CN201873673U - Large-sized reinforced concrete methane fermentation tank - Google Patents

Large-sized reinforced concrete methane fermentation tank Download PDF

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Publication number
CN201873673U
CN201873673U CN2010202283089U CN201020228308U CN201873673U CN 201873673 U CN201873673 U CN 201873673U CN 2010202283089 U CN2010202283089 U CN 2010202283089U CN 201020228308 U CN201020228308 U CN 201020228308U CN 201873673 U CN201873673 U CN 201873673U
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reinforced concrete
tank body
fermentation tank
gas
sized reinforced
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CN2010202283089U
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刘慧敏
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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
    • 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
    • C12M23/02—Form or structure of the vessel
    • C12M23/18—Open ponds; Greenhouse type or underground installations
    • 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
    • C12M23/20—Material Coatings
    • 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
    • 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
    • C12M23/36—Means for collection or storage of gas; Gas holders
    • 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
    • C12M23/38—Caps; Covers; Plugs; Pouring means
    • 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 utility model provides a large-sized reinforced concrete methane fermentation tank, which adopts a vertical cylinder type, and comprises three parts, namely a tank body, a flexible gas storage cabinet and a protective cover, wherein the tank body is cast by reinforced concrete, and most of the tank body is buried under the ground; the tank body and the flexible gas storage cabinet arranged at the top part of the tank body are connected into a whole through plastic sheet materials; the protective cover is made of a color steel plate of steel structure, and covers both the aboveground part of the tank body and the gas storage cabinet; pretreated fermentation materials are directly conveyed to the bottom part of the tank body by a pump through a feed inlet and a feed pipe connected with the feed inlet; and fermented materials are automatically discharged through a discharge outlet of the upper part of the tank body. The large-sized reinforced concrete methane fermentation tank resists corrosion, has high strength and long service life, greatly reduces the production cost of equipment, saves investment, is convenient to feed and discharge materials, and is simple to operate.

Description

A kind of large-sized reinforced concrete marsh-gas fermentation tank
Technical field
The utility model relates to biogas fermentation device, relates in particular to a kind of large-sized biogas fermentation device made from Steel Concrete, belongs 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
It is a kind of cheap that the purpose of this utility model is to provide, 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 scheme that its technical problem that solves the utility model adopts 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 utility model 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.
The beneficial effects of the utility model
It is underground, anticorrosive that but large-sized reinforced concrete marsh-gas fermentation tank major part of the present utility model 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, and primary structure is made up of tank body, flexible gas-holder, protective guard three parts.
2. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 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, wraps up insulation with the plastic, thermal-insulation material near the face of land and over-ground part.
3. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 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.
4. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 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. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 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. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 is characterized in that:
Plastic plate linker place between tank body and flexible gas-holder establishes opening for feed and discharge port respectively.
7. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 is characterized in that:
The biogas relief outlet is located at plastic plate linker top, flexible gas-holder below.
8. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 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. large-sized reinforced concrete marsh-gas fermentation tank according to claim 1 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.
CN2010202283089U 2010-06-18 2010-06-18 Large-sized reinforced concrete methane fermentation tank Expired - Fee Related CN201873673U (en)

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CN2010202283089U CN201873673U (en) 2010-06-18 2010-06-18 Large-sized reinforced concrete methane fermentation tank

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CN2010202283089U CN201873673U (en) 2010-06-18 2010-06-18 Large-sized reinforced concrete methane fermentation tank

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857835A (en) * 2010-06-18 2010-10-13 刘慧敏 Large-sized reinforced concrete marsh-gas fermentation tank
CN103756870A (en) * 2013-12-31 2014-04-30 江苏元洲生物工程有限公司 Fermentation tank for research and teaching
CN109777728A (en) * 2019-02-15 2019-05-21 安徽科技学院 A kind of buried installation for fermenting of agricultural stalk recycling

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857835A (en) * 2010-06-18 2010-10-13 刘慧敏 Large-sized reinforced concrete marsh-gas fermentation tank
CN103756870A (en) * 2013-12-31 2014-04-30 江苏元洲生物工程有限公司 Fermentation tank for research and teaching
CN103756870B (en) * 2013-12-31 2016-02-24 江苏元洲生物工程有限公司 Research and teaching fermentor tank
CN109777728A (en) * 2019-02-15 2019-05-21 安徽科技学院 A kind of buried installation for fermenting of agricultural stalk recycling
CN109777728B (en) * 2019-02-15 2022-02-01 安徽科技学院 Bury formula fermenting installation agricultural straw recycles

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Granted publication date: 20110622

Termination date: 20120618