CN101857835A - Large-sized reinforced concrete marsh-gas fermentation tank - Google Patents
Large-sized reinforced concrete marsh-gas fermentation tank Download PDFInfo
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- CN101857835A CN101857835A CN201010202467A CN201010202467A CN101857835A CN 101857835 A CN101857835 A CN 101857835A CN 201010202467 A CN201010202467 A CN 201010202467A CN 201010202467 A CN201010202467 A CN 201010202467A CN 101857835 A CN101857835 A CN 101857835A
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/26—Constructional details, e.g. recesses, hinges flexible
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/38—Caps; Covers; Plugs; Pouring means
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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 a large-sized reinforced concrete marsh-gas fermentation tank, which is of a vertical and cylindrical shape, and consists of a tank body, a flexible gas storage cabinet and a protection cover, wherein the tank body is poured by reinforced concrete, and the major part of the tank body is buried in earth. The tank body is connected with the flexible gas storage cabinet which is arranged on the top part of the tank body into a whole through a plastic plate. The protection cover is made of steel structure colorful steel plate and completely covers the part of the tank body which is arranged on the ground and the gas storage cabinet. The fermentation material after being pre-treated is directly conveyed to the bottom part of the tank body through a pump and a feeding pipe which is connected with a feeding port. The fermented material is automatically discharged from a discharging port of the upper part. The large-sized reinforced marsh-gas fermentation tank has strong corrosion resistance, high strength and long service life, greatly reduces the cost of the device, saves the investment, is convenient to feed and discharge the material, and is simple to operate.
Description
Technical field
The present invention relates to biogas fermentation device, relate in particular to a kind of large-sized biogas fermentation device made from Steel Concrete, belong to the biomass energy technology field.
Background technology
The biogas production technology and the development scale of China are all at the forefront in the world.Particularly the methane-generating pit for farm household technology has multinomial national standard.But this technology only limits to single household, is not suitable for extensive biogas production.
In recent years, big-and-middle-sized biogas engineering continues to bring out, and technology reaches its maturity, and support equipment is near international most advanced level.But most projects are for the environmental protection purpose, wherein, livestock and poultry farms in scale be excrement dirty to handle the biogas engineering of building maximum, feces of livestock and poultry becomes the main fermentation raw material of big-and-middle-sized biogas engineering.
China rural area is vast in territory, and livestock and poultry farm just is " point " and distributes.And have on " face " of abundant agricultural crop straw raw material, but seldom see big-and-middle-sized biogas engineering.
China is maximum in the world agriculture production state, calculate according to the GVG ratio, annual about more than 700,000,000 tons of all kinds of agricultural crop straws that produce of agricultural except that being used for industrial raw material such as fertilizer, feed, base-material and papermaking, have more than 300,000,000 ton of agricultural crop straw not to be used effectively approximately.Estimate that China's staple crops stalk in 2010 will reach 7.8 hundred million tons.Tempo measuring and calculating with the Eleventh Five-Year Plan period will reach about 900,000,000 tons to China's staple crops stalk in 2015, and wherein half can be used as the raw material of biomass energy.
For this reason, the national Ministry of Agriculture successively carries out with agricultural crop straw in a plurality of provinces, city be the project demonstration that main fermentation raw material is produced biogas, obtains gratifying achievement.Facts have proved that agricultural crop straw is feasible fully as the biogas fermentation raw material.
Though pilot project is achieved success, be difficult to big area, Industry Promotion.Its major cause one be invest too big, the nucleus equipment of biogas production-anaeroic digestor small scale particularly, cost height, and independently gas-holder is also expensive.The 2nd, the anaerobic digestion equipment incompatibility agricultural crop straw biogas fermentation that has shows the input and output material difficulty especially.Solve these two key technical problems and will promote the development of China's agricultural crop straw energy industry greatly.
Summary of the invention
The object of the present invention is to provide a kind of cheaply, and to adapt to agricultural crop straw be the large-sized biogas fermentation device of fermentation raw material, reduces scale of investment, promotes the development of biogas industry.
The technical solution adopted for the present invention to solve the technical problems is:
Adopt Steel Concrete and plastic material to make the large-sized biogas fermentor tank, replace the conventional steel plates material, the cost of large-sized biogas fermentor tank is reduced significantly.In the biogas production process, through pre-treatment, make it softening the agricultural crop straw raw material, adopt the pump delivery mode, solve the problem of agricultural crop straw raw material input and output material difficulty.
The volume of this large-sized reinforced concrete marsh-gas fermentation tank can reach several hectosteres to several kilosteres.
Large-sized reinforced concrete marsh-gas fermentation tank of the present invention is vertical, round tube type.Primary structure is made up of tank body, flexible gas-holder, protective guard three parts.
Cylindric tank body is built with Steel Concrete, and its major part is embedded in underground.Be welded into plastic plate linker cylindraceous, the Steel Concrete tank body is connected with the flexible gas-holder that is located at its top, sealed junction is integrated.Wrap up insulation with the plastic, thermal-insulation material near the face of land and over-ground part tank body.
Flexible gas-holder is made by flexible air storage film, can be lift, cloth bag type, hemispheric or other form.
Protective guard is made with the steel construction color steel, and the over-ground part and the flexible gas-holder of tank body all covered on wherein, plays protection and decorative effect.
Opening for feed is located at the plastic plate linker place on Steel Concrete tank body top, and the feed-pipe of its connection directes reach tank base, is equivalent to by the marsh-gas fermentation tank bottom feed.
Discharge port is located at the plastic plate linker place on Steel Concrete tank body top, and it highly is lower than the gas-liquid separation surface.The discharge port outside is provided with flow control device, and therefore, feed liquid can not arbitrarily flow out.Discharge port can be provided with one, also can be provided with a plurality of at the equal height different directions.
The biogas relief outlet is at the plastic plate linker top on Steel Concrete tank body top, below the gas-holder.
Agricultural crop straw biogas main production process:
1., with straw chopping, send into the pre-treatment jar.
2., add alkali lye in the pre-treatment jar, stalk is carried out alkaline purification, processing after finishing is discharged raffinate.
The purpose of the agricultural crop straw raw material being carried out alkaline purification is that the vegetable fibre tissue is degraded, to improve anaerobic digestion efficient and factor of created gase.Simultaneously, agricultural crop straw is softening, is convenient to use pump delivery, has solved the problem of agricultural crop straw raw material input and output material difficulty.
3., add N source, adjustment C/N.
4., add the natural pond liquid that recycles, the TS% of adjustment raw material.
5., with the fermentation raw material that the slag stock pump will be adjusted through pre-treatment and C/N, TS%, squeeze into the anaeroic digestor bottom, the feed liquid of fermenting is from the discharge port discharge on top.
6., the biogas that produces is after water trap, thionizer purify, by biogas topping-up pump input pipe network system.
Production process is taked semi-continuous input and output material mode, promptly regular, quantitatively charging and discharging.
About 40 days of anaerobic digestion process straw raw material, about 30 days of maize straw raw material.
The outstanding feature of above-mentioned production technique is:
Agricultural crop straw chopping, send in the technical process behind the pre-treatment jar, mass transport is all finished via pump and pipeline.With in the pump input anaeroic digestor, charging is very convenient through pretreated fermenting crops straws material.In the time of charging, under pumping pressure and the buoyancy function of fermentation materials own, the material that fermented is discharged voluntarily by the discharge port on tank body top.Utilize pump to adopt feed liquid round-robin mode to realize agitating function.Reduce labor intensity greatly, reduce power consumption.The mechanization degree height, the operating environment cleaning.
Beneficial effect of the present invention
It is underground, anticorrosive that but large-sized reinforced concrete marsh-gas fermentation tank major part of the present invention is embedded in, intensity height, long service life; Reduce equipment manufacturing cost significantly, reduce investment outlay; Adapting to agricultural crop straw is the biogas production of raw material, and input and output material is convenient, and is simple to operate.
Description of drawings
Accompanying drawing is the structural representation of the large-sized reinforced concrete marsh-gas fermentation tank that proposes of the present invention
The flexible gas-holder 3-of 1-Steel Concrete tank body 2-protective guard 4-plastic plate linker 5-thermal insulation layer 6-opening for feed 7-feed-pipe 8-discharge port 9-biogas relief outlet 10-liquid-gas interface 11-ground
Embodiment
With 1,000 cubic metre of biogas fermentation tank, the large-sized reinforced concrete marsh-gas fermentation tank of 470 cubic metres of flexible gas-holders is an example:
The reinforced concrete marsh-gas fermentation tank radius is 5 meters, and is high 12 meters, wherein 11 meters be embedded in underground, 1 meter on the ground.Plastic plate connects 1 meter of height.The gas-holder radius is 5 meters, and is high 6 meters.19 meters of height overalls, wherein 11 meters underground, high 8 meters on the ground.
As shown in the figure, tank body (1) is built with Steel Concrete and formed, and is most of under ground (11).
Connect by plastic plate linker (4) between the flexible gas-holder of Steel Concrete tank body (1) and lift (2), sealed junction is integrated.
Protective guard (3) is made with the steel construction color steel, and ground tank body and gas-holder are all covered on wherein.
Tightly wrap up with porous plastics near the outside of the tank body on the face of land and the ground, be thermal insulation layer (5).
Opening for feed (6) is at the plastic plate linker place on Steel Concrete tank body top, and the feed-pipe of its connection (7) directes reach tank base in tank body, be equivalent to by the marsh-gas fermentation tank bottom feed.
Discharge port (8) is located at the plastic plate linker place on Steel Concrete tank body top, and it highly is lower than liquid-gas interface (10).At the equal height different directions four discharge ports are set.
Biogas relief outlet (9) is at the plastic plate linker top on Steel Concrete tank body top, below the flexible gas-holder.
Claims (9)
1. large-sized reinforced concrete marsh-gas fermentation tank is characterized in that:
This large-sized reinforced concrete marsh-gas fermentation tank is vertical, cylindric.Primary structure is made up of tank body, flexible gas-holder, protective guard three parts.
2. according to claim 1 described large-sized reinforced concrete marsh-gas fermentation tank, it is characterized in that:
The tank body of large-sized reinforced concrete marsh-gas fermentation tank is built with Steel Concrete, and its major part is embedded in underground.Wrap up insulation with the plastic, thermal-insulation material near the face of land and over-ground part.
3. according to claim 1 described large-sized reinforced concrete marsh-gas fermentation tank, it is characterized in that:
Flexible gas-holder is located at the top of biogas fermentation tank, makes with flexible air storage film, can be lift, cloth bag type, hemispheric or other form.
4. according to claim 1 described large-sized reinforced concrete marsh-gas fermentation tank, it is characterized in that:
Connect by the plastic plate linker between Steel Concrete tank body and the flexible gas-holder, sealed junction is integrated.
5. according to claim 1 described large-sized reinforced concrete marsh-gas fermentation tank, it is characterized in that:
Protective guard is made with the steel construction color steel, and the over-ground part and the gas-holder of tank body all covered on wherein.
6. according to claim 4 described plastic plate linkers, it is characterized in that:
Plastic plate linker place between tank body and flexible gas-holder establishes opening for feed and discharge port respectively.
7. according to claim 4 described plastic plate linkers, it is characterized in that:
The biogas relief outlet is located at plastic plate linker top, flexible gas-holder below.
8. according to the claim 6 described opening for feeds of establishing at plastic plate linker place, it is characterized in that:
The feed-pipe that opening for feed connects directes reach the fermentor tank bottom in fermentor tank, be equivalent to by the tank base charging.
9. according to the claim 6 described discharge ports of establishing at plastic plate linker place, it is characterized in that:
Discharge port can be provided with one, also can be provided with a plurality of at the equal height different directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010202467A CN101857835A (en) | 2010-06-18 | 2010-06-18 | Large-sized reinforced concrete marsh-gas fermentation tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010202467A CN101857835A (en) | 2010-06-18 | 2010-06-18 | Large-sized reinforced concrete marsh-gas fermentation tank |
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| Publication Number | Publication Date |
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| CN101857835A true CN101857835A (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010202467A Pending CN101857835A (en) | 2010-06-18 | 2010-06-18 | Large-sized reinforced concrete marsh-gas fermentation tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947687A (en) * | 2017-05-06 | 2017-07-14 | 赤峰中元晟华生物燃气项目建设有限责任公司 | A kind of big-and-middle-sized marsh-gas fermentation tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062166A (en) * | 1991-12-23 | 1992-06-24 | 区裕雄 | Biogas generating device |
| CN201014179Y (en) * | 2007-02-14 | 2008-01-30 | 青岛天人环境工程有限公司 | Anaerobic, air accumulation and air storage integrated device with flexible top cover |
| CN201245660Y (en) * | 2008-08-14 | 2009-05-27 | 李晓明 | Gas collection and gas storage apparatus of methane tank |
| CN201873673U (en) * | 2010-06-18 | 2011-06-22 | 刘慧敏 | Large-sized reinforced concrete methane fermentation tank |
-
2010
- 2010-06-18 CN CN201010202467A patent/CN101857835A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062166A (en) * | 1991-12-23 | 1992-06-24 | 区裕雄 | Biogas generating device |
| CN201014179Y (en) * | 2007-02-14 | 2008-01-30 | 青岛天人环境工程有限公司 | Anaerobic, air accumulation and air storage integrated device with flexible top cover |
| CN201245660Y (en) * | 2008-08-14 | 2009-05-27 | 李晓明 | Gas collection and gas storage apparatus of methane tank |
| CN201873673U (en) * | 2010-06-18 | 2011-06-22 | 刘慧敏 | Large-sized reinforced concrete methane fermentation tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947687A (en) * | 2017-05-06 | 2017-07-14 | 赤峰中元晟华生物燃气项目建设有限责任公司 | A kind of big-and-middle-sized marsh-gas fermentation tank |
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Application publication date: 20101013 |