CN103014071B - 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 PDFInfo
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- CN103014071B CN103014071B CN201210544085.0A CN201210544085A CN103014071B CN 103014071 B CN103014071 B CN 103014071B CN 201210544085 A CN201210544085 A CN 201210544085A CN 103014071 B CN103014071 B CN 103014071B
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- fermentor tank
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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
- C12M23/58—Reaction vessels connected in series or in parallel
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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
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
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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
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/02—Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
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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 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
Technical field:
The present invention relates to biogas production equipment technical field, more specifically to the agitation grinding equipment that a kind of life is for biogas use.
Background technology:
Along with the exhaustion day by day of whole world Nonrenewable energy resources; energy dilemma is also subject to people's attention day by day; biogas is clean as one, free of contamination renewable emerging energy should be had widely, is especially embodied further at the economic and social benefit of civil area biogas.
What present many biogas fermentation equipment generally adopted is sealing spontaneous fermentation, therefore the biogas of fermentation generation is impure containing a lot of impurity like this, such fermentation produce biogas 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:
Object of the present invention is just the preparation method and the production unit thereof that provide a kind of energy production high density biogas, the biogas that its fermentation produces is dense, containing less impurity, can directly apply in the middle of producing and living, it accelerates whole fermenting process simultaneously, shorten the cycle that biogas produces, biogas can be produced rapidly.
For achieving the above object, the preparation method of a kind of high density biogas of the present invention comprises the steps: (1), by human and animal excreta and water mix and blend, (2) mixture of human and animal excreta and water is ground, (3), being placed in storage tank by the mixture of the human and animal excreta ground and water makes it static and even, (4), the mixture of the human and animal excreta mixed and water is added acid to be placed in fermentor tank and to carry out first time initial fermentation, in fermenting process, the pH value of this mixture controls between 5.5 ~ 6.5, (5), by first time initial fermentation mixture introduce second fermentor tank carry out second time fermentation, the process temperature of second time fermentation controls at 30 ~ 40 DEG C, pH value controls 5.5 ~ 6.5, ceaselessly turbulent fluctuation is kept at this fermenting process mixture, the biogas simultaneously produced again imports in fermentor tank after strainer.
A kind of production unit preparing high density biogas comprises stirred pot, grinding pot, hold-up vessel, first fermentor tank and the second fermentor tank, stirred pot and grinding pot, grinding pot and hold-up vessel, hold-up vessel is all connected by pipeline with the second fermentor tank with the first fermentor tank and the first fermentor tank, pipeline is provided with transferpump, the two ends of fluid line are led on the second fermentor tank, described fluid line is provided with a fluid pump, the two ends of biogas recirculation pipeline are led on the second fermentor tank, described biogas recirculation pipeline is connected with an air pump, described biogas recirculation pipeline is also connected with a ultra filtration device.
Preferred as technique scheme, the outer wall of described second fermentor tank is provided with the hot water circulation pipeline for keeping the second fermentor tank internal temperature.
Preferred as technique scheme, described second fermentor tank is connected with a pH value test set.
Preferred as technique scheme, described ultra filtration device is connected with a garbage collection holder.
Preferred as technique scheme, the pipeline in the exit of described stirred pot is connected with a strainer.
Preferred as technique scheme, described pipeline is provided with Safety control valve and pressure-detecting device.
Preferred as technique scheme, described grinding pot leads to and has reflux line, described reflux line is provided with a transferpump.
Beneficial effect of the present invention is: the biogas that the present invention produces circulates at biogas recirculation pipeline, and on biogas recirculation pipeline, be connected with a ultra filtration device, this ultra filtration device can carry out filtration and discharge outside marsh-gas fermentation tank to some impurity in the middle of biogas, high through filtering the biogas concentration proposed, can directly apply in the middle of daily production and life.
In fermenting process of the present invention, the mixture of fermentation raw material and water is ceaselessly turbulent fluctuation simultaneously, and fermentation raw material is ground into tiny particulate, this can accelerated fermentation processes, shorten the cycle of fermentation, biogas can be produced very rapidly, and the marsh gas raw materials of unit volume can produce more biogas, improve the utilization ratio of marsh gas raw materials.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of the production unit of preparation high density biogas
In 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, ultra filtration device; 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), by human and animal excreta and water mix and blend, (2) mixture of human and animal excreta and water is ground, (3), being placed in storage tank by the mixture of the human and animal excreta ground and water makes it static and even, (4), the mixture of the human and animal excreta mixed and water is added acid to be placed in fermentor tank and to carry out first time initial fermentation, in fermenting process, the pH value of this mixture controls between 5.5 ~ 6.5, (5), by first time initial fermentation mixture introduce second fermentor tank carry out second time fermentation, the process temperature of second time fermentation controls at 30 ~ 40 DEG C, pH value controls 5.5 ~ 6.5, ceaselessly turbulent fluctuation is kept at this fermenting process mixture, the biogas simultaneously produced again imports in fermentor tank after strainer.
As shown in Figure 1: a kind of production unit preparing high density biogas comprises stirred pot 1, grinding pot 2, hold-up vessel 3, 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 is all connected by pipeline 6 with the second fermentor tank 5 with the first fermentor tank 4 and the first fermentor tank 4, hold-up vessel 3 plays the effect of a buffering, the mixture ground can be in static state after by hold-up vessel 3, and fermentation raw material and water mix, pipeline 6 is provided with transferpump 11, the fermentation raw material processed is transported to down one treatment process by the effect of transferpump 11, the two ends of fluid line 10 are led on the second fermentor tank 5, described fluid line 10 is provided with a fluid pump 16, fluid line 10 and natural pond second fermentor tank 5 constitute the loop that a fluid circulates, fluid pump 16 drives the mixture of fermentation raw material to circulate in the loop that fluid circulates, this process makes the fermentation raw material mixture turbulent fluctuation in whole second fermentor tank 5, fermentation raw material mixture in motion more easily ferments, the process of fermentation is also more accelerated, the two ends of biogas recirculation pipeline 7 are led on the second fermentor tank 5, described biogas recirculation pipeline 7 is connected with an air pump 9, described biogas recirculation pipeline 7 is also connected with a ultra filtration device 8, biogas recirculation pipeline 7 and the second fermentor tank 5 form 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, the high biogas of concentration is produced by ultra filtration device 8 purification at the biogas not stopping to circulate.
The outer wall of the second fermentor tank 5 is provided with the hot water circulation pipeline 14 for keeping the second fermentor tank 5 internal temperature, hot water circulation pipeline 14 can ensure that marsh-gas fermentation tank 1 remains on a relatively high constant temperature, and this can accelerated fermentation processes.
Second fermentor tank 5 is connected with a pH value test set 17, owing to needing to keep slightly acidic during the fermentation, therefore pH value test set 17 pairs of fermentation raw material mixtures carry out pH value test, can conveniently control the pH value in the second fermentor tank 5.
Ultra filtration device 8 is connected with a garbage collection holder 15, the impurity of discharging in methane purification process can be collected by this garbage collection holder 15, this part impurity is good organic fertilizer, it makes a whole set of biogas fermentation equipment more clean environment firendly, also improves its economic benefit simultaneously.
The pipeline 6 in the exit of stirred pot 1 is connected with a strainer 12, the fermentation raw material that this strainer 12 can prevent the profile also do not smashed larger enters into grinding pot 2 and makes grinding difficulty or grind insufficient.
Pipeline 6 is provided with Safety control valve 18 and pressure-detecting device 19; Safety control valve 18 can play the effect controlling pipeline 6 pressure; prevent because pipeline 6 pressure is excessive and occur potential safety hazard; pressure-detecting device 19 then can the pressure condition of momentarily testing pipes 6; and adjust the pressure of pipeline 6 in time, Safety control valve 18 and pressure-detecting device 19 together form the safety guard of a pipeline 6.
Grinding pot 2 leads to and has reflux line 13, described reflux line 13 is provided with a transferpump 11, this reflux line 13 and grinding pot 2 form a loop of circulate, grind at grinding pot 2 internal recycle at the effect bottom fermentation raw material of transferpump 11, and this process can make to grind more abundant.
The foregoing is only and embody the preferred embodiment of the principle of the invention, therefore do not limit protection scope of the present invention, every equalization change done according to the present invention all belongs within the scope of the claims that the present invention contains with modifying.
Claims (2)
1. a preparation method for high density biogas, comprises the steps: that (1) is by human and animal excreta and water mix and blend; (2) mixture of the human and animal excreta stirred and water is placed in storage tank makes it static and even; (3) be placed in fermentor tank by the mixture of the human and animal excreta mixed and water and carry out first time initial fermentation, in fermenting process, the pH value of this mixture controls between 5.5 ~ 6.5; (4) by first time initial fermentation mixture introduce second fermentor tank carry out second time fermentation, the process temperature of second time fermentation controls at 30 ~ 40 DEG C, pH value controls 5.5 ~ 6.5, and the biogas of generation again imports in fermentor tank after strainer; It is characterized in that: again its mixture is ground after human and animal excreta and water mix and blend, be positioned in fermentor tank carry out first time initial fermentation before add acid in mixture at the human and animal excreta mixed and water, in second time fermenting process, mixture keeps ceaselessly turbulent fluctuation.
2. prepare the production unit of high density biogas for one kind, comprise stirred pot (1), grinding pot (2), hold-up vessel (3), 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) is all connected by pipeline (6) with the second fermentor tank (5) with the first fermentor tank (4) and the first fermentor tank (4), the pipeline (6) in the exit of stirred pot (1) is connected with a strainer (12), pipeline (6) is also provided with transferpump (11), Safety control valve (18) and pressure-detecting device (19), grinding pot (2) leads to and has reflux line (13), described reflux line (13) is provided with a transferpump (11), second fermentor tank (5) is connected with a pH value test set (17), the outer wall of the second fermentor tank (5) is provided with the hot water circulation pipeline (14) for keeping the second fermentor tank (5) internal temperature, the two ends of biogas recirculation pipeline (7) are led on the second fermentor tank (5), described biogas recirculation pipeline (7) is connected with an air pump (9), described biogas recirculation pipeline (7) is also connected with a ultra filtration device (8), ultra filtration device (8) is connected with a garbage collection holder (15), it is characterized in that: the two ends of fluid line (10) are led on the second fermentor tank (5), described fluid line (10) is provided with a fluid pump (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544085.0A CN103014071B (en) | 2012-12-15 | 2012-12-15 | Preparation method for producing high-concentration marsh gas and production device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544085.0A CN103014071B (en) | 2012-12-15 | 2012-12-15 | Preparation method for producing high-concentration marsh gas and production device thereof |
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| Publication Number | Publication Date |
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| CN103014071A CN103014071A (en) | 2013-04-03 |
| CN103014071B true CN103014071B (en) | 2015-06-17 |
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| CN201210544085.0A Expired - Fee Related CN103014071B (en) | 2012-12-15 | 2012-12-15 | Preparation method for producing high-concentration marsh gas and production device thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| 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 |
| 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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Patent Citations (3)
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|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
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| CN103014071A (en) | 2013-04-03 |
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