CN205821340U - A kind of large-sized biogas solid-state fermentation installation - Google Patents
A kind of large-sized biogas solid-state fermentation installation Download PDFInfo
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- CN205821340U CN205821340U CN201620364150.5U CN201620364150U CN205821340U CN 205821340 U CN205821340 U CN 205821340U CN 201620364150 U CN201620364150 U CN 201620364150U CN 205821340 U CN205821340 U CN 205821340U
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- fermentation
- reactor
- fermentation vat
- biogas
- installation
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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 utility model discloses a kind of large-sized biogas solid-state fermentation installation, including fermentation zone and the UASB reactor being located at side, described fermentation zone, described UASB reactor includes reactor body, described reactor body top is respectively equipped with reactor air vent and reactor liquid outlet, and bottom is provided with reactor inlet；Described fermentation zone includes the many groups fermentation vat building underground in, often group fermentation vat includes some fermentation vats being coated with printing opacity canopy, described fermentation vat is cylinder, center is provided with duct type column, described fermentation vat top is stretched out in described column upper end, described column lower end stretches into bottom described fermentation vat, and described column lower end is arranged with filter mantle, by laying some pedals formation crossbeam platform between described column and described support.Compared with prior art, this utility model simple in construction, reasonable in design, not only save space, and be provided with UASB reactor and biogas slurry is carried out ferment in second time, improve the level of resources utilization of biogas slurry raw material.
Description
Technical field
This utility model relates to rural energy recycling field, is specifically related to a kind of large-sized biogas solid-state fermentation installation.
Background technology
Along with China's expanding economy, the progress of society, life of urban resident is further improved, but urban residents
Life still suffers from a lot of problem.For building a well-off society in an all-round way, building Socialist New seems the most necessary, and this just requires
Development rural ecological mode of agriculture, improves rural environment, the ambitious goal increased farmers' income.Wherein comprehensively utilize biogas
Pond is exactly the important channel changing rural environment, builds a methane-generating pit and can use about 20 years, and comprehensive utilization makes good use of natural pond
Gas pond is possible not only to save the energy, improve and protect environment, also has and saves chemical fertilizer and pesticide, the yield of raising crops and matter
Amount, the many benefits such as development of animal husbandry of promoting and drive.Biogas, as a kind of new forms of energy, is advocated for country always energetically, makees
Important development target for rural area is treated.Traditional methane-generating pit is to build on the ground, does not only take up larger space, and unfavorable
In Winter protection and safe overwintering；Being shaped as rectangle, owing to there being four angles, difficulty of construction is bigger, and in methane-generating pit, stress is held
The most uneven, discharging is inconvenient；Methane-generating pit stirs inconvenience on the ground, not only needs to set up overhead stirring above methane-generating pit
Mix, and inconvenient when feeding.Solid anaerobic digestion technique the most at home and abroad develops quickly, is to utilize in a mild condition
Biomass are had unit to decompose by anaerobe, and product has higher fertilizer efficiency, especially synchronize to produce in a large number with high heating value first
Alkane is the biogas combustible gas of main component and has the potentiality substantially reducing greenhouse gas emission, is considered and is divided by life cycle
Analysis confirmation is one of matters, the most promising Biomass Energy Utilization technology, and its application surface is the widest, and it is that biogas slurry realizes resource
The feasible process technique of a kind of technology maturation changed, had both solved problem of environmental pollution, and can obtain again preferable economic benefit.
Utility model content
For solving drawbacks described above, the purpose of this utility model is to provide a kind of large-sized biogas solid-state fermentation installation, not only side
Just build, and be favorably improved the fermentation efficiency of methane-generating pit, moreover it is possible to ensure the insulation in winter, improve the resource of fermentation raw material
Utilization ratio.
For reaching above-mentioned purpose, this utility model adopts the technical scheme that: a kind of large-sized biogas solid-state fermentation installation, bag
Including fermentation zone and be located at the UASB reactor of side, described fermentation zone, described UASB reactor includes reactor body, described instead
Answering device bodies top to be respectively equipped with reactor air vent and reactor liquid outlet, bottom is provided with reactor inlet, and inside is provided with
Three phase separator；Described fermentation zone includes the many groups fermentation vat building underground in, and often group fermentation vat includes some being coated with printing opacity canopy
Fermentation vat, described fermentation vat is cylinder, and center is provided with duct type column, and described column upper end is stretched out on described fermentation vat
Portion, described column lower end stretches into bottom described fermentation vat, and described column lower end is arranged with filter mantle, around described fermentation vat also
It is provided with some supports, by laying some pedals formation crossbeam platform, described crossbeam platform, phase between described column and described support
Neighbour often organizes and is equipped with guide rail between fermentation vat, described guide rail headtotail, and described guide rail is provided with track travel car, described track
Moving trolley is connected by mechanical arm discharging grab jaw；Gas storage film, institute it is additionally provided with above described fermentation vat and between described crossbeam platform
Stating the connection of gas storage film and have sludge gas collecting device, described sludge gas collecting device is also connected with described reactor air vent；Described fermentation
Being additionally provided with some feed pipes around pond, described feed pipe end is provided with general-purpose interface；If being further fixed on below described crossbeam platform
Dry spray piping, on described spray piping, corresponding described fermentation vat is laid with some spouts；Biogas slurry is passed through in described column upper end
Pipeline connects has the first circulating pump, described first circulating pump to be connected with described reactor inlet, and described reactor liquid outlet leads to
Crossing biogas slurry pipeline connection has the second circulating pump, described second circulating pump to be connected with described spray piping；Described fermentation vat also by
Pipeline is to being externally connected with solar heat collector.
Preferably, set inside described biogas slurry pipeline and all have drainage screen.
Water supply installation and heat insulation and heating equipment have been also respectively connected with it outside described UASB reactor.
Described fermentation vat top is additionally provided with the liquid level sensor with warning function.
It is also arranged above barrier at described filter mantle bottom described fermentation vat.
Described reactor air vent connects has tee T, described tee T the second end to be connected with described sludge gas collecting device,
Three-terminal link has biogas burner.
Described tee T the 3rd end and described biogas burner junction are provided with switch valve.
Described large-sized biogas solid-state fermentation device also includes that electric control gear, described electric control gear control described track row respectively
Mule carriage, described discharging grab jaw, described first circulating pump, described second circulating pump and the operation of described liquid level sensor, Qi Zhongsuo
State electric control gear and control the mobile lifting folding with described discharging grab jaw of driving of described track travel car.
This utility model comprises the following steps in use:
1) raw material that described large-sized biogas solid-state fermentation installation uses is straw and human and animal excreta, described straw and animal excreta
Just input amount is 20～30:1 to perform according to carbon-nitrogen ratio, and the straw after pulverizing is to direct plunge into fermentation vat, people by input amount
Animal manure will pass through the general-purpose interface of the transhipment tank car described feed pipe end of connection and fills, when mixed raw material is filled into
During required liquid level, described liquid level sensor can be reported to the police, and now stops filling；
2) described fermentation vat connects solar heat collector and outside printing opacity canopy respectively fermentation vat is carried out heating and
Insulation, mixing raw material by fermentation after, the biogas produced in described fermentation vat enters in gas storage film and temporarily stores, and passes through institute
State the collection of sludge gas collecting device and carry utilization；
3), after fermenting raw materials a period of time to be mixed, part is sent out by described fermentation vat by biogas slurry pipeline and the first circulating pump
Liquid mixing raw material after ferment is sent in described UASB reactor and is fermented, and the biogas produced in described UASB reactor is also
It is collected by described sludge gas collecting device, after collection biogas to certain time, by biogas slurry pipeline and the second circulating pump
Connect spray piping, by UASB reactor by fermentation after liquid mixing raw material again spray in described fermentation vat,
Again ferment, gas storage film and sludge gas collecting device persistent collection biogas；
4) fermenting raw materials to be mixed is complete, is taken out by the raw material in fermentation vat by the discharging grab jaw on track travel car,
And it is reentered into new mixing raw material by transhipment tank car.
Preferably, above-mentioned steps 3) described in the biogas that produces in UASB reactor too much time, open switch valve, pass through
Biogas burner burns unnecessary biogas.
This utility model mixes raw material by fermentation after, the biogas produced in described fermentation vat enters in gas storage film and carries out
Temporarily store, and carried utilization by the collection of described sludge gas collecting device, saved the setting of biogas storeroom, subtracted
Lack investment；The interpolation of mixing raw material is 20～30:1 to perform according to carbon-nitrogen ratio by this utility model, farthest protects
Demonstrate,prove fermentation vat at interim lasting equilibrium and the aerogenesis of abundance of fermenting；The solar heat collector that described fermentation vat connects is used for
Heating in pond and insulation；The duct type column being provided with in this utility model, serves not only as the support of crossbeam platform, moreover it is possible to as
Extract the passage of biogas slurry, filter mantle that column lower end is provided with and barrier out, when being to prevent from extracting out biogas slurry, have foreign material to impede, side
Extract biogas slurry the most as early as possible out；This utility model is provided with many group fermentation vats and carries out one time fermentation, by crossbeam platform, adjacent often organizes fermentation
The track travel car being provided with between pond and discharging grab jaw, can be controlled automatically at diverse location and facilitate discharging, be directly placed into and stop after discharging
In the car of periphery；The printing opacity canopy that described fermentation vat is also arranged above, has and fermentation vat heats the function taken shelter from rain；Described crossbeam
Being provided with of platform, the convenient work carrying out some installing components above fermentation vat and observing ferment effect；Described fermentation vat leads to
Cross the first circulating pump and liquid pipeline and the biogas slurry substantially the fermented described UASB reactor of feeding will carry out ferment in second time, then
Connect spray piping by biogas slurry pipeline again, the biogas slurry after ferment in second time is sprayed into again in described fermentation vat, can effectively alleviate
Resistance, plays stirring action when solid fermentation, improves the resource utilization of fermentation raw material.
The UASB reactor used in this utility model preferably can carry out secondary to the biogas slurry after one time fermentation and send out
Ferment, owing to itself retains a large amount of anaerobic sludge in reaction zone, bottom, has good sedimentation function and cohesion performance, locate
The biogas slurry of reason flows into from anaerobic mud bed bottom to carry out mixing with anaerobic sludge and contacts, in the microbial decomposition sewage in mud
Organic substance, is converted into biogas it, and biogas is constantly released with micro-bubble form, and micro-bubble, in uphill process, constantly closes
And, gradually form bigger bubble, on Sludge Bed top, the agitation due to biogas forms the mud that a sludge concentration is leaner
Ascend into three phase separator together with water, when biogas encounters the reflecting plate of separator bottom, be folded to the surrounding of reflecting plate, then
Enter storage room through water layer, concentrate on the biogas of storage room, discharged by described reactor outlet, derive with conduit, Gu
Liquid mixed liquor is through being reflected into the settling zone of three phase separator, and the cripple in biogas slurry is flocculated, and granule is gradually increased, and
Settling under action of gravity, the mud being precipitated on skew wall slides back in anaerobic reaction district towards skew wall, and in making reaction zone, accumulation is a large amount of
Mud, make mud dilute by the water supply installation connected, the mud after dilution is by the reaction of the string of described reactor, described
Reactor liquid outlet connects biogas slurry channels discharge to inside spray piping, and fermentation vat carries out spray fermentation, and reactor head is arranged
The biogas gone out enters in sludge gas collecting device under normal circumstances, if biogas is too much, turns on switch valve, by unnecessary biogas row
Enter and biogas burner carries out burn processing.
The solid-state fermentation technology that this utility model uses is strong to adaptability to raw material, processes load big；Equipment investment is less, pipe
Reason is convenient；Process energy consumption is relatively low；Simple and the basic non-wastewater discharge of product postprocessing, utilizes raw material present in traditional zymotic
Rate is the highest, and solid waste discharge amount is big and industry is amplified the problems such as extent feasible is the highest and is progressively overcome, and its advantage and potential more come
The most obvious.
Compared with prior art, this utility model simple in construction, reasonable in design, described methane-generating pit cross section is curved in underground
Arrange, be not only not take up space, and beneficially Winter protection and safe overwintering, the difficulty of construction of underground circle fermentation vat is obvious
Reducing, in fermentation vat, stress is easily uniform, and discharging is convenient；The stirring of described fermentation vat is convenient, it is not necessary to set up above methane-generating pit
Overhead it is stirred, reduces input cost；The UASB reactor being provided with in this utility model carries out ferment in second time to biogas slurry, carries
The high level of resources utilization of fermentation raw material.
Accompanying drawing explanation
Below according to drawings and Examples, structure and features of the present utility model is further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is fermentation zone described in this utility model and the schematic layout pattern of described UASB reactor.
In accompanying drawing 1 and Fig. 2,1. printing opacity canopy, 2. guide rail, 3. feed pipe, 4. liquid level sensor, 5. mechanical arm, 6. track row
Mule carriage, 7. sludge gas collecting device, 8. discharging grab jaw, 9. spray piping, 10. the second circulating pump, 11. first circulating pumps, 12. threeways
Pipe, 13. biogas slurry pipelines, 14. filter mantles, 15. switch valves, 16. spouts, 17. columns, 18. crossbeam platforms, 19. reactor feed liquors
Mouthful, 20. reactor liquid outlets, 21. reactor air vents, 22.UASB reactor, 23. water supply installations, 24. biogas burners,
25. gas storage films, 26. fermentation vats, 27. barriers.
Detailed description of the invention
Referring to Fig. 1 and Fig. 2, a kind of large-sized biogas solid-state fermentation installation, including fermentation zone be located at side, described fermentation zone
UASB reactor 22, described UASB reactor 22 includes that reactor body, described reactor body top are respectively equipped with reaction
Device air vent 21 and reactor liquid outlet 20, bottom is provided with reactor inlet 19, and inside is provided with three phase separator；Described fermentation
District includes the many groups fermentation vat building underground in, and often group fermentation vat includes some fermentation vats 26 being coated with printing opacity canopy 1, described fermentation
Pond 26 is in cylinder, and center is provided with duct type column 17, and described fermentation vat 26 top is stretched out in described column 17 upper end, and lower end is stretched into
Bottom described fermentation vat 26, and described column 17 lower end is arranged with filter mantle 14, if being additionally provided with the Heavenly Stems and Earthly Branches around described fermentation vat 26
Support, between described column 17 and described support by lay some pedals formed crossbeam platform 18, described crossbeam platform 18, adjacent often
It is equipped with guide rail 2, described guide rail 2 headtotail, and described guide rail 2 between group fermentation vat 26 and is provided with track travel car 6, described rail
Road moving trolley 6 is connected by mechanical arm 5 discharging grab jaw 8；It is additionally provided with above described fermentation vat 26 and between described crossbeam platform 18
Gas storage film 25, described gas storage film 25 connect have sludge gas collecting device 7, described sludge gas collecting device 7 also with described reactor aerofluxus
Mouth 21 is connected；Being additionally provided with some feed pipes 3 around described fermentation vat 26, described feed pipe 3 end is provided with general-purpose interface；Described horizontal stroke
Being further fixed on some spray pipings 9 below Liangping platform 18, on described spray piping 9, corresponding described fermentation vat 26 is laid with some
Spout 16；Described column 17 upper end is connected by biogas slurry pipeline 13 the first circulating pump 11, and described first circulating pump 11 is with described
Reactor inlet 19 is connected, and described reactor liquid outlet 20 is connected by biogas slurry pipeline 13 the second circulating pump 10, and described the
Two circulating pumps 10 are connected with described spray piping 9；Described fermentation vat 26 also by pipeline to being externally connected with solar heat collector.
Preferably, internal the setting of described biogas slurry pipeline 13 all has drainage screen.
Described UASB reactor 22 is outside has been also respectively connected with water supply installation 23 and heat insulation and heating equipment.
Described fermentation vat 26 top is additionally provided with the liquid level sensor 4 with warning function.
It is also arranged above barrier 27 at described filter mantle 13 bottom described fermentation vat 26.
Described reactor air vent 21 connects tee T 12, described tee T 12 second end and described sludge gas collecting device
7 connect, and three-terminal link has biogas burner 24.
Described tee T 12 the 3rd end and described biogas burner 24 junction are provided with switch valve 15.
Described large-sized biogas solid-state fermentation device also includes that electric control gear, described electric control gear control described track row respectively
Mule carriage 6, described discharging grab jaw 8, described first circulating pump 11, described second circulating pump 10 and the operation of described liquid level sensor 4,
Wherein said electric control gear controls the mobile lifting folding with described discharging grab jaw 8 of driving of described track travel car 6.
This utility model is through the following steps that realize the generation of biogas:
1) raw material that described large-sized biogas solid-state fermentation installation uses is straw and human and animal excreta, described straw and animal excreta
Just input amount is 20～30:1 to perform according to carbon-nitrogen ratio, and the straw after pulverizing is to direct plunge into fermentation vat, people by input amount
Animal manure will pass through the general-purpose interface of the transhipment tank car described feed pipe end of connection and fills, when mixed raw material is filled into
During required liquid level, described liquid level sensor can be reported to the police, and now stops filling；
2) described fermentation vat connects solar heat collector and outside printing opacity canopy respectively fermentation vat is carried out heating and
Insulation, mixing raw material by fermentation after, the biogas produced in described fermentation vat enters in gas storage film and temporarily stores, and passes through institute
State the collection of sludge gas collecting device and carry utilization；
3), after fermenting raw materials a period of time to be mixed, part is sent out by described fermentation vat by biogas slurry pipeline and the first circulating pump
Liquid mixing raw material after ferment is sent in described UASB reactor and is fermented, and the biogas produced in described UASB reactor is also
It is collected by described sludge gas collecting device, after collection biogas to certain time, by biogas slurry pipeline and the second circulating pump
Connect spray piping, by UASB reactor by fermentation after liquid mixing raw material again spray in described fermentation vat,
Again ferment, gas storage film and sludge gas collecting device persistent collection biogas；
4) fermenting raw materials to be mixed is complete, is taken out by the raw material in fermentation vat by the discharging grab jaw on track travel car,
And it is reentered into new mixing raw material by transhipment tank car.
Preferably, above-mentioned steps 3) described in the biogas that produces in UASB reactor too much time, open switch valve, pass through
Biogas burner burns unnecessary biogas.
This utility model mixes raw material by fermentation after, the biogas produced in described fermentation vat enters in gas storage film and carries out
Temporarily store, and carried utilization by the collection of described sludge gas collecting device, saved the setting of biogas storeroom, subtracted
Lack investment；The interpolation of mixing raw material is 20～30:1 to perform according to carbon-nitrogen ratio by this utility model, farthest protects
Demonstrate,prove fermentation vat at interim lasting equilibrium and the aerogenesis of abundance of fermenting；The solar heat collector that described fermentation vat connects is for pond
Interior heating and insulation；The duct type column being provided with in this utility model, serves not only as the support of crossbeam platform, moreover it is possible to as taking out
Go out the passage of biogas slurry, filter mantle that column lower end is provided with and barrier, when being to prevent from extracting out biogas slurry, there are foreign material to impede, convenient
Extract biogas slurry as early as possible out；This utility model is provided with many group fermentation vats and carries out one time fermentation, by crossbeam platform, adjacent often organizes fermentation vat
Between the track travel car that is provided with and discharging grab jaw, diverse location can be controlled automatically at and facilitate discharging, be directly placed into after discharging and be parked in
In the car of periphery；The printing opacity canopy that described fermentation vat is also arranged above, has and fermentation vat heats the function taken shelter from rain；Described crossbeam is put down
Being provided with of platform, the convenient work carrying out some installing components above fermentation vat and observing ferment effect；Described fermentation vat passes through
Substantially the biogas slurry fermented is sent in described UASB reactor and is carried out ferment in second time, the most again by the first circulating pump and liquid pipeline
Connect spray piping by biogas slurry pipeline, the biogas slurry after ferment in second time is sprayed into again in described fermentation vat, can effectively alleviate resistance
Power, plays stirring action when solid fermentation, improves the resource utilization of fermentation raw material.
The solid-state fermentation technology that this utility model uses is strong to adaptability to raw material, processes load big；Equipment investment is less, pipe
Reason is convenient；Process energy consumption is relatively low；Simple and the basic non-wastewater discharge of product postprocessing, utilizes raw material present in traditional zymotic
Rate is the highest, and solid waste discharge amount is big and industry is amplified the problems such as extent feasible is the highest and is progressively overcome, and its advantage and potential more come
The most obvious.
Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to this utility model
Restriction, retouching, amendment or the equivalent that all those of ordinary skill in the art are made as described above, belong to this reality
With novel protection domain.
Claims (8)
1. a large-sized biogas solid-state fermentation installation, it is characterised in that: include fermentation zone and be located at side, described fermentation zone
UASB reactor, described UASB reactor includes that reactor body, described reactor body top are respectively equipped with reactor aerofluxus
Mouth and reactor liquid outlet, bottom is provided with reactor inlet, and inside is provided with three phase separator；Described fermentation zone includes building ground in
Under many groups fermentation vat, often group fermentation vat include that some tops are coated with the fermentation vat of printing opacity canopy, described fermentation vat is cylinder,
Center is provided with duct type column, and described fermentation vat top is stretched out in described column upper end, and described column lower end stretches into described fermentation vat
Bottom, and described column lower end is arranged with filter mantle, is additionally provided with some supports, described column and described around described fermentation vat
By laying some pedals formation crossbeam platform between support, between described crossbeam platform, adjacent often group fermentation vat, it is equipped with guide rail, described
Guide rail headtotail, and described guide rail is provided with track travel car, described track travel car is connected by mechanical arm has discharging to grab
Shovel；Being additionally provided with gas storage film above described fermentation vat and between described crossbeam platform, described gas storage film connects sludge gas collecting device, institute
State sludge gas collecting device to be also connected with described reactor air vent；Be additionally provided with some feed pipes around described fermentation vat, described in enter
Material pipe end is provided with general-purpose interface；Some spray pipings it are further fixed on below described crossbeam platform, corresponding on described spray piping
Described fermentation vat is laid with some spouts；Described column upper end is connected by biogas slurry pipeline the first circulating pump, and described first
Circulating pump is connected with described reactor inlet, and described reactor liquid outlet is connected by biogas slurry pipeline the second circulating pump, institute
State the second circulating pump to be connected with described spray piping；Described fermentation vat also by pipeline to being externally connected with solar heat collector.
Large-sized biogas solid-state fermentation installation the most according to claim 1, it is characterised in that: set inside described biogas slurry pipeline all
There is drainage screen.
Large-sized biogas solid-state fermentation installation the most according to claim 1, it is characterised in that: described UASB reactor is outside also
It is connected to water supply installation and heat insulation and heating equipment.
Large-sized biogas solid-state fermentation installation the most according to claim 1, it is characterised in that: described fermentation vat top is additionally provided with
There is the liquid level sensor of warning function.
Large-sized biogas solid-state fermentation installation the most according to claim 1, it is characterised in that: described bottom described fermentation vat
Filter mantle is also arranged above barrier.
Large-sized biogas solid-state fermentation installation the most according to claim 1, it is characterised in that: described reactor air vent connects
Having tee T, described tee T the second end to be connected with described sludge gas collecting device, three-terminal link has biogas burner.
Large-sized biogas solid-state fermentation installation the most according to claim 6, it is characterised in that: described tee T the 3rd end and institute
State biogas burner junction and be provided with switch valve.
Large-sized biogas solid-state fermentation installation the most according to claim 4, it is characterised in that: described large-sized biogas solid-state fermentation
Device also includes that electric control gear, described electric control gear control described track travel car, described discharging grab jaw respectively, described first follow
Ring pump, described second circulating pump and the operation of described liquid level sensor, wherein said electric control gear controls described track travel car
Driving is mobile and the lifting folding of described discharging grab jaw.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105907630A (en) * | 2016-04-27 | 2016-08-31 | 南阳师范学院 | Large-sized methane solid fermentation apparatus and usage thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105907630A (en) * | 2016-04-27 | 2016-08-31 | 南阳师范学院 | Large-sized methane solid fermentation apparatus and usage thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20170427 |