CN208995486U - The system of anaerobic digestion of kitchen wastes co-producing hydrogen methane - Google Patents
The system of anaerobic digestion of kitchen wastes co-producing hydrogen methane Download PDFInfo
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- CN208995486U CN208995486U CN201821626111.3U CN201821626111U CN208995486U CN 208995486 U CN208995486 U CN 208995486U CN 201821626111 U CN201821626111 U CN 201821626111U CN 208995486 U CN208995486 U CN 208995486U
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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 system of anaerobic digestion of kitchen wastes co-producing hydrogen methane, kitchen garbage receives feed bin and is successively connected to garbage sorting system, crushing device, pyrohydrolysis reactor tank, pretreatment tank, hydrogen production through anaerobic fermentation reactor and level-one anaerobic digestor, the anaerobic sludge input port of hydrogen production through anaerobic fermentation reactor is connected to anaerobic sludge supply warehouse, hydrogen outlet is connected to hydrogen purification system, and mixture outlet is connected to solid-liquid separation tank and tank for sewage gas respectively after being connected to level-one anaerobic digestor；Solid-liquid separation tank is connected to biogas residue tank and level-one biogas slurry tank respectively, biogas residue tank is connected to desiccation apparatus, level-one biogas slurry tank is connected to second level biogas slurry tank and tank for sewage gas respectively after being connected to secondary anaerobic digester, second level biogas slurry tank is connected to dehydration equipment, the solid outlet of dehydration equipment is connected to desiccation apparatus, and liquid outlet is connected to after being connected to digestion liquid treating system with desiccation apparatus and reservoir；Tank for sewage gas outlet connect with methane purification system after respectively with aerator and CO2Air accumulator connection.
Description
Technical field
The utility model relates to field of energy source environment protection, and in particular to a kind of anaerobic digestion of kitchen wastes co-producing hydrogen methane
System.
Background technique
It in recent years, is in sharp increase trend as the improvement of people's living standards, kitchen garbage yield is continuously improved,
China some areas kitchen garbage is in unordered controlled state at present, usually simple to stack, and breeds mosquitos and flies, stench is generated, to ring
Border pollution and human health generate greater risk.It carries out handling to not only result in kitchen garbage seeking using traditional landfill method
The loss of value is supported, and is easy to produce the secondary pollutions such as foul gas, percolate；Incineration method handles kitchen garbage due to kitchen
Msw water content is higher, and calorific value is lower, and generates a large amount of pernicious gases, seriously affects periphery ecological environment and human living ring
Border quality, meanwhile, environment caused by the increasingly depleted and fossil fuel energy burning with global non-renewable energy resources is big
Gas pollution problem has seriously threatened the sustainable development and living environment of the mankind.Hydrogen is the highest gas of unit mass calorific value,
Its combustion product only has water, and no greenhouse gases generate, therefore hydrogen is optimal energy substance.Currently, the preparation method of hydrogen
Mainly chemical method, electrolysis method, Water gas shift/WGS method and steam reforming method, principle are water or hydrocarbon existing for the combined form
Hydrogen making in substance.These hydrogen preparing methods have the deficiency of high energy consumption, equipment requirement height and low yield etc., and portion
The raw material itself for preparing for dividing hydrogen is the fuel that can directly utilize, therefore develops low energy consumption preparation method and utilize renewable original
Material is the hydrogen manufacturing developing direction of most prospect, meanwhile, methane is also the renewable energy of most possible substitution natural gas, by people
Concern.The nutrient composition contents such as rubbish from cooking grease, albumen are high, can pass through biofermentation co-producing hydrogen and methane process
Realize its innoxious, recycling, minimizing, but rubbish from cooking moisture content and salt content are high, easily putrid and deteriorated, existing processing is set
High, starting of applying that there are pre-processing requirements slowly, fluctuation of service, the problems such as factor of created gase is low, energy consumption is high, cannot achieve hydrogen-first
The purpose that alkane coproduction and mixture utilize.
Summary of the invention
The technology of the utility model solves the problems, such as: overcome the deficiencies in the prior art, proposes that a kind of kitchen garbage anaerobism disappears
Change the system of co-producing hydrogen methane.
The technical solution of the utility model is: a kind of system of anaerobic digestion of kitchen wastes co-producing hydrogen methane, packet
Include: kitchen garbage receives feed bin, anaerobic sludge supply warehouse, garbage sorting system, inorganic matter recovery bin, crushing device, pyrohydrolysis
Reactor tank pre-processes tank, microbial inoculum injection device, ammonium hydrogen carbonate injection device, hydrogen production through anaerobic fermentation reactor, hydrogen purification system
System, hydrogen air accumulator, level-one anaerobic digestor, solid-liquid separation tank, tank for sewage gas, biogas residue tank, level-one biogas slurry tank, second level biogas slurry tank,
Secondary anaerobic digester, dehydration equipment, desiccation apparatus, digestion liquid treating system, reservoir, methane purification system, dispenser add
Air column and CO2 air accumulator.
Kitchen garbage receive feed bin outlet by conveying device successively with garbage sorting system, crushing device, pyrohydrolysis
Reactor tank, pretreatment tank, hydrogen production through anaerobic fermentation reactor are connected to level-one anaerobic digestor, and garbage sorting system is provided with inorganic
Object outlet, inorganic matter outlet are connected to by conveying device with inorganic matter recovery bin, and pretreatment tank is provided with microbial inoculum inlet
With ammonium hydrogen carbonate inlet, microbial inoculum injection device and ammonium hydrogen carbonate injection device are injected with microbial inoculum inlet and ammonium hydrogen carbonate respectively
Mouth connection；Hydrogen production through anaerobic fermentation reactor is provided with hydrogen outlet, and mixture outlet and anaerobic sludge input port, anaerobic sludge are defeated
Entrance is connected to by conveying device with anaerobic sludge supply warehouse, hydrogen outlet pass through conveying device successively with hydrogen purification system and
The connection of hydrogen air accumulator, mixture outlet are connected to by conveying device with level-one anaerobic digestor, and level-one anaerobic digestor goes out
Mouth is connected to by conveying device with solid-liquid separation tank and tank for sewage gas respectively.
The outlet of solid-liquid separation tank passes through conveying device respectively and is connected to biogas residue tank and level-one biogas slurry tank, the outlet of biogas residue tank
It being connected to by conveying device with desiccation apparatus, the outlet of level-one biogas slurry tank is connected to by conveying device with secondary anaerobic digester,
The outlet of secondary anaerobic digester passes through conveying device respectively and is connected to second level biogas slurry tank and tank for sewage gas, the outlet of second level biogas slurry tank
It is connected to by conveying device with dehydration equipment, dehydration equipment is equipped with solid outlet and liquid outlet, and solid outlet passes through conveying dress
It sets and is connected to desiccation apparatus, liquid outlet is connected to by conveying device with digestion liquid treating system, and going out for liquid treating system is digested
Mouth is connected to by conveying device with desiccation apparatus and reservoir.
Tank for sewage gas outlet is connect by conveying device with methane purification system, and methane purification system is distinguished by conveying device
With dispenser and/or aerating column, CO2Air accumulator connection.
Further, digestion liquid treating system includes: conditioning tank, sub- digestion reactor, anaerobic ammonia oxidation reactor, precipitating
Pond, filter device, dehydration device；Dehydration equipment is connect by conveying device with conditioning tank, and conditioning tank, is detested sub- digestion reactor
Anaerobic ammonium oxidation reactor, sedimentation basin are sequentially connected by conveying device, and sedimentation basin is provided with liquid outlet, sludge outlet and sludge
Loop exit, liquid outlet are successively connect with filter device and reservoir by conveying device, and sludge outlet passes through conveying device
It is connect with dehydration device, sludge circulation outlet is connect with sub- digestion reactor, and dehydration device is provided with dehydration device liquid outlet
It is connect with the dehydration device liquid outlet of dehydration device solid outlet, dehydration device with filter device, the dehydration dress of dehydration device
Solid outlet is set to connect with desiccation apparatus.
Further, methane purification system includes: sequentially connected roots blower, grade one filter, surge tank, pressurization
Pump, water scrubber, moisture trap, desulfurizer, fire arrester, decarbonization device, dehydrohalogenation device, denitrogenation oxygen device, level-one pressure
Contracting machine, freezing type drier, secondary filter, split-compressor, carbon dioxide heat-pump, tertiary filter, primary heater, four
Grade filter, level-one film group, secondary heater, Pyatyi filter, secondary membrane group, natural gas storage tank, CNG compressor, gas storage dress
It sets；The entrance of roots blower is connected by the outlet of conveying device and tank for sewage gas；Caisson passes through conveying device and dispenser
And/or aerating column connection；Carbon dioxide heat-pump includes recycling sequentially connected carbon-dioxide gas compressor, condenser, expansion valve and
Regenerator.
Further, desiccation apparatus is solar energy desiccation field.
Further, level-one anaerobic digestor is identical with the structure of secondary anaerobic digester.
Further, level-one anaerobic digestor includes shell, driving device, goes up and down stirring rod, stirring parts, material inlet,
Biogas outlet, biogas slurry outlet, bracket；Housing bottom is fixed on bracket, and driving device is fixed on case top, and lifting is stirred
Mixing bar is hydraulic cylinder comprising cylinder body and piston rod, cylinder body one end are connect with driving device, and the other end, which is passed through, is located at shell with shell
In vivo, stirring parts are fixedly connected with piston rod.
Further, the cylinder body for going up and down stirring rod is connected to by detachable pipeline with the oil pump that hull outside is arranged in.
Further, material inlet and biogas slurry outlet are arranged at the lower part of housing sidewall, and the setting of biogas outlet exists
The top of housing sidewall.
Further, it the system comprises cinder notch is let out, unloads cinder notch and is arranged in housing bottom.
Further, stirring parts include 2 groups of stirring sheets, and every group of stirring sheet is in same level, relative to lifting stirring rod
Axisymmetrical setting, 2 groups of stirring sheets set gradually along the axis of lifting stirring rods.
The utility model compared with prior art the advantages of be:
1, the system resource degree of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model is high, is solving ring
Hydrogen-methane coproduction is realized while guarantor's problem, is improved resource utilization, and ecological circulation is realized.
2, in the system of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model, methane purification system is by setting
The devices such as desulfurizer, moisture trap, biogas compressor, cooling driers, level-one film group, secondary membrane group, the biogas compressor set
Cooperation successively biogas is handled, ensure that processing after final output gas in high-order calorific capacity, total sulfur, H2S, CO2,
The indexs such as O2, water dew point reach the standard of vehicle fuel.It realizes with lower investment and operating cost, better simply control pair
Biogas carries out purification processing, and making that treated, output gas meets vehicle fuel standard requirements.
3, in the system of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model, anaerobic methane production digester is set
It is equipped with lifting stirring rod, when the accumulation of the biogas residue of tank bottom is more to be difficult to stir, thus it is possible to vary the mixing position of stirring parts is relatively connecing
The top of nearly bottom biogas residue is stirred material, under the action of the eddy flow of biogas slurry, the biogas residue of tank bottom aggregation can gradually by
Biogas slurry drives, and improves the degree of anaerobic digestion reaction；2 groups of stirring sheets are set, while improving stirring capacity, increase stirring
Volume, further improve the speed of anaerobic reaction, this outer bottom setting unloads cinder notch, regular deslagging avoids residue from occupying
More fermentor spaces.
4, in the system of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model, level-one anaerobic digestion is utilized
It is stabilized by the metabolic activity of microorganism under anaerobic to make waste for tank, while generating the substances such as methane, then by natural pond
Liquid passes through secondary anaerobic digestion, and resource is made to be fully used.
Detailed description of the invention
Fig. 1 is the schematic diagram of the system of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model.
In system of the Fig. 2 for the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model, methane purification system
Schematic diagram.
Fig. 3 is in the system of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model, in methane purification system
The schematic diagram of carbon dioxide heat-pump.
Fig. 4 is the knot of anaerobic digestor in the system of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model
Structure schematic diagram.
Specific embodiment
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more of the features.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Figs 1-4, a kind of system of anaerobic digestion of kitchen wastes co-producing hydrogen methane, comprising: kitchen garbage receives
Feed bin, anaerobic sludge supply warehouse, garbage sorting system, inorganic matter recovery bin, crushing device, pyrohydrolysis reactor tank pre-process tank,
Microbial inoculum injection device, ammonium hydrogen carbonate injection device, hydrogen production through anaerobic fermentation reactor, hydrogen purification system, hydrogen air accumulator, level-one
Anaerobic digestor, solid-liquid separation tank, tank for sewage gas, biogas residue tank, level-one biogas slurry tank, second level biogas slurry tank, secondary anaerobic digester, dehydration
Equipment, desiccation apparatus digest liquid treating system, reservoir, methane purification system, dispenser, aerating column and CO2 air accumulator.
Kitchen garbage receive feed bin outlet by conveying device successively with garbage sorting system, crushing device, pyrohydrolysis
Reactor tank, pretreatment tank, hydrogen production through anaerobic fermentation reactor are connected to level-one anaerobic digestor, and garbage sorting system is provided with inorganic
Object outlet, inorganic matter outlet are connected to by conveying device with inorganic matter recovery bin, and pretreatment tank is provided with microbial inoculum inlet
With ammonium hydrogen carbonate inlet, microbial inoculum injection device and ammonium hydrogen carbonate injection device are injected with microbial inoculum inlet and ammonium hydrogen carbonate respectively
Mouth connection；Hydrogen production through anaerobic fermentation reactor is provided with hydrogen outlet, and mixture outlet and anaerobic sludge input port, anaerobic sludge are defeated
Entrance is connected to by conveying device with anaerobic sludge supply warehouse, hydrogen outlet pass through conveying device successively with hydrogen purification system and
The connection of hydrogen air accumulator, mixture outlet are connected to by conveying device with level-one anaerobic digestor, and level-one anaerobic digestor goes out
Mouth is connected to by conveying device with solid-liquid separation tank and tank for sewage gas respectively.
The outlet of solid-liquid separation tank passes through conveying device respectively and is connected to biogas residue tank and level-one biogas slurry tank, the outlet of biogas residue tank
It being connected to by conveying device with desiccation apparatus, the outlet of level-one biogas slurry tank is connected to by conveying device with secondary anaerobic digester,
The outlet of secondary anaerobic digester passes through conveying device respectively and is connected to second level biogas slurry tank and tank for sewage gas, the outlet of second level biogas slurry tank
It is connected to by conveying device with dehydration equipment, dehydration equipment is equipped with solid outlet and liquid outlet, and solid outlet passes through conveying dress
It sets and is connected to desiccation apparatus, liquid outlet is connected to by conveying device with digestion liquid treating system, and going out for liquid treating system is digested
Mouth is connected to by conveying device with desiccation apparatus and reservoir.
Tank for sewage gas outlet is connect by conveying device with methane purification system, and methane purification system is distinguished by conveying device
With dispenser and/or aerating column, the connection of CO2 air accumulator.
Preferably, digestion liquid treating system includes: conditioning tank, sub- digestion reactor, anaerobic ammonia oxidation reactor, precipitating
Pond, filter device, dehydration device；Dehydration equipment is connect by conveying device with conditioning tank, and conditioning tank, is detested sub- digestion reactor
Anaerobic ammonium oxidation reactor, sedimentation basin are sequentially connected by conveying device, and sedimentation basin is provided with liquid outlet, sludge outlet and sludge
Loop exit, liquid outlet are successively connect with filter device and reservoir by conveying device, and sludge outlet passes through conveying device
It is connect with dehydration device, sludge circulation outlet is connect with sub- digestion reactor, and dehydration device is provided with dehydration device liquid outlet
It is connect with the dehydration device liquid outlet of dehydration device solid outlet, dehydration device with filter device, the dehydration dress of dehydration device
Solid outlet is set to connect with desiccation apparatus.
Preferably, desiccation apparatus is solar energy desiccation field.
Preferably, the methane purification system includes heat exchanger, the carbon dioxide working medium and one of the carbon dioxide heat-pump
The cooling backwater of grade heater and secondary heater is exchanged heat by the heat exchanger.
Preferably, the grade one filter be particulate filter, the secondary filter be coalescing filter, described three
Grade filter is water absorbing filter, and the level Four filter and Pyatyi filter are oil water separation filtering.
Preferably, the methane purification system includes CO2 air accumulator, and the level-one film group and secondary membrane group are CH4/CO2
Seperation film, the CH of the level-one film group4Infiltration outlet and CO2Infiltration outlet respectively with the entrance of secondary heater and CO2 air accumulator
Entrance connection, the CH4 infiltration outlet and CO2 infiltration outlet of the secondary membrane group are stored up with the entrance of natural gas storage tank and CO2 respectively
The connection of gas tank entrance.
Preferably, the stage compressor and split-compressor are biogas compressor.
Preferably, it is provided with odorization machine on the pipeline between the CHG compressor and caisson, to meet civilian mark
Standard, it is more preferably safe.
Preferably, the dehydration equipment is sludge dewatering computer room, screw extruder or centrifugal dehydrator.
Preferably, level-one anaerobic digestor is identical with the structure of secondary anaerobic digester, includes shell 10, driving device
20, stirring rod 30 is gone up and down, stirring parts 40, material inlet 50, biogas outlet 60, biogas slurry outlet 70 lets out cinder notch 80, bracket
90；10 bottom of shell is fixed on the bracket 90, and the driving device 20 is fixed on 10 top of shell, the liter
Drop stirring rod 30 is hydraulic cylinder comprising cylinder body 31 and piston rod 32, described 31 one end of cylinder body are connect with the driving device 20,
The other end is passed through to be located in the shell 10 with the shell 10, and the cylinder body 31 of the lifting stirring rod 30 passes through detachable pipeline
It is connected to the oil pump being arranged in outside shell 10；The stirring parts 40 are fixedly connected with the piston rod 32, the material inlet
50 and biogas slurry outlet 70 be arranged at the lower part of 10 side wall of shell, the biogas outlet 60 is arranged in the shell 10
The top of side wall, the cinder notch 80 that unloads are arranged in 10 bottom of shell.
Preferably, the driving device 20 is servo motor.
The preferred stirring parts 40 include 2 groups of stirring sheets, and every group of stirring sheet is in same level, relative to the lifting
The axisymmetrical of stirring rod 30 is arranged, and 2 groups of stirring sheets are set gradually along the axis of the lifting stirring rod 30, passes through 2 groups of stirrings
Piece improves stirring capacity.
The course of work of the system of the anaerobic digestion of kitchen wastes co-producing hydrogen methane of the utility model is as follows:
A), kitchen garbage receives feed bin and the kitchen garbage in storehouse is delivered to garbage sorting system by conveying device, point
It selects inorganic matter to recycle by the inorganic matter outlet of the garbage sorting system by Pipeline transport to inorganic matter recovery bin, lead to
Setting garbage sorting system is crossed, nondegradable inorganic matter is isolated, to guarantee the stability of subsequent anaerobic fermentation.Preferably,
The garbage sorting system is automatic fraction collector, and the automatic fraction collector is the prior art, it can be achieved that organic matter and inorganic matter
Sorting；Preferably, the inorganic matter is plastics, metal, sandstone etc.；Enter after the kitchen garbage of garbage sorting system sorting
Crushing device is broken, and broken kitchen garbage is entered after pyrohydrolysis reactor carries out pyrohydrolysis by conveying device and enters pre- place
Tank is managed, microbial inoculum injection device injects microbial inoculum into pretreatment tank, and ammonium hydrogen carbonate injection device injects bicarbonate into pretreatment tank
Ammonium, it is preferred that the injection rate of microbial inoculum is the 4%-6% for pre-processing rubbish in tank, and the injection rate of ammonium hydrogen carbonate is in pretreatment tank
The 1%-2% of rubbish is pre-processed 3-5 days, and by pre-processing the pretreatment of tank, actinomyces albus is grown up simultaneously, broken rubbish
Rubbish softens, and improves subsequent gas production.Pretreated mixture enters hydrogen production through anaerobic fermentation reactor by conveying device,
Meanwhile anaerobic sludge supply warehouse supplies anaerobic sludge into hydrogen production through anaerobic fermentation reactor by conveying device, the anaerobism is dirty
There are hydrogen-producing acetogens in mud, it is preferred that the supply amount of anaerobic sludge is into after the pretreatment of hydrogen production through anaerobic fermentation reactor
Mixture 20%-30%, in hydrogen production through anaerobic fermentation reactor, react generation hydrogen be discharged by hydrogen outlet after by defeated
It send device to enter hydrogen air accumulator after hydrogen purification system purifies to store, remaining mixture enters level-one by conveying device
Anaerobic digestor carries out level-one anaerobic digestion, and the biogas that level-one anaerobic digestion generates enters tank for sewage gas by conveying device, remaining
Mixture enters solid-liquid separation tank, and the biogas residue of solid-liquid separation tank separation enters biogas residue tank by conveying device, and biogas slurry passes through conveying
Device enters level-one biogas slurry tank, and the biogas residue in biogas residue tank enters desiccation apparatus desiccation by conveying device, in level-one biogas slurry tank
Biogas slurry enters secondary anaerobic digester by conveying device and generates biogas and biogas slurry after anaerobic digestion, and biogas passes through conveying dress
Set and enter tank for sewage gas, biogas slurry enters second level biogas slurry tank by conveying device, the biogas slurry in second level biogas slurry tank pass through conveying device into
Enter dehydration equipment carry out dehydration form filtrate and filter residue, filter residue enters the desiccation of solar energy desiccation field by conveying device and forms biology
Charcoal soil.
B), filtrate enters conditioning tank storage by conveying device, and the filtrate of conditioning tank storage enters Asia by conveying device
Digestion reactor enter after denitrogenation anaerobic ammonia oxidation reactor and carries out secondary denitrogenation, the filtrate after denitrogenation enter sedimentation basin into
Row sludge settling, forms sludge and clear liquid, the sludge of partly precipitated enter dehydration device and is dehydrated, partly precipitated sludge circulation
Denitrogenation is repeated to sub- digestion reactor, dewatered sludge forms biological carbon soil after the drying and other treatment of solar energy desiccation field, clearly
Liquid enters reservoir formation recycled water after passing through membrane filtration.
C), after the biogas in tank for sewage gas is extracted out by roots blower, buffering is entered after particulate filter filters particulate matter
Tank buffering, biogas are exported from surge tank by successively passing through water scrubber, moisture trap, desulfurizer, resistance after force (forcing) pump pressurization
Firearm, decarbonization device, dehydrohalogenation device, denitrogenation oxygen device realize the removal of the impurity such as carbide, sulfide, hydrogen halides；It goes
Except the gas of related impurities passes sequentially through stage compressor, freezing type drier, secondary filter, split-compressor, titanium dioxide
Carbon heat pump, tertiary filter, primary heater, level Four filter, level-one film group, secondary heater, Pyatyi filter, secondary membrane
Group enters natural gas storage tank after realizing dehydration and carbon dioxide removal, and the natural gas of natural gas storage tank outlet is high by CNG compressor
Pressure, which is compressed and injected after foul smell by odorization machine, enters caisson for the aerating of natural gas commerial vehicle and/or for CNG tank car
Gas injection.
In the process, the carbon dioxide that level-one film group and secondary membrane group are precipitated, which enters in carbon dioxide air accumulator, to be stored.
Wherein, the workflow of carbon dioxide heat-pump is as follows: through the compressed high temperature and pressure dioxy of carbon-dioxide gas compressor
Change after carbon enters condenser heat exchange and forms cryogenic high pressure carbon dioxide；The cryogenic high pressure carbon dioxide passes through the expansion valve shape
At low-temp low-pressure carbon dioxide, the low-temp low-pressure carbon dioxide enters regenerator heat exchange, forms high-temperature low-pressure carbon dioxide, institute
It states high-temperature low-pressure carbon dioxide and enters carbon-dioxide gas compressor, form high temperature and pressure carbon dioxide, the gas of split-compressor outlet
Body realizes cooling by regenerator and the low-temperature carbon dioxide heat exchange of carbon dioxide heat-pump, described cold so as to the precipitation of liquid water
Condenser is connected to the heat exchanger, realizes that low temperature high temperature carbon dioxide and the cooling backwater of primary heater and secondary heater change
Heat.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (10)
1. a kind of system of anaerobic digestion of kitchen wastes co-producing hydrogen methane characterized by comprising kitchen garbage receives material
Storehouse, anaerobic sludge supply warehouse, garbage sorting system, inorganic matter recovery bin, crushing device, pyrohydrolysis reactor tank pre-process tank, bacterium
Agent injection device, ammonium hydrogen carbonate injection device, hydrogen production through anaerobic fermentation reactor, hydrogen purification system, hydrogen air accumulator, level-one are detested
Oxygen digester, solid-liquid separation tank, tank for sewage gas, biogas residue tank, level-one biogas slurry tank, second level biogas slurry tank, secondary anaerobic digester, dehydration are set
Standby, desiccation apparatus digests liquid treating system, reservoir, methane purification system, dispenser, aerating column and CO2Air accumulator；
It is successively reacted with garbage sorting system, crushing device, pyrohydrolysis by conveying device the outlet that kitchen garbage receives feed bin
Tank, pretreatment tank, hydrogen production through anaerobic fermentation reactor are connected to level-one anaerobic digestor, and garbage sorting system is arranged organic/inorganic substance and arranges
Outlet, inorganic matter outlet are connected to by conveying device with inorganic matter recovery bin, and pretreatment tank is provided with microbial inoculum inlet and carbon
Sour hydrogen ammonium inlet, microbial inoculum injection device and ammonium hydrogen carbonate injection device connect with microbial inoculum inlet and ammonium hydrogen carbonate inlet respectively
It is logical；Hydrogen production through anaerobic fermentation reactor is provided with hydrogen outlet, mixture outlet and anaerobic sludge input port, anaerobic sludge input port
Be connected to by conveying device with anaerobic sludge supply warehouse, hydrogen outlet by conveying device successively with hydrogen purification system and hydrogen
Air accumulator connection, mixture outlet are connected to by conveying device with level-one anaerobic digestor, the outlet point of level-one anaerobic digestor
Not Tong Guo conveying device be connected to solid-liquid separation tank and tank for sewage gas；
The outlet of solid-liquid separation tank passes through conveying device respectively and is connected to biogas residue tank and level-one biogas slurry tank, and the outlet of biogas residue tank passes through
Conveying device is connected to desiccation apparatus, and the outlet of level-one biogas slurry tank is connected to by conveying device with secondary anaerobic digester, second level
The outlet of anaerobic digestor passes through conveying device respectively and is connected to second level biogas slurry tank and tank for sewage gas, and the outlet of second level biogas slurry tank passes through
Conveying device is connected to dehydration equipment, dehydration equipment be equipped with solid outlet and liquid outlet, solid outlet by conveying device with
Desiccation apparatus connection, liquid outlet are connected to by conveying device with digestion liquid treating system, and the outlet for digesting liquid treating system is logical
Conveying device is crossed to be connected to desiccation apparatus and reservoir；
Tank for sewage gas outlet is connect by conveying device with methane purification system, methane purification system pass through conveying device respectively with add
Mechanism of qi and/or aerating column, CO2Air accumulator connection.
2. system according to claim 1, it is characterised in that: digestion liquid treating system includes: conditioning tank, sub- digestion reaction
Device, anaerobic ammonia oxidation reactor, sedimentation basin, filter device, dehydration device；Dehydration equipment is connected by conveying device and conditioning tank
It connects, conditioning tank, sub- digestion reactor, anaerobic ammonia oxidation reactor, sedimentation basin are sequentially connected by conveying device, sedimentation basin setting
Have liquid outlet, sludge outlet and sludge circulation outlet, liquid outlet by conveying device successively with filter device and reservoir
Connection, sludge outlet are connect by conveying device with dehydration device, and sludge circulation outlet is connect with sub- digestion reactor, dehydration dress
It installs and is equipped with dehydration device liquid outlet and dehydration device solid outlet, the dehydration device liquid outlet of dehydration device and filtering fill
Connection is set, the dehydration device solid outlet of dehydration device is connect with desiccation apparatus.
3. system according to claim 1, it is characterised in that: methane purification system includes: sequentially connected roots blower,
Grade one filter, surge tank, force (forcing) pump, water scrubber, moisture trap, desulfurizer, fire arrester, decarbonization device, dehydrohalogenation
Device, denitrogenation oxygen device, stage compressor, freezing type drier, secondary filter, split-compressor, carbon dioxide heat-pump, three
Grade filter, primary heater, level Four filter, level-one film group, secondary heater, Pyatyi filter, secondary membrane group, natural gas
Storage tank, CNG compressor, caisson；The entrance of roots blower is connected by the outlet of conveying device and tank for sewage gas；Caisson
It is connect by conveying device with dispenser and/or aerating column；Carbon dioxide heat-pump includes recycling sequentially connected pressurized carbon dioxide
Contracting machine, condenser, expansion valve and regenerator.
4. system according to claim 1, it is characterised in that: desiccation apparatus is solar energy desiccation field.
5. system according to claim 1, it is characterised in that: the structure of level-one anaerobic digestor and secondary anaerobic digester
It is identical.
6. system according to claim 5, it is characterised in that: level-one anaerobic digestor includes shell, driving device, lifting
Stirring rod, stirring parts, material inlet, biogas outlet, biogas slurry outlet, bracket；Housing bottom is fixed on bracket, driving dress
It sets and is fixed on case top, lifting stirring rod is hydraulic cylinder comprising cylinder body and piston rod, cylinder body one end and driving device connect
It connects, the other end is passed through to be located in shell with shell, and stirring parts are fixedly connected with piston rod.
7. system according to claim 5, it is characterised in that: the cylinder body for going up and down stirring rod passes through detachable pipeline and setting
It is connected in the oil pump of hull outside.
8. system according to claim 5, it is characterised in that: material inlet and biogas slurry outlet are arranged at housing sidewall
Lower part, the top of housing sidewall is arranged in biogas outlet.
9. system according to claim 5, it is characterised in that: including letting out cinder notch, unload cinder notch and be arranged in housing bottom.
10. system according to claim 5, it is characterised in that: stirring parts include 2 groups of stirring sheets, and every group of stirring sheet is same
One horizontal plane, relative to the axisymmetrical setting of lifting stirring rod, 2 groups of stirring sheets are set gradually along the axis of lifting stirring rod.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305775A (en) * | 2019-07-03 | 2019-10-08 | 河南攸行环保科技有限公司 | A kind of hydrolysis reactor and its application method handling solid waste |
| CN114378105A (en) * | 2022-01-19 | 2022-04-22 | 重庆大学 | Kitchen waste and cellulose biomass synergistic multi-stage treatment system and method |
-
2018
- 2018-10-05 CN CN201821626111.3U patent/CN208995486U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305775A (en) * | 2019-07-03 | 2019-10-08 | 河南攸行环保科技有限公司 | A kind of hydrolysis reactor and its application method handling solid waste |
| CN114378105A (en) * | 2022-01-19 | 2022-04-22 | 重庆大学 | Kitchen waste and cellulose biomass synergistic multi-stage treatment system and method |
| CN114378105B (en) * | 2022-01-19 | 2024-04-12 | 重庆大学 | Multistage treatment system and method for kitchen waste and cellulosic biomass in cooperation |
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