CN102234605A - Bent-pipe large-sized plastic anaerobic digester - Google Patents
Bent-pipe large-sized plastic anaerobic digester Download PDFInfo
- Publication number
- CN102234605A CN102234605A CN2010101652786A CN201010165278A CN102234605A CN 102234605 A CN102234605 A CN 102234605A CN 2010101652786 A CN2010101652786 A CN 2010101652786A CN 201010165278 A CN201010165278 A CN 201010165278A CN 102234605 A CN102234605 A CN 102234605A
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- Prior art keywords
- bent
- plastic
- anaerobic digester
- anaeroic digestor
- tube boiler
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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
- C12M23/02—Form or structure of the vessel
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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
- C12M23/02—Form or structure of the vessel
- C12M23/18—Open ponds; Greenhouse type or underground installations
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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
- C12M23/20—Material Coatings
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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
Abstract
The invention discloses a bent-pipe large-sized plastic anaerobic digester. The anaerobic digester is in a shape of a circular pipe; most part of the anaerobic digester is buried into the ground; the anaerobic digester has a gradient of 3-5 percent from bottom to top; a ground part has a vertical barrel structure; an included angle between an underground part and the ground part is more than 90 degrees; a feeding pipe passes through an underground soil layer and is used for feeding a pretreated fermentation material from the bottom of the anaerobic digester into the anaerobic digester; the fermented material is discharged from a discharging hole above the ground; marsh gas is exhausted from a top marsh gas outlet; a main body of the anaerobic digester is formed by welding plastic plates; and other material conveying pipelines such as a feeding pipeline, a discharging pipeline and the like are plastic pipes. The bent-pipe large-sized plastic anaerobic digester disclosed by the invention is resistant to acid, alkali and corrosion and has high intensity, long service life, high insulating performance and high safety performance; and the equipment manufacturing cost is reduced greatly and the investment is saved.
Description
Technical field
The present invention relates to anaerobic digestion device, relate in particular to a kind of large-scale anaeroic digestor made from plastic material of bent-tube boiler, 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 subject matter is the equipment manufacturing cost height, and investment is big.
The key problem in technology of big-and-middle-sized biogas engineering is anaerobic digestion.Tradition anaerobic digestion equipment mostly is vertical digester or horizontal fermentation vat, makes of steel plate, or builds the cost height with Steel Concrete.This is to cause the big major reason of biogas engineering investment.
At present, the biogas facility manufacturing enterprise that has releases plastic material biogas jars such as red-sludge plastic, glass reinforced plastic or PVC.These products all are the substitute of rural area concrete domestic methane tank, and are simple in structure, and volume is little, have only several to tens cubic metres, big only tens cubic metres, can not large-scale production biogas.
Summary of the invention
The object of the present invention is to provide a kind of cheap large-scale anaerobic digestion device, reduce the scale of investment of large-sized biogas engineering, promote the development of agricultural crop straw biogas industry.
The technical solution adopted for the present invention to solve the technical problems is:
Adopt plastic material to make the large-scale anaeroic digestor of bent-tube boiler, replace the vertical digester of traditional steel plate manufacturing or the horizontal fermentation vat that Steel Concrete is made.
The plastic material strength height, plasticity, good toughness have good weldability and erosion resistance.Be suitable for making tubulose, be embedded in underground.Cheap, long service life is better than steel and Steel Concrete fermentation equipment.
The volume of the big plastic anaeroic digestor of this bent-tube boiler can reach several hectosteres to several kilosteres.
The big plastic anaeroic digestor of bent-tube boiler of the present invention is the pipe shape.Its most of accumbency shallow embedding goes out low side to high-end 3%～5% the gradient that is underground, helps biogas and discharges.Over-ground part is a vertical and cylindrical.Underground and on the ground two-part angle greater than 90 °.
Biogas is produced in the anaerobic digestion of the big plastic anaeroic digestor of bent-tube boiler particularly suitable agricultural crop straw.Agricultural crop straw contains a large amount of fibers, and fibrocyte mostly is hollow shape, and air is contained in the inside, is in levitated state in the liquid of natural pond.During from underfeed, the upwards drift automatically of stalk fermentation material.
Feed-pipe passes underground soil layer, will send anaeroic digestor to through pretreated fermentation materials by the anaeroic digestor bottom.Material after the fermentation is discharged by ground discharge port.The biogas that produces is discharged by the methane outlet at top.
The main body of the big plastic anaeroic digestor of bent-tube boiler is welded as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), vinyl cyanide, divinyl and styrene polymer (ABS), nylon sheet materials such as (PA) by plastic plate.Wherein PE and PP sheet material are the most economical and the most practical.
Other is plastic pipe as material conveying pipes such as charging, dischargings.
Beneficial effect of the present invention
The big plastic anaeroic digestor of bent-tube boiler of the present invention acid and alkali-resistance, anticorrosive, the intensity height, long service life reduces equipment manufacturing cost significantly, reduces investment outlay.Because it is underground that major part is embedded in, over-ground part is short, good heat insulating, lightning-arrest, fire prevention, safety performance height.
Description of drawings
Accompanying drawing is the structural representation of the big plastic anaeroic digestor of bent-tube boiler that proposes of the present invention
The big plastic anaeroic digestor of 1-bent-tube boiler is embedded in the over-ground part 3-feed-pipe 4-discharge port 5-methane outlet 6-liquid-gas interface 7-ground 8-soil layer of the big plastic anaeroic digestor of underground part 2-bent-tube boiler among the figure
Embodiment
With a big plastic anaeroic digestor of 1,000 cubic metre of volumetrical bent-tube boiler is example:
As shown in the figure, the big plastic anaeroic digestor of bent-tube boiler diameter is 5 meters; Long 49 meters of underground part (1), upstanding portion is high 1 meter; Over-ground part (2) is high 2 meters; 52 meters of total lengths.
High-end (7) 1 meters of underground part (1) apart from ground, (7) 2.5 meters of low sides, the gradient 3% apart from ground.
Fermentation materials passes underground soil layer (8) through feed-pipe (3), enters anaeroic digestor by low side.Material after the fermentation is discharged by ground discharge port (4).Biogas is discharged by top biogas mouth (5).
The main body of the big plastic anaeroic digestor of bent-tube boiler is welded with low-pressure high-density polyethylene (PE) sheet material.Other is the PE plastic pipe as material conveying pipes such as charging, dischargings.
Claims (5)
1. big plastic anaeroic digestor of bent-tube boiler is characterized in that:
The big plastic anaeroic digestor of bent-tube boiler is the pipe shape.
2. according to the big plastic anaeroic digestor of claim 1 described bent-tube boiler, it is characterized in that:
The most of accumbency shallow embedding of the big plastic anaeroic digestor of bent-tube boiler is underground, by low side to high-end 3%～5% the gradient that is.Over-ground part is upright round shape.The angle of the underground part that links to each other with the ground is greater than 90 °.
3. the big plastic anaeroic digestor of bent-tube boiler according to claim 1 is characterized in that:
The big plastic anaeroic digestor of bent-tube boiler feed-pipe passes soil layer, will send anaeroic digestor to through pretreated fermentation materials by the bottom of underground anaeroic digestor.Material after the fermentation is discharged by ground discharge port.The biogas that produces is discharged by the methane outlet at top.
4. the big plastic anaeroic digestor of bent-tube boiler according to claim 1 is characterized in that:
It is to make with plastic material.
5. the large-scale anaeroic digestor made from plastic material of bent-tube boiler according to claim 4 is characterized in that:
The big plastic anaeroic digestor of bent-tube boiler main body is welded with plastic plate.
Other is plastic pipe as material conveying pipes such as charging, dischargings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101652786A CN102234605A (en) | 2010-05-07 | 2010-05-07 | Bent-pipe large-sized plastic anaerobic digester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101652786A CN102234605A (en) | 2010-05-07 | 2010-05-07 | Bent-pipe large-sized plastic anaerobic digester |
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| Publication Number | Publication Date |
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| CN102234605A true CN102234605A (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101652786A Pending CN102234605A (en) | 2010-05-07 | 2010-05-07 | Bent-pipe large-sized plastic anaerobic digester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964036A (en) * | 2012-12-10 | 2013-03-13 | 湖南永清水务有限公司 | Rural sewage anaerobe tube treatment process and device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451580Y (en) * | 2000-09-30 | 2001-10-03 | 刘经平 | Diagonal flow methane tank |
| CN2668629Y (en) * | 2004-01-15 | 2005-01-05 | 刘华美 | Steel mould of domestic integral methane tank in countryside |
| CN2808895Y (en) * | 2005-01-20 | 2006-08-23 | 邓小波 | Marsh gas generation device made of fiberglass reinforced plastic |
| CN2913369Y (en) * | 2006-01-23 | 2007-06-20 | 吴桂龙 | Simply high effective hydraulic pressure type methane tank |
| CN2923711Y (en) * | 2005-12-06 | 2007-07-18 | 李长生 | Horizontal mechanical methane agitation apparatus |
| CN200985331Y (en) * | 2006-12-26 | 2007-12-05 | 山东济南众智环保科创研发联盟会 | Sewage gas generating device with self-sealing type feeding and gas-collecting device |
| CN201021452Y (en) * | 2007-03-15 | 2008-02-13 | 付开敏 | Methane pool for tunnel automatic extension in and out material |
| CN201024172Y (en) * | 2007-03-22 | 2008-02-20 | 邓世超 | Automatic tapping methane tank |
| CN201033783Y (en) * | 2007-05-23 | 2008-03-12 | 南京工业大学 | Double-discharging polypropylene methane tank |
| CN101509015A (en) * | 2009-03-19 | 2009-08-19 | 农业部沼气科学研究所 | Upthrust flow stalk marsh gas fermentation process and apparatus |
| CN201433215Y (en) * | 2009-08-18 | 2010-03-31 | 张小虎 | Piston type constant pressure methane tank |
-
2010
- 2010-05-07 CN CN2010101652786A patent/CN102234605A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451580Y (en) * | 2000-09-30 | 2001-10-03 | 刘经平 | Diagonal flow methane tank |
| CN2668629Y (en) * | 2004-01-15 | 2005-01-05 | 刘华美 | Steel mould of domestic integral methane tank in countryside |
| CN2808895Y (en) * | 2005-01-20 | 2006-08-23 | 邓小波 | Marsh gas generation device made of fiberglass reinforced plastic |
| CN2923711Y (en) * | 2005-12-06 | 2007-07-18 | 李长生 | Horizontal mechanical methane agitation apparatus |
| CN2913369Y (en) * | 2006-01-23 | 2007-06-20 | 吴桂龙 | Simply high effective hydraulic pressure type methane tank |
| CN200985331Y (en) * | 2006-12-26 | 2007-12-05 | 山东济南众智环保科创研发联盟会 | Sewage gas generating device with self-sealing type feeding and gas-collecting device |
| CN201021452Y (en) * | 2007-03-15 | 2008-02-13 | 付开敏 | Methane pool for tunnel automatic extension in and out material |
| CN201024172Y (en) * | 2007-03-22 | 2008-02-20 | 邓世超 | Automatic tapping methane tank |
| CN201033783Y (en) * | 2007-05-23 | 2008-03-12 | 南京工业大学 | Double-discharging polypropylene methane tank |
| CN101509015A (en) * | 2009-03-19 | 2009-08-19 | 农业部沼气科学研究所 | Upthrust flow stalk marsh gas fermentation process and apparatus |
| CN201433215Y (en) * | 2009-08-18 | 2010-03-31 | 张小虎 | Piston type constant pressure methane tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964036A (en) * | 2012-12-10 | 2013-03-13 | 湖南永清水务有限公司 | Rural sewage anaerobe tube treatment process and device |
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Application publication date: 20111109 |