CN110420979A - A kind of anaerobic digestion handling method of kitchen garbage - Google Patents
A kind of anaerobic digestion handling method of kitchen garbage Download PDFInfo
- Publication number
- CN110420979A CN110420979A CN201910836740.1A CN201910836740A CN110420979A CN 110420979 A CN110420979 A CN 110420979A CN 201910836740 A CN201910836740 A CN 201910836740A CN 110420979 A CN110420979 A CN 110420979A
- Authority
- CN
- China
- Prior art keywords
- kitchen garbage
- actuator
- rotating block
- kitchen
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000029087 digestion Effects 0.000 title claims abstract description 16
- 238000000855 fermentation Methods 0.000 claims abstract description 21
- 239000004519 grease Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000010806 kitchen waste Substances 0.000 claims abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 238000009300 dissolved air flotation Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 230000004151 fermentation Effects 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000010909 process residue Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Abstract
The invention discloses a kind of anaerobic digestion handling methods of kitchen garbage, comprising the following steps: sorting, broken, water-oil separating, desanding, anaerobic fermentation.The sundries such as metal, polybag in first choice removal kitchen garbage, kitchen garbage is crushed again, keep kitchen garbage fermentation more abundant, the grease in kitchen garbage is removed again, accelerate anaerobic fermentation of kitchen waste degradation, then remove the solid matter that cannot be degraded, reduces the abrasion of equipment, the working efficiency for improving anaerobic fermentation simultaneously, ferments kitchen garbage finally by fermentation system to obtain gas.
Description
Technical field
The present invention relates to a kind of anaerobic digestion handling methods of kitchen garbage, and in particular to a kind of processing of kitchen garbage.
Background technique
Kitchen garbage refer to the food waste of family, school, organ, canteen and catering industry, food and drink residue,
Food processing waste material and the animal and plant fat and all kinds of oil water mixtures that can not be eaten again, are a part of domestic waste.
Country's rubbish from cooking processing mode mainly to fill, based on burning disposal together with house refuse at present, landfill disposal mode
The service life of landfill yard can be reduced, and for burning disposal mode, China only has a small number of flourishing cities such as Shenzhen and uses rubbish
Rubbish incineration technology, and also not to pernicious gases, dust, the waste water such as dioxin, nitrogen oxides, sulfur dioxide caused by burning etc.
It can be effectively controlled.In order to realize the sustainable development of resource, it is necessary to find more effective processing mode, that realizes rubbish from cooking has
Recycling is imitated, great meaning is generated to the economy and environmental development in China.
Anaerobic digestion is a series of processes of microorganism decomposing organism degradation material in the case where oxygen is not present.It is raw
Biodegradable material includes waste paper, kitchen garbage, high concentrated organic wastewater, animal excrements and liquid wastes etc..Anaerobic digestion
It is suitable for the wet organic material of processing, is widely used in the processing of debirs.There are reactors for existing Anaerobic Digestion
There is dross in surface, and stirring efficiency is low, ferments the problems such as insufficient.
Summary of the invention
The present invention for overcome the deficiencies in the prior art, provides a kind of anaerobic digestion handling method of kitchen garbage.
To achieve the goals above, the invention adopts the following technical scheme: a kind of kitchen garbage
Anaerobic digestion handling method, the following steps are included:
A, it sorts: sorting process being concentrated to the kitchen garbage of recycling, isolates the sundries such as the metal contained in rubbish, polybag；
B, it is crushed: damaged processing is carried out to the kitchen garbage after sorting using kibbler roll；
C, water-oil separating: first passing through heating system, solid grease is converted into free state grease, then remove by dissolved air flotation technology
Remove the grease in kitchen garbage；
D, desanding: there are also the solid matters that some fine sands cannot be degraded after kitchen garbage breaking, are removed and are eaten using desanding device
Sand in the rubbish of kitchen；
E, anaerobic fermentation: enter by pretreated kitchen garbage and carry out anaerobic fermentation in anaerobic fermentation system；
Wherein, the anaerobic fermentation system includes fermenter, the first support on fermenter
With second support, the agitating device in fermenter, the gas outlet on fermenter and slag-drip opening, feed inlet, institute
Stating agitating device includes main shaft, the helical-blade on main shaft, multiple paddles on helical-blade, consolidating on main shaft
Fixed pole, the first actuator in fixed link and the second actuator, the first rotating shaft in fixed link and the second shaft are set
In in first rotating shaft first gear and second gear, with first gear and the ratcheting guide rail of second gear, the first actuator and
Second actuator drives first gear and second gear rotation, drives main axis, the helical-blade rotation on main shaft, simultaneously
Paddle is stirred, and completes the stirring to kitchen garbage；The present invention carries out the kitchen garbage in fermenter by helical-blade
Whole stirring, the helical-blade are hollow setting, and the paddle is set in helical-blade hollow cavity, the dross on fermenter upper layer and
The suction that kitchen garbage drives by helical-blade and paddle generates enters in hollow cavity, and kitchen garbage is from helical-blade lower exit port
Outflow, while helical-blade thrust is given when paddle rotation, keep helical-blade rotation more light, also kitchen garbage is stirred again
It mixes, accelerates kitchen garbage stirring, improve mixing effect and keep fermentation more abundant；First actuator and the second actuator make solid
Fixed pole rotation, while making main axis, the main shaft is located at fixed link center, drives the first actuator and the second actuator
Dynamic main axis is more laborsaving.
Particle size after cracking in the step b is less than 10mm；Pump and line clogging are avoided, while keeping fermentation more abundant, is reduced
Subsequent handling load.
Temperature in the step c is controlled at 40-60 DEG C；Keep solid grease conversion free state institute Energy in use minimum,
It avoids temperature excessively high simultaneously, make kitchen garbage adherency on the heating element and crusts, influence thermal energy transmitting, finally influence solid
Grease converts free state.
The upper and lower noon respectively stirs once daily after anaerobic fermentation normal gas producing in the step e, is every time 10min；Make to send out
Ferment is more evenly abundant, and increasing has the gas of utility value to generate.
Desanding device in the step d includes third bracket, the pedestal on third bracket, on pedestal
Three actuators, the first spring on pedestal, second spring, third spring and the 4th spring, on third actuator
First rotating block, the second rotating block above the first rotating block, the vibration box above pedestal, on vibration box
Deflector chute, the 4th bracket on pedestal, equipped with the feeding tank on the 4th bracket, first rotating block and the second rotating block
Structure is identical, and the first rotating block is equipped with the convex block of multiple circular array, and second rotating block is set on vibration box；Kitchen rubbish
Rubbish enters in vibration box through feeding tank, and third actuator drives the rotation of the first rotating block, and vibration box shakes, the sand in kitchen garbage
Son moves down, and the kitchen garbage of upper part is discharged by deflector chute, completes kitchen garbage desanding operation；Make by third actuator
The rotation of one rotating block, makes vibration box generate vibration, and the sand in kitchen garbage is made to sink to lower level floor, and upper layer kitchen garbage passes through
Deflector chute makes kitchen garbage enter next process, while the first spring, second spring, third spring and the 4th spring are to vibration
Case supporting role does not influence the vibration of vibration box in vibration box vibration.
The invention has the following advantages that the dross and kitchen garbage on fermenter upper layer drive by helical-blade and paddle produces
Raw suction enters in hollow cavity, and kitchen garbage is flowed out from helical-blade lower exit port, while pushing away when paddle rotation to helical-blade
Power keeps helical-blade rotation more light, is also again stirring for kitchen garbage, accelerates kitchen garbage stirring, improves stirring effect
Fruit and make fermentation it is more abundant.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is side structure schematic diagram of the invention.
Fig. 3 is enlarged diagram at the A in Fig. 2.
Fig. 4 is diagrammatic cross-section one of the invention.
Fig. 5 is diagrammatic cross-section two of the invention.
Fig. 6 is diagrammatic cross-section three of the invention.
Fig. 7 is diagrammatic cross-section four of the invention.
Fig. 8 is enlarged diagram at the B in Fig. 7.
Fig. 9 is diagrammatic cross-section five of the invention.
Figure 10 is the cut-away section structural schematic diagram of desanding device.
Figure 11 is the structural schematic diagram one of helical-blade.
Figure 12 is the structural schematic diagram two of helical-blade.
Figure 13 is the structural schematic diagram of the first rotating block.
Specific embodiment
In order to make those skilled in the art better understand the present invention program, below in conjunction in the embodiment of the present invention
Attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.
A kind of anaerobic digestion handling method of kitchen garbage, the following steps are included:
A, it sorts: sorting process being concentrated to the kitchen garbage of recycling, isolates the sundries such as the metal contained in rubbish, polybag；
B, it is crushed: damaged processing is carried out to the kitchen garbage after sorting using kibbler roll；
C, water-oil separating: first passing through heating system, solid grease is converted into free state grease, then remove by dissolved air flotation technology
Remove the grease in kitchen garbage；
D, desanding: there are also the solid matters that some fine sands cannot be degraded after kitchen garbage breaking, are removed and are eaten using desanding device
Sand in the rubbish of kitchen；
E, anaerobic fermentation: enter by pretreated kitchen garbage and carry out anaerobic fermentation in anaerobic fermentation system；
As shown in figures 1-13, a kind of anaerobic digestion handling method of kitchen garbage, the desanding device include third bracket 8, set
In the pedestal 9 on third bracket, the third actuator 10 on pedestal, the first spring 11 on pedestal, second spring
12, third spring 13 and the 4th spring 14, the first rotating block 15 on third actuator, above the first rotating block
Second rotating block 16, the vibration box 17 above pedestal, the deflector chute 18 on vibration box, the 4th on pedestal
Frame 19, equipped with the feeding tank 20 on the 4th bracket, first rotating block is identical as the second rotation block structure, on the first rotating block
Convex block equipped with multiple circular array, second rotating block are set on vibration box；Kitchen waste feeding tank enters vibration box
Interior, third actuator drives the rotation of the first rotating block, and vibration box shakes, and the sand in kitchen garbage moves down, the kitchen of upper part
Rubbish is discharged by deflector chute 18, completes kitchen garbage desanding operation.
Further, it is described by desanding device further include collecting vessel 21, set on collecting vessel bottom pump 22, be set to pump on
Transfer canal 23, remove the kitchen garbage of sand and enter in collecting box by deflector chute 18, pump the kitchen rubbish in collecting box
Rubbish sucks in transfer canal, and transfer canal one end is connected on pump, and the other end is connected to the feed inlet on fermenter, by pumping handle
Kitchen garbage is injected into fermenter.
Further, the first support 2 on the fermenter and second support 3, the agitating device 4 in fermenter,
Gas outlet 5 and slag-drip opening 6 on fermenter, feed inlet 7, the agitating device include main shaft 41, the spiral shell on main shaft
Vane 42, multiple paddles 43 on helical-blade, the fixed link 44 on main shaft, the first driving in fixed link
Part 45 and the second actuator 46, the first rotating shaft 47 in fixed link and the second shaft 48, first in first rotating shaft
Gear 49 and second gear 50, the guide rail 51 ratcheting with first gear and second gear, the first actuator 45 and the second actuator
46 driving first gears 49 and second gear 50 rotate, and main shaft 41 is driven to rotate, and the helical-blade rotation on main shaft is stirred simultaneously
It mixes leaf to be stirred, completes the stirring to kitchen garbage.
Claims (5)
1. a kind of anaerobic digestion handling method of kitchen garbage, it is characterised in that: the following steps are included:
A, it sorts: sorting process being concentrated to the kitchen garbage of recycling, isolates the sundries such as the metal contained in rubbish, polybag；
B, it is crushed: damaged processing is carried out to the kitchen garbage after sorting using kibbler roll；
C, water-oil separating: first passing through heating system, solid grease is converted into free state grease, then remove by dissolved air flotation technology
Remove the grease in kitchen garbage；
D, desanding: there are also the solid matters that some fine sands cannot be degraded after kitchen garbage breaking, are removed and are eaten using desanding device
Sand in the rubbish of kitchen；
E, anaerobic fermentation: enter by pretreated kitchen garbage and carry out anaerobic fermentation in anaerobic fermentation system；
Wherein, the anaerobic fermentation system includes fermenter (1), first support (2) and second support on fermenter
(3), the agitating device in fermenter (4), the gas outlet (5) on fermenter and slag-drip opening (6), feed inlet (7), institute
Agitating device is stated to include main shaft (41), the helical-blade (42) on main shaft, multiple paddles (43) on helical-blade, set
In the fixed link (44) on main shaft, the first actuator (45) in fixed link and the second actuator (46), it is set to fixed link
On first rotating shaft (47) and the second shaft (48), the first gear (49) in first rotating shaft and second gear (50), with
First gear and the ratcheting guide rail (51) of second gear, the first actuator (45) and the second actuator (46) drive first gear
(49) it is rotated with second gear (50) rotation, drive main shaft (41) rotation, the helical-blade on main shaft, while paddle progress
The stirring to kitchen garbage is completed in stirring.
2. a kind of anaerobic digestion handling method of kitchen garbage according to claim 1, it is characterised in that: the step b
In particle size after cracking be less than 10mm.
3. a kind of anaerobic digestion handling method of kitchen garbage according to claim 1, it is characterised in that: the step c
In warmly take control at 40-60 DEG C.
4. a kind of anaerobic digestion handling method of kitchen garbage according to claim 1, it is characterised in that: the step e
In anaerobic fermentation normal gas producing after daily the upper and lower noon respectively stir once, be every time 10min.
5. a kind of anaerobic digestion handling method of kitchen garbage according to claim 1, it is characterised in that: the step d
In desanding device include third bracket (8), the pedestal (9) on third bracket, the third actuator on pedestal
(10), the first spring (11) on pedestal, second spring (12), third spring (13) and the 4th spring (14), be set to the
The first rotating block (15) on three actuators, the second rotating block (16) above the first rotating block, above pedestal
Vibration box (17), the deflector chute (18) on vibration box, the 4th bracket (19) on pedestal, equipped on the 4th bracket
Feeding tank (20), first rotating block is identical as the second rotation block structure, and the first rotating block is equipped with multiple circular array
Convex block, second rotating block are set on vibration box；Kitchen waste feeding tank enters in vibration box, third actuator driving the
The rotation of one rotating block, vibration box shake, and the sand in kitchen garbage moves down, and the kitchen garbage of upper part is arranged by deflector chute (18)
Out, kitchen garbage desanding operation is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910836740.1A CN110420979B (en) | 2019-09-05 | 2019-09-05 | Anaerobic digestion treatment method for kitchen waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910836740.1A CN110420979B (en) | 2019-09-05 | 2019-09-05 | Anaerobic digestion treatment method for kitchen waste |
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| Publication Number | Publication Date |
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| CN110420979A true CN110420979A (en) | 2019-11-08 |
| CN110420979B CN110420979B (en) | 2021-01-15 |
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| CN201910836740.1A Active CN110420979B (en) | 2019-09-05 | 2019-09-05 | Anaerobic digestion treatment method for kitchen waste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517617A (en) * | 2020-12-26 | 2021-03-19 | 河南省华资环保科技有限责任公司 | Kitchen waste intelligent treatment all-in-one machine |
| CN113102095A (en) * | 2021-03-10 | 2021-07-13 | 长沙工研院环保有限公司 | Hydraulic flotation anaerobic fermentation treatment system for kitchen waste |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517617A (en) * | 2020-12-26 | 2021-03-19 | 河南省华资环保科技有限责任公司 | Kitchen waste intelligent treatment all-in-one machine |
| CN113102095A (en) * | 2021-03-10 | 2021-07-13 | 长沙工研院环保有限公司 | Hydraulic flotation anaerobic fermentation treatment system for kitchen waste |
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| CN110420979B (en) | 2021-01-15 |
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