CN205999381U - A kind of anaerobic fermentation of kitchen waste processing system - Google Patents
A kind of anaerobic fermentation of kitchen waste processing system Download PDFInfo
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- CN205999381U CN205999381U CN201620845190.1U CN201620845190U CN205999381U CN 205999381 U CN205999381 U CN 205999381U CN 201620845190 U CN201620845190 U CN 201620845190U CN 205999381 U CN205999381 U CN 205999381U
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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 is related to field of garbage disposal, specifically discloses a kind of anaerobic fermentation of kitchen waste processing system, and the system includes：Raw material cabin, ball mill, grit water separator, oil water separator, homogeneous tank, anaerobic fermentation reactor, methane purifying device, and biogas collecting and transport device；The raw material cabin, ball mill, grit water separator, oil water separator, homogeneous tank, anaerobic fermentation reactor, methane purifying device, and biogas collecting and transport device is linked in sequence successively.The anaerobic fermentation of kitchen waste processing system that the utility model is provided shortens the time that changing food waste material prepares and anaerobic fermentation reacts, and substantially increases the treatment effeciency of changing food waste.
Description
Technical field
The utility model is related to field of domestic garbage treatment, more particularly to a kind of anaerobic fermentation of kitchen waste processing system.
Background technology
With expanding economy and the continuous improvement of living standards of the people, the yield of house refuse grows with each passing day.Wherein,
Changing food waste occupies the principal status of public economy in domestic waste.Compared with other house refuses, changing food waste have water content high,
The features such as content of organics is many, nutrient is abundant, fat content is high, if deal with improperly easily and rotting and then growing mosquitos and flies, disease
Bacterium etc., the healthy composition significant threat to people；And on the other hand, changing food waste is while also have very high recovery valency
Value, if process is proper, can be turned waste into wealth.The domestic processing method to changing food waste includes at present：Raise pigs as the suburbs
Feed, together with other municipal refuses burning electricity generation, landfill and Anaerobic Treatment.Wherein, changing food waste is raised pigs as the suburbs
Feed when, as the source of changing food waste is complicated, is processed into feed and is re-introduced into food chain, it is most likely that cause disease
Propagate, there is the risk of food security；By changing food waste together with other municipal refuses during burning electricity generation, as changing food waste contains
The water yield is high, caloric value is low, and the caloric value that can not only meet burning electricity generation is required, be also easy to cause incinerator burning insufficient and
Two English are produced, severe contamination air, the life and health to people constitute a threat to；By changing food waste together with other municipal refuses
The method of landfill does not only take up a large amount of land resources, and causes serious secondary pollution to soil and underground water, also results in big
The waste of the organic matter of amount；Changing food waste can be changed into biogas by the method for carrying out Anaerobic Treatment to changing food waste, and biogas
It is a kind of regenerative resource of cleaning, can be used for generating electricity and as fuel.Therefore, changing food waste Anaerobic Treatment be a kind of quite
The Food waste treatment method of with prospects.
During the utility model is realized, inventor has found that correlation technique has problems with：Changing food waste anaerobism is sent out
Time-consuming for ferment process, less efficient, easily causes changing food waste and overstocks excessively.How more efficiently changing food waste to be detested
It is current problem demanding prompt solution that aerobe fermentation is processed.
Utility model content
The utility model provides a kind of anaerobic fermentation of kitchen waste processing system, can solve the problem that at anaerobic fermentation of kitchen waste
The reason problem that time-consuming, efficiency is low.
The utility model embodiment provides a kind of anaerobic fermentation of kitchen waste processing system, including：
For collecting and storing the raw material cabin of changing food waste raw material；
For changing food waste raw material is carried out ball-milling treatment, the ball mill of pasty material is obtained；
For the pasty material is carried out girt-water separation, the pasty material after purifying, mineral-type particulate matter and modeling is obtained
The grit water separator of material fragment；
For the pasty material after described purification is carried out water-oil separating, the profit for obtaining the slurry after oil removing and grease divides
From device；
For the slurry after the oil removing is carried out solid content for 5%-8%, C/N ratio be 20-30, temperature be 40 DEG C -60
DEG C adjustment, obtain and reach the homogeneous tank of the material for carrying out optimal anaerobic fermentation reaction condition；
For described reaching is carried out the material of optimal anaerobic fermentation reaction condition and is detested at a temperature of 30 DEG C -35 DEG C
Aerobe fermentation produces the reaction of biogas, obtains the anaerobic fermentation reactor of biogas and biogas slurry；
For the biogas is carried out marsh gas purifying process, the methane purifying device of pure biogas is obtained；And,
For by the pure collecting methane and outward transport biogas collecting and transport device；
The raw material cabin, the ball mill, the grit water separator, the oil water separator, the homogeneous tank, described
Anaerobic fermentation reactor, the methane purifying device, and the biogas collecting and transport device is linked in sequence successively.
Alternatively, the anaerobic fermentation reactor is up flow anaerobic sludge blanket reactor.
Alternatively, the bottom of the up flow anaerobic sludge blanket reactor is provided with charging aperture, and top is provided with collection chamber.
Alternatively, the ball mill includes cylinder and input and output material hollow shaft, and the inner barrel is provided with a large amount of metal ball.
Alternatively, the position of the feed end of the input and output material hollow shaft is higher than discharge end.
Alternatively, the system also includes biogas slurry purifier, the biogas slurry purifier respectively with the girt-water separation
Device, the anaerobic fermentation reactor, methane purifying device connection.
Alternatively, the biogas slurry purifier includes：Flocculation tank, spiral shell pressing dehydrator, desiccation machine and cracking reactor；Its
In,
The flocculation tank, the spiral shell pressing dehydrator, the desiccation machine and the cracking reactor are linked in sequence successively；
The flocculation tank is also connected with the anaerobic fermentation reactor；
The desiccation machine is also connected with the grit water separator；
The cracking reactor is also connected with the methane purifying device.
Alternatively, the methane purifying device includes：Gas holder, desulfurizing tower, decarbonizing tower, defluid device, blower fan and compressor；
The gas holder, the desulfurizing tower, the decarbonizing tower, the defluid device, the blower fan and the compressor are suitable successively
Sequence connects；
The gas holder is also connected with the anaerobic fermentation reactor and the biogas slurry purifier respectively.
Alternatively, the grit water separator includes screw and dirt separator；The screw is arranged at the sand water
The bottom of separator；The dirt separator is arranged at the top of the grit water separator.
Alternatively, the biogas collecting and transport device includes：Bomb, CNG pipeline and torch.
The beneficial effect of the utility model embodiment is, the anaerobic fermentation of kitchen waste that the utility model embodiment is provided
Processing meanss are not required to carry out prescreening to the hard thing of mineral-type in changing food waste, directly changing food waste raw material are entered in ball mill
Row ball-milling treatment obtains pasty material, and repulping rate is fast, efficiency high, effect are good, substantially increases and prepares changing food waste material
Efficiency；Meanwhile, in the utility model embodiment, anaerobic fermentation reaction is carried out using up flow anaerobic sludge blanket reactor, send out
Ferment speed is fast, and material completes anaerobic fermentation course of reaction by only needing 1-2 days, substantially reduces the time of anaerobic fermentation reaction,
Improve the treatment effeciency of changing food waste.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the utility model embodiment, below will be in the utility model embodiment
The required accompanying drawing for using is briefly described.It should be evident that drawings described below is only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is that a kind of flow process of anaerobic fermentation of kitchen waste processing method that the utility model embodiment one is provided is illustrated
Figure；
Fig. 2 is that the flow process of another anaerobic fermentation of kitchen waste processing method that the utility model embodiment two is provided is illustrated
Figure；
Fig. 3 is a kind of structural representation of anaerobic fermentation of kitchen waste processing system that the utility model embodiment three is provided
Figure；
Fig. 4 is the structural representation of another anaerobic fermentation of kitchen waste processing system that the utility model example IV is provided
Figure.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit the utility model.Additionally, involved in each embodiment of the utility model disclosed below
As long as and to technical characteristic do not constitute each other conflict can just be mutually combined.
Embodiment one
As shown in figure 1, a kind of anaerobic fermentation of kitchen waste processing method that the utility model embodiment is provided includes：
Step 110：Changing food waste raw material is carried out ball-milling treatment, obtains pasty material.
In the present embodiment, changing food waste can be food garbage, or rubbish from cooking.Food garbage main source
In catering trades such as restaurant, food and drink restaurant, school lunch service, company dining rooms, with yield big, many, distribution of originating is wide, composition complexity
The features such as, therefore, the food garbage can also include in addition to mainly including the leftovers of above-mentioned catering trade：Disposable chopsticks
The debris such as son, disposable lunch box, paper handkerchief, glass, metal.Rubbish from cooking is mainly the leftover bits and pieces that discard in the daily cooking of resident,
Such as：Egg shell, vegetables rhizome, vegetable and animals oils, the internal organ of poultry, bone etc., as its quantity does not have food garbage huge, typically
Clear and definite refuse classification will not be made, therefore, the debris amount being mixed with rubbish from cooking is more.
In the present embodiment, pasty material is obtained as ball-milling treatment to changing food waste by applying ball mill.By kitchen
The step of rubbish carries out ball-milling treatment can be：Changing food waste raw material is received and transports to raw material cabin；By the spiral transferring in raw material cabin
Send device and hopper that changing food waste feedstock transportation is entered the charging aperture of ball mill；Ball is carried out to changing food waste raw material in ball mill
Mill is processed, and extruding of the changing food waste raw material in ball mill through metal ball, rubbing action are ground into pasty material, wherein, meal
In the garbage raw material of kitchen, organic matter is ground into pulpous state, and the hard material such as wooden thing, metal object, glass is ground into fine granularity, and one
The plastic substances such as secondary property lunch box obtain a certain degree of broken；The pasty material for obtaining is flowed naturally with the potential difference of feed inlet and outlet
Out.Wherein it is preferred to, rotational speed of ball-mill can be set as 3-5 rev/min, and Ball-milling Time is 10-20 minute, the pulpous state for obtaining
Material particles are less than 3mm, and in 8 hours, changing food waste treating capacity is up to 100 tons.
Step 120：The pasty material is carried out girt-water separation, obtains the pasty material after purifying, mineral-type particulate matter
And plastic flakes.
In the present embodiment, the pasty material after purification refers to the organic pulpous state for carrying out follow-up anaerobic fermentation reaction
Material；Mineral-type particulate matter refers to be ground into the hard material such as short grained wooden thing, metal object, glass in ball mill；Modeling
Material fragment refers to the plastics being broken in ball mill.The pasty material is carried out girt-water separation refer to conveying from ball mill
The organic pasty material in original slurry material out, mineral-type particulate matter and plastic flakes are separated, and remove original slurry
Impurity in shape material, including：Mineral-type particulate matter and plastic flakes, the pasty material after being purified, i.e., organic slurry
Material.Its concrete steps can be：The diploma material flowed out from ball mill is imported in grit water separator, mineral-type particulate matter exists
Bottom is precipitated in grit water separator, the screw output through bottom, further, the mineral-type particulate matter of output can be received
Collection packing, makees building materials for roadbed construction or for building materials processing factory；The chips float of the light materials of Plastic in the superiors,
Dirt separator through upper strata is screened；Pasty material after purification is exported to next process from the discharging opening of grit water separator
In.
Step 130：Pasty material after described purification is carried out water-oil separating, obtains the slurry after oil removing and grease.
In the present embodiment, can realize in oil water separator for the pasty material after described purification carrying out grease and water
Separate.Pasty material after purification sub-elects grease and the slurry after oil removing in oil water separator；By the slurry after oil removing from
The discharge line of oil water separator is transported in next process；The Grease Collection of gained is processed, can be directed out and sell,
Biodiesel can also be further processed into.
Step 140：Slurry after the oil removing is carried out solid content for 5%-8%, C/N ratio be 20-30, temperature be 35
The adjustment of DEG C -40 DEG C of grades, obtains and reaches the material for carrying out optimal anaerobic fermentation reaction condition.
In the present embodiment, solid content, C/N ratio and temperature are the influence factors that slurry carries out anaerobic fermentation reaction, wherein,
Solid content refers to the ratio containing solid in the slurry, and its value is equal to 1- water content；C/N passes through than referring to the ratio of carbon and nitrogen
Adjust the pH value that carbon-nitrogen ratio can adjust slurry；Temperature refers to the optimal reaction temperature of slurry.Different material reaction state meetings
Different anaerobic fermentation reaction effect is produced, it is therefore preferred that solid content for 5%-8%, C/N ratio is in the present embodiment
20-30, temperature are 40 DEG C -60 DEG C.
In the present embodiment, the slurry after oil removing can be imported homogeneous tank, after carrying out to the oil removing in homogeneous tank
Slurry carry out the adjustment of the acidizing parameters such as solid content, C/N ratio, temperature, obtaining to reach carries out optimal anaerobic fermentation reaction condition
Material, then which is imported next process from the discharging opening of homogeneous tank.Preferably, the slurry after oil removing is in homogeneous tank
Adjustment time is 1-2 days.
Step 150：Described reaching is carried out the material of optimal anaerobic fermentation reaction condition and enters at a temperature of 30 DEG C -35 DEG C
Row anaerobic fermentation produces the reaction of biogas, obtains biogas and biogas slurry.
In the present embodiment, using upflow anaerobic sludge blanket process method (Up-flow Anaerobic Sludge Bed/
Blanket, UASB) carry out the reaction that the anaerobic fermentation produces biogas.The upflow anaerobic sludge blanket process method is a kind of process
The anaerobic organism method of sewage, is final product by the conversion process of different microorganism participation materials by material conversion
The inorganic matters such as thing natural pond gas and water, can realize in up flow anaerobic sludge blanket reactor (hereinafter referred to as UASB reactor).
One high concentration, highly active Sludge Bed are arranged at the bottom of UASB reactor, and the most of organic matter in material is here through detesting
Aerobe fermentation is degraded to methane and carbon dioxide, and the biogas that period is produced using current and sweat is stirred to material, is made
Material is uniform, so as to eliminating the necessary agitator of fermentation tank and improve the efficiency of anaerobic fermentation.
In the present embodiment, the bottom even entrance for carrying out the material of optimal anaerobic reaction condition from UASB reactor is reached
Reactor, is passed through Sludge Bed during moving upwards, is fully contacted with the mud granule for adhering to thereon, so as to carry out anaerobism
The reaction of biogas is produced under state, wherein, the temperature of reaction is 30 DEG C -35 DEG C, react the biogas for producing with micro-bubble form not
Disconnected releasing, and constantly merge during rising, larger bubble is gradually formed, finally in the gas collection of UASB reactor head
Room is collected, and is subsequently derived, and enters next process.Preferably, to carry out anaerobic fermentation in UASB reactor anti-for material
The time that answers can be 1-2 days.
Step 160：The biogas is carried out marsh gas purifying process, obtains pure biogas.
In the present embodiment, the impurity contained in the biogas that anaerobic fermentation reaction is produced, predominantly hydrogen sulfide (H2S), two
Carbonoxide (CO2) and steam (H2O).Therefore, marsh gas purifying is processed and can be included：Desulfurization process, carbonization treatment, de- liquid are processed, wind
Dry-cure and compression process etc..Wherein it is possible to hydrogen sulfide (desulfurization) is dispelled using active carbon adsorption, using limewash (hydrogen-oxygen
Change calcium) absorption process dispels carbon dioxide (decarburization).Specifically implementation steps can be：The collection chamber of UASB reactor head is received
The biogas of collection imports methane purifying device, and which is purified.
Step 170：By the pure collecting methane and outward transport.
In the present embodiment, the outward transport refers to externally transport the pure biogas for obtaining, and can be transported to biogas and send out
The ground such as power plant, rural area family use, fuel processing factory.According to occupation mode or the difference on conveying ground, can from different collections and
Outward transport mode, including but not limited to：The pure biogas pressurized fluid is melted into liquefied gas, is stored in high-pressure gas cylinder China and foreign countries
Fortune, or, the pure biogas is connected into the outward transport of CNG pipeline.Additionally, potential safety hazard is produced in order to avoid biogas leaks, can
So that the pure biogas is connected torch, when biogas is difficult to and receives fortune, carry out torch burning.
The anaerobic fermentation of kitchen waste processing method that the present embodiment is provided is not required to first filter out the mineral-type in changing food waste
Hard thing, directly carries out ball-milling treatment to changing food waste and obtains pasty material, and repulping rate is fast, efficiency high, effect are good, greatly improves
The efficiency that changing food waste material prepares；Meanwhile, in the present embodiment, anaerobic fermentation is carried out using upflow anaerobic sludge blanket process method
Reaction, fermenting speed are fast, and material completes anaerobic reaction process only need 1-2 days by, substantially reduce that anaerobic fermentation reacts when
Between；Generally speaking, the anaerobic fermentation of kitchen waste processing method that the present embodiment is provided substantially increases the process effect of changing food waste
Rate.
Embodiment two
As shown in Fig. 2 another anaerobic fermentation of kitchen waste processing method that the utility model embodiment is provided, including：
Step 210：Changing food waste raw material is carried out ball-milling treatment, obtains pasty material.
Step 220：The pasty material is carried out girt-water separation, obtains the pasty material after purifying, mineral-type particulate matter
And plastic flakes.
Step 230：Pasty material after described purification is carried out water-oil separating, obtains the slurry after oil removing and grease.
Step 240：Slurry after the oil removing is carried out solid content for 5%-8%, C/N ratio be 20-30, temperature be 35
The adjustment of DEG C -40 DEG C of grades, obtains and reaches the material for carrying out optimal anaerobic fermentation reaction condition.
Step 250：Described reaching is carried out the material of optimal anaerobic fermentation reaction condition and enters at a temperature of 30 DEG C -35 DEG C
Row anaerobic fermentation produces the reaction of biogas, obtains biogas and biogas slurry.
In the present embodiment, above-mentioned steps 210-250 are identical with step 110-150 in embodiment one, and therefore, here is just
Repeat no more.
Step 251：The biogas slurry is carried out biogas slurry purified treatment, obtains combustible gas, oil and carbon black.
In the present embodiment, complete, to anaerobic fermentation reaction, the biogas slurry for producing in biogas slurry cleaning treatment system to purify
Process.First, in the biogas slurry, flocculant is added to carry out flocculating setting process.Wherein, the flocculant has powerful table
Face suction-operated, can be organic flocculant, inorganic flocculating agent or microbial flocculant, it is preferable that can be high from nonionic
Molecular flocculant polyacrylamide (Polyacrylamide, PAM) carries out flocculating setting process to biogas slurry.Then, will be wadded a quilt with cotton
Biogas slurry after solidifying settlement treatment carries out thickening process, obtains waste water and sludge.Subsequently, waste water is processed, reaches row
Discharge after putting standard；The plastic flakes that the sludge and front end are sorted out carry out drying and other treatment.Wherein, the heat of mummification
Amount can come from the heat energy of the high-temperature flue gas of biogas combustion generation.Finally, the material after mummification is entered under high temperature, oxygen free condition
Row cracking reaction, obtains combustible gas, carbon black and oil.The cracking reaction can be carried out in rotary kiln type reactor, obtained
Oil and carbon black can be sold directly as energy product, and combustible gas may be incorporated into methane purifying system, process together with biogas.
Step 260：The biogas and the combustible gas are carried out purified treatment.
In the present embodiment, methane purifying system carries out purified treatment except reacting, to anaerobic fermentation, the biogas for producing, also
Combustible gas to producing in above-mentioned biogas slurry cleaning system carries out purified treatment.Step in its concrete processing procedure and embodiment one
160 is similar, and here is also repeated no more.
Step 270：Purified gas is collected and is transported outward.
In the present embodiment, the purified gas refers to pure biogas and pure combustible gas, described pure
Biogas refers to dispel hydrogen sulfide (H2S), carbon dioxide (CO2) and steam (H2The biogas of the impurity of non-targeted product such as O)；Institute
State the combustible gas that pure combustible gas refers to dispel impurity after cleaning system is processed.To the combustible gas collecting after purification
Similar to the step 170 in embodiment one with the concrete mode of outward transport, here is also repeated no more.
The anaerobic fermentation of kitchen waste processing method that the present embodiment is provided not only substantially increases the preparation of changing food waste material
Efficiency and anaerobic fermentation reaction efficiency, substantially reduce process changing food waste time, improve changing food waste treatment effeciency,
Also completing, to anaerobic reaction, the biogas slurry for producing carries out purified treatment, and processes ratio more thoroughly, and whole reaction system is nothing any two
Secondary discarded object is produced.
Embodiment three
As shown in figure 3, a kind of anaerobic fermentation of kitchen waste processing system that the utility model embodiment is provided, including：With
In collect and storage changing food waste raw material raw material cabin 11, be used for by changing food waste raw material carry out ball-milling treatment ball mill 12,
For pasty material to be carried out the grit water separator 13 of girt-water separation, for the pasty material after purification is carried out water-oil separating
Oil water separator 14, for the slurry after oil removing is carried out solid content for 5%-8%, C/N ratio be 20-30, temperature be 40 DEG C -60
The homogeneous tank 15 of the adjustment of DEG C grade, for being up to carry out the temperature that the material of optimal anaerobic fermentation reaction condition is at 30 DEG C -35 DEG C
Carry out under degree anaerobic fermentation produce biogas reaction anaerobic fermentation reactor 16, for biogas is carried out marsh gas purifying process
Methane purifying device 17, and for by pure collecting methane and outward transport biogas collecting and transport device 18.Raw material cabin 11, ball mill
12nd, grit water separator 13, oil water separator 14, homogeneous tank 15, anaerobic fermentation reactor 16, methane purifying device 17, Yi Jizhao
Gas collecting and transport device 18 is linked in sequence successively.It should be noted that the connected mode between above-mentioned arbitrary equipment can be integral type
Can also be connected by conveyance conduit, here is not especially limited.
In the present embodiment, helix transporting device and hopper, the helix transporting device can be provided with raw material cabin 11
It is connected with ball mill 12 with hopper, in order to changing food waste feedstock transportation is carried out ball-milling treatment to ball mill 12.
Originally applying in example, the type of ball mill 12 can be included but is not limited to：Tube mill, bar type ball mill, ultra-fine
Lamination ball mill, horizontal ball mill, energy-saving ball mill etc., can be single-bin can also be multi-chamber.The ball mill
12 are mainly made up of cylinder and input and output material hollow shaft, wherein, the position of the feed end of the input and output material hollow shaft of ball mill be higher than into
The discharge end of discharging hollow shaft, forms the potential difference of feed inlet and outlet；Cylinder built with substantial amounts of metal ball as abrasive media, due to
The effect of inertia, centrifugal force and frictional force, ball mill barrel can drive metal ball to rotate when rotation, when metal ball quilt
When taking certain height to, depart from cylinder inboard wall due to the Action of Gravity Field of itself and cast or tumble, whereabouts
Material in cylinder is smashed as projectile by metal ball, additionally, ball mill rotate during metal ball each other
Slip effect and rubbing action grinding effect can also be produced to material.Can be adjusted by the rotating speed of regulation ball mill barrel interior
The grinding effect of portion's metal ball, Ball-milling Time can be determined according to the treating capacity of the model of ball mill and material.
In the present embodiment, 13 bottom of grit water separator is provided with screw, is deposited in the mineral-type of bottom for output
Particulate matter；Upper strata is provided with dirt separator, for filtering out the plastic flakes for swimming in the superiors.
In the present embodiment, oil water separator 14 can be：Type or large-scale put by embedded underground type, lifting type, bed；Permissible
Directly connect with the discharging opening of grit water separator 13, it is also possible to as an independent equipment by pipeline and grit water separator 13
It is connected.
In the present embodiment, homogeneous tank 15 is used for carrying out the slurry after oil removing the pre-adjustment before anaerobic fermentation reaction.All
Hybrid mode in matter tank 15 can be water pump forced circulation, air stirring, mechanical agitation or perforation guiding gutter diversion.
In the present embodiment, anaerobic fermentation reactor 16 is up flow anaerobic sludge blanket reactor (hereinafter referred to as UASB
Reactor).One high concentration, highly active Sludge Bed are arranged at the bottom of the UASB reactor, are provided with below the Sludge Bed
Charging aperture；The top of the UASB reactor is provided with collection chamber, for collecting and conveying the biogas that anaerobic fermentation reaction is produced.
In the present embodiment, methane purifying device 17 includes：Gas holder 171, desulfurizing tower 172, decarbonizing tower 173, defluid device
174th, blower fan 175 and compressor 176.Gas holder 171, desulfurizing tower 172, decarbonizing tower 173, defluid device 174, blower fan 175 and compressor
176 are linked in sequence successively, additionally, gas holder 171 is also connected with the collection chamber in anaerobic fermentation retort 16, compressor 176 also with
Biogas collecting and transport device 18 connects.
In the present embodiment, biogas collecting and transport device 18 can be bomb 181 or CNG pipeline 182.Difficult in biogas for avoiding
Potential safety hazard is produced when to receive fortune, the biogas collecting and transport device can also include torch 183.
In the present embodiment, the changing food waste raw material obtained from each place collection is stored in raw material cabin 11；Pass through
Helix transporting device and hopper in raw material cabin 11, changing food waste feedstock transportation is carried out ball-milling treatment in ball mill 12, is obtained
Obtain pasty material；The pasty material is transported to grit water separator 13 carries out girt-water separation, obtains the pasty material after purifying, no
Machine class particulate matter and plastic flakes, wherein, mineral-type particulate matter is exported by the screw of 13 bottom of grit water separator, plastics
Fragment is screened out by the dirt separator on 13 upper strata of grit water separator；Pasty material after the purification for obtaining enters in oil water separator 14
Row water-oil separating, obtains the slurry after oil removing and grease, will can take out after Grease Collection；Slurry after oil removing is conveyed into homogeneous
Tank 15, and to carry out solid content to the slurry after the oil removing for 5%-8%, C/N ratio be tune that 20-30, temperature are 40 DEG C -60 DEG C etc.
Whole, adjustment time is 1-2 days, obtains and reaches the material for carrying out optimal anaerobic fermentation reaction condition；Reaching carries out optimal anaerobism and sends out
The material of ferment reaction condition from the charging aperture of 16 bottom of anaerobic fermentation reactor even into anaerobic fermentation reactor 16, upwards
Pass through Sludge Bed during motion, be fully contacted with the mud granule for adhering to thereon, so as to carry out biogas is produced under anaerobic state
Reaction；The biogas that reaction is obtained enters marsh gas purifying dress after the collection chamber at 16 top of anaerobic fermentation reactor is collected
17 are put, sequentially through gas holder 171, desulfurizing tower 172, decarbonizer 173, defluid device 174, blower fan 175 and compressor 176 etc., is obtained
Pure biogas；The pure biogas for obtaining can be collected by biogas collecting and transport device 18 and externally be conveyed.
The anaerobic fermentation of kitchen waste processing system that the present embodiment is provided is not required to first filter out the mineral-type in changing food waste
Hard thing, directly carries out ball-milling treatment to changing food waste and obtains pasty material, and repulping rate is fast, efficiency high, effect are good, greatly improves
The efficiency that changing food waste material prepares；Meanwhile, in the present embodiment, anaerobism is carried out in up flow anaerobic sludge blanket reactor
Fermentation reaction, fermenting speed are fast, and material completes anaerobic reaction process by only needing 1-2 days, substantially reduce anaerobic fermentation reaction
Time；Generally speaking, the anaerobic fermentation of kitchen waste processing system that the present embodiment is provided substantially increases the place of changing food waste
Reason efficiency.
Example IV
As shown in figure 4, another anaerobic fermentation of kitchen waste system that the utility model embodiment is provided.Itself and embodiment
Three difference is that in the present embodiment, the system also includes biogas slurry purifier 19,19 points of the biogas slurry purifying processing device
It is not connected with grit water separator 13, anaerobic fermentation reactor 16, methane purifying device 17.
In the present embodiment, biogas slurry purifier 19 includes：Flocculation tank 191, spiral shell pressing dehydrator 192, desiccation machine 193, with
And cracking reactor 194.Flocculate tank 191, spiral shell pressing dehydrator 192, desiccation machine 193, and cracking reactor 194 sequentially connects successively
Connect.Wherein, flocculation tank 191 is also connected with anaerobic fermentation reactor 16；Desiccation machine 193 is also connected with grit water separator 13；Cracking
Reactor 194 is also connected with methane purifying device 17.
In the present embodiment, anaerobic fermentation has been reacted after the biogas slurry of generation carries out flocculating setting process in flocculation tank 191,
Entering spiral shell pressing dehydrator 192 carries out thickening, produces waste water and sludge；Qualified discharge after wastewater treatment, sludge and front end sand
The plastic flakes that separator 13 is sub-elected simultaneously enter desiccation machine 193 and carry out mummification processed, enter sludge cracking afterwards
Reactor 194, produces combustible gas, oil and carbon black.Oil and carbon black can be sold directly as energy product, and combustible gas may be incorporated into biogas
Purifier 17, is processed together with biogas.Therefore, in the present embodiment, methane purifying device 17 is not only reacted to anaerobic fermentation
The biogas of generation carries out purified treatment, and the also combustible gas to the output of biogas slurry purifier carries out purified treatment.Finally by biogas
Collecting and transport device 19 is collected and is transported outward.
The anaerobic fermentation of kitchen waste processing system that the present embodiment is provided not only substantially increases the preparation of changing food waste material
Efficiency and anaerobic fermentation reaction efficiency, substantially reduce process changing food waste time, improve changing food waste treatment effeciency,
Completing, also by biogas slurry purifier, the biogas slurry for producing to anaerobic reaction carries out purified treatment, and processes ratio more thoroughly so that whole
Individual reaction system is produced nothing any secondary waste thing.
Preferred embodiment of the present utility model is the foregoing is only, not in order to limit the utility model, all at this
Any modification, equivalent and improvement that is made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of anaerobic fermentation of kitchen waste processing system, it is characterised in that include：
For collecting and storing the raw material cabin of changing food waste raw material；
For changing food waste raw material is carried out ball-milling treatment, the ball mill of pasty material is obtained；
For the pasty material is carried out girt-water separation, the pasty material after purifying, mineral-type particulate matter and plastics are obtained broken
The grit water separator of piece；
For the pasty material after described purification is carried out water-oil separating, the water-oil separating of the slurry after oil removing and grease is obtained
Device；
For the slurry after the oil removing is carried out solid content for 5%-8%, C/N ratio be 20-30, temperature be 40 DEG C -60 DEG C
Adjustment, obtains the homogeneous tank for reaching the material for carrying out optimal anaerobic fermentation reaction condition；
For described reaching is carried out the material of optimal anaerobic fermentation reaction condition and carries out anaerobism at a temperature of 30 DEG C -35 DEG C and send out
Ferment produces the reaction of biogas, obtains the anaerobic fermentation reactor of biogas and biogas slurry；
For the biogas is carried out marsh gas purifying process, the methane purifying device of pure biogas is obtained；And,
For by the pure collecting methane and outward transport biogas collecting and transport device；
The raw material cabin, the ball mill, the grit water separator, the oil water separator, the homogeneous tank, the anaerobism are sent out
Ferment reactor, the methane purifying device, and the biogas collecting and transport device is linked in sequence successively.
2. system according to claim 1, it is characterised in that the anaerobic fermentation reactor is upflow anaerobic sludge blanket process
Reactor.
3. system according to claim 2, it is characterised in that the bottom of the up flow anaerobic sludge blanket reactor is arranged
There is charging aperture, top is provided with collection chamber.
4. system according to claim 1, it is characterised in that the ball mill includes cylinder and input and output material hollow shaft, institute
State inner barrel and be provided with a large amount of metal ball.
5. system according to claim 4, it is characterised in that the position of the feed end of the input and output material hollow shaft is higher than
Material end.
6. the system according to any one of claim 1-5, it is characterised in that the system also includes biogas slurry purifier,
The biogas slurry purifier is connected with the grit water separator, the anaerobic fermentation reactor, the methane purifying device respectively.
7. system according to claim 6, it is characterised in that the biogas slurry purifier includes：Flocculation tank, spiral shell press-dehydrating
Machine, desiccation machine and cracking reactor；Wherein,
The flocculation tank, the spiral shell pressing dehydrator, the desiccation machine and the cracking reactor are linked in sequence successively；
The flocculation tank is also connected with the anaerobic fermentation reactor；
The desiccation machine is also connected with the grit water separator；
The cracking reactor is also connected with the methane purifying device.
8. system according to claim 6, it is characterised in that the methane purifying device includes：Gas holder, desulfurizing tower, de-
Carbon tower, defluid device, blower fan and compressor；
The gas holder, the desulfurizing tower, the decarbonizing tower, the defluid device, the blower fan and the compressor sequentially connect successively
Connect；
The gas holder is also connected with the anaerobic fermentation reactor and the biogas slurry purifier respectively.
9. the system according to claim 1,6 or 7, it is characterised in that the grit water separator includes screw and removes
Dirty device；The screw is arranged at the bottom of the grit water separator；The dirt separator is arranged at the grit water separator
Top.
10. the system according to claim 1-5,7,8 any one, it is characterised in that the biogas collecting and transport device includes：High
Pressure bottle, CNG pipeline and torch.
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| CN201620845190.1U CN205999381U (en) | 2016-08-05 | 2016-08-05 | A kind of anaerobic fermentation of kitchen waste processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754186A (en) * | 2021-09-02 | 2021-12-07 | 北京华夏大禹科技有限公司 | Oily wastewater treatment system |
| CN115055481A (en) * | 2022-06-02 | 2022-09-16 | 中国轻工业广州工程有限公司 | Process for garbage sorting and system and application thereof |
-
2016
- 2016-08-05 CN CN201620845190.1U patent/CN205999381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754186A (en) * | 2021-09-02 | 2021-12-07 | 北京华夏大禹科技有限公司 | Oily wastewater treatment system |
| CN115055481A (en) * | 2022-06-02 | 2022-09-16 | 中国轻工业广州工程有限公司 | Process for garbage sorting and system and application thereof |
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