CN100443427C - Gas generation-storage integral anaerobic zymosis device - Google Patents
Gas generation-storage integral anaerobic zymosis device Download PDFInfo
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- CN100443427C CN100443427C CNB2007100672704A CN200710067270A CN100443427C CN 100443427 C CN100443427 C CN 100443427C CN B2007100672704 A CNB2007100672704 A CN B2007100672704A CN 200710067270 A CN200710067270 A CN 200710067270A CN 100443427 C CN100443427 C CN 100443427C
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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 invention relates to an gas production and gas storage integrated anaerobic fermentation device which needs to solve the problems of reducing the manufacturing costs of fermentation device top, improving the heat preservation, stabilizing the gas supply and enhancing the gas production by fermentation. The fermentation device has a tank volume which is characterized in that: the top of the tank has a flexible storage gas film; a storage gas chamber is disposed between the storage gas film and materiel surface; pressure film is out of the storage gas film; a gas-tight chamber is formed between two films; the gas-tight chamber connects to the pressure device. The tank volume has a blender at lower part, and a backflow device with a pump on the body. The upper mouth of the backflow pipe is higher than the material surface.
Description
Technical field
The present invention relates to a kind of gas generation-storage integral anaerobic zymosis device, be particularly useful for the processing of plant's biogas engineering middle and high concentration livestock and poultry feces.
Background technology
At present, in plant's biogas engineering, handle reactor for treatment liquid dung concentration TS＜8% of livestock and poultry feces, when livestock and poultry feces concentration is brought up to TS 8～12%, mass transfer is affected in the fermented feed liquid, the dead band occurs, acidifying easily, and follow phenomenons such as scum silica frost, crust, influence the digestive efficiency of reactor.And, in biogas engineering, except that above-mentioned reactor, also need build gas-holder to store the biogas that produces, make that project floor space and investment are all bigger.
Chinese patent literature CN2102433U discloses a kind of " production and use of marsh gas is built pond automatic pressure regulation accumulator unit ", and this accumulator unit has the pond body of a band dog-house and liquid outlet, and vaulted cover of left-hand thread has methane outlet and transfers heavily ring on the cover.When biogas output big (little), (descend) on the vaulted cover and float with air storage.Though this device has realized that the aerogenesis air storage is integrated, still can not solve phenomenons such as dead band, acidifying, scum silica frost, crust occur.
Summary of the invention
The present invention need deal with problems, and reduces the manufacturing cost of fermentation unit, improves heat-insulating property, and air feed is more stable.
The present invention also needs to solve technical problems such as the easy acidifying that occurs in the fermentation unit, scum silica frost, crust in handling high density livestock and poultry feces process.
Gas generation-storage integral anaerobic zymosis device of the present invention, the tank body that band opening for feed, discharge port, slag-drip opening and a methane outlet are arranged, it is characterized in that described tank deck has flexible air storage film, form gas dome between air storage film and the feed liquid plane, the air storage film has flexible supercharging film outward, form airtight chamber between the two membranes, airtight chamber is communicated with supercharging device.Wherein, supercharging device is made up of topping-up pump and pressure release valve.
Film formed pair of membrane structure of tank deck air storage film and supercharging has following advantage: the one, and adopt flexible air storage top can reduce the use of heavy material, not only reduced cost, also help maintenance and maintenance.The 2nd, two membrane structure thermal conductivities are low, help tank body insulation and fermentation; Can charge into warm air in case of necessity to improve the tank body temperature.The 3rd, charge into pressurized air in the double membrane structure, can guarantee that the biogas pressure in the gas dome meets the demands, send into the next stage unit by pipeline.
As preferably, the tank body bottom is provided with agitator; Tank body is provided with the reflux of band pump, and the return line feed liquid plane that is higher than suitable for reading sprays active anaerobic sludge to scum layer, helps solving the crust problem.The configuration agitator can provide the abundant stirring of horizontal direction, and the reflux of band pump has then increased the vertical direction stirring, thereby has strengthened the stirring and the mass transfer of feed liquid in the fermentation unit greatly, has effectively avoided phenomenons such as dead band, acidifying, scum silica frost, crust.
As preferably, methane outlet is parallel with Safety water seal, and the negative pressure that produces in the time of can avoiding deslagging is to the infringement of fermentation unit.
Tank base can be flat, and tank base also can be recessed, helps improving the mixing effect of agitator, also helps in the solid slag class set, discharges.
The invention has the beneficial effects as follows: the manufacturing cost of fermentation unit tank deck is lower, and heat-insulating property is better, and air feed is more stable; And having solved problems such as dead band, acidifying, scum silica frost, crust in the fermentation unit, fermentation gas efficient is higher.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of fermentation unit of the present invention;
Fig. 2 is an A portion enlarged diagram among Fig. 1.Wherein:
The 1-opening for feed, the 2-discharge port, the 3-slag-drip opening, the 4-methane outlet,
The 5-tank body, 6-air storage film, the 7-gas dome, 8-supercharging film,
The 9-supercharging device, the 10-agitator, the 11-reflux, the 12-Safety water seal,
The 13-press strip, 14-bolt, 15-stadimeter probe, 16-bead; Sealing plate 17.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described further.
Embodiment 1.As shown in Figure 1, gas generation-storage integral anaerobic zymosis device of the present invention has the cylindrical tank 5 of a PVC composite membrane, and tank body is provided with opening for feed 1, discharge port 2, slag-drip opening 3 and methane outlet 4, and methane outlet is parallel with Safety water seal 12.The tank deck outermost is that the hemispherical supercharging film 8 of PVC composite membrane forms the spherical crown top; The spherical crown top is connected with the mouth of pipe of supercharging device 9, and the spherical crown top also is provided with stadimeter probe 15.The flexible air storage film 6 of PVC composite membrane is arranged in the spherical crown top, form sealing chamber between the two membranes.The upper edge hole 16 of tank body 5 has the annular fastening press strip 13 that matches, and bolt 14 passes compact heap air storage film 6 and supercharging film 8 are pressed on the bead by sealing plate 17, reaches airtight (see figure 2).Form gas dome 7 between air storage film and the feed liquid plane.The bottom of tank body 5 is provided with agitator 10.Tank body 5 is provided with the reflux 11 of band pump, the return line feed liquid plane that is higher than suitable for reading, and the return line end opening is located at active digested sludge layer.
Fermentation unit of the present invention mainly is made up of following three operational systems:
(1) charging and discharging system.Mainly comprise opening for feed 1, discharge port 2 and slag-drip opening 3.
(2) stirring system.Mainly comprise agitator 10 and reflux 11.
(3) air storage system.Mainly comprise tank body 5, methane outlet 4, air storage film 6, gas dome 7, supercharging film 8, supercharging device 9; Safety water seal 12 and stadimeter probe 15.
The present invention generally takes the mode of intermittent feeding.Fermentation raw material enters tank body 5 through opening for feed 1, and meanwhile, the supernatant liquor in the tank body 5 is discharged by discharge port 2.Charging stage begins feed liquid is stirred after finishing.Agitator 10 is started working, and realizes fermented feed liquid horizontal direction uniform mixing and fully contacts, the vertical direction thorough mixing of fermented feed liquid in the backflow of reflux 11 and recoil effect realization jar.Like this, under above-mentioned horizontal direction stirring and mud backflow dual function, fermented feed liquid fully contacts with the interior microorganism of reactor, in this process, a series of processes such as methane are finished and produce acid, produced to organism in the feed liquid under action of microorganisms, finally be converted into methane and carbonic acid gas, promptly form biogas.
The biogas that said process produced enters in the gas dome 7 on fermentation unit top and stores.Outer supercharging film 8 has anti-ultraviolet function, and internal layer air storage film 6 has the anti-leak function.Airtight between outer supercharging film 8 and the internal layer air storage film 6, topping-up pump 9 charges into pressurized air, and the supercharging film is filled into fixed spherical crown top, and pressure release valve is opened when pressure surpasses, to keep the stable of gas dome pressure.The height of air storage film 6 can float with biogas pressure size in the gas dome (amount how much), and it can be recorded by the stadimeter probe 15 at spherical crown top, to determine the biogas amount in the gas dome 7.
In anaerobic fermentation process, be accompanied by organic continuous degraded, microorganism self also constantly breeds, and sludge quantity also is on the increase in the fermentation unit.In addition, in livestock and poultry feces, often contain the recess that a small amount of sand also can be deposited on the fermentation unit bottom.These mud and a small amount of sand setting guarantee the useful volume and the reaction efficiency of fermentation unit by outside the slag-drip opening 3 regular dischargers.Because methane outlet 4 is parallel with Safety water seal 12, can guarantee that deslagging carries out smoothly.
Embodiment 2.This routine fermentation unit tank base is recessed, and all the other are with example 1.
Claims (6)
1, a kind of gas generation-storage integral anaerobic zymosis device, the tank body (5) that band opening for feed (1), discharge port (2), slag-drip opening (3) and a methane outlet (4) are arranged, it is characterized in that described tank deck has flexible air storage film (6), form gas dome (7) between flexible air storage film and the feed liquid plane, flexible air storage film has flexible supercharging film (8) outward, form airtight chamber between flexible air storage film and the flexible supercharging film two membranes, airtight chamber is communicated with supercharging device (9); Described tank body (5) bottom is provided with agitator (10); Tank body (5) is provided with the reflux (11) of band pump, the return line feed liquid plane that is higher than suitable for reading.
2, integral anaerobic fermentation unit according to claim 1, the upper edge hole (16) that it is characterized in that described tank body (5) has the press strip (13) that matches, accompany flexible air storage film (6) and flexible supercharging film (8) between upper edge hole and the compact heap, compact heap is fixed on the upper edge hole by bolt (14).
3, integral anaerobic fermentation unit according to claim 2 is characterized in that described press strip (13) is annular or the fastening press strip of Polygons.
4,, it is characterized in that described methane outlet (4) is parallel with Safety water seal (12) according to claim 1 or 2 or 3 described integral anaerobic fermentation units.
5,, it is characterized in that described flexible supercharging film (8) is provided with stadimeter probe (15) according to claim 1 or 2 or 3 described integral anaerobic fermentation units.
6, integral anaerobic fermentation unit according to claim 4 is characterized in that described flexible supercharging film (8) is provided with stadimeter probe (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100672704A CN100443427C (en) | 2007-02-14 | 2007-02-14 | Gas generation-storage integral anaerobic zymosis device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100672704A CN100443427C (en) | 2007-02-14 | 2007-02-14 | Gas generation-storage integral anaerobic zymosis device |
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| CN101037288A CN101037288A (en) | 2007-09-19 |
| CN100443427C true CN100443427C (en) | 2008-12-17 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092847B (en) * | 2010-12-29 | 2012-02-22 | 黑龙江省科学院科技孵化中心 | Secondary anaerobic digestion device for sewage treatment of cattle farm |
| CN102604816B (en) * | 2011-01-24 | 2015-07-15 | 北京中源创能工程技术有限公司 | Integrated solid-material two-phase methane fermentation reactor and method for preparing methane by using same |
| CN102155966B (en) * | 2011-03-30 | 2012-06-27 | 黑龙江省科学院科技孵化中心 | Method for measuring marsh gas reserve in anaerobic fermenting tank and device for implementing method |
| CN102690754A (en) * | 2012-06-20 | 2012-09-26 | 鄂尔多斯市东胜区传祥垃圾处理有限责任公司 | Combined anaerobic fermentation tank |
| CN103395956A (en) * | 2013-08-23 | 2013-11-20 | 哈尔滨北方环保工程有限公司 | Gas-storage-type anaerobic tank and method for treating dung and dirt of domestic animals by using same |
| CN103435242B (en) * | 2013-08-30 | 2014-09-24 | 哈尔滨北方环保工程有限公司 | Manufacturing method of sludge anaerobic digestion reaction tank, and sludge anaerobic digestion reaction tank obtained by utilizing method |
| CN106517717A (en) * | 2016-12-30 | 2017-03-22 | 曲阜七星沼气科技发展有限公司 | Solar-energy warming type parallel methane generation system |
| CN109337799B (en) * | 2018-11-06 | 2023-08-25 | 胡小鹤 | Integrated anaerobic fermentation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4274838A (en) * | 1979-10-01 | 1981-06-23 | Energy Harvest, Inc. | Anaerobic digester for organic waste |
| EP0144213A2 (en) * | 1983-11-30 | 1985-06-12 | Clearfield N.V. | Digester and its use |
| CN2095198U (en) * | 1991-03-14 | 1992-02-05 | 西安市未央区能源办公室 | Automatic circulating methane-generating pit |
| CN2647851Y (en) * | 2003-09-05 | 2004-10-13 | 福建省农业科学院地热农业利用研究所 | Methane generator |
| CN2688697Y (en) * | 2004-03-22 | 2005-03-30 | 张万俊 | Oblate spheroid plastic sludge gas pool |
-
2007
- 2007-02-14 CN CNB2007100672704A patent/CN100443427C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4274838A (en) * | 1979-10-01 | 1981-06-23 | Energy Harvest, Inc. | Anaerobic digester for organic waste |
| EP0144213A2 (en) * | 1983-11-30 | 1985-06-12 | Clearfield N.V. | Digester and its use |
| CN2095198U (en) * | 1991-03-14 | 1992-02-05 | 西安市未央区能源办公室 | Automatic circulating methane-generating pit |
| CN2647851Y (en) * | 2003-09-05 | 2004-10-13 | 福建省农业科学院地热农业利用研究所 | Methane generator |
| CN2688697Y (en) * | 2004-03-22 | 2005-03-30 | 张万俊 | Oblate spheroid plastic sludge gas pool |
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