CN109136074B - Multi-material combined fermentation dry anaerobic digestion complete device and treatment method - Google Patents
Multi-material combined fermentation dry anaerobic digestion complete device and treatment method Download PDFInfo
- Publication number
- CN109136074B CN109136074B CN201811172492.7A CN201811172492A CN109136074B CN 109136074 B CN109136074 B CN 109136074B CN 201811172492 A CN201811172492 A CN 201811172492A CN 109136074 B CN109136074 B CN 109136074B
- Authority
- CN
- China
- Prior art keywords
- belt
- anaerobic digestion
- pipe
- feeding
- tank
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 152
- 230000029087 digestion Effects 0.000 title claims abstract description 81
- 238000000855 fermentation Methods 0.000 title claims abstract description 24
- 230000004151 fermentation Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 52
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 28
- 238000007670 refining Methods 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims description 32
- 238000004140 cleaning Methods 0.000 claims description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 22
- 239000010865 sewage Substances 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- 235000011837 pasties Nutrition 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 239000008399 tap water Substances 0.000 claims description 6
- 235000020679 tap water Nutrition 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 239000013072 incoming material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000010806 kitchen waste Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 239000011343 solid material Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 6
- 239000010802 sludge Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002154 agricultural waste Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- -1 feces Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000010921 garden waste Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002881 soil fertilizer Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/16—Solid state fermenters, e.g. for koji production
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/04—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by injection or suction, e.g. using pipettes, syringes, needles
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/16—Screw conveyor
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/02—Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a multi-material combined fermentation dry anaerobic digestion complete device and a treatment method. The material is sent into the anaerobic digestion tank through the feed belt, the receiving belt, the refining belt, the distributing belt, the high solid material storage bin, the receiving screw, the conveying screw and the feeding screw, and the low solid material storage bin is connected with the anaerobic digestion tank through a pipeline, and a stirring system is arranged in the anaerobic digestion tank. According to the invention, various materials are sent into the anaerobic digestion tank through different pipelines, and various materials are treated in the anaerobic digestion tank at the same time, so that the problems of urban garbage growth and various types are solved.
Description
Technical Field
The invention relates to the technical field of anaerobic digestion treatment of perishable garbage, in particular to a multi-material combined fermentation dry anaerobic digestion complete device with different properties and different types and a treatment method.
Background
The urban domestic kitchen waste, livestock and poultry manure, agricultural waste, garden waste and other perishable waste are mainly organic matters, and can be treated by adopting anaerobic fermentation technology, so that harmless treatment is realized, clean energy biogas is obtained, ecological environment is improved, and biogas residues generated by anaerobic fermentation can be used for developing high-quality organic fertilizers and applied to farmlands, soil is improved, and soil fertilizer efficiency is increased.
However, with the development of urban treatment, the yield of the perishable garbage waste is rapidly increased, the terminal treatment facilities have longer production period from planning to building, and the different types of perishable garbage waste management departments belong to different units such as garden green departments, sanitation departments, agricultural departments, animal husbandry departments and the like, and the treatment technology and the treatment terminal facilities of the perishable garbage waste cannot be shared, so that the urban perishable garbage terminal treatment facilities cannot be in place synchronously with the increase of the perishable garbage waste, and the garbage disposal is trapped.
If the different kinds of perishable garbage can be subjected to effective pretreatment and uniform mixing and then combined treatment, the large-scale effect of the anaerobic digestion project of the perishable garbage can be realized, and the comprehensive treatment cost of the urban perishable garbage is reduced.
The conventional dry anaerobic digestion complete equipment is provided with a pretreatment facility, a belt conveying facility, a material temporary storage tank, a spiral feeding facility, an anaerobic digestion tank, a stirring system and an anaerobic sludge discharging device. The existing equipment for the anaerobic digestion project of the perishable garbage is generally of a single type, can only treat materials of a certain type under normal conditions, cannot jointly treat other materials, and cannot achieve a synergistic treatment effect and an emergency treatment effect on the perishable garbage of other types in cities (such as excrement, sludge, kitchen garbage, garden garbage and the like).
Disclosure of Invention
The invention aims to provide a multi-material combined fermentation dry anaerobic digestion complete device for cooperatively disposing various kinds of perishable garbage, which solves the problem of insufficient or unbalanced terminal facilities of different kinds of garbage disposal facilities in cities.
Another object of the invention is to provide a method for processing a multi-material combined fermentation dry anaerobic digestion complete set which is used for cooperatively disposing various kinds of perishable garbage.
In order to achieve the above object, the technical solution of the present invention is:
the invention relates to a multi-material combined fermentation dry anaerobic digestion complete device and a treatment method, wherein the multi-material combined fermentation dry anaerobic digestion complete device comprises a first incoming material belt, a second incoming material belt, a first receiving material belt, a second receiving material belt, a material homogenizing belt, a material distributing belt, a crusher, a first timing feeder, a second timing feeder, a high-solid-content material storage bin, a material receiving spiral, a conveying spiral, a feeding spiral, a first feeding safety valve, a low-solid-content material storage bin, a stirrer, a conveying pump, a closed conveying pipe, a cleaning pipe valve, a second feeding safety valve, a sewage draining pipe, an anaerobic digestion tank, a stirring system, a biogas draining pipe, a discharging pipe, a vacuum tank, a conveying pipe, an air compressor, a vacuum pump and an air pressure relief pipe;
the first feeding belt discharging end is connected with the first timing feeder, the first receiving belt is arranged below the first timing feeder discharging end, and the first receiving belt discharging end is connected with the refining belt;
the second feeding belt discharging end is connected with the crusher, the second timing feeder is arranged at the discharging end of the crusher, the second receiving belt is arranged below the second timing feeder discharging end, and the discharging end of the second receiving belt is connected with the refining belt;
the material mixing device is characterized in that the discharge end of the material mixing belt is connected with the material distribution belt, the discharge end of the material distribution belt is connected with the high-solid-content material storage bin, the feed end of the material receiving screw is connected with the discharge end of the high-solid-content material storage bin, the discharge end of the material receiving screw is sequentially connected with the conveying screw and the feed screw, the discharge end of the feed screw is connected with the inlet of the anaerobic digestion tank through a pipeline, a first feed safety valve is arranged at the inlet of the anaerobic digestion tank, a stirring system is arranged in the anaerobic digestion tank, a methane discharge port is formed in the anaerobic digestion tank, and the methane discharge port is connected with a methane discharge pipeline and is provided with a valve;
the low-solid-content material storage bin is internally provided with a stirrer, the low-solid-content material storage bin is connected with the anaerobic digestion tank through a closed conveying pipe, a conveying pump is arranged on the closed conveying pipe, a water inlet and a sewage outlet are formed in the closed conveying pipe, a cleaning pipe is connected to the water inlet, a cleaning pipeline valve is arranged on the cleaning pipe, a sewage pipe is connected to the sewage outlet, and a sewage valve is arranged on the sewage pipe;
the outlet of the anaerobic digestion tank is connected with a vacuum tank through a discharge pipe, the vacuum tank is respectively connected with an air compressor and a vacuum pump through pipelines, and valves are respectively arranged on the pipelines connected with the vacuum tank, the air compressor and the vacuum pump; the vacuum tank is connected with a dehydration workshop through a conveying pipe, a pressure relief opening is formed in the vacuum tank and is connected with an air pressure relief pipe, and valves are arranged on the conveying pipe and the air pressure relief pipe.
The invention relates to a treatment method of a multi-material combined fermentation dry anaerobic digestion complete device, which comprises the following steps:
s1, after kitchen waste is purified by a front-end pretreatment workshop, screening out proper perishable garbage, and conveying the perishable garbage to a first timing feeder through a first feeding belt; the first timing feeder is set according to a program, and the perishable garbage is conveyed and discharged to the first receiving belt in a timing and quantitative mode; then the mixture is conveyed to the lower end of the refining belt;
s2, feeding other garbage treated in a combined way to a second feeding belt manually or mechanically; then delivering blanking to a receiving hopper of a crusher, crushing to a proper particle size by the crusher, and then dropping to a second timing feeder; the second timing feeder can be set according to a program, and other garbage is conveyed and discharged to the second receiving belt in a timing and quantitative mode; then the mixture is conveyed to the upper end of the refining belt;
s3, the lower end of the refining belt receives the perishable garbage and then conveys the perishable garbage upwards, and the upper end of the refining belt receives other garbage and then conveys the perishable garbage to the distribution belt;
s4, conveying and blanking the mixed materials to a high-solid-content material storage bin through a material distribution belt;
s5, enabling the high-solid-content mixed material to enter an anaerobic digestion tank through a material receiving screw, a conveying screw and a feeding screw for anaerobic digestion treatment;
s6, a first feeding safety valve is arranged at the joint of the feeding screw and the anaerobic digestion tank;
s7, directly unloading the pasty materials to a low-solid-content material storage bin, and then starting a stirrer to mix;
s8, starting a conveying pump to enable the pasty material to enter an anaerobic digestion tank through a closed conveying pipeline for treatment;
the front end and the rear end of the closed conveying pipeline are respectively provided with a cleaning pipe, a cleaning pipeline valve, a blow-off pipe, a blow-off valve and a second feeding safety valve which are connected with tap water, when the slurry material is interrupted for more than an hour, the cleaning pipeline valve and the blow-off valve are opened by immediately closing the second feeding safety valve in order to prevent the deposited material in the closed conveying pipeline from hardening and blocking the pipeline, and the high-pressure tap water is connected to flush the material in the pipeline to a sewage grit chamber for disposal;
s9, after various materials enter the anaerobic digestion tank, stirring and running through a stirring system, and flowing from one end (inlet end) to the other end (outlet end) of the digestion tank;
s10, after various materials are digested by an anaerobic digestion tank, unloading is carried out from an unloading workshop;
in the step S10, the unloading mode from the unloading workshop can be fully automatically operated through an anaerobic DCS control terminal system, and the main flow is as follows:
(1) Firstly, naturally evacuating air in a vacuum tank, and then starting a vacuum pump to vacuumize the vacuum tank;
(2) Then discharging the materials in the anaerobic digestion tank into a vacuum tank through a discharge pipe;
(3) Finally, pushing the materials in the vacuum tank to be discharged from the conveying pipe to a dehydration workshop through high-pressure air;
(4) Repeating the step (1), and circularly operating until the material in the anaerobic digestion tank stops discharging.
After the scheme is adopted, the invention has the following advantages:
(1) The objects of the processed materials are different: according to the invention, various materials are respectively fed into the anaerobic digestion tank through the first feeding belt, the second feeding belt and the discharging platform, and the materials with different properties, different components and different solid contents are simultaneously treated in the anaerobic digestion tank, so that the problems of urban garbage growth and various types are solved.
(2) And (3) uniformly mixing materials: the invention starts from source material conveying, and is provided with measures such as a timing feeder, a two-layer overhead belt conveying and mixing mode, a slurry material stirrer and the like with uniform feeding characteristics, so that the materials to be fermented are ensured to be more uniform after entering a tank, and the anaerobic fermentation production efficiency is improved.
(3) Stirring operation mode: the paddles of the stirring shaft are of two different types (4 paddles and 2 paddles are respectively configured), and the stirring shafts are combined at intervals, so that the stirring operation in all directions without dead angles is realized, and the stirring is more uniform. Meanwhile, the operation mode of the stirring shaft can be flexibly adjusted according to different materials and different fermentation periods, so that the production is more active and scientific.
The invention will be further described with reference to the drawings and the specific examples.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the anaerobic digester of the present invention;
FIG. 3 is a left side view of the anaerobic digester of the present invention.
Detailed Description
As shown in fig. 1-3, the invention is a multi-material combined fermentation dry anaerobic digestion complete device, which comprises a first feeding belt 1, a second feeding belt 2, a first receiving belt 3, a second receiving belt 4, a refining belt 5, a distributing belt 6, a crusher 7, a second timing feeder 8, a first timing feeder 9, a high-solid-content material storage bin 10, a receiving screw 11, a conveying screw 12, a feeding screw 13, a first feeding safety valve 14, a low-solid-content material storage bin 15, a stirrer 1, a conveying pump 17, a closed conveying pipe 18, a cleaning pipe 19, a cleaning pipe valve 20, a second feeding safety valve 21, a blow-off valve 22, a blow-off pipe 23, an anaerobic digestion tank 24, a stirring system 25, a biogas discharge pipe 26, a discharge pipe 27, a vacuum tank 28, a conveying pipe 29, an air compressor 30, a vacuum pump 31, an air pressure release pipe 32 and an anaerobic DCS control system terminal 33.
The discharge end of the first material receiving belt 1 is connected with the first timing feeder 9, the first material receiving belt 3 is arranged below the discharge end of the first timing feeder 9, and the discharge end of the first material receiving belt 3 is connected with the material homogenizing belt 5;
the discharging end of the second feeding belt 2 is connected with the crusher 7, the second timing feeder 8 is arranged at the discharging end of the crusher 7, the second receiving belt 4 is arranged below the discharging end of the second timing feeder 8, and the discharging end of the second receiving belt 4 is connected with the refining belt 5;
the discharging end of the material homogenizing belt 5 is connected with the material distributing belt 6, the discharging end of the material distributing belt 6 is connected with the high-solid-content material storage bin 10, the feeding end of the material receiving screw 11 is connected with the discharging end of the high-solid-content material storage bin 10, the discharging end of the material receiving screw 11 is sequentially connected with the conveying screw 12 and the feeding screw 13, the discharging end of the feeding screw 13 is connected with the inlet of the anaerobic digestion tank 24 through a pipeline, a first feeding safety valve 14 is arranged at the inlet of the anaerobic digestion tank 24, a stirring system 25 is arranged in the anaerobic digestion tank 24, a methane discharge port is formed in the anaerobic digestion tank 24, and the methane discharge port is connected with a methane discharge pipeline 26 and is provided with a valve on the methane discharge pipeline 26;
the low-solid-content material storage bin 15 is internally provided with a stirrer 16, the low-solid-content material storage bin 15 is connected with an anaerobic digestion tank 24 through a closed conveying pipe 18, a conveying pump 17 is arranged on the closed conveying pipe 18, a water inlet and a sewage outlet are formed in the closed conveying pipe 18, a cleaning pipe 19 is connected to the water inlet, a cleaning pipe valve 20 is arranged on the cleaning pipe 19, a sewage outlet 23 is connected to the sewage outlet, and a sewage valve 22 is arranged on the sewage outlet 23;
the outlet of the anaerobic digestion tank 24 is connected with a vacuum tank 28 through a discharge pipe 27, the vacuum tank 28 is respectively connected with an air compressor 30 and a vacuum pump 31 through pipelines, and valves are respectively arranged on the pipelines of the vacuum tank 28, the air compressor 30 and the vacuum pump 31; the vacuum tank 28 is connected with a dehydration workshop through a conveying pipe 29, a pressure relief opening is formed in the vacuum tank 28, the pressure relief opening is connected with an air pressure relief pipe 32, and valves are arranged on the conveying pipe 29 and the air pressure relief pipe 32.
The anaerobic DCS control terminal system 33 controls the actions of all the components.
The invention relates to a treatment method of a multi-material combined fermentation dry anaerobic digestion complete device, which comprises the following steps:
1. after being purified by a front-end pretreatment workshop, kitchen garbage is screened out to be suitable perishable garbage, and the kitchen garbage is conveyed to a first timing feeder 9 through a first feeding belt 1; the first timing feeder 9 is set according to a program, and the perishable garbage is conveyed and discharged to the first receiving belt 3 in a timing and quantitative mode; and then to the lower end of the refining belt 5.
2. Other garbage (garden garbage, straw and the like) which is jointly treated is manually or mechanically fed to the second feeding belt 2; then delivering blanking to a receiving hopper of a crusher 7, crushing to a proper particle size by the crusher, and then dropping to a second timing feeder 8; the second timing feeder 8 can be set according to a program, and other garbage can be conveyed and discharged to the second receiving belt 4 in a timing and quantitative mode; and then to the upper end of the refining belt 5.
The discharging function of the first timing feeder 9 and the second timing feeder 8 is to ensure that different materials are uniformly output, so that the subsequent materials are uniformly mixed.
3. The lower end of the refining belt 5 receives the perishable garbage and then conveys the perishable garbage upwards, and the upper end receives other garbage and then conveys the perishable garbage to the distribution belt 6.
The refining belt 5 has the function of spreading the perishable garbage and other garbage on the belt in two layers, so as to achieve the mixing purpose and facilitate the subsequent material treatment.
4. The mixed materials are conveyed and blanked into a high-solid-content material storage bin 10 through a material distribution belt 6.
The high-solid-content material storage bin 10 has the functions of temporarily storing and pre-fermenting materials, and guaranteeing stable and safe material supply.
5. The high-solid-content mixed material enters an anaerobic digestion tank 24 through a receiving screw 11, a conveying screw 12 and a feeding screw 13 for anaerobic digestion treatment.
The spiral conveying function is uniform conveying, so that uniform material conveying and uniform tank feeding of materials can be ensured, and the stability and safety of digestion environment in the anaerobic digestion tank 24 are improved.
The function of said feed screw 13:
(1) The high-level feeding screw is provided with a feeding port which is arranged at the middle upper part of the anaerobic tank body and at the lower end of the liquid level of anaerobic sludge in the tank, so that the feeding screw has small material feeding resistance and lower feeding screw thrust or energy consumption.
(2) The reverse extrusion force of the material in the tank is smaller at the feeding spiral outlet, the material in the tank is prevented from flowing back by the aid of the material plug, and the feeding spiral outlet is simple and convenient to configure and operate, stable in operation and high in safety coefficient.
(3) The feeding spiral outlet end is arranged at a higher position in the tank, so that the problem that inert impurities in the materials are easy to deposit at the bottom and cause stirring difficulty caused by the fact that the materials directly fall at the bottom in the tank is avoided.
(4) The feeding spiral outlet end is arranged below the liquid level surface of the material in the tank, so that methane in the tank is prevented from leaking.
6. A first feed safety valve 14 is arranged at the connection of the feed screw 13 and the anaerobic digestion tank 24.
The first feeding safety valve 14 is used for closing when spiral overhaul or feeding faults need to be shut down and cleaned, so that the material in the tank is prevented from flowing back.
7. The slurry material (such as feces, sludge, etc.) is directly discharged to the low solid material storage bin 15 through the discharge platform 34. The agitator 16 is then started for mixing.
The stirrer 16 is used for scattering and uniformly beating the agglomerated and blocky materials in the pasty materials, so that the uniformity and the flowability of the materials are improved.
8. The transfer pump 17 is started to transfer the pasty material into the anaerobic digestion tank 24 via the closed transfer line 18 for disposal.
The front end and the rear end of the closed conveying pipeline 18 are respectively provided with a cleaning pipe 19, a cleaning pipeline valve 20, a blow-off pipe 23, a blow-off valve 22 and a second feeding safety valve 21 which are connected with tap water, when the slurry material is interrupted for more than 24 hours, in order to prevent the hardening and the blocking of the deposited material in the closed conveying pipeline, the cleaning pipeline valve 20 and the blow-off valve 2 are opened by immediately closing the second feeding safety valve 21, and the material in the pipeline is washed to a sewage grit chamber for disposal by accessing high-pressure tap water.
9. After various materials (perishable garbage, other garbage, pasty materials) enter the anaerobic digestion tank 24, the materials are stirred and run by the stirring system 25, and flow from one end (inlet end) to the other end (outlet end) of the digestion tank.
The stirring system 25 functions as:
(1) A plurality of stirring shafts (the number of which can be flexibly configured according to the project scale and is generally configured to be 5 or 7) are arranged, the stirring shafts are combined together at intervals by adopting two types of paddles (4 paddles and 2 paddles are respectively configured), and the stirring shafts are driven to rotate by driving motors at two ends outside the anaerobic digestion tank 24 through a middle driving shaft.
(2) The combined type stirring shafts of the two types have the effects that the stirring area is maximized, no dead angle exists, meanwhile, the condition that adjacent stirring shaft blades cannot touch during stirring operation can be ensured, and the operation safety is ensured.
The operation mode of the stirring shaft acts
(1) The anaerobic DCS control system terminal 33 can be set to run at intervals, continuously or in a jumping mode according to the programs, and the stirring requirements of different materials in different fermentation periods can be met without interference.
(2) The rotation speed and the rotation direction of different stirring shafts can be adjusted, so that the operation and the adjustment of the fermentation environment in the anaerobic fermentation tank are more convenient, for example, when the viscosity of materials is lower, the rotation can be accelerated to avoid the sedimentation of inert impurities; when the viscosity of the material is higher, the material can slowly rotate.
(3) The material and the strain in the local area in the anaerobic digestion tank 24 and various fermented products can be distributed more uniformly, so that the fermentation is more complete and the fermentation efficiency is higher;
(4) The risk of running the system caused by the deposition of inert impurities in the materials at the bottom or the floating of soft impurities at the top can be avoided;
(5) Inert impurities deposited on the middle and lower layers and the bottom in the anaerobic digestion tank 24 can move from the material inlet end to the material outlet end in an agitating mode and finally discharged from the discharge pipe, so that the risk of a system caused by depositing a large amount of inert impurities in the anaerobic digestion tank 24 is avoided.
(6) Biogas generated by fermentation in the material body in the anaerobic digestion tank 24 can be released, so that the biogas is prevented from accumulating in anaerobic sludge body;
10. after digestion in the anaerobic digestion tank 24, the various materials are discharged from the discharge plant. The unloading mode can be fully automatically operated through the anaerobic DCS control terminal system 33, and the main flow is as follows:
(1) After the air in the vacuum tank 28 is naturally exhausted, the vacuum pump 31 is started to vacuumize the vacuum tank 28.
(2) The contents of the anaerobic digester 24 are then discharged through a discharge conduit 27 into a vacuum tank 28.
(3) Finally, the material in the vacuum tank 28 is pushed by high-pressure air to be discharged from the conveying pipe 29 to a dehydration plant.
(4) Repeating the step (1), and circularly operating until the material in the anaerobic digestion tank 24 stops discharging.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, i.e., the equivalent changes and modifications to the invention as described in the claims and specification should be considered as falling within the scope of the invention.
Claims (3)
1. A multi-material combined fermentation dry anaerobic digestion complete device is characterized in that: the device comprises a first incoming material belt, a second incoming material belt, a first receiving material belt, a second receiving material belt, a refining material belt, a material distribution belt, a crusher, a first timing feeder, a second timing feeder, a high solid content material storage bin, a material receiving spiral, a conveying spiral, a feeding spiral, a first feeding safety valve, a low solid content material storage bin, a stirrer, a conveying pump, a closed conveying pipe, a cleaning pipe valve, a second feeding safety valve, a blow-down pipe, an anaerobic digestion tank, a stirring system, a biogas discharge pipe, a vacuum tank, a conveying pipe, an air compressor, a vacuum pump and an air pressure relief pipe;
the first feeding belt discharging end is connected with the first timing feeder, the first receiving belt is arranged below the first timing feeder discharging end, and the first receiving belt discharging end is connected with the refining belt;
the second feeding belt discharging end is connected with the crusher, the second timing feeder is arranged at the discharging end of the crusher, the second receiving belt is arranged below the second timing feeder discharging end, and the discharging end of the second receiving belt is connected with the refining belt;
the material mixing device is characterized in that the discharge end of the material mixing belt is connected with the material distribution belt, the discharge end of the material distribution belt is connected with the high-solid-content material storage bin, the feed end of the material receiving screw is connected with the discharge end of the high-solid-content material storage bin, the discharge end of the material receiving screw is sequentially connected with the conveying screw and the feed screw, the discharge end of the feed screw is connected with the inlet of the anaerobic digestion tank through a pipeline, a first feed safety valve is arranged at the inlet of the anaerobic digestion tank, a stirring system is arranged in the anaerobic digestion tank, a methane discharge port is formed in the anaerobic digestion tank, and the methane discharge port is connected with a methane discharge pipeline and is provided with a valve;
the low-solid-content material storage bin is internally provided with a stirrer, the low-solid-content material storage bin is connected with the anaerobic digestion tank through a closed conveying pipe, a conveying pump is arranged on the closed conveying pipe, a water inlet and a sewage outlet are formed in the closed conveying pipe, a cleaning pipe is connected to the water inlet, a cleaning pipeline valve is arranged on the cleaning pipe, a sewage pipe is connected to the sewage outlet, and a sewage valve is arranged on the sewage pipe;
the outlet of the anaerobic digestion tank is connected with a vacuum tank through a discharge pipe, the vacuum tank is respectively connected with an air compressor and a vacuum pump through pipelines, and valves are respectively arranged on the pipelines connected with the vacuum tank, the air compressor and the vacuum pump; the vacuum tank is connected with a dehydration workshop through a conveying pipe, a pressure relief opening is formed in the vacuum tank and is connected with an air pressure relief pipe, and valves are arranged on the conveying pipe and the air pressure relief pipe.
2. A method of treating a multi-material combined fermentation dry anaerobic digestion kit according to claim 1, wherein: the method comprises the following steps:
s1, after kitchen waste is purified by a front-end pretreatment workshop, screening out proper perishable garbage, and conveying the perishable garbage to a first timing feeder through a first feeding belt; the first timing feeder is set according to a program, and the perishable garbage is conveyed and discharged to the first receiving belt in a timing and quantitative mode; then the mixture is conveyed to the lower end of the refining belt;
s2, feeding other garbage treated in a combined way to a second feeding belt manually or mechanically; then delivering blanking to a receiving hopper of a crusher, crushing to a proper particle size by the crusher, and then dropping to a second timing feeder; the second timing feeder can be set according to a program, and other garbage is conveyed and discharged to the second receiving belt in a timing and quantitative mode; then the mixture is conveyed to the upper end of the refining belt;
s3, the lower end of the refining belt receives the perishable garbage and then conveys the perishable garbage upwards, and the upper end of the refining belt receives other garbage and then conveys the perishable garbage to the distribution belt;
s4, conveying and blanking the mixed materials to a high-solid-content material storage bin through a material distribution belt;
s5, enabling the high-solid-content mixed material to enter an anaerobic digestion tank through a material receiving screw, a conveying screw and a feeding screw for anaerobic digestion treatment;
s6, a first feeding safety valve is arranged at the joint of the feeding screw and the anaerobic digestion tank;
s7, directly unloading the pasty materials to a low-solid-content material storage bin, and then starting a stirrer to mix;
s8, starting a conveying pump to enable the pasty material to enter an anaerobic digestion tank through a closed conveying pipeline for treatment;
the front end and the rear end of the closed conveying pipeline are respectively provided with a cleaning pipe, a cleaning pipeline valve, a blow-off pipe, a blow-off valve and a second feeding safety valve which are connected with tap water, when the slurry material is interrupted for more than an hour, the cleaning pipeline valve and the blow-off valve are opened by immediately closing the second feeding safety valve in order to prevent the deposited material in the closed conveying pipeline from hardening and blocking the pipeline, and the high-pressure tap water is connected to flush the material in the pipeline to a sewage grit chamber for disposal;
s9, after various materials enter the anaerobic digestion tank, stirring and running through a stirring system, and flowing from the inlet end to the outlet end of the digestion tank;
s10, after various materials are digested by the anaerobic digestion tank, unloading is carried out from an unloading workshop.
3. The method for processing the multi-material combined fermentation dry anaerobic digestion complete equipment according to claim 2, wherein the method comprises the following steps of: in the step S10, the unloading mode from the unloading workshop can be fully automatically operated through an anaerobic DCS control terminal system, and the main flow is as follows:
(1) Firstly, naturally evacuating air in a vacuum tank, and then starting a vacuum pump to vacuumize the vacuum tank;
(2) Then discharging the materials in the anaerobic digestion tank into a vacuum tank through a discharge pipe;
(3) Finally, pushing the materials in the vacuum tank to be discharged from the conveying pipe to a dehydration workshop through high-pressure air;
(4) Repeating the step (1), and circularly operating until the material in the anaerobic digestion tank stops discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172492.7A CN109136074B (en) | 2018-10-09 | 2018-10-09 | Multi-material combined fermentation dry anaerobic digestion complete device and treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172492.7A CN109136074B (en) | 2018-10-09 | 2018-10-09 | Multi-material combined fermentation dry anaerobic digestion complete device and treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109136074A CN109136074A (en) | 2019-01-04 |
| CN109136074B true CN109136074B (en) | 2023-12-26 |
Family
ID=64811082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811172492.7A Active CN109136074B (en) | 2018-10-09 | 2018-10-09 | Multi-material combined fermentation dry anaerobic digestion complete device and treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109136074B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100936540B1 (en) * | 2009-02-16 | 2010-01-13 | 이상범 | Apart-shaped anaerobic digester for producing biogas |
| CN101988076A (en) * | 2009-07-31 | 2011-03-23 | 辽宁北方环境保护有限公司 | Method for producing biogas by garbage union fermentation |
| CN102286541A (en) * | 2011-07-14 | 2011-12-21 | 中城泓天(北京)环境科技发展有限公司 | Method for preparing biogas through food waste, urban sludge and urban excrement |
| CN105884433A (en) * | 2016-05-31 | 2016-08-24 | 盐城市剑峰机械有限公司 | Automatic production line for biomass fertilizer |
| CN205687770U (en) * | 2016-06-22 | 2016-11-16 | 中国科学院城市环境研究所 | A kind of mud and the processing means of changing food waste |
| CN205868165U (en) * | 2016-07-29 | 2017-01-11 | 中国华电科工集团有限公司 | Automatic proportioning system of many first materials |
| CN206736050U (en) * | 2017-05-16 | 2017-12-12 | 北京汇园生态科技有限公司 | A kind of organic garbage treatment system |
| CN107459241A (en) * | 2016-12-20 | 2017-12-12 | 北京桑德环境工程有限公司 | Villages and small towns sludge and rubbish collaboration recycling system and method |
| CN107827490A (en) * | 2017-12-15 | 2018-03-23 | 山东五征集团有限公司 | Feces of livestock and poultry anaerobic fermentation makes organic fertilizer technique and system |
| CN209276515U (en) * | 2018-10-09 | 2019-08-20 | 厦门市联谊吉源环保工程有限公司 | More material combined ferment dry anaerobic digestion complexes |
-
2018
- 2018-10-09 CN CN201811172492.7A patent/CN109136074B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100936540B1 (en) * | 2009-02-16 | 2010-01-13 | 이상범 | Apart-shaped anaerobic digester for producing biogas |
| CN101988076A (en) * | 2009-07-31 | 2011-03-23 | 辽宁北方环境保护有限公司 | Method for producing biogas by garbage union fermentation |
| CN102286541A (en) * | 2011-07-14 | 2011-12-21 | 中城泓天(北京)环境科技发展有限公司 | Method for preparing biogas through food waste, urban sludge and urban excrement |
| CN105884433A (en) * | 2016-05-31 | 2016-08-24 | 盐城市剑峰机械有限公司 | Automatic production line for biomass fertilizer |
| CN205687770U (en) * | 2016-06-22 | 2016-11-16 | 中国科学院城市环境研究所 | A kind of mud and the processing means of changing food waste |
| CN205868165U (en) * | 2016-07-29 | 2017-01-11 | 中国华电科工集团有限公司 | Automatic proportioning system of many first materials |
| CN107459241A (en) * | 2016-12-20 | 2017-12-12 | 北京桑德环境工程有限公司 | Villages and small towns sludge and rubbish collaboration recycling system and method |
| CN206736050U (en) * | 2017-05-16 | 2017-12-12 | 北京汇园生态科技有限公司 | A kind of organic garbage treatment system |
| CN107827490A (en) * | 2017-12-15 | 2018-03-23 | 山东五征集团有限公司 | Feces of livestock and poultry anaerobic fermentation makes organic fertilizer technique and system |
| CN209276515U (en) * | 2018-10-09 | 2019-08-20 | 厦门市联谊吉源环保工程有限公司 | More material combined ferment dry anaerobic digestion complexes |
Non-Patent Citations (1)
| Title |
|---|
| 刘一威.畜禽粪便、污泥、农村垃圾中温联合厌氧消化技术研究.可再生能源.2012,第30卷(第06期),59-62. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109136074A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8100354B2 (en) | Apparatus for processing utility waste with biodegradable organic material content | |
| CN101381675B (en) | Horizontal organic waste dry-type anaerobic digestion processing equipment with agitator and processing method | |
| JPS60118293A (en) | Two-step anaerobic fermentation method and device for underwater solid waste | |
| US20210079429A1 (en) | Multiple tank high solids anaerobic digester | |
| CN101037284A (en) | Dejecta treatment method and system | |
| KR101997420B1 (en) | Manufacturing system of the organic fertilizer | |
| CN215223786U (en) | Pig raising excrement recycling system | |
| CN110842004A (en) | Device and method for treating organic solid waste by using hermetia illucens | |
| CN210855870U (en) | Chicken farm excrement and urine processing lines | |
| CN109136074B (en) | Multi-material combined fermentation dry anaerobic digestion complete device and treatment method | |
| CN209276515U (en) | More material combined ferment dry anaerobic digestion complexes | |
| CN205874244U (en) | Organic rubbish subtracts quantization equipment | |
| CN111170585A (en) | Fermentation system and fermentation method for livestock and poultry manure recycling treatment engineering | |
| CN103015383A (en) | Water eutrophication control-based floating plant acquiring and processing system | |
| WO2014087024A1 (en) | Substrate decomposition for biogas plants in a mixing and combi-hydrolysis tank | |
| CN210048633U (en) | Energy-saving and environment-friendly fecal sewage treatment device | |
| CN112876015B (en) | Livestock and poultry breeding manure desanding method | |
| KR101561110B1 (en) | Continuous mixing device including hoe-shaped paddle with the transfer and mixing capabilities | |
| CN104803715A (en) | Excrement-to-fertilizer production and field returning system | |
| CN214391600U (en) | Dirty degritting system of excrement is bred to beasts and birds | |
| CN213327258U (en) | Pretreatment before sheep manure anaerobic fermentation | |
| CN212334925U (en) | Livestock and poultry manure resourceful treatment engineering fermentation system | |
| CN109775949A (en) | A kind of process preparing biogas with waste | |
| CN211284366U (en) | Spiral feeding and discharging full-mixing dry fermentation anaerobic reactor | |
| CN217578438U (en) | Horizontal high-solid anaerobic digestion reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231116 Address after: Room 303, Building 4, Taiziwan Business Building, No. 89 Shanghai Road, Wuwan Community, Merchants Street, Nanshan District, Shenzhen City, Guangdong Province, 518067 Applicant after: Shenzhen Shuangwo Ecological Environment Technology Co.,Ltd. Address before: 361000 in Houkeng environmental sanitation Park, Jinshan Road, Huli District, Xiamen City, Fujian Province, southwest of Huzi Applicant before: XIAMEN LIANYI JIYUAN ENVIRONMENTAL PROTECTION ENGINEERING CO.,LTD. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |