CN105820943B - A kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units - Google Patents
A kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units Download PDFInfo
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- CN105820943B CN105820943B CN201510285452.3A CN201510285452A CN105820943B CN 105820943 B CN105820943 B CN 105820943B CN 201510285452 A CN201510285452 A CN 201510285452A CN 105820943 B CN105820943 B CN 105820943B
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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
- 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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- 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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/48—Automatic or computerized control
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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
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Abstract
The invention discloses a kind of multi-stage gas-liquids to combine stirring Venturi tube-CSTR reaction units comprising continuously stirs full mixed anaerobic reaction device, Venturi tube, Multistage external circulating pipeline.The present invention realizes the effect of dynamic hydraulic combined stirring using Venturi tube, zymotic fluid is sucked out with pump, it is injected again by Venturi tube, biogas forms stirring action on the top of entry position, and it can achieve the effect that prevent zymotic fluid upper layer from crusting, liquid forms stirring action in the lower part of entry position, it can be according to the different situations of fermentation process, different form is carried out to fermentation raw material, different degrees of stirring, shorten Hydraulic retention time, substantially increase the treatment effeciency of reactor, on the other hand the device is equipped with automation control appliance and speed changer, realize cycle-time feeder, automatic stirring, and it can be according to the different situations of fermentation process, different form is carried out to fermentation raw material, different degrees of stirring.
Description
Technical field
The present invention is a kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units.
Background technology
Biogas fermentation is a kind of processing organic waste, realizes the effective way of the recycling of waste.Pass through natural pond
Organic matter can be passed through the decomposition of microorganism, generate clean energy resource biogas, realize organic waste by gas fermentation process
Recycling, biogas fermentation have become the important tie of development of agricultural circulation economy pattern.In anaerobic digestion process, mixing
It is tired can to efficiently solve mass transfer caused by due to microorganism and labile organic compound can not be contacted actually for the application of stirring technique
Be difficult to and the problems such as physico-chemical and biological properties are uneven, so as to improve reactor performance and improve anaerobic digestion
Gas production rate.
Agitating mode in existing marsh gas fermentation process has artificial stirring, mechanical agitation, Gas Stirring, liquid agitation
Deng, but these agitating modes all there is a problem of it is certain：1）Artificial stirring：It is chiefly used in laboratory, installation for fermenting volume is smaller,
By periodically rocking fermentation flask, achieve the purpose that be stirred zymotic fluid.But for the hair of stalk raw material and high concentration
The purpose of mixing is not achieved in ferment, artificial stirring, while surface scum hardening of fermenting, and hinders collecting methane；2）Mechanical agitation：Machinery
Stirring is the mechanical device using various installation forms, so that material is reached the one of admixture by various forms of mechanical movements
Kind agitating mode.Such agitating mode can generate powerful shear action, can disappear to smash by the rotation of stirring blade
Change raw material, is conducive to high-viscosity material mixing, is mainly used for laboratory ferment device and biogas engineering.But when due to fermentation
Between it is long, agitating device needs long-term operating, and especially in biogas engineering, mechanical stirring device long period of soaking is in zymotic fluid
In, it is be easy to cause the corrosion of device, after corrosion, needs replacing agitating device, while replacing, needs to open fermentation dress
It sets, be easy to cause fermentation tank gas leakage at this time, influence the normal operation of biogas fermentation, while such mode energy consumption is big, it is of high cost,
It is complicated for operation and be unfavorable for aerogenesis；3）Liquid agitation：Liquid agitation generally operates generated liquid flowing to complete using pump
Stirring to material takes zymotic fluid, then by its percussion, break zymotic fluid surface using zymotic fluid itself by pumping
Crust realizes fermentation broth agitation, is that low energy consumption for one kind, easy to operate, ensures the agitating mode of tank body leakproofness, but liquid stirs
The increase of local pressure in pressure or fermentor can be caused by mixing, and be unfavorable for fermenting；4）Gas Stirring：Gas Stirring is exactly to pass through gas
Bubble moving to realize the purpose to material stirring in material, in biogas fermentation, Gas Stirring refers mainly to biogas recirculation and stirs
It mixes, enters marsh-gas fermentation tank through all kinds of distributors after the compressed pressurization of biogas, raw material forms cycle under the promotion of biogas in tank,
The agitating mode requires the air-tightness of device very high, it is difficult to be utilized in engineering.
Invention content
Present invention is generally directed to the above problem, provide in a kind of tank that equipment is few, simple in structure, working drawing review is easy, stirring
Good, efficient, running device expense the is low anaerobic reaction device of effect.
To achieve the above object, the present invention takes following technical proposals：
A kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units, are continuously stirring full mixed anaerobic reaction device
（5）External installation contain Venturi tube（1）Multistage external circulating pipeline（2）, during the fermentation, circulating pump can be passed through
（6）By zymotic fluid from Ax（Wherein x=1,2,3N, N are determined by the stirring series of reactor）It is sucked out, passes through venturi
Pipe（1）And external circulation line（2）, then from Bx injections, biogas forms stirring action on the top of entry position, and can reach
The effect for preventing zymotic fluid upper layer from crusting, liquid then form stirring action, wherein biogas slurry outlet most in the lower part of entry position
Lower end level-one should be higher than that activated sludge layer, on the other hand equipped with automation control appliance and speed changer, realize timing automatically into
Material, automatic stirring, and different form, different degrees of can be carried out to fermentation raw material according to the different situations of fermentation process
Stirring.
The multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units are further circulating pumps（6）It is mounted on out
The bottom level-one of water end (W.E.), biogas slurry can be flowed to voluntarily at pump due to gravity, and enough biogas slurries are improved for pump, can make pump
Preferably work, and be easy to install and maintain.
The multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units are further in external circulation line（2）On
Venturi tube is installed（1）, Venturi tube（1）Air inlet be connected with gas holder, stirred using the principle of Venturi tube to reach gas-liquid
Mix and stir the effect of broken shell.
The multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units are further in Venturi tube（1）Into
Duan Jiayi biogas switch of gas port can effectively control the air inflow of biogas, to control the degree of Gas Stirring.
The multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units are further external circulation lines（2）Natural pond
Liquid outlet end is to Venturi tube（1）Pipe diameter should be greater than the pipe diameter of biogas slurry input end, not only can guarantee Venturi tube
There is enough pressure, and may insure that biogas slurry jet stream enters reactor.
The multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units are further to inject port in biogas slurry to pacify
A hydraulic ejector is filled, to enhance mixing effect.
The multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units are further equipped with automation control
Equipment and speed changer realize cycle-time feeder, automatic stirring, and can be according to the different situations of fermentation process, to fermentation
Raw material carries out different form, different degrees of stirring.
The advantageous effect that the present invention generates has：Multistage dynamic hydraulic combined stirring is realized, it can be according to fermentation process not
Same situation carries out different form, different degrees of stirring to fermentation raw material, solves the phenomenon that liquid level crust, and guarantee has been fermented
Entirely, aerogenesis is uniform, to improve gas producing efficiency, provides in a kind of tank that equipment is few, simple in structure, working drawing review is easy, stirring
Good, efficient, running device expense the is low anaerobic reaction device of effect.
Description of the drawings：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is schematic structural view of the invention.
Symbol description：
1. Venturi tube, 2. Multistage external circulating pipelines, 3. gas outlets, 4. water seal discharge ports, 5.CSTR reactors, 6. natural ponds
Liquid circulating pump, 7. feed inlets, 8. sewage draining exits, 9. zymotic fluid imports, 10. biogas imports, the outlet of 11. zymotic fluids, Ax are zymotic fluid
Gate out switch, Bx are zymotic fluid inlet switch.
Specific implementation mode：
The invention will be further described with example below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units, are continuously stirring full mixing
External Multistage external circulating pipeline 2 of the installation containing Venturi tube 1 of anaerobic reactor 5 can pass through cycle during the fermentation
Pump 6 is by zymotic fluid from Ax（Wherein x=1,2,3N, N are determined by the stirring series of reactor）It is sucked out, passes through venturi
Pipe 1 and external circulation line 2, then injected from Bx, biogas forms stirring action on the top of entry position, and can reach and prevent
The effect of zymotic fluid upper layer crust, liquid then form stirring action, the wherein bottom of biogas slurry outlet in the lower part of entry position
Level-one should be higher than that activated sludge layer, on the other hand equipped with automation control appliance and speed changer, realize cycle-time feeder, from
Dynamic stirring, and different form, different degrees of stirring can be carried out to fermentation raw material according to the different situations of fermentation process.
Preferably, circulating pump 6 is mounted on the bottom level-one of water outlet, and biogas slurry can be flowed to voluntarily due to gravity
At pump, enough biogas slurries are improved for pump, pump can be made preferably to work, and be easy to install and maintain.
Preferably, Venturi tube 1 is installed on external circulation line 2, the air inlet 10 of Venturi tube 1 is connected with gas holder, profit
Achieve the effect that gas-liquid agitation and broken shell with the principle of Venturi tube.
Preferably, in Duan Jiayi biogas switch of air inlet of Venturi tube 1, the air inlet of biogas can effectively be controlled
Amount, to control the degree of Gas Stirring.
Preferably, the pipe diameter of biogas slurry outlet end to the Venturi tube 1 of external circulation line 2 should be greater than biogas slurry input end
Pipe diameter not only can guarantee that Venturi tube has enough pressure, and may insure that biogas slurry jet stream enters reactor.
Preferably, it injects port in biogas slurry and one hydraulic ejector is installed, to enhance mixing effect.
Preferably, multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units equipped with automation control appliance and
Speed changer, realizes cycle-time feeder, automatic stirring, and can according to the different situations of fermentation process, to fermentation raw material into
Row different form, different degrees of stirring.
The present invention realizes multistage dynamic hydraulic combined stirring, can be according to the different situations of fermentation process, to fermentation raw material
Different form, different degrees of stirring are carried out, solves the phenomenon that liquid level crust, ensures that fermentation is complete, aerogenesis is uniform, to carry
High yield gas efficiency, provides in a kind of tank that equipment is few, simple in structure, working drawing review is easy, mixing effect is good, efficient, operating
The low anaerobic reaction device of cost of equipment.
The present invention is described by way of example above, but the present invention is not limited to above-mentioned specific embodiment, all bases
The scope of protection of present invention is belonged in any changes or modifications that the present invention is done.
Claims (4)
1. a kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units, it is characterized in that：Detest continuously stirring full mixing
External Multistage external circulating pipeline (2) of the installation containing Venturi tube (1) of oxygen reactor (5) can pass through during the fermentation
Circulating pump (6) is by zymotic fluid from zymotic fluid gate out switch AxBe sucked out, wherein x=1,2,3N, N by reactor stirring grade
Number determines, by Venturi tube (1) and external circulation line (2), then from zymotic fluid inlet switch BxIt injects, wherein x=1,2,
3N, N determine by the stirring series of reactor, and biogas forms stirring action on the top of entry position, and can be with
Achieve the effect that prevent zymotic fluid upper layer from crusting, liquid forms stirring action in the lower part of entry position, and wherein biogas slurry exports
Bottom level-one should be higher than that activated sludge layer, and on the other hand for the device equipped with automation control appliance and speed changer, it is fixed to realize
When automatic feed, automatic stirring, and different form, no can be carried out to fermentation raw material according to the different situations of fermentation process
With the stirring of degree, the pipe diameter of biogas slurry outlet end to the Venturi tube (1) of external circulation line (2) should be greater than biogas slurry input end
Pipe diameter, not only can guarantee that Venturi tube has enough pressure, and may insure that biogas slurry jet stream enters reactor；
In the side of CSTR reactors (5) installation Multistage external circulating pipeline (2), it is interconnected between at different levels, only need to passes through switch
Carry out the series of control loop, and multiple stage circulation can be realized by a circulating pump (6), to reach the mesh of low power consuming, low cost
's；
Venturi tube (1) is installed on external circulation line (2), the air inlet of Venturi tube (1) is connected with gas holder, utilizes venturi
The principle of pipe achievees the effect that gas-liquid agitation and broken shell；
Add a biogas switch in the inlet port of Venturi tube (1), the air inflow of biogas can be effectively controlled, to control
The degree of Gas Stirring.
2. multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units according to claim 1, it is characterized in that：Following
Ring pumps the bottom level-one that (6) are mounted on water outlet, and biogas slurry can be flowed to voluntarily at pump due to gravity, and foot is provided for pump
Enough biogas slurries can make pump preferably work, and be easy to install and maintain.
3. multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units according to claim 1, it is characterized in that：In natural pond
Liquid input end installs a hydraulic ejector, to enhance mixing effect.
4. multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units according to claim 1, it is characterized in that：The dress
It sets equipped with automation control appliance and speed changer, realizes cycle-time feeder, automatic stirring, and can be according to fermentation process
Different situations, to fermentation raw material carry out different form, different degrees of stirring.
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| CN201510285452.3A CN105820943B (en) | 2015-05-29 | 2015-05-29 | A kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units |
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| CN201510285452.3A CN105820943B (en) | 2015-05-29 | 2015-05-29 | A kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units |
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| CN105820943B true CN105820943B (en) | 2018-07-17 |
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| CN109289713B (en) * | 2018-10-18 | 2021-04-20 | 辽宁石油化工大学 | Mosquito-repellent incense coil isothermal reactor and using method thereof |
| CN111701561B (en) * | 2020-07-31 | 2021-11-19 | 中国石油化工股份有限公司 | Multi-stage variable speed rotating packed tower and extraction method |
| CN112481106B (en) * | 2020-12-02 | 2021-07-30 | 通化县东明农牧业发展(集团)有限公司 | Straw anaerobic digester material mixing system |
| CN114350480B (en) * | 2022-01-12 | 2023-12-19 | 万华化学(四川)有限公司 | Double-circulation bubbling fermentation tank and method for preparing lactic acid by fermentation |
| CN114794442A (en) * | 2022-05-23 | 2022-07-29 | 福建胜美鲜生物科技有限公司 | Method and device for brewing fish sauce by microbial fermentation |
Citations (5)
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| CN101182454A (en) * | 2007-11-05 | 2008-05-21 | 程龙 | External-internal double-cycling bioreactor |
| CN102154372A (en) * | 2010-12-20 | 2011-08-17 | 昆明理工大学 | Method for producing methane by means of fermentation with jet mixing technology |
| CN102502960A (en) * | 2011-12-26 | 2012-06-20 | 陕西清源环境实业有限公司 | Gas-liquid blending and stirring device of sewage-sludge complete mixing type anaerobic fermentation tank and treatment method thereof |
| CN202786235U (en) * | 2012-09-28 | 2013-03-13 | 云南师范大学 | Circulation biogas slurry pipeline for biogas slurry stirring and hull breaking of anaerobic reactor |
| CN202953832U (en) * | 2012-11-08 | 2013-05-29 | 广西华纳新材料科技有限公司 | Venturi tube reactor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182454A (en) * | 2007-11-05 | 2008-05-21 | 程龙 | External-internal double-cycling bioreactor |
| CN102154372A (en) * | 2010-12-20 | 2011-08-17 | 昆明理工大学 | Method for producing methane by means of fermentation with jet mixing technology |
| CN102502960A (en) * | 2011-12-26 | 2012-06-20 | 陕西清源环境实业有限公司 | Gas-liquid blending and stirring device of sewage-sludge complete mixing type anaerobic fermentation tank and treatment method thereof |
| CN202786235U (en) * | 2012-09-28 | 2013-03-13 | 云南师范大学 | Circulation biogas slurry pipeline for biogas slurry stirring and hull breaking of anaerobic reactor |
| CN202953832U (en) * | 2012-11-08 | 2013-05-29 | 广西华纳新材料科技有限公司 | Venturi tube reactor |
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