CN208545425U - Integral type closed-loop ecological circulation agricultural system - Google Patents
Integral type closed-loop ecological circulation agricultural system Download PDFInfo
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- CN208545425U CN208545425U CN201820901848.5U CN201820901848U CN208545425U CN 208545425 U CN208545425 U CN 208545425U CN 201820901848 U CN201820901848 U CN 201820901848U CN 208545425 U CN208545425 U CN 208545425U
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- anaerobic fermentation
- biogas
- integral type
- agricultural system
- electricity generation
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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 utility model provides a kind of integral type closed-loop ecological circulation agricultural system, comprising: the solid growth facility built on the ground；The anaerobic fermentation subsystem of underground is set；Equipment for separating liquid from solid and biogas electricity generation apparatus, the biogas electricity generation apparatus are connect with the solid growth facility, are used for the solid growth facility power；Waste-heat recovery device, recycles the waste heat that the biogas electricity generation apparatus generates, and the thermal output component of the waste-heat recovery device is connect with the hydrolysis acidification pool and anaerobic fermentation pond respectively.Biogas caused by agricultural system described in the utility model is completely used for generating electricity, electric energy, waste heat, CO2Also completely personal, it is successfully realized the Multi-class propagation of the energy.And underground type anaerobic fermentation subsystem is used, it greatly reduces cost of investment, shorten the construction period, while advantageously reducing scattering and disappearing for heat during project winter operation, reduce the operation energy consumption of system.
Description
Technical field
The utility model belongs to modern agricultural technology, and in particular to the agriculture wastes such as a kind of achievable waste, stalk
The closed-loop ecological circulation agricultural system that object recycling, ecology, innoxious, industrialization are administered.
Background technique
Currently, the total amount that China generates livestock and poultry feces every year reaches nearly 4,000,000,000 tons, livestock and poultry breeding industry emission chemical oxygen demand
Amount reaches 12,680,000 tons, accounts for the 96% of agricultural sources total emission volumn, is the major reason for causing agricultural non-point source pollution.This kind of animal dung
If dirt can be disposed effectively, rationally be utilized, valuable resource just will become, while may be to accelerate farming industry transition to rise
Grade brings opportunity.Other than livestock and poultry feces, the amount that China generates agricultural crop straw every year is about 700,000,000 tons, the utilization of these stalks
Rate only has 30% or so, this disposition for causing a large amount of stalk not got well and can only finally be incinerated, raw to agricultural
Production causes also to bring serious pollution to atmosphere while obstacle.
In this background, how resource utilization is carried out to agricultural wastes such as livestock and poultry feces, stalks, is that this field is closed
One Important Problems of note.In the prior art, when being handled for agricultural wastes such as excrement, stalks, it will usually use and detest
Aerobe fermentation technique, if Chinese patent literature CN101337838A discloses a kind of combined anaerobic fermentation process, to including life
Organic solid castoff including rubbish, excess sludge, excrement, kitchen garbage, stalk etc. is pre-processed, and is obtained granularity and is less than
The organic materials of 5mm obtains the homogeneous that solid holdup is 2-10% using means such as cutting pump, carbon-nitrogen ratio adjusting, moisture regulations
Homogenate fermentation substrate.The fermentation substrate is lauched solution acidification in hydrolysis enzyme effect, subsequently into 35 ± 3 DEG C of medium temperature stirring condition
The lower fermentation for carrying out 15-25 days periods, output biogas energy are supplied or are exported for system capacity, and biogas slurry is then by ageing desalination
After humic acid liquid fertilizer is made, humus granular fertilizer is made in biogas residue.
Liquid fertilizer is made in biogas slurry by above-mentioned anaerobic fermentation method, and granular fertilizer is made in biogas residue, to realize tunning
Utilization.Other than above-mentioned combined anaerobic fermentation process, Chinese patent literature CN102260019A is also disclosed in the prior art
A kind of separate type diphasic anaerobic installation for fermenting comprising hydrolysis acidification reaction unit, anaerobic ferment devices, marsh gas treatment device and
Biogas slurry oxidation unit, the hydrolysis acidification reaction unit include the hydrolysis acidification of at least two hydrolysis acidification basic units in parallel
Reaction tank and hydrolyzate collecting pit.The device is provided with biogas slurry oxidation unit, therein to killing after biogas slurry progress aerating oxidation
Methanogen, then biogas slurry is back to hydrolysis acidification pool, water is used for making up in hydrolysis acidification pool, it is therefore prevented that because in phegma
The problem of causing methane to leak containing methane.
The above-mentioned use in conjunction for passing through hydrolysis acidification, anaerobic ferment process in the prior art, can be to agriculturals such as excrement, stalks
Organic waste is effectively treated, and realizes the resource utilization of waste to a certain extent.But involved in this process
The operation of a large amount of mechanical devices, can expend a large amount of energy and raw material, will increase dramatically when being used in combination with agricultural facility
The cost of operation reduces the economic performance of agricultural system.
Utility model content
What the utility model solved is that agricultural wastes recycling treatment system in the prior art and process requirement expend
The a large amount of energy and raw material, the lower technical problem of economic performance, and then the agriculture wastes such as a kind of achievable waste, stalk are provided
The closed-loop ecological circulation agricultural system that object recycling, ecology, innoxious, industrialization are administered.
The technical scheme in the invention for solving the above technical problem are as follows:
Integral type closed-loop ecological circulation agricultural system, comprising: the solid growth facility built on the ground；It is arranged on ground
Under anaerobic fermentation subsystem, the anaerobic fermentation subsystem further comprises the hydrolysis acidification pool and anaerobic fermentation being arranged in series
Pond；Equipment for separating liquid from solid connect setting with the anaerobic fermentation pond, and the substrate after completion anaerobic fermentation is separated into biogas residue and natural pond
Liquid；Biogas electricity generation apparatus is connected to setting, the biogas electricity generation apparatus and the solid with the methane outlet in the anaerobic fermentation pond
Planting facility connection, is used for the solid growth facility power；Waste-heat recovery device recycles the biogas electricity generation apparatus and generates
Waste heat, the thermal output component of the waste-heat recovery device connect with the hydrolysis acidification pool and anaerobic fermentation pond respectively.
The anaerobic fermentation subsystem further includes the pretreatment pool that the hydrolysis acidification pool upstream is arranged in, the solid-liquid point
Biogas slurry outlet from device is connected to setting with the pretreatment tank.
Desulfurization dewatering device, the gas of the desulfurization dewatering device are provided with and communicated with the methane outlet in the anaerobic fermentation pond
Body outlet is connected to setting with independent flexible gas holder, and the independent flexible gas holder is connected to the biogas electricity generation apparatus, is used for institute
State biogas electricity generation apparatus gas supply.
It is connected with heat refrigeration apparatus with the waste-heat recovery device, for controlling to the solid growth facility
Temperature.
The carbon dioxide air exit of the biogas electricity generation apparatus is connected to setting with the solid growth facility.
Biogas slurry reservoir, the biogas slurry are provided between the biogas slurry outlet of the equipment for separating liquid from solid and the pretreatment tank
Reservoir is arranged in underground.
Lateral paddle mechanical stirring device is provided in the anaerobic fermentation pond.
Integral type closed-loop ecological circulation agricultural system described in the utility model, advantage are:
(1) integral type closed-loop ecological circulation agricultural system described in the utility model, using underground type anaerobic fermentation
System (UHCAF) greatly reduces cost of investment, shortens the construction period, while during advantageously reducing project winter operation
Scattering and disappearing for heat, reduces system operation energy consumption；The utility model separates Hydrolysis Acidification and gas generation process, and acid is prevented to detest
Accumulation causes fermentation raw material to be acidified in aerobe fermentation pond, guarantees factor of created gase and annual stable operation.
(2) integral type closed-loop ecological circulation agricultural system described in the utility model, using cross in anaerobic fermentation pond
Guarantee fermentation raw material mobility to paddle agitating mode, avoids the hair of the sinking of mixed material and encrustation phenomena in fermentation process
It is raw.
(3) integral type closed-loop ecological circulation agricultural system described in the utility model, generated biogas are completely used for
Power generation, electric energy, waste heat, CO2Also completely personal, it is successfully realized the Multi-class propagation of the energy.
In order to keep the technical solution of integral type closed-loop ecological circulation agricultural system described in the utility model clearer
Understand, the technical solution in the utility model is further described with attached drawing With reference to embodiment.
Detailed description of the invention
It is as shown in Figure 1 the flow diagram of integral type closed-loop ecological circulation agricultural system described in the utility model；
It is illustrated in figure 2 the schematic top plan view of anaerobic fermentation subsystem described in the utility model；
Wherein, appended drawing reference are as follows:
1- fowl and animal excrement；2- pretreatment pool；3- hydrolysis acidification pool；4- anaerobic fermentation pond；The anaerobic fermentation zone 41-；42- pipeline
The corridor and；5- biogas；6- desulfurization dewatering device；7- biogas electricity generation apparatus；8- solid growth facility；9- stalk, waste dish；10- slag
Liquid；11- equipment for separating liquid from solid；12- biogas slurry；13- biogas residue.
Specific embodiment
Hereinafter, certain exemplary embodiments are simply just described.As one skilled in the art will recognize that
Like that, without departing from the spirit or scope of the present utility model, it can be modified by various different modes described real
Apply example.Therefore, attached drawing and description are considered essentially illustrative rather than restrictive.
Present embodiments provide for a kind of integral type closed-loop ecological circulation agricultural systems, as shown in Figure 1, the integral type
Closed-loop ecological circulation agricultural system includes the solid growth facility 8 built on the ground, solid kind described in present embodiment
Implanting, which applies 8, can be selected three-dimensional agriculture facility arbitrary in the prior art, such as greenhouse of building on the ground, be provided in greenhouse
Stereoscopic frame is used for the solid growth of crops.
Agricultural system in present embodiment further includes the anaerobic fermentation subsystem that underground is arranged in, as shown in Fig. 2, described
Anaerobic fermentation subsystem further comprises the hydrolysis acidification pool 3 being arranged in series and anaerobic fermentation pond 4, the anaerobic fermentation pond 4
Anaerobic fermentation zone 41 and pipeline and corridor 42 are arranged at underground；There are two anaerobic fermentation zones for the setting of anaerobic fermentation pond 4
41, each anaerobic fermentation zone 41 configures a set of lateral paddle mechanical stirring device, the transverse direction paddle mechanical stirring device
One end is connecting pin, and wall surface of the connecting pin through the anaerobic fermentation zone 41 extends to corridor, is connect with the connecting pin
It is provided with motor, motor is placed on corridor, is convenient for inspection and maintenance；The other end of the transverse direction paddle mechanical stirring device is
Fixing end is provided with rotation axis in the fixing end, and the rotation axis rotation is fixed on the one side wall of the anaerobic fermentation zone 41
On face, lodicule is provided between the fixing end and connecting pin, the motor can drive the lodicule to carry out rotation to real
It now stirs, the generation of encrustation phenomena is avoided while guaranteeing material fluidity.
Be connected with equipment for separating liquid from solid 11 with the anaerobic fermentation pond 4, the equipment for separating liquid from solid 11 be suitable for by
Substrate after completing anaerobic fermentation is separated into biogas residue 13 and biogas slurry 12.
Biogas electricity generation apparatus 7, the biogas electricity generation apparatus 7 are provided with and communicated with the methane outlet in the anaerobic fermentation pond 4
It is connect with the solid growth facility 8, for powering to the solid growth facility 8；It is and described as preferred embodiment
The methane outlet in anaerobic fermentation pond 4 is provided with and communicated with desulfurization dewatering device 6, and the desulfurization dewatering device 6 includes being arranged in series
First dehydrator, devulcanizer and demister, first dehydrator preferably uses moisture trap, for removing the water in biogas
Point；It is provided with ferric oxide desulfurizer in the devulcanizer, for removing the hydrogen sulfide gas in biogas 5, the demister is used for
The steam that removing devulcanizer generates in sweetening process.
The gas vent of the desulfurization dewatering device 6 is connected to setting with independent flexible gas holder, the independent flexible gas holder with
The biogas electricity generation apparatus 7 is connected to, for supplying to the biogas electricity generation apparatus 7.Marsh gas power generation described in present embodiment
The carbon dioxide air exit of device 7 is connected to setting with the solid growth facility 8.
Agricultural system in present embodiment is additionally provided with waste-heat recovery device, the recycling dress of waste heat described in the present embodiment
It sets including heat source pipe network, the heat source pipe network includes two pipe network branches, one of them described pipe network branch is connected with heat
Water type recuperation of heat unit, for recycling the waste heat and heat hot water that the biogas electricity generation apparatus 7 generates, the recuperation of heat unit will
Hot water after heating is connect by thermal output component with the hydrolysis acidification pool 3 and anaerobic fermentation pond 4, can be used for the hydrolysis
Acidification pool 3 and anaerobic fermentation pond 4 are kept the temperature, and the thermal output component is heating pipe.
Another pipe network branch of the waste-heat recovery device connect setting with absorption type refrigerating unit, using recycling
Waste heat freezes, for carrying out temperature control to the solid growth facility 8.Two pipe network branches of the waste-heat recovery device are only
It erects and sets, can respectively realize independent opening and closing.
As preferred embodiment, the anaerobic fermentation subsystem in present embodiment further includes being arranged in the water
The pretreatment pool 2 of 3 upstream of acidification pool is solved, the biogas slurry of the equipment for separating liquid from solid 11, which is exported, is connected to setting with the pretreatment tank 2,
For the reflux of biogas slurry 12, biogas slurry is provided between the biogas slurry outlet of the equipment for separating liquid from solid 11 and the pretreatment tank 2
Reservoir, for buffering to the biogas slurry 12 of reflux, the biogas slurry reservoir is arranged in underground.
The operation process of integral type closed-loop ecological circulation agricultural system described in present embodiment, including walk as follows
It is rapid:
(1) feces of livestock and poultry 1 is entered into pretreatment pool 2 after metering, carries out desilting impurity elimination processing, institute with adjusting after water mixes
Stating TS (total solid, total solids content) content that the feces of livestock and poultry 1 in pretreatment pool 2 is added after adjusting water is
5wt%, after feces of livestock and poultry 1 is mixed with water, pH value is usually to fluctuate in alkalescent between faintly acid, and acid is hydrolyzed herein
It can be adjusted without pH before change, but as preferred embodiment, the present embodiment adjusts the pH value of the liquid in pretreatment pool 2
To 6.5-7.5；
By the feces of livestock and poultry 1 after desilting impurity elimination and it is crushed to the stalk of 3-5cm long, waste dish 9 feeding hydrolysis acid jointly
Change pond 3, mixed material is 2 days in the residence time of hydrolysis acidification pool 3；The TS content of mixed material for completing acidization is
Mixed material is pumped to anaerobic fermentation pond 4 and enters the production gas stage by 12wt%-15wt%, and mixed material is in anaerobic fermentation pond 4
Residence time 30 days, as preferred embodiment, the pH value of the liquid in the anaerobic fermentation pond 4 is controlled in 7-7.5.
(2) the substrate slag liquid 10 after completion anaerobic fermentation is sent into equipment for separating liquid from solid 11, in the equipment for separating liquid from solid
It is separated into biogas residue 13 and biogas slurry 12 in 11, a part in the biogas residue 13 is sent into the solid growth facility 8 and is used as plant
The organic fertilizer of object production；A part of biogas slurry 12 is then back to the pretreatment tank 2 with making adjustments water after biogas slurry reservoir buffering；
The TS content of biogas residue 13 described in present embodiment is 35wt%, and the TS content of biogas slurry 12 is 2.5wt%.
Biogas 5 caused by anaerobic fermentation caches after desulfurization dewatering in independent flexible gas holder to be made for biogas electricity generation apparatus 7
With for whole biogas for generating electricity, generated electric energy supplies the productive power of the solid growth facility 8；Institute in present embodiment
The biogas electricity generation apparatus 7 stated is provided with gas electricity generator, is generated electricity using biogas combustion.
The waste-heat recovery device recycles the waste heat of the biogas electricity generation apparatus 7, using the waste heat to the hydrolysis acid
Change pond 3 and anaerobic fermentation pond 4 is kept the temperature, while the waste-heat recovery device is connect with the heat refrigeration apparatus, works as summer
The heat demand of anaerobic fermentation subsystem can carry out thermostatic control to three-dimensional planting facility 8 by utilizing waste heat for refrigeration mode when reducing；Make
To be preferred, the hot-cool demand and UTILIZATION OF VESIDUAL HEAT IN mode of the anaerobic fermentation subsystem and the solid growth facility 8 can be by intelligence
Control system real-time control, the generated CO of biogas combustion power generation2It can be passed through solid growth facility 8, be used as carbon fertilizer.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (7)
1. integral type closed-loop ecological circulation agricultural system characterized by comprising
The solid growth facility built on the ground；
The anaerobic fermentation subsystem of underground is set, and the anaerobic fermentation subsystem further comprises the hydrolysis acidification being arranged in series
Pond and anaerobic fermentation pond；
Equipment for separating liquid from solid connect setting with the anaerobic fermentation pond, by complete anaerobic fermentation after substrate be separated into biogas residue with
Biogas slurry；
Biogas electricity generation apparatus, setting is connected to the methane outlet in the anaerobic fermentation pond, and the biogas electricity generation apparatus is stood with described
The connection of body planting facility, is used for the solid growth facility power；
Waste-heat recovery device recycles the waste heat that the biogas electricity generation apparatus generates, the thermal output component of the waste-heat recovery device
It is connect respectively with the hydrolysis acidification pool and anaerobic fermentation pond.
2. integral type closed-loop ecological circulation agricultural system according to claim 1, which is characterized in that the anaerobic fermentation
Subsystem further includes the pretreatment pool that the hydrolysis acidification pool upstream is arranged in, the biogas slurry outlet of the equipment for separating liquid from solid and institute
State pretreatment pool connection setting.
3. integral type closed-loop ecological circulation agricultural system according to claim 2, which is characterized in that sent out with the anaerobism
The methane outlet in ferment pond is provided with and communicated with desulfurization dewatering device, the gas vent and independent flexible gas holder of the desulfurization dewatering device
Connection setting, the independent flexible gas holder are connected to the biogas electricity generation apparatus, for supplying to the biogas electricity generation apparatus.
4. integral type closed-loop ecological circulation agricultural system according to claim 3, which is characterized in that returned with the waste heat
Receiving apparatus is connected with heat refrigeration apparatus, for carrying out temperature control to the solid growth facility.
5. integral type closed-loop ecological circulation agricultural system according to claim 4, which is characterized in that the marsh gas power generation
The carbon dioxide air exit of device is connected to setting with the solid growth facility.
6. integral type closed-loop ecological circulation agricultural system according to claim 5, which is characterized in that in the solid-liquid point
Biogas slurry from device exports and is provided with biogas slurry reservoir between the pretreatment tank, and the biogas slurry reservoir is arranged in underground.
7. integral type closed-loop ecological circulation agricultural system according to claim 6, which is characterized in that sent out in the anaerobism
Lateral paddle mechanical stirring device is provided in ferment pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820901848.5U CN208545425U (en) | 2018-06-12 | 2018-06-12 | Integral type closed-loop ecological circulation agricultural system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820901848.5U CN208545425U (en) | 2018-06-12 | 2018-06-12 | Integral type closed-loop ecological circulation agricultural system |
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| CN208545425U true CN208545425U (en) | 2019-02-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950504A (en) * | 2019-12-27 | 2020-04-03 | 李占川 | Farm excrement treatment system and corresponding treatment method |
-
2018
- 2018-06-12 CN CN201820901848.5U patent/CN208545425U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950504A (en) * | 2019-12-27 | 2020-04-03 | 李占川 | Farm excrement treatment system and corresponding treatment method |
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| CF01 | Termination of patent right due to non-payment of annual fee |