CN101270331A - Non-pressure biogas generating pit - Google Patents

Non-pressure biogas generating pit Download PDF

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Publication number
CN101270331A
CN101270331A CNA2008100159578A CN200810015957A CN101270331A CN 101270331 A CN101270331 A CN 101270331A CN A2008100159578 A CNA2008100159578 A CN A2008100159578A CN 200810015957 A CN200810015957 A CN 200810015957A CN 101270331 A CN101270331 A CN 101270331A
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China
Prior art keywords
generating pit
methane
plastic
plastic cover
plastics
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Pending
Application number
CNA2008100159578A
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Chinese (zh)
Inventor
周升阳
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Individual
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Individual
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Priority to CNA2008100159578A priority Critical patent/CN101270331A/en
Publication of CN101270331A publication Critical patent/CN101270331A/en
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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
    • C12M23/26—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
    • 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
    • C12M23/56—Floating elements
    • 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
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/18—Flow directing inserts
    • C12M27/22—Perforated plates, discs or walls
    • 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
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/14—Drying
    • 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
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/18—Gas cleaning, e.g. scrubbers; Separation of different gases
    • 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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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Clinical Laboratory Science (AREA)
  • Molecular Biology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention provides an agitation-free, low cost and usable non-pressure methane tank without breaking culms. The upper cover of the methane tank designed by the invention is made of soft plastic. The length and the width of the soft plastic cover film are larger than the length and the width of the methane tank by three meters. Culms can be directly added to fermentation liquid without being broken. After the culms are fed, settling blocks are arranged around the soft plastic cover so that the plastic cover sinks into the methane fermentation liquid; an air pump is used to pump air outside; under atmospheric pressure, floating culms are pressed into the fermentation liquid, and the air inside the soft plastic cover film is completely pumped out; the methane produced in the methane tank is dehydrolyzed through a moisture separator, and desulphurized through a devulcanizer, and is pressed into a gas collector after the methane is pumped out by the air pump.

Description

Non-pressure biogas generating pit
Technical field
The present invention relates to a kind of biogas fermentation device, specifically is a kind of non-pressure biogas generating pit.
Background technology
In recent years, country is very big to the support dynamics of development biogas, and many hydraulic type biomass pools have been built in some remote Rural areass, its pond body almost spherical, less, the depended on pressure difference discharging of volume; If use stalk fermentation, stalk is inserted in the methane-generating pit after needing to pulverize, stirring, and fermentation reaction is not steady, the easy corrosion air-leakage of pond body, and maintenance is inconvenient; Cause most of methane-generating pit to stop using, scrap.
Summary of the invention
The present invention overcomes the defective on the prior art, the non-pressure biogas generating pit of provide a kind of stalk to exempt to pulverize, exempt to stir, cost is low, easy to use.
The methane-generating pit loam cake of the present invention's design is made up of the software plastics, the length of software plastics epiphragma and width are bigger about 3 meters than the length and the width of methane-generating pit, stalk need not be pulverized in the direct adding fermented liquid, and the precipitation piece that adds on every side that adds material back software plastic cover sinks in the biogas fermentative liquid plastic cover; Outwards bleed with vacuum fan, under atmospheric effect, the buoyant stalk just is pressed in the fermented liquid, and software plastics epiphragma gas inside is also pumped, the biogas that produces is pressed in the gas-holder after vacuum fan is extracted out through moisture separator dehydration, devulcanizer desulfurization again.
Description of drawings:
Accompanying drawing is a methane-generating pit user mode synoptic diagram
Embodiment
Be further elaborated below in conjunction with accompanying drawing and specific examples:
Referring to accompanying drawing: embodiment:
Dig the marsh gas fermentation pool 1 of a rectangular parallelepiped, with brick the pond of digging is built, after being built into, with the floating press polish of cement, to exceed ground level 2 about 20-30 centimetres above the pond, avoid rainwater to pour in the pond, will spread with brick at the bottom of the pond, use the floating press polish of cement again, maintain after 7 days, if the leak test of pouring water is after filling water, it is normal descending in 2 hours less than 10 centimetres, otherwise for leaking the pond.Feed in raw material after finishing building the pond, if dropping into fermented product is stalk, add urea, regulating carbon-nitrogen ratio reaches about 25: 1, in methane-generating pit, add the part biogas fermentative liquid again, in the middle of the body of pond, put plastic foamboard 3, plastic foamboard 3 swims in body middle part, pond, put the plastics tubing 4 of " worker " font above the plastic foamboard 3, the four-head of plastics tubing 4 does not seal, airway 5 is connected with " worker " font plastics tubing 4, airway 5 is made by the steel wire plastics flexible pipe that can bear negative pressure, ready plastic film (thickness is about 20) covered make software plastic cover 6 on methane-generating pit 1, the size of plastic cover 6 adds the precipitation piece plastic cover is sunk in the biogas fermentative liquid than the length and wide all will the having more about 3 meters of methane-generating pit around the software plastic cover 6, unnecessary plastic film all falls into methane-generating pit 1 surface, and airway 5 connects moisture separator 8 successively, devulcanizer 9, vacuum fan 10, gas-holder 11.Adding material back vacuum fan 10 outwards bleeds, under atmospheric effect, the buoyant stalk just is pressed in the fermented liquid, software plastic cover 6 gas inside also are drawn out of, methane-generating pit 1 just has been closed like this, when finding that software plastic cover 6 has expanded, illustrate and produced biogas, at this moment use vacuum fan 10 to extract biogas, biogas is by moisture separator 8 dehydrations, redundant moisture imports in the methane-generating pit 1 by liquid trap 7 with liquid form, and biogas by the devulcanizer desulfurization, is pressed in the gas-holder 11 more at last then.Vacuum fan 10, moisture separator 8, devulcanizer 9 are known content, are not just disclosing here, when producing gas again, carry out bleeding next time, finally can obtain more purified biogas.
The present invention has overcome that the discharging of existing methane-generating pit depended on pressure difference, stalk need to pulverize, fermentation reaction not steadily, the easy corrosion air-leakage of pond body, construction cost height, the inconvenient defective of maintenance, can solve the problem that the vast rural hinterland uses the biogas difficulty, have vast market prospect.

Claims (4)

1, the non-pressure biogas generating pit loam cake is made up of the software plastics, the length of software plastics epiphragma and width are bigger about 3 meters than the length and the width of methane-generating pit, put a plastic foamboard (3) in the middle of the methane-generating pit, biogas is pressed in the gas-holder (11) after vacuum fan (10) is extracted out through moisture separator (8) dehydration, devulcanizer (9) desulfurization again.
2, non-pressure biogas generating pit according to claim 1 is characterized in that: the size of plastic cover (6) be than the length and wide all will the having more about 3 meters of methane-generating pit, and the edge of plastic cover (6) adds the precipitation piece to be made in the fermented liquid that sinks around the plastic cover.Unnecessary plastic film all falls in the methane-generating pit (1), and airway (5) connects moisture separator (8), devulcanizer (9), vacuum fan (10), gas-holder (11) successively.
3, non-pressure biogas generating pit according to claim 1 is characterized in that: add material back vacuum fan and outwards bleed, the buoyant stalk just is pressed in the fermented liquid.
4, non-pressure biogas generating pit according to claim 1, it is characterized in that: in the middle of the body of pond, put lastblock plastic foamboard (3), plastic plate (3) swims in body middle part, pond, put the plastics tubing (4) of " worker " font above the plastic plate (3), the four-head of plastics tubing (4) does not seal, and the last many apertures of brill are convenient to air inlet, airway (5) passes plastic plate (3) and is connected with " worker " font plastics tubing (4), and airway (5) is made by the steel wire plastics flexible pipe that can bear negative pressure.
CNA2008100159578A 2008-05-04 2008-05-04 Non-pressure biogas generating pit Pending CN101270331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100159578A CN101270331A (en) 2008-05-04 2008-05-04 Non-pressure biogas generating pit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100159578A CN101270331A (en) 2008-05-04 2008-05-04 Non-pressure biogas generating pit

Publications (1)

Publication Number Publication Date
CN101270331A true CN101270331A (en) 2008-09-24

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ID=40004559

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100159578A Pending CN101270331A (en) 2008-05-04 2008-05-04 Non-pressure biogas generating pit

Country Status (1)

Country Link
CN (1) CN101270331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101948874A (en) * 2010-09-15 2011-01-19 西北农林科技大学 Method for solving problems of direct fermentation and suspension of straw for rural household biogas digesters
CN104762202A (en) * 2015-04-21 2015-07-08 天紫环保投资控股有限公司 Straw produced methane recycling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101948874A (en) * 2010-09-15 2011-01-19 西北农林科技大学 Method for solving problems of direct fermentation and suspension of straw for rural household biogas digesters
CN104762202A (en) * 2015-04-21 2015-07-08 天紫环保投资控股有限公司 Straw produced methane recycling system

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Open date: 20080924