fan-shaped both sides, all around that are distributed in outer fermentor tank top, and the lower end of upper mud guard is higher than the lower end of undershield, and is not connected mutually.
As improvement, the bottom of described interior fermentor tank and outer fermentor tank is provided with mud discharging device, described mud discharging device is to be connected and to form with annular row mud collar by a spoil disposal house steward, annular row mud collar is placed on the bottom outside of outer fermentor tank, on it, be connected with some outer fermentor tank shore pipes and pass into outer fermentor tank, an interior fermentor tank shore pipe passes into interior fermentor tank, all have valve, and valve is positioned at the outside of outer fermentor tank on every shore pipe.
Improve, described upflow tube is 4 corresponding with mud guard again, and the upper end of upflow tube is higher than mud guard, and the lower end of upflow tube passes into interior fermentor tank from bottom.
Improve, described feed-pipe is 6 again, is uniformly distributed on annular supply ring.
Further improve, described outer fermentor tank shore pipe is 6, is uniformly distributed on annular row mud collar.
Finally, the top of described outer fermentor tank is provided with vapor pipe, vapor pipe be just in time 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, greatly improve organic utilization ratio, while is simple and reasonable, floor space is little, Secondary Fermentation integral anaerobic digester fermentation efficiency of the present invention is high, generation biogas speed is fast, and organism utilization ratio is high, and the lettuce of generation is lower.
Brief description of the drawings
Fig. 1 is the structural representation of the Secondary Fermentation integral anaerobic digester of the embodiment of the present invention;
Fig. 2 is the structural representation of the feeding unit of the embodiment of the present invention;
Fig. 3 is the structural representation of the mud guard of the embodiment of the present invention;
Fig. 4 is the structural representation of the mud discharging device of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
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, described tank body comprises interior fermentor tank 2 and outer fermentor tank 1, interior fermentor tank 2 is with being located in outgoing ferment tank 1, described feeding unit 3 is located at the bottom of fermentor tank 1 outside, as shown in Figure 2, to be connected and to form with annular supply ring 31 by a charging house steward 32, wherein annular supply ring 32 is nested with the lower outside of fermentor tank 1 outside, on it, be connected with 6 uniform feed-pipes 33 that point to the center of circle, on the lower sides of described outer fermentor tank 1, offer 6 opening for feeds corresponding with feed-pipe 33, and on every feed-pipe 32, all there is a valve 34 to be located at the outside of outer fermentor tank 1, can control the charging of every feed-pipe, preferably, before annular supply ring 31, vacuum breaker is housed, can prevent from flowing backwards, between the top of fermentor tank 1 and interior fermentor tank 2 outer walls, be provided with outside the mud guard of relative tilt, described mud guard is divided into mud guard 4 and undershield 5, as shown in Figure 3, upper mud guard 4 and undershield 5 are all 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 upper mud guard 4 is a little more than the lower end of undershield 5, and be not connected mutually, exist intermittently, separately be provided with upflow tube 6, make the entrance of upflow tube 6 above mud guard, described upflow tube 6 is 4 corresponding with mud guard, the upper end of upflow tube 6 is higher than mud guard, the lower end of upflow tube 6 passes into interior fermentor tank 2 from bottom, high-concentration waste water ferments in fermentor tank 1 from feed-pipe 33 enters like this, under the effect of the biogas producing, upwards flow, until encounter mud guard, on mud guard, assemble solid substance in waste water, collect agglomerating backward lower landing and form granule sludge, improve gas production rate, gas and liquid continue upwards, flow to interior fermentor tank 2 bottoms by the upflow tube 6 of mud guard top and carry out Secondary Fermentation, the upper opening place of described interior fermentor tank 2 is provided with triphase separator 7, 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 that the vapor pipe 10 that biogas passes through outer fermentor tank 1 top is discharged, 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 form sinks to tank body below, described mud discharging device 8 is located at the bottom of interior fermentor tank 2 and outer fermentor tank 1, as shown in Figure 4, to be connected and to form with annular row mud collar 81 by a spoil disposal house steward 82, annular row mud collar 82 is placed on the bottom outside of outer fermentor tank 1, on it, being connected with 6 outer fermentor tank shore pipes 83 passes in outer fermentor tank 1, an interior fermentor tank shore pipe 84 passes in interior fermentor tank 2, all have valve 85, and valve 85 is positioned at the outside of outer fermentor tank 1 on every shore pipe.
When work, high concentrated organic wastewater ferments in feeding unit enters outer fermentor tank 1, under the effect of the biogas producing, upwards flow, until encounter mud guard, on mud guard, assemble solid substance in waste water, collect agglomerating backward lower landing and form granule sludge, improve gas production rate; Gas and liquid continue upwards, flow to interior fermentor tank 2 bottoms by the upflow tube 6 of mud guard top; The material that enters interior fermentor tank 2 continues under the effect of biogas, upwards flow, this material is divided into gas, water, mud three parts by the triphase separator 7 on interior fermentor tank 2 tops, gas is that the vapor pipe 10 that biogas passes through outer fermentor tank 1 top is discharged, water is that natural pond liquid is discharged by the discharge nozzle 9 of triphase separator 7 upper ends, the granule sludge that mud form sinks to tank body below, forms the gas-producing area of producing fast biogas, and unnecessary body refuse is discharged by mud discharging device 8.
By apparatus of the present invention, high concentrated organic wastewater generation biogas speed is fast, and organism utilization ratio is high, and the lettuce of generation is lower, and specific experiment data see table, and have obtained as seen expectation effect.
High concentrated organic wastewater anaerobically fermenting data sheet (taking kitchen garbage, waste-water as example)
Claims (8)
1. a Secondary Fermentation integral anaerobic digester, comprise tank body, it is characterized in that: described tank body comprises interior fermentor tank and outer fermentor tank, the bottom of described outer fermentor tank offers the opening for feed being connected with feeding unit, between the top of outer fermentor tank and interior fermentor tank outer wall, be provided with mud guard, mud guard top is provided with the entrance of upflow tube, and upflow tube passes into the bottom of interior fermentor tank; The upper opening place of described interior fermentor tank is provided with triphase separator, and triphase separator is connected with discharge nozzle, and the material entering from opening for feed is gas and the liquid of generation fermentation in fermentor tank outside, enters interior fermentor tank realize Secondary Fermentation 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 and to form with annular supply ring by a charging house steward, annular supply ring is nested with the bottom outer wall of fermentor tank outside, on it, be connected with the some uniform feed-pipes that point to the center of circle, the bottom of described outer fermentor tank offers the some opening for feeds corresponding with feed-pipe, and on every feed-pipe, all has a valve to be located at the outside of outer fermentor tank.
3. Secondary Fermentation integral anaerobic digester according to claim 1, it is characterized in that described mud guard is divided into mud guard and undershield, all be the fan-shaped both sides, all around that are distributed in outer fermentor tank top, and the lower end of upper mud guard is higher than the lower end of undershield, and be not connected mutually.
4. Secondary Fermentation integral anaerobic digester according to claim 1, the bottom that it is characterized in that described interior fermentor tank and outer fermentor tank is provided with mud discharging device, described mud discharging device is to be connected and to form with annular row mud collar by a spoil disposal house steward, annular row mud collar is placed on the bottom outside of outer fermentor tank, on it, be connected with some outer fermentor tank shore pipes and pass into outer fermentor tank, an interior fermentor tank shore pipe passes into interior fermentor tank, on every shore pipe, all have valve, 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 mud guard, and the upper end of upflow tube is higher than mud guard, and the lower end of upflow tube passes into interior fermentor tank from bottom.
6. Secondary Fermentation integral anaerobic digester according to claim 2, is characterized in that described feed-pipe is 6, is uniformly distributed on 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 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 be just in time positioned at triphase separator directly over.
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| CN201210047181.4A CN103288207B (en) | 2012-02-28 | 2012-02-28 | Integrated secondary-fermentation anaerobic digestion tank |
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| CN201210047181.4A CN103288207B (en) | 2012-02-28 | 2012-02-28 | Integrated secondary-fermentation anaerobic digestion tank |
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| 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 |
| CN115725389A (en) * | 2022-11-23 | 2023-03-03 | 东莞市巴能检测技术有限公司 | Two-section type anaerobic digestion biogas production process device |
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| US4604206A (en) * | 1983-10-31 | 1986-08-05 | Envirex Inc. | Staged anaerobic reactor |
| CN100540487C (en) * | 2007-10-17 | 2009-09-16 | 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 |
| CN101875528B (en) * | 2010-05-17 | 2012-06-06 | 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 |
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Effective date of registration: 20181127 Address after: Room 9-5-058, No. 8, No. 20 and No. 32, Yangfan Plaza, Ningbo High-tech Zone, Zhejiang Province, 315000 Patentee after: Zhejiang Yixing Environmental Protection Technology Co., Ltd. Address before: Room 208, No. 15, 148 Lane, Yunxia Road, Haishu District, Ningbo City, Zhejiang Province Patentee before: Shen Bingguo |