CN106916732B - Bee van-type stalk fermentation system and its fermentation process - Google Patents

Bee van-type stalk fermentation system and its fermentation process Download PDF

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Publication number
CN106916732B
CN106916732B CN201710346633.1A CN201710346633A CN106916732B CN 106916732 B CN106916732 B CN 106916732B CN 201710346633 A CN201710346633 A CN 201710346633A CN 106916732 B CN106916732 B CN 106916732B
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fermentation
fermenting
installation
stalk
liquid
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CN106916732A (en
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罗涛
梅自力
孔垂雪
李江
席江
李淑兰
段奇武
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Sichuan zhongzhao bioenergy Testing Co.,Ltd.
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Biogas Institute of Ministry of Agriculture
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    • 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
    • C12M23/36Means for collection or storage of gas; Gas holders
    • 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
    • C12M23/38Caps; Covers; Plugs; Pouring means
    • 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
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023Methane
    • 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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Abstract

The invention discloses a kind of bee van-type stalk fermentation system and its fermentation process, fermentation system includes installation for fermenting, multiple direct filler units for loading stalk are provided in installation for fermenting, the top surface of filler unit is located at the maximum water level in installation for fermenting, and the bottom surface of filler unit is located at the lowest water level line of installation for fermenting bottom;Filler unit includes stalk filling area and the fermentation liquid overcurrent area positioned at stalk filling area end, adjacent two filler unit is positive and negative to be arranged in installation for fermenting, liquid baffling fermentation channel is formed in installation for fermenting by the fermentation liquid overcurrent area of positive and negative setting, the liquid feeding end in liquid baffling fermentation channel is connected with inlet pipe, and outlet end is connected with circulation line.The present invention can effectively ensure that coming into full contact with for anaerobe and stalk object, improves the fermentation concentration and gas producing efficiency of fermentation reactor, and do not need to pre-process stalk, reduces the pretreatment of raw material operating process of stalk engineering.

Description

Bee van-type stalk fermentation system and its fermentation process
Technical field
The present invention relates to a kind of stalk fermentation system more particularly to a kind of bee van-type stalk fermentation system and its fermentation sides Method belongs to biogas project field.
Background technique
Agricultural crop straw has as a kind of special biogas fermentation material and is easy floating, difficult mixing (layering is serious), ties The features such as shell are highly detrimental to uniform mass transfer and high-efficiency fermenting in installation for fermenting.In engineer application, there are different economy The biogas fermentation device of investment and different fermentations scale.These devices generally pass through the material characteristic for changing stalk --- it crushes Deng pretreatment, requirement of the existing installation for fermenting to fermentation materials characteristic is adapted to, to achieve the purpose that smooth input and output material.For example, China Patent Publication No. CN203200264U discloses a kind of efficient hybrid anaerobic fermentation device, and publication date is 09 month 2013 18 Day, including tank body, feed pipe, discharge nozzle, sludge pipe, biogas pipe, biogas stirring pipe, tank deck stirring motor, stirrer paddle, waterpower Baffle plate, biogas shield and heating coil.The core of the patent is to reach equal by a large amount of mechanical stirring energy consumption investment The purpose of even stirring.For another example, China Patent Publication No. CN102876566A discloses a kind of upper deflector type stalk type movable type natural pond Gas fermentor, publication date are on 01 16th, 2013, at least three pieces arrangements are equipped in tank body as the slanting baffle of folding shape, every piece tiltedly The lower end of plate washer is equipped with sediment mouth, other than being located at the slant block board of tank body topmost, the upper end of remaining slanting baffle and tank body There are dross channels between inner wall;The top of tank body be equipped with feed hopper and gas outlet, feed pipe connect with feed hopper and time Flow tube extends to lower part in tank body;Tank body lower part is equipped with the sediment residual cake valve being located at below lowest part slanting baffle, and tank body top is equipped with Dross residual cake valve below topmost slanting baffle.The patent does not consider anaerobe and stalk material in fermentation liquid Effectively mixing.
The above-mentioned prior art such as is required to crush stalk at the pretreatment.Cause existing stalk marsh gas continuous fermentation apparatus object Expect that concentration is low (fermentation TS≤3%), generally existing fermentation operation energy consumption is big, gas producing efficiency is relatively low, anaerobic digestion gas production low efficiency etc. Deficiency seriously constrains the long-term efficient operation of rice straw biogas project.
Due to the material characteristic that rice straw is easy to float, even across the pretreatment of powder state, into after in installation for fermenting, It is difficult to ensure that its uniform mass transfer.Further, since rice straw itself content of lignin with higher, accounts for about the 10%- of its dry weight 15%, it is difficult without processing by anaerobe catabolism, so that its overall flow in the reactor is poor, is easy to make At line clogging.In addition, the floatation characteristic of rice straw is easy that it is made to form dross on the surface of fermentation liquid, relative to feces of livestock and poultry Class reactor is easier to crust, and causes fermentation raw material to waste, while also inhibiting the release of biogas.
Therefore, a kind of novel anaerobic reactor for being suitable for section shape or whole strain rice straw is researched and developed, China's biogas project is met Development trend, have good technical feasibility and application prospect.However, its critical issue is to improve fermentation concentration, have The uniform mass transfer effect of the realization of effect, to achieve the purpose that improve engineering volume term rate.In China Patent No. A kind of van-type continuous feeding and discharging anaeroic digestor is disclosed in 2011205315851, publication date is on 07 18th, 2012.Its There are the problem of it is as follows: 1, need that track is arranged in inside reactor, to keep the stabilization in fermentation compartment, construction to fermentation system Level requirement is higher, and high in the operation level requirement of later period operation and maintenance process, and mass transfer effect is poor, it is clear that does not meet rural area The horizontal low status of Operation and Maintenance.2, the patent does not fully consider the mass exchange inside fermentation liquid and stalk fermentation area, so that Stalk heap block is larger, is unfavorable for the infiltration and materials exchange of fermentation liquid.In addition, the device not to the flow field inside installation for fermenting just The effective design of row, so that cannot preferably realize that uniformly initiative, fermentation blind area are more.In this case, straw are be easy to cause Organic acid in stalk fermentation zone generates excessively, cannot be discharged in time, while the anaerobe in fermentation liquid is again less than enough Organic matter carry out metabolism so that the gas production rate of installation for fermenting is not high.
In addition, having the two-phase zymotechnique of use " garage type " in German straw methane engineering, being set on installation for fermenting top Meter spray port blows floating the method for mouth in installation for fermenting bottom design biogas, to realize having for stalk material and fermentative microorganism Effect contact, but such stalk soaks that rear heap block is larger, and gravity is larger, needs biggish power that can just stalk be made to overturn, and very Hardly possible overturning uniformly, therefore is extremely difficult to uniformly mix purpose.
Summary of the invention
It is an object of the invention to overcome the above problem of the existing technology, a kind of bee van-type stalk fermentation system is provided And its fermentation process.The present invention can effectively ensure that coming into full contact with for anaerobe and stalk object, improve the hair of fermentation reactor Ferment concentration and gas producing efficiency, while preventing stalk from floating and crusting, realize the smooth input and output material of material and simplifying operation and maintenance, and It does not need to pre-process stalk, reduces the pretreatment of raw material operating process of stalk engineering.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of bee van-type stalk fermentation system, it is characterised in that: including installation for fermenting, sealing is provided on installation for fermenting Lid, installation for fermenting and sealing cover water-stop cooperate, and multiple direct filler units for loading stalk, filler are provided in installation for fermenting The top surface of unit is located at the maximum water level in installation for fermenting, and the bottom surface of filler unit is located at the minimum water of installation for fermenting bottom At bit line;Filler unit includes stalk filling area and the fermentation liquid overcurrent area positioned at stalk filling area end, adjacent two fillers list Member is positive and negative to be arranged in installation for fermenting, and the fermentation of liquid baffling is formed in installation for fermenting by the fermentation liquid overcurrent area of positive and negative setting The liquid feeding end in channel, liquid baffling fermentation channel is connected with inlet pipe, and outlet end is connected with circulation line.
The adjacent positive and negative set-up mode of two filler units is the water level line position in the fermentation liquid overcurrent area of a filler unit It is located at lowest water level line in the water level line of maximum water level, the fermentation liquid overcurrent area of another filler unit.
The specific structure of the adjacent positive and negative setting of two filler units is that the fermentation liquid overcurrent area of a filler unit is located at The fermentation liquid overcurrent area of stalk filling area upper end, another filler unit is located at stalk filling area lower end.
The stalk filling area is made of charging frame, and charging frame end is provided with bracket, forms fermentation liquid mistake by bracket Flow area.
The charging frame guide groove for fixed charging frame in the horizontal direction, a charging are provided on the installation for fermenting inner wall Frame is correspondingly arranged two charging frame guide grooves.
The length of the filler unit is adapted with the length of installation for fermenting, and the overall weight of filler unit is greater than stalk Buoyancy, two fixing sides are in contact with installation for fermenting inner wall after a filler unit is fixed by two charging frame guide grooves.
The fermentation system further includes liquid reservoirs, and liquid reservoirs are connected by pipeline and inlet pipe and circulation line It connects, control valve is provided on pipeline, liquid feeding pump is provided in inlet pipe, control valve, fluid storage are provided on circulation line Pond is also connected with liquid supplementation pipe.
Water seal weir is provided at the top of the installation for fermenting, installation for fermenting is cooperated by water seal weir and sealing cover water-stop, close Space between capping and maximum water level forms biogas storage area, is provided with biogas pipe on sealing cover.
It is additionally provided with overflow mechanism on the installation for fermenting, overflow mechanism includes overflow pipe and the overflow that connect with overflow pipe Slot, the liquid feeding end and maximum water level of overflow pipe cooperate, and overflow launder is connected to liquid reservoirs by pipeline.
A kind of fermentation process of bee van-type stalk fermentation system, it is characterised in that: section shape stalk or direct bundling it is whole After strain stalk is packed into the stalk filling area of filler unit, filler unit is put into installation for fermenting in the way of a positive and a negative, so Lifting sealing cover and installation for fermenting water-stop cooperate afterwards, and installation for fermenting is made to be in sealed environment;It is connected to inlet pipe, disconnects circulation Pipeline injects fermentation liquid in installation for fermenting, controls the fermentation liquid in installation for fermenting after maximum water level, disconnects inlet tube Road is connected to circulation line, flows fermentation liquid in liquid baffling fermentation channel, and fermentation liquid forms baffling in installation for fermenting, Fermentation liquid is fully penetrated to arrive stalk filling area, makes stalk filling area anaerobic digestion methane production.
Using the present invention has the advantages that
1, the present invention can effectively ensure that sufficiently connecing for anaerobe and stalk object using the structure for copying sealing beehive Touching, improves the fermentation concentration and gas producing efficiency of fermentation reactor, while preventing stalk from floating and crusting, and realizes the smooth disengaging of material Material and simplification operation and maintenance.
2, effective contact area of fermentation liquid Yu stalk fermentation region is expanded using the present invention, enable organic matter with Stalk material is adequately reacted, and the biogas production efficiency of installation for fermenting is improved.It is seeped by the left and right in stalk fermentation area Thoroughly, it effectively takes away organic matter caused by straw degradative to ferment to fluid zone, avoids the accumulation of organic acid.
3, the liquid baffling fermentation channel that the present invention is formed, it is ensured that fermentation liquid forms baffling in installation for fermenting, will not Installation for fermenting rear end is flowed directly to by feeding frame bottom, the anaerobe containing mass efficient in fermentation liquid passes through charging The baffling effect of the arrangement fermentation liquid of frame, can be such that the contact area of anaerobe and fermented organic maximizes;Meanwhile it fermenting The viscous resistance and inertia resistance that the dynamic kinetic energy of liquid stream can be good at overcoming the stalk filling area of charging frame to permeate to fermentation liquid, Fermentation liquid is enabled adequately to penetrate into the stalk filling area of charging frame, to carry out effective fermentation gas.
4, using the present invention, flow fermentation liquid along liquid baffling fermentation channel, during the fermentation, by opening feed liquor Pump and connection circulation line can realize the return stirring of fermentation liquid so that the fermentation liquid in liquid baffling fermentation channel have it is dynamic Can, driving fermentation, also stalk of the fermenting microbe effectively into stalk filling area is permeated, so that fermentation liquid is with the smallest energy Amount investment, realize substance uniformly transfer and the repetition of microorganism fungus kind and fermentation materials contact, to reach optimal stalk hair Ferment effect.
5, after applying the present invention, the biogas that the anaerobic digestion of stalk filling area generates, the channel that can be fermented by liquid baffling obtain To effective release, avoid stalk filling area it is blocked up caused by gas release blockage problem.
6, charging frame guide groove is arranged in installation for fermenting inner wall in the present invention, it can be ensured that filler unit enters after installation for fermenting not It can move in the horizontal direction.
7, the charging frame that the present invention is arranged, primarily serves the entirety of control harvesting stalk, while fermentation liquid is seeped It penetrates into the stalk of charging frame.
Detailed description of the invention
Fig. 1 is fermentation system the schematic diagram of the section structure of the present invention;
Fig. 2 is fermentation system overlooking structure diagram of the present invention.
In the figure, it is marked as 1. liquid reservoirs;2. liquid feeding pump;3. installation for fermenting;4. overflow mechanism;5. water seal weir;6. most High-water line;7. sealing cover;8. biogas pipe;9. biogas storage area;10. filler unit;11. stalk filling area;12. liquid is rolled over Stream fermentation channel;13. fermentation liquid overcurrent area;14. circulation line;15. liquid supplementation pipe;16. feeding frame guide groove, 17, drain pipe.
Specific embodiment
Embodiment 1
A kind of bee van-type stalk fermentation system, including installation for fermenting 3 are provided with sealing cover 7, fermentation dress on installation for fermenting 3 It sets 3 to cooperate with 7 water-stop of sealing cover, multiple direct filler units 10 for loading stalk, filler unit is provided in installation for fermenting 3 10 top surface is located at the maximum water level in installation for fermenting 3, and the bottom surface of filler unit 10 is located at the minimum of 3 bottom of installation for fermenting At water level line;Filler unit 10 includes stalk filling area 11 and the fermentation liquid overcurrent area 13 positioned at 11 end of stalk filling area, phase The positive and negative setting of two filler unit of neighbour 10 is in installation for fermenting 3, through the fermentation liquid overcurrent area 13 of positive and negative setting in installation for fermenting 3 Liquid baffling fermentation channel 12 is formed, the liquid feeding end in liquid baffling fermentation channel 12 is connected with inlet pipe, and outlet end is connected with Circulation line 14.
In the present embodiment, the positive and negative set-up mode of adjacent two filler unit 10 is the fermentation liquid of a filler unit 10 The water level line in overcurrent area 13 is located at maximum water level 6, and the water level line in the fermentation liquid overcurrent area 13 of another filler unit 10 is located at most Low water line.
In the present embodiment, the specific structure of the positive and negative setting of adjacent two filler unit 10 is, filler unit 10 Fermentation liquid overcurrent area 13 is located at 11 upper end of stalk filling area, and the fermentation liquid overcurrent area 13 of another filler unit 10 is located at stalk filling 11 lower end of area.
In the present embodiment, the stalk filling area 11 is made of charging frame, and charging frame end is provided with bracket, passes through bracket Form fermentation liquid overcurrent area 13.
In the present embodiment, the charging frame for fixed charging frame in the horizontal direction is provided on 3 inner wall of installation for fermenting Guide groove 16, a charging frame are correspondingly arranged two charging frame guide grooves 16.
In the present embodiment, the length of the filler unit 10 is adapted with the length of installation for fermenting 3, filler unit 10 it is whole Body weight is greater than the buoyancy of stalk, two fixing sides and fermentation after a filler unit 10 is fixed by two charging frame guide grooves 16 3 inner wall of device is in contact.
In the present embodiment, the fermentation system further includes liquid reservoirs 1, and liquid reservoirs 1 pass through pipeline and inlet tube Road and circulation line 14 connect, and are provided with control valve on pipeline, liquid feeding pump 2 is provided in inlet pipe, is set on circulation line 14 It is equipped with control valve, liquid reservoirs 1 are also connected with liquid supplementation pipe 15.
In the present embodiment, water seal weir 5 is provided at the top of the installation for fermenting 3, installation for fermenting 3 passes through water seal weir 5 and sealing The cooperation of 7 water-stop of lid, the space between sealing cover 7 and maximum water level 6 form biogas storage area 9, are provided with natural pond on sealing cover 7 Tracheae 8.
In the present embodiment, 3 lower part of installation for fermenting is provided with drain pipe 17, and installation for fermenting 3 fermented after a period of time, can By connection drain pipe 17, the fermentation liquid of installation for fermenting 3 is discharged, replaces fermentation liquid, harmful substance is avoided to accumulate.
In the present embodiment, be additionally provided with overflow mechanism 4 on the installation for fermenting 3, overflow mechanism 4 include overflow pipe and with overflow The overflow launder of flow tube connection, the liquid feeding end and maximum water level 6 of overflow pipe cooperate, and overflow launder is connected to fluid storage by pipeline Pond 1.
A kind of fermentation process of bee van-type stalk fermentation system, comprising: the whole strain stalk of section shape stalk or direct bundling After being packed into the stalk filling area of filler unit, filler unit is put into the way of a positive and a negative according to the guidance of charging frame guide groove In installation for fermenting, then lifts sealing cover and installation for fermenting water-stop cooperates, installation for fermenting is made to be in sealed environment;It is connected to feed liquor Pipeline disconnects circulation line, and fermentation liquid is injected in installation for fermenting, controls the fermentation liquid in installation for fermenting in maximum water level Afterwards, inlet pipe is disconnected, circulation line is connected to, flows fermentation liquid in baffling fermentation channel, fermentation liquid is in installation for fermenting Baffling is formed, fermentation liquid and stalk contact area are expanded, keeps fermentation liquid fully penetrated to stalk filling area, and takes away stalk filling Dissolved organic matter caused by degrading in area, makes stalk filling area anaerobic digestion methane production.
Embodiment 2
The present invention will be further described for the present embodiment combination attached drawing.
As illustrated in fig. 1 and 2, the installation for fermenting 3 of bee van-type stalk fermentation system is mainly by filler unit 10,7 and of sealing cover Liquid baffling fermentation channel 12 is constituted.Filler unit 10 includes stalk filling area 11 and the fermentation positioned at 11 end of stalk filling area Liquid overcurrent area 13, stalk filling area is made of charging frame, 3 inner wall of installation for fermenting setting charging frame guide groove 16, to ensure to feed frame It will not be moved in the horizontal direction after into installation for fermenting 3.Charging frame is made of steel bar, primarily serves control harvesting stalk It is whole, while fermentation liquid is penetrated into the stalk of charging frame.The overall weight of filler unit 10 is greater than stalk Buoyancy is sunken to bottom after so that filler unit 10 is entered installation for fermenting 3 always.
The whole strain stalk of section shape or direct bundling (eliminates the process that crushing, rubbing etc. reduce stalk size, while not By feeding devices such as pump, screw-feeders), after being packed into charging frame, according to aligning method shown in FIG. 1, a positive and a negative according to The guidance of charging frame guide groove 16 is put into installation for fermenting 3.Then in lifting sealing cover 7 to water seal weir 5, then in water seal weir 5 Add water, so that entire fermentation system is in sealed environment.Biogas pipe 8 is set on sealing cover 7, to generate for anaerobic digestion to be discharged Biogas.
Fermentation liquid is injected in liquid reservoirs 1, disconnects 14 tunnel of circulation pipe, is connected to liquid supplementation pipe 15, is opened liquid feeding pump 2, is made Fermentation liquid is filled in installation for fermenting 3.Overflow mechanism 4 is set on 3 top of installation for fermenting, realizes effective control of maximum water level 6. Filler unit 10 is put into the highest point after installation for fermenting 3, the as maximum water level 6 of fermentation liquid.Later, liquid supplementation pipe 15 is disconnected, It is connected to circulation line 14, opens liquid feeding pump 2, so that fermentation liquid can flow in liquid baffling fermentation channel 12, is ensured that Fermentation liquid forms baffling in installation for fermenting 3, will not flow directly to 3 rear end of installation for fermenting by feeding frame bottom.In fermentation liquid Anaerobe containing mass efficient is acted on by the baffling of the arrangement fermentation liquid of filler unit 10, can make anaerobe It is maximized with the contact area of fermented organic.Meanwhile the kinetic energy of fermentation liquid flowing can be good at overcoming filler unit 10 The viscous resistance and inertia resistance that fermentation liquid is permeated in stalk filling area 11, enable fermentation liquid adequately to penetrate into filler list The stalk filling area 11 of member 10, to carry out effective fermentation gas.
The biogas that 11 anaerobic digestion of stalk filling area generates, the channel 12 that can be fermented by liquid baffling are effectively released Put, avoid stalk filling area 11 it is blocked up caused by gas release blockage problem.After fermentation, biogas pipe 8 is disconnected, is taken away close Capping 7, then takes out filler unit 10 after fermentation, and replacement fills new stalk, then repeats above-mentioned sealing The input and output material of reactor is completed, reconnects biogas pipe 8, so that it may start anaerobic digestion methane production.
During the fermentation, the return stirring of fermentation liquid can be realized by opening liquid feeding pump 2 and connecting circulation line 14, make Fermentation liquid in liquid baffling fermentation channel 12 has kinetic energy, drive fermentation also fermenting microbe effectively to stalk filling area 11 Interior stalk is permeated so that fermentation liquid with the smallest Energy input, realize substance uniformly transfer and microorganism fungus kind and The repetition of fermentation materials contacts, to reach optimal stalk fermentation effect.
Above-mentioned specific embodiment limits the invention to illustrate the present invention, of the invention In spirit and scope of protection of the claims, to any modifications and changes that the present invention makes, protection model of the invention is both fallen within It encloses.

Claims (10)

1. a kind of bee van-type stalk fermentation system, it is characterised in that: including installation for fermenting (3), be provided on installation for fermenting (3) close It covers (7), installation for fermenting (3) and sealing cover (7) water-stop cooperate, and are provided with multiple direct filling stalks in installation for fermenting (3) Filler unit (10), the top surface of filler unit (10) is located at the maximum water level (6) in installation for fermenting (3), filler unit (10) bottom surface is located at the lowest water level line of installation for fermenting (3) bottom;Filler unit (10) include stalk filling area (11) and Positioned at the fermentation liquid overcurrent area (13) of stalk filling area (11) end, adjacent two filler unit (10) is positive and negative to be arranged in installation for fermenting (3) in, liquid baffling fermentation channel (12) is formed in installation for fermenting (3) by the fermentation liquid overcurrent area (13) of positive and negative setting, The liquid feeding end of liquid baffling fermentation channel (12) is connected with inlet pipe, and outlet end is connected with circulation line (14).
2. bee van-type stalk fermentation system according to claim 1, it is characterised in that: adjacent two filler unit (10) Positive and negative set-up mode is that the water level line in the fermentation liquid overcurrent area (13) of a filler unit (10) is located at maximum water level (6), separately The water level line in the fermentation liquid overcurrent area (13) of one filler unit (10) is located at lowest water level line.
3. bee van-type stalk fermentation system according to claim 2, it is characterised in that: adjacent two filler unit (10) The specific structure of positive and negative setting is that the fermentation liquid overcurrent area (13) of a filler unit (10) is located on stalk filling area (11) End, the fermentation liquid overcurrent area (13) of another filler unit (10) is located at stalk filling area (11) lower end.
4. bee van-type stalk fermentation system according to claim 1,2 or 3, it is characterised in that: the stalk filling area (11) it is made of charging frame, charging frame end is provided with bracket, forms fermentation liquid overcurrent area (13) by bracket.
5. bee van-type stalk fermentation system according to claim 4, it is characterised in that: on installation for fermenting (3) inner wall It is provided with the charging frame guide groove (16) for fixed charging frame in the horizontal direction, a charging frame is correspondingly arranged two charging frames and leads Slot (16).
6. bee van-type stalk fermentation system according to claim 5, it is characterised in that: the length of the filler unit (10) It is adapted with the length of installation for fermenting (3), the overall weight of filler unit (10) is greater than the buoyancy of stalk, a filler unit (10) two fixing sides are in contact with installation for fermenting (3) inner wall after being fixed by two charging frame guide grooves (16).
7. bee van-type stalk fermentation system according to claim 6, it is characterised in that: the fermentation system further includes liquid Storage pool (1), liquid reservoirs (1) are connect by pipeline with inlet pipe and circulation line (14), and control is provided on pipeline Valve is provided with liquid feeding pump (2) in inlet pipe, control valve is provided on circulation line (14), liquid reservoirs (1) are also connected with Liquid supplementation pipe (15).
8. bee van-type stalk fermentation system according to claim 7, it is characterised in that: set at the top of the installation for fermenting (3) It is equipped with water seal weir (5), installation for fermenting (3) is cooperated by water seal weir (5) and sealing cover (7) water-stop, sealing cover (7) and highest water Space between bit line (6) forms biogas storage area (9), is provided with biogas pipe (8) on sealing cover (7).
9. bee van-type stalk fermentation system according to claim 8, it is characterised in that: also set on the installation for fermenting (3) Be equipped with overflow mechanism (4), overflow mechanism (4) includes overflow pipe and the overflow launder that connect with overflow pipe, the liquid feeding end of overflow pipe with Maximum water level (6) cooperation, overflow launder are connected to liquid reservoirs (1) by pipeline.
10. the fermentation process of bee van-type stalk fermentation system according to claim 1, it is characterised in that: section shape stalk or After the whole strain stalk of the direct bundling of person is packed into the stalk filling area of filler unit, filler unit is put into the way of a positive and a negative In installation for fermenting, then lifts sealing cover and installation for fermenting water-stop cooperates, installation for fermenting is made to be in sealed environment;It is connected to feed liquor Pipeline disconnects circulation line, and fermentation liquid is injected in installation for fermenting, controls the fermentation liquid in installation for fermenting in maximum water level Afterwards, inlet pipe is disconnected, circulation line is connected to, flows fermentation liquid in liquid baffling fermentation channel, fermentation liquid is filled in fermentation Interior formation baffling is set, fermentation liquid is fully penetrated to arrive stalk filling area, makes stalk filling area anaerobic digestion methane production.
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