CN107574114A - The hydraulic type biomass pool and its automatic feed/discharge method of a kind of automatic feed/discharge - Google Patents
The hydraulic type biomass pool and its automatic feed/discharge method of a kind of automatic feed/discharge Download PDFInfo
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- CN107574114A CN107574114A CN201710647218.XA CN201710647218A CN107574114A CN 107574114 A CN107574114 A CN 107574114A CN 201710647218 A CN201710647218 A CN 201710647218A CN 107574114 A CN107574114 A CN 107574114A
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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 present invention relates to a kind of hydraulic type biomass pool of automatic feed/discharge and its automatic feed/discharge method, belong to regenerative resource fermentation field, including fermentation vat and the feed pipe and water pressure chamber that communicate therewith, also include the automatic feeding and discharging device for crossing feed pipe, fermentation vat and water pressure chamber, automatic feeding and discharging device includes pipe chain type conveyor belt and drive device；Pipe chain type conveyor belt includes delivery pipe and driving-chain, and drive device driving driving-chain is driven；Pipe chain type conveyor belt extrudes to form the first bending end and the second bending end, and the first bending end is connected to fermentation vat and feed pipe connectivity part, which is provided with charging aperture；The inside of second bending end sets drive device, and outside is provided with discharging opening；Delivery pipe is provided with micropore.The methane-generating pit both effectively alleviates dependence of the domestic methane tank input and output material between twenty and fifty labour, the source of biogas fermentation material is expanded further through the utilization to stalk, environmental pollution caused by also reducing crop straw burning simultaneously, plays significant role in terms of energy-saving and emission-reduction.
Description
Technical field
The present invention relates to regenerative resource fermentation technical field, in particular it relates to a kind of hydraulic type natural pond of automatic feed/discharge
Gas pond and its automatic feed/discharge method.
Background technology
Biogas be organic substance in anaerobic environment, microorganism is passed through under conditions of certain temperature, humidity, acid-base value
A kind of fuel gas caused by fermentation decomposition, biogas fermentation are widely present in the natural environments such as lake bog chic sale, but
It is that this is outstanding in vast rural area with the development of society, people are continuously attempted to by construction of marsh gas tank come artificial Biogas
To be common, biogas is produced using fermentations such as house refuse, human and animal excretas, the biogas of preparation is available for producing and used in living, not only
The energy can be saved, moreover it is possible to improve rural environment.With Chinese biogas scientific technological advance and Country Household Using Marsh Gas " three combine ",
The popularization of " quaternity " methane-generating pit, rural area popularity is hydraulic type biomass pool at present, and it is that China promotes earliest, current number
Measure most pond types, have the advantages that reasonable stress, simple in construction, easy for construction, strong adaptability, gather materials on the spot, cost it is relatively low.
But either national standard methane-generating pit or the hydraulic type biomass pool of various modifications, it is easy to there is scum silica frost in pond in varying degrees
Crust, fermentation materials utilization rate be not high and the problems such as input and output material labor intensity is big.In addition, in recent years with a large amount of rural areas of urbanization
Between twenty and fifty labour's immigrant laborers cause rural laborer to lack, and old and weak people, women and children participates in traditional methane tank maintenance management, particularly
Security incident happens occasionally during big discharging；And with new countryside construction and cultivation it is intensive, cause people, animal poultry manure
Deng biogas fermentation deficiencies of stores, cause a large amount of domestic methane tanks to be in and partly fall into disuse state.
At the same time, the agricultural crop straw byproduct maximum as quantity in agricultural production, with the improvement of living standards,
Household electrical appliance, coal gas use increasingly extensive, the slump in demand to faggot, and there have been a large amount of residues of stalk.Due to existing straw
Stalk processing mode cost is too high, but under the influence of one season crops sowing.On-site incineration stalk turns into a kind of helpless selection, both
The wasting of resources is caused, brings serious problem of environmental pollution again.If stalk and biogas can be effectively combined development
Household biogas, reproducible high-quality biomass resource was both saved, has protected environment again, if but will in conventional manure fermentation method
Reacted in stalk input hydraulic type biomass pool, the problems such as stalk easily floats, is unable to complete fermentation and is not easy to slag tap again be present.
The content of the invention
Bottleneck in terms of the defects of existing for above-mentioned existing methane-generating pit and stalk recycling, the present invention provide a kind of automatic
The hydraulic type biomass pool and its automatic feed/discharge method of input and output material, domestic methane tank input and output material was both effectively alleviated between twenty and fifty labor
The dependence of power, the source of biogas fermentation material is expanded further through the utilization to stalk, while also reduces agricultural crop straw
Environmental pollution caused by burning, plays significant role in terms of energy-saving and emission-reduction.
A kind of hydraulic type biomass pool of automatic feed/discharge, including fermentation vat and the feed pipe and water that are communicated with fermentation vat pond body
Between pressure, it is characterised in that：The automatic feeding and discharging device for crossing feed pipe, fermentation vat and water pressure chamber is set in methane-generating pit, it is described
Automatic feeding and discharging device includes ring pipe chain type conveyor belt and the drive device being fixed on water pressure chamber lateral wall；The pipe chain type
Conveyer belt includes delivery pipe and the driving-chain being installed in delivery pipe, drives driving-chain to be driven by drive device；It is described
Pipe chain type conveyor belt extrudes to form the first bending end and the second bending end, and first bending end is connected to fermentation vat and feed pipe
Connectivity part and the charging aperture by being arranged in delivery pipe make pipe chain type conveyor belt be connected with feed pipe, second bending end
Inside sets drive device, and discharging opening is additionally provided with outside the second bending end；Being provided with the delivery pipe of pipe chain type conveyor belt can
Dissipate the micropore of excessive biogas.
Further, the drive device include be fixed on water pressure chamber lateral wall to gear, with ratchet center
The lever of axis connection and the ball float for being connected to lever free end；It is described to be meshed to gear with the driving-chain of pipe chain type conveyor belt,
Ball float buoyancy after lever expands is changed into power and then drives driving-chain to be driven by the ratchet.
Further, the ratchet includes 6 gear teeth, and each gear teeth are provided with the key seat for engaged transmission chain.
Further, the driving-chain is made up of multiple end to end chains, is placed equidistant on the driving-chain multiple
Driver plate, the driver plate fitting conveying inside pipe wall simultaneously move with driving-chain.
Further, the lever and ball float are respectively positioned in water pressure chamber, and ball float is produced by the liquid surface lifting in water pressure chamber
Buoyancy.
Further, provided between the connection connected with water pressure chamber, the lever in connecting, passes through connection with ball float
Interior liquid surface lifting produces ball float buoyancy.
Further, the automatic feeding and discharging device is removably mounted in methane-generating pit.
The present invention also provides a kind of automatic feed/discharge method of above-mentioned methane-generating pit：The fermentation materials added from feed pipe are passed through
Charging aperture is sent into pipe chain type conveyor belt；Utilize hydraulic type biomass pool fermentation gas, the water pressure chamber feed liquid liquid level liter caused by gas
Power is dropped, is driven by the driving-chain in drive device driving tube chain type conveyor belt, fermentation materials pass through fermentation vat therewith, detest
Biogas caused by aerobe fermentation overflows；Remaining ferment material lagging is moved to discharging opening simultaneously in pipe chain conveying pipe with conveyer chain
It is automatically discharged into outside hydraulic type biomass pool, completes automatic feed/discharge.
Further, the automatic feed/discharge method, comprises the following steps：
A) feed liquid is added into hydraulic type biomass pool, the feed liquid in fermentation vat, feed pipe and water pressure chamber is in same level；
B) aerogenesis and gas is used：During aerogenesis, fermentation materials are added from feed pipe and pipe chain type conveyor belt is entered by charging aperture
In, fermentation materials anaerobic fermentation produces biogas, and biogas overflows through the micropore on pipe chain conveying band, and biogas continued accumulation is fermenting
Pressure is produced in pond above feed liquid, when pressure is more than atmospheric pressure, force the part feed liquid in fermentation vat enter water pressure chamber it is interior or
Enter via water pressure chamber in connection, water pressure chamber or the interior feed liquid water level of connection is increased, ball float rises and risen with water level；With
During gas, biogas exports, and pressure reduces above feed liquid in fermentation vat, and water pressure chamber or the interior feed liquid water level decreasing of connection, ball float is with water
Position declines and declined；
C) motion is risen or fallen with aerogenesis repeatedly or with gas, ball float, caused power reaches ratchet through lever；
Ratchet directional rotating drives transmission Chain conveyer in pipe chain type conveyor belt, moves forward fermentation materials, is moved to discharging opening
Remaining ferment material is discharged, conveyer chain continues to drive to charging aperture, participates in next round circulation, completes automatic feed/discharge.
Beneficial effects of the present invention：
1st, methane-generating pit of the present invention is to be based on automatic feeding and discharging device, and the device increases on the basis of original hydraulic type biomass pool
Ball float-lever power drive device and pipe chain type conveyor belt are added, using hydraulic type biomass pool " fermentation gas " with " using consumption
Power caused by water pressure chamber liquid surface lifting caused by gas ", the biogas fermentation material in delivery pipe is driven from hydraulic methane
The charging aperture in pond enters fermentation vat and completes anaerobic fermentation gas production, and residual residue is discharged from discharging opening with pipe chain type conveyor belt, completed
The automatic feed/discharge of methane-generating pit, reduce the labor intensity of family hydraulic type biomass pool management；In the process, pipe chain type is utilized
The renewable raw material of substance closing such as excrement, stalk is passed through fermentation vat by conveyer belt, is discharged outside methane-generating pit, is reduced after fermentation gas
Biogas fermentation material reduces big discharging frequency, extends biogas usage time in the deposition of sweathouse, improve utilization rate of tank volume and
Fermentation efficiency；In addition, the fermentation raw material integrally closed such as excrement, stalk is completed into fermentation under liquid level, solve excrement, stalk etc.
Biogas fermentation material easily floats, crust caused by gas producing efficiency it is low the problem of；Biogas fermentation material is wrapped in complete in delivery pipe
Into fermentation gas, fermentative microorganism is attached to duct wall and fully contacted with fermentation materials, as fermentation materials move ahead, reduces
Phenomena such as " fermentation blind area " and " feed liquid short circuit ".
2nd, the automatic feed/discharge method of methane-generating pit of the present invention can not only solve traditional methane tank and use and safeguard
To the dependence of labour in journey, it can also expand the source of biogas fermentation material by the utilization to stalk, by straw utilization house lead in
With in methane-generating pit.It so can both strengthen the comprehensive utilization of stalk, reduce the environmental pollution brought due to crop straw burning, again can be with
Ensure the development of household biogas, reach the purpose of energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is the Structure of cross section schematic diagram of methane-generating pit described in embodiment 1；
Fig. 2 is the Structure of cross section schematic diagram of methane-generating pit described in embodiment 2；
Fig. 3 is the schematic diagram with water pressure chamber after gas；
Fig. 4 is the schematic diagram of water pressure chamber after aerogenesis；
Fig. 5 is the internal structure schematic diagram of pipe chain type conveyor belt；
Fig. 6 is the structural representation of drive device；
Wherein：1st, fermentation vat；2nd, feed pipe；3rd, water pressure chamber；4th, automatic feeding and discharging device；5th, pipe chain type conveyor belt；51st, convey
Pipe；52nd, driving-chain；521st, chain；522nd, driver plate；6th, drive device；61st, ratchet；611st, the gear teeth；612nd, key seat；62、
Lever；63rd, ball float；7th, charging aperture；8th, discharging opening；9th, micropore；10th, between connecting；11st, linker.
Embodiment
The present invention is further explained below by specific embodiment.
Embodiment 1
A kind of hydraulic type biomass pool of automatic feed/discharge, as shown in figure 1, entering including fermentation vat 1 and with what the pond body of fermentation vat 1 communicated
Expects pipe 2 and water pressure chamber 3, in addition to the automatic feeding and discharging device 4 of feed pipe 2, fermentation vat 1 and water pressure chamber 3 is crossed, the automatic disengaging
Material device 4 can according to circumstances dismantle disengaging or be installed in methane-generating pit；The automatic feeding and discharging device 4 includes pipe chain type conveyor belt
5 and drive device 6；The pipe chain type conveyor belt 5 is (as shown in Figure 5) including delivery pipe 51 and the driving-chain being installed in delivery pipe
52；The driving-chain 52 is made up of multiple end to end chains 521, and multiple driver plates are placed equidistant on the driving-chain 52
522, the driver plate 522 is bonded the inwall of delivery pipe 51 and moved with driving-chain 52；The bag (as shown in Figure 6) of drive device 6
Include the lever 62 of the ratchet 61 being fixed on the lateral wall of water pressure chamber 3 and the center axis connection of ratchet 61 and be connected to thick stick
The ball float 63 of the free end of bar 62；The ratchet 61 includes 6 gear teeth 611, and each gear teeth are provided with key seat 612, key seat 612
Delivery pipe 51 is inserted through to be meshed with the driving-chain 52 inside delivery pipe 51；The lever 62 and ball float 63 are respectively positioned on water pressure chamber 3
Interior, ball float 63 can lift with the lifting of liquid level in water pressure chamber 3, produce buoyancy, and then after buoyancy is expanded by lever 62
Ratchet 61 is transmitted to, the stress of ratchet 61 can drive driving-chain 52 to be driven when rotating；
The extruding of pipe chain type conveyor belt 5 forms the first bending end and the second bending end, first bending end are connected to fermentation
Pond 1 is with the connectivity part of feed pipe 2 and the charging aperture 7 by being arranged in delivery pipe 51 makes pipe chain type conveyor belt 5 connect with feed pipe 2
Logical, the inside of second bending end is provided with drive device 6, and discharging opening 8 is additionally provided with outside the second bending end；It is defeated in pipe chain type
The delivery pipe 51 of band 5 is sent to be provided with the micropore 9 that can dissipate excessive biogas.
For methane-generating pit in non-aerogenesis, feed pipe 2, fermentation vat 1, the feed liquid of water pressure chamber 3 are in same level.Work as fermentate
Material directly can be entered in pipe chain type conveyor belt 5 after the entrance of feed pipe 2 by charging aperture 7, make fermentate with the transmission of driving-chain 52
Material is moved forward, and anaerobic fermentation reaction is carried out into fermentation vat 1, and through microbial fermentation decomposition, caused biogas passes through delivery pipe
Micropore 9 on 51 is overflowed, and biogas is risen between the air storage at the top of fermentation vat 1, with the continued accumulation of biogas just produce it is certain
Pressure, when biogas pressure exceedes atmospheric pressure, the air pressure constantly increased forces the part feed liquid in methane-generating pit fermentation vat 1 to enter
In the water pressure chamber 3 communicated with pond body, water level decreasing in fermentation vat 1, water level rises in water pressure chamber 3, the ball float 63 in water pressure chamber 3 with
Water level rises and risen, as shown in Figure 4.
During with gas, biogas output, the pressure between the top air storage of fermentation vat 1 is gradually reduced, and the feed liquid of water pressure chamber 3 is back to hair
Ferment pond 1 is to maintain the new balance of inside and outside pressure, and the water level of fermentation vat 1 rises, the water level decreasing of water pressure chamber 3, the ball float 63 in it with
Water level decreasing and decline, as shown in Figure 3.So constantly " aerogenesis " and " with gas " causes the liquid level water level of water pressure chamber 3 to lift repeatedly,
Ball float 63 also lifts repeatedly, and ball float 63 lifts caused buoyancy and is transmitted to ratchet 61, the stress of ratchet 61 hair through lever 62
Raw to rotate so as to drive driving-chain 52 to be driven, leftover materials continue to move to the direction of discharging opening 8 with driving-chain 52, move
Move to during discharging opening 8 and discharge leftover materials, it is vacant in pipe chain type conveyor belt 5 afterwards, it is back to a reception new round at charging aperture 7
Fermentation materials continue to transmit, so repeatedly.
If aerogenesis is very little, biogas speed does not catch up with and needed with gas caused by fermentation vat 1, then the water level of fermentation vat 1 will be gradual
Gradually equal with the water level of water pressure chamber 3, final pressure difference disappears, and biogas can stop exporting.
Embodiment 2
With being substantially the same described in embodiment 1, difference is methane-generating pit (as shown in Figure 2) described in embodiment 2：One connection is set
Between 10,10 by linker 10 and the UNICOM of water pressure chamber 3 between the connection, 10 bottom surface and the floor height phase of water pressure chamber 3 between connection
Together, the one end of linker 11 is arranged between connection 10 bottom, and the other end is arranged on the bottom of water pressure chamber 3.The ball float 63 is located at
In 10 between connection, lever 62 is in bending shape, connection ball float 63 and the ratchet 61 being fixed on the lateral wall of water pressure chamber 3.Its
Its structure and application method are same as Example 1.
Embodiment 1 or embodiment 2 are all to drive driving-chain to be driven by power caused by ball float lifting and then realize automatic
Input and output material, in order to illustrate that power pulls driving-chain to be driven enough caused by ball float, there is provided following to prove：
Water pressure chamber is with long 1.14m, exemplified by wide 0.57m specifications：
Water pressure chamber floor space=1.14 × the ㎡ of 0.57 ≈ 0.64；
It is about 0.25 ㎡ that a family of five, which cooks consume biogas each time,；
The Ideal-Gas Equation
Gas is considered from fermentation vat to water pressure chamber pressure change, the ㎡ of V ≈ 0.21；
The ≈ 0.33m of water pressure chamber level change h=0.21 ÷ 0.64；
Conventional floating ball diameter is about 0.2m, and buoyancy is about 40N；
Using ball float buoyancy as power：
Power arm=lever length+ball float radius=1m；
Power arm remote branch of a clan point end movement X=hcos θ ≈ 0.3m；
Ratchet is stirred to rotate once；
The remote support end power F of power arm1=FIt is floating·cosθ≈35N；
Ratchet is 0.08m from radius；
FIt is dynamic·lIt is dynamic=FResistance·lResistance
Ratchet can lift about 43.8 ㎏ object vertically to the active force of conveyer chain, and fermentation materials oblique fortune in water
Move and have buoyancy, FDraw=438N, using the teaching of the invention it is possible to provide power needed for transmission chain movement.
It should be noted that above example is only illustrative, do not limited the scope of the invention with this, for
For one of ordinary skill in the art, the equal replacement done without departing from the principles and spirit of the present invention, repair
Change and modification, belong to protection scope of the present invention.
Claims (9)
1. a kind of hydraulic type biomass pool of automatic feed/discharge, including fermentation vat（1）And and fermentation vat（1）The feed pipe that pond body communicates
（2）And water pressure chamber（3）, it is characterised in that：Also include crossing feed pipe（2）, fermentation vat（1）And water pressure chamber（3）Automatic disengaging
Expect device（4）, the automatic feeding and discharging device（4）Including ring pipe chain type conveyor belt（5）Be fixed on water pressure chamber（3）Lateral wall
On drive device（6）；The pipe chain type conveyor belt（5）Including delivery pipe（51）With the driving-chain being installed in delivery pipe
（52）, pass through drive device（6）Drive driving-chain（52）It is driven；The pipe chain type conveyor belt（5）It is curved that extruding forms first
Folding end and the second bending end, first bending end are connected to fermentation vat（1）With feed pipe（2）Connectivity part is simultaneously defeated by being arranged on
Send pipe（51）On charging aperture（7）Make pipe chain type conveyor belt（5）With feed pipe（2）Connection, the inside of second bending end is set
Put drive device（6）, discharging opening is additionally provided with outside the second bending end（8）；In pipe chain type conveyor belt（5）Delivery pipe（51）On
Provided with the micropore that can dissipate excessive biogas（9）.
2. methane-generating pit as claimed in claim 1, it is characterised in that：The drive device（6）Including being fixed on water pressure chamber（3）Outside
Ratchet in side wall（61）With ratchet（61）The lever of center axis connection（62）Be connected to lever（62）Free end
Ball float（63）；The ratchet（61）With pipe chain type conveyor belt（5）Driving-chain（52）It is meshed, the ratchet
（61）Will be through lever（62）Ball float after expansion（63）Buoyancy changes into power and then drives driving-chain（52）It is driven.
3. methane-generating pit as claimed in claim 2, it is characterised in that：The ratchet（61）Including 6 gear teeth（611）, often
The individual gear teeth, which are provided with, is used for engaged transmission chain（52）Key seat（612）.
4. methane-generating pit as claimed in claim 1 or 2, it is characterised in that：The driving-chain（52）By multiple end to end chains
Bar（521）Composition, the driving-chain（52）On be placed equidistant multiple driver plates（522）, the driver plate（522）It is bonded delivery pipe
（51）Inwall and with driving-chain（52）It is mobile.
5. methane-generating pit as claimed in claim 2, it is characterised in that：The lever（62）And ball float（63）It is respectively positioned on water pressure chamber
（3）It is interior, pass through water pressure chamber（3）Interior liquid surface lifting produces ball float（63）Buoyancy.
6. methane-generating pit as claimed in claim 2, it is characterised in that：It is provided with and water pressure chamber（3）Between the connection of connection（10）；It is described
Lever（62）And ball float（63）Between connection（10）It is interior, by between connection（10）Interior liquid surface lifting produces ball float（63）It is floating
Power.
7. such as methane-generating pits of the claim 1-6 as described in any one, it is characterised in that：The automatic feeding and discharging device（4）It is removable
Unload and be installed in methane-generating pit.
8. using the automatic feed/discharge method of methane-generating pit as claimed in claim 7, it is characterised in that：Will be from feed pipe（2）Add
Fermentation materials through charging aperture（7）It is sent into pipe chain type conveyor belt（5）It is interior；Caused using hydraulic type biomass pool fermentation gas, with gas
Water pressure chamber（3）Interior feed liquid liquid surface lifting power, by drive device（6）Driving tube chain type conveyor belt（5）Interior driving-chain（52）
It is driven, fermentation materials pass through fermentation vat therewith（1）, biogas spilling caused by anaerobic fermentation；Remaining ferment material lagging in
Pipe chain conveying pipe（5）It is interior, with conveyer chain（52）It is moved to discharging opening（8）And be automatically discharged into outside hydraulic type biomass pool, complete
Automatic feed/discharge.
9. automatic feed/discharge method as claimed in claim 8, it is characterised in that：Comprise the following steps：
a）Feed liquid is added into hydraulic type biomass pool, makes fermentation vat（1）, feed pipe（2）And water pressure chamber（3）In feed liquid same
On horizontal plane；
b）Aerogenesis and use gas：During aerogenesis, by fermentation materials from feed pipe（2）Add and pass through charging aperture（7）Enter pipe chain type
Conveyer belt（5）In, fermentation materials anaerobic fermentation produces biogas, and biogas is through pipe chain type conveyor belt（5）On micropore（9）Overflow, natural pond
Gas continued accumulation is in fermentation vat（1）Pressure is produced above middle feed liquid, when pressure is more than atmospheric pressure, forces fermentation vat（1）Interior
Part feed liquid enters water pressure chamber（3）It is interior or via water pressure chamber（3）Into between connection（10）It is interior, make water pressure chamber（3）Or between connection
（10）Interior feed liquid water level rises, ball float（63）Rise with water level and rise；During with gas, biogas output, fermentation vat（1）In middle feed liquid
Square pressure reduces, water pressure chamber（3）Or between connection（10）Interior feed liquid water level decreasing, ball float（63）Decline with water level decreasing；
c）With aerogenesis repeatedly or with gas, ball float（63）Motion is risen or fallen, caused power is through lever（62）Reach
Ratchet（61）；Ratchet（61）Directional rotating drives pipe chain type conveyor belt（5）Interior conveyer chain（52）Transmission, makes fermentate
Material moves forward, and is moved to discharging opening（8）Remaining ferment material is discharged, conveyer chain（52）Continue to drive to charging aperture（7）, ginseng
Circulated with next round, complete automatic feed/discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647218.XA CN107574114B (en) | 2017-08-01 | 2017-08-01 | Hydraulic methane tank capable of automatically feeding and discharging materials and automatic feeding and discharging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647218.XA CN107574114B (en) | 2017-08-01 | 2017-08-01 | Hydraulic methane tank capable of automatically feeding and discharging materials and automatic feeding and discharging method thereof |
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| Publication Number | Publication Date |
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| CN107574114A true CN107574114A (en) | 2018-01-12 |
| CN107574114B CN107574114B (en) | 2021-02-19 |
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| CN112063500A (en) * | 2020-08-24 | 2020-12-11 | 浙江科技学院 | High-concentration anaerobic fermentation equipment |
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| CN107574114B (en) | 2021-02-19 |
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