CN103014071A - Preparation method for producing high-concentration marsh gas and production device thereof - Google Patents

Preparation method for producing high-concentration marsh gas and production device thereof Download PDF

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Publication number
CN103014071A
CN103014071A CN2012105440850A CN201210544085A CN103014071A CN 103014071 A CN103014071 A CN 103014071A CN 2012105440850 A CN2012105440850 A CN 2012105440850A CN 201210544085 A CN201210544085 A CN 201210544085A CN 103014071 A CN103014071 A CN 103014071A
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fermentor tank
mixture
fermentation
biogas
pipeline
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CN103014071B (en
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王英林
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Chen Juan
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SUZHOU WOERDUN INDUSTRIAL MACHINERY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M21/00Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/58Reaction vessels connected in series or in parallel
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M29/00Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/18External loop; Means for reintroduction of fermented biomass or liquid percolate
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M45/00Means for pre-treatment of biological substances
    • C12M45/02Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
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  • Bioinformatics & Cheminformatics (AREA)
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Abstract

The invention discloses a preparation method of high-concentration marsh gas. The preparation method comprises the following steps: (1) mixing and stirring human and animal excreta with water; (2) grinding a mixture of the human and animal excreta and the water; (3) placing the ground mixture of the human and animal excreta and the water in a storage tank, and standing until the mixture is uniform; (4) adding acid into the uniformly mixed mixture of the human and animal excreta and the water, placing in a fermentation tank, and performing first preliminary fermentation; and (5) introducing the mixture subjected to the first preliminary fermentation into a second fermentation tank, performing second fermentation, keeping incessant turbulence of the mixture in the fermentation process, simultaneously enabling the produced marsh gas to pass through a filter and then re-introducing the marsh gas into the fermentation tank. According to the preparation method disclosed by the invention, the concentration of the marsh gas produced by fermentation is very high, and the marsh gas contains few impurities and can be directly applied in production and life; and simultaneously, the whole fermentation process is accelerated, the period of producing the marsh gas is shortened and the marsh gas can be fast produced.

Description

A kind of preparation method and production unit thereof of energy production high density biogas
Technical field:
The present invention relates to the biogas production equipment technical field, the agitation grinding equipment that is for biogas use more specifically to a kind of life.
Background technology:
Day by day exhaustion along with whole world Nonrenewable energy resources; energy dilemma also is subject to people's attention day by day; biogas should be had widely as a kind of cleaning, free of contamination renewable emerging energy, and especially the economic and social benefit at civil area biogas is further embodied.
What present many biogas fermentation equipment generally adopted is to seal spontaneous fermentation, therefore like this biogas that produces of fermentation is impure contains a lot of impurity, like this biogas that produces of fermentation all can not directly apply in many cases produce and life but in, also need to carry out special purification processes.
Summary of the invention:
Purpose of the present invention just is to provide a kind of preparation method and production unit thereof of energy production high density biogas, the biogas that its fermentation produces is dense, contain less impurity, can directly apply in the middle of production and the life, it has accelerated whole fermenting process simultaneously, shorten the cycle that biogas produces, can produce rapidly biogas.
For achieving the above object, the preparation method of a kind of high density biogas of the present invention comprises the steps: (1), with human and animal excreta and water mix and blend, (2) mixture with human and animal excreta and water grinds, (3), the human and animal excreta that grinding is finished and the mixture of water are placed on and make it static and even in the storage tank, (4), the mixture of the human and animal excreta that mixes and water is added acid to be placed on and to carry out the initial fermentation first time in the fermentor tank, the pH value of this mixture is controlled between 5.5~6.5 in the fermenting process, (5), second fermentor tank of mixture introducing of initial fermentation carries out the fermentation second time with the first time, the process temperature of fermentation is controlled at 30~40 ℃ for the second time, pH value is controlled at 5.5~6.5, keep ceaselessly turbulent fluctuation at this fermenting process mixture, produced simultaneously biogas imports in the fermentor tank again through after the strainer.
A kind of production unit for preparing high density biogas comprises stirred pot, grinding pot, hold-up vessel, the first fermentor tank and the second fermentor tank, stirred pot and grinding pot, grinding pot and hold-up vessel, hold-up vessel and the first fermentor tank and the first fermentor tank and the second fermentor tank all are connected by pipeline, transferpump is installed on the pipeline, lead on the second fermentor tank at the two ends of fluid line, a fluid pump is installed on the described fluid line, lead on the second fermentor tank at the two ends of biogas recirculation pipeline, be connected with an air pump on the described biogas recirculation pipeline, also be connected with a super strainer on the described biogas recirculation pipeline.
Preferred as technique scheme is equipped with on the outer wall of described the second fermentor tank for the hot water circulation pipeline that keeps the second fermentor tank internal temperature.
Preferred as technique scheme is connected with a pH value test set on described the second fermentor tank.
Preferred as technique scheme is connected with a garbage collection holder on the described super strainer.
Preferred as technique scheme is connected with a strainer on the pipeline in the exit of described stirred pot.
Preferred as technique scheme is equipped with Safety control valve and pressure-detecting device on the described pipeline.
Preferred as technique scheme, leading on the described grinding pot has reflux line, and a transferpump is installed on the described reflux line.
Beneficial effect of the present invention is: the biogas that the present invention produces circulates at the biogas recirculation pipeline, and be connected with a super strainer at the biogas recirculation pipeline, this super strainer can filter some impurity in the middle of the biogas discharges outside the marsh-gas fermentation tank, high through filtering the biogas concentration that proposes, can directly apply in the middle of daily production and the life.
The mixture of fermentation raw material and water is ceaselessly turbulent fluctuation in the while fermenting process of the present invention, and fermentation raw material is ground into tiny particulate, this can accelerated fermentation processes, shorten the cycle of fermentation, can produce very rapidly biogas, and the marsh gas raw materials of unit volume can produce more biogas, the utilization ratio of raising marsh gas raw materials.
Description of drawings:
The present invention is described further below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of the production unit of preparation high density biogas
Among the figure: 1, stirred pot; 2, grinding pot; 3, hold-up vessel; 4, the first fermentor tank; 5, the second fermentor tank; 6, pipeline; 7, biogas recirculation pipeline; 8, super strainer; 9, air pump; 10, fluid line; 11, transferpump; 12, strainer; 13, reflux line; 14, hot water circulation pipeline; 15, garbage collection holder; 16, fluid pump; 17, pH value test set; 18, Safety control valve; 19, pressure-detecting device.
Embodiment:
The preparation method of a kind of high density biogas of the present invention comprises the steps: (1), with human and animal excreta and water mix and blend, (2) mixture with human and animal excreta and water grinds, (3), the human and animal excreta that grinding is finished and the mixture of water are placed on and make it static and even in the storage tank, (4), the mixture of the human and animal excreta that mixes and water is added acid to be placed on and to carry out the initial fermentation first time in the fermentor tank, the pH value of this mixture is controlled between 5.5~6.5 in the fermenting process, (5), second fermentor tank of mixture introducing of initial fermentation carries out the fermentation second time with the first time, the process temperature of fermentation is controlled at 30~40 ℃ for the second time, pH value is controlled at 5.5~6.5, keep ceaselessly turbulent fluctuation at this fermenting process mixture, produced simultaneously biogas imports in the fermentor tank again through after the strainer.
As shown in Figure 1: a kind of production unit for preparing high density biogas comprises stirred pot 1, grinding pot 2, hold-up vessel 3, the first fermentor tank 4 and the second fermentor tank 5, stirred pot 1 and grinding pot 2, grinding pot 2 and hold-up vessel 3, hold-up vessel 3 and the first fermentor tank 4 and the first fermentor tank 4 and the second fermentor tank 5 all are connected by pipeline 6, hold-up vessel 3 plays the effect of a buffering, the mixture that grinding is finished can be in static state after by hold-up vessel 3, and fermentation raw material and water mix, transferpump 11 is installed on the pipeline 6, the effect of transferpump 11 is transported to down treatment process one with the fermentation raw material of finishing dealing with, lead on the second fermentor tank 5 at the two ends of fluid line 10, a fluid pump 16 is installed on the described fluid line 10, fluid line 10 and natural pond the second fermentor tank 5 have consisted of the loop of a Fluid Circulation, the mixture that fluid pump 16 drives fermentation raw material circulates in the loop of Fluid Circulation, this process is so that the fermentation raw material mixture turbulent fluctuation in whole the second fermentor tank 5, fermentation raw material mixture in the motion more easily ferments, the process of fermentation is also more accelerated, lead on the second fermentor tank 5 at the two ends of biogas recirculation pipeline 7, be connected with an air pump 9 on the described biogas recirculation pipeline 7, also be connected with a super strainer 8 on the described biogas recirculation pipeline 7, biogas recirculation pipeline 7 and the second fermentor tank 5 consist of the loop of a biogas recirculation, under the effect of air pump 9, the biogas that fermentation produces carries out flow circuit in the loop of whole biogas recirculation, and purifying by super strainer 8 at the biogas that does not stop to circulate produces the high biogas of concentration.
Be equipped with on the outer wall of the second fermentor tank 5 for the hot water circulation pipeline 14 that keeps the second fermentor tank 5 internal temperatures, hot water circulation pipeline 14 can guarantee that marsh-gas fermentation tank 1 remains on a relatively high constant temperature, and this can accelerated fermentation processes.
Be connected with a pH value test set 17 on the second fermentor tank 5, owing to needing to keep slightly acidic during the fermentation, so 17 pairs of fermentation raw material mixtures of pH value test set carry out the pH value test, can conveniently control the pH values in the second fermentor tank 5.
Be connected with a garbage collection holder 15 on the super strainer 8, this garbage collection holder 15 can be collected the impurity of discharging in the methane purification process, this part impurity is good organic fertilizer, it has also promoted its economic benefit simultaneously so that a whole set of biogas fermentation equipment clean environment firendly more.
Be connected with a strainer 12 on the pipeline 6 in the exit of stirred pot 1, this strainer 12 can prevent that the larger fermentation raw material of profile of also not smashing from entering into grinding pot 2 so that grind difficulty or grind insufficient.
Safety control valve 18 and pressure-detecting device 19 are installed on the pipeline 6; Safety control valve 18 can play the effect of control pipeline 6 pressure; prevent from occurring because pipeline 6 pressure are excessive potential safety hazard; pressure-detecting device 19 then can momentarily detect the pressure condition of pipeline 6; and in time the pressure of pipeline 6 is adjusted, Safety control valve 18 and pressure-detecting device 19 have consisted of the safety guard of a pipeline 6 together.
Leading on the grinding pot 2 has reflux line 13, one transferpump 11 is installed on the described reflux line 13, this reflux line 13 and grinding pot 2 form the loop of a circulation, grind at grinding pot 2 internal recycle at the effect bottom fermentation raw material of transferpump 11, and this process can be more abundant so that grind ground.
Therefore the above do not limit protection scope of the present invention only for embodying the preferred embodiment of the principle of the invention, and every equalization of doing according to the present invention changes with modifying and all belongs within the claim that the present invention contains.

Claims (8)

1. the preparation method of a high density biogas, it is characterized in that comprising the steps: (1), with human and animal excreta and water mix and blend, (2) mixture with human and animal excreta and water grinds, (3), the human and animal excreta that grinding is finished and the mixture of water are placed on and make it static and even in the storage tank, (4), the mixture of the human and animal excreta that mixes and water is added acid to be placed on and to carry out the initial fermentation first time in the fermentor tank, the pH value of this mixture is controlled between 5.5~6.5 in the fermenting process, (5), second fermentor tank of mixture introducing of initial fermentation carries out the fermentation second time with the first time, the process temperature of fermentation is controlled at 30~40 ℃ for the second time, pH value is controlled at 5.5~6.5, keep ceaselessly turbulent fluctuation at this fermenting process mixture, produced simultaneously biogas imports in the fermentor tank again through after the strainer.
2. production unit for preparing high density biogas, it comprises stirred pot (1), grinding pot (2), hold-up vessel (3), the first fermentor tank (4) and the second fermentor tank (5), stirred pot (1) and grinding pot (2), grinding pot (2) and hold-up vessel (3), hold-up vessel (3) and the first fermentor tank (4) and the first fermentor tank (4) and the second fermentor tank (5) all are connected by pipeline (6), transferpump (11) is installed on the pipeline (6), it is characterized in that: lead on the second fermentor tank (5) at the two ends of fluid line (10), a fluid pump (16) is installed on the described fluid line (10), lead on the second fermentor tank (5) at the two ends of biogas recirculation pipeline (7), be connected with an air pump (9) on the described biogas recirculation pipeline (7), also be connected with a super strainer (8) on the described biogas recirculation pipeline (7).
3. a kind of production unit for preparing high density biogas according to claim 2 is characterized in that: be equipped with on the outer wall of the second fermentor tank (5) for the hot water circulation pipeline (14) that keeps the second fermentor tank (5) internal temperature.
4. a kind of production unit for preparing high density biogas according to claim 2 is characterized in that: be connected with a pH value test set (17) on the second fermentor tank (5).
5. a kind of production unit for preparing high density biogas according to claim 2 is characterized in that: be connected with a garbage collection holder (15) on the super strainer (8).
6. a kind of production unit for preparing high density biogas according to claim 2 is characterized in that: be connected with a strainer (12) on the pipeline (6) in the exit of stirred pot (1).
7. a kind of production unit for preparing high density biogas according to claim 2 is characterized in that: Safety control valve (18) and pressure-detecting device (19) are installed on the pipeline (6).
8. a kind of production unit for preparing high density biogas according to claim 2, it is characterized in that: leading on the grinding pot (2) has reflux line (13), and a transferpump (11) is installed on the described reflux line (13).
CN201210544085.0A 2012-12-15 2012-12-15 Preparation method for producing high-concentration marsh gas and production device thereof Expired - Fee Related CN103014071B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103937661A (en) * 2014-05-20 2014-07-23 乔春明 Thermoelectric linkage device for biogas
CN106148169A (en) * 2016-07-11 2016-11-23 杨超坤 One can produce high concentration biogas production equipment
ITUA20162969A1 (en) * 2016-04-28 2017-10-28 I Biotech S R L BIOGAS PLANT WITH MULTIPHASE ANAEROBIC DIGESTION TREATMENT WITH HUMID, VARIABLE TEMPERATURES AND RELATED PROCEDURE FOR USE

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CN102321528A (en) * 2011-10-18 2012-01-18 朱林 Horizontal stirring methane fermentation device with vertical cylindrical tank
CN102757889A (en) * 2011-04-27 2012-10-31 中国科学院青岛生物能源与过程研究所 Method for producing methane from kitchen waste by two continuous anaerobic fermentation steps

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Publication number Priority date Publication date Assignee Title
CN101358209A (en) * 2008-08-25 2009-02-04 彭美忠 Technique for preparing biogas by high-temperature anaerobic zymosis method using animal manure as raw material
CN102757889A (en) * 2011-04-27 2012-10-31 中国科学院青岛生物能源与过程研究所 Method for producing methane from kitchen waste by two continuous anaerobic fermentation steps
CN102321528A (en) * 2011-10-18 2012-01-18 朱林 Horizontal stirring methane fermentation device with vertical cylindrical tank

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103937661A (en) * 2014-05-20 2014-07-23 乔春明 Thermoelectric linkage device for biogas
CN103937661B (en) * 2014-05-20 2016-09-07 乔春明 Biogas thermoelectric linkage device
ITUA20162969A1 (en) * 2016-04-28 2017-10-28 I Biotech S R L BIOGAS PLANT WITH MULTIPHASE ANAEROBIC DIGESTION TREATMENT WITH HUMID, VARIABLE TEMPERATURES AND RELATED PROCEDURE FOR USE
CN106148169A (en) * 2016-07-11 2016-11-23 杨超坤 One can produce high concentration biogas production equipment
CN106148169B (en) * 2016-07-11 2018-11-23 泰州市海星环保设备安装有限公司 It is a kind of to produce high concentration biogas production equipment

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