CN209222860U - A kind of kitchen garbage processing system - Google Patents
A kind of kitchen garbage processing system Download PDFInfo
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- CN209222860U CN209222860U CN201822002836.1U CN201822002836U CN209222860U CN 209222860 U CN209222860 U CN 209222860U CN 201822002836 U CN201822002836 U CN 201822002836U CN 209222860 U CN209222860 U CN 209222860U
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
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Abstract
The utility model discloses a kind of kitchen garbage processing systems, including mobile storage tank, mobile storage tank lower part is equipped with blow tank, the material feeding trench bottom is successively arranged feed bin double helix machine, feed bin single-screw machine, the feed bin single-screw machine outlet connection material sorter, Material Sorting machine are separately connected screw conveyor and broken pulper;Screw conveyor outlet connection screw extruder;The broken pulper is sequentially connected slurry homogeneous slot, storing souring tank, whirling sand-removing system, accurate adjustment pond, anaerobic digestor.This technology utility model system is by rubbish from cooking sludge merging treatment, it is insufficient that sludge organic matter can be made up, the ratio of carbon and nitrogen can be utilized by adjusting microorganism, promote anaerobic fermentation efficiency and factor of created gase, gas benefit is produced to be promoted, anaerobic digestion cost is reduced, the economic benefit of anaerobic digestion is improved, becomes a kind of important effective means of high efficient energy sources recycling.
Description
Technical field
The utility model relates to a kind of kitchen garbage processing systems.
Background technique
Rubbish from cooking includes the diet residue in restaurant, restaurant etc., also include in family daily life the fruits and vegetables that abandon and
The biodegradable organic wastes such as garbage material, leftovers leftovers have the characteristics that content of organics is abundant, moisture content is high, perishable.
According to statistics, the annual yield of Chinese city is not less than 6 × 107The rubbish from cooking of t, contained protein is equivalent to annual 1.6 ×
106hm2The protein output (being calculated by dry matter content) of soybean.Therefore, rubbish from cooking has the dual spy of waste and resource
Property, seek recycling treatment process be develop a circular economy, realize human and environment sustainable development basic guarantee and strategy think
Road.However, carrying out pretreatment to rubbish from cooking is one critically important in order to meet the production requirement of following resource treatment process
Processing step, directly influence the effect that following resource utilizes.Effect of Pretreatment mainly will be needed for subsequent core processing
The effective component wanted is separated.At present common preconditioning technique mainly have roller screening, manually with unartificial sorting, broken
Deng.
Utility model content
It realizes that 200 tons of rubbishes from cooking merge Anaerobic Digestion system with 500 tons of sludge, is first rubbish from cooking of Daliang City
Resource utilization Demonstration Base becomes national rubbish from cooking harmless treatment experimental city application example model.
The utility model provides a kind of kitchen garbage processing system: the mobile storage tank including having elevator, mobile storage tank
Lower part is equipped with blow tank, and the material feeding trench bottom is successively arranged feed bin double helix machine, feed bin single-screw machine, the feed bin single-screw
Machine outlet connection material sorter, Material Sorting machine separate impurity, food waste solid, are separately connected screw conveyor and broken slurrying
Machine;
The Material Sorting machine usually by driving device (including decelerating motor, crank link mechanism), rack, blow tank,
Sort the composition such as rake teeth, grille strip, dirt-excluding bucket.Rubbish from cooking is entered in garbage sorting machine blow tank by Shaftless screw conveyor
By sorting the swing of rake teeth out material is spread to and releases and pass through to slag notch grille strip separation afterwards, organic matter is made to fall on bottom
Discharge bucket, then fall into crusher entrance, carry out the processing of next step;And grid slag constantly pushing and inclining by rake teeth
Angle and gravity fall into lower section deslagging screw conveyor, to carry out the processing of next step.The impurity isolated include chopsticks,
Bone class, shell, metal, glass, ceramic-like (bowl, spoon), stationery, fabric etc..The pipeline of liquid is separated in the screw extruder
Connect slurry homogeneous slot;Remaining impurity is delivered to collected outside bucket.
The broken pulper is sequentially connected slurry homogeneous slot, storing souring tank, whirling sand-removing system, accurate adjustment pond, anaerobism
Digester.
Further, in the above-mentioned technical solutions, screw conveyor outlet connection screw extruder;Obtained impurity conveying
To external barrel.
Further, in the above-mentioned technical solutions, feed bin single-screw machine, screw conveyor, spiral is collected by pipeline to squeeze
Sewage is to sewage collecting tank in press.
The method that above system handles rubbish from cooking, in accurate adjustment pond rubbish from cooking and sludge mixed proportion less than 50%, and
Do not occur lamination, tracking and measuring system pH stable maintain 6.0~8.0 in the range of, mixed material passes through screw rod
Pump is delivered in anaerobic digestor body, and reaction temperature is 35 ± 2 DEG C, and the residence time is 18~24 days, mixed material moisture content
85%~92%, mixed material organic matter degradation rate can reach 60% or more (sludge is 40% or more), and system is organic negative at this time
Lotus highest can achieve 3.0~4.0kg/m3/ day.
The process that this technology handles rubbish from cooking is as follows: rubbish from cooking enters rubbish storage tank after discharging, opens blade type lock
Material in rubbish storage tank is transported to Clothoid type fly cutter crusher by material lifting conveyer and is crushed by valve, after being crushed
Kitchen garbage by dedicated expression separation equipment carry out squeeze pulp subdivision, synchronously complete organic matter and impurity separation and
The pulp of organic matter, treated, and slurries enter slurries storage tank, slaking apparatus are combined into sludge, after impurity then squeezes desiccation
(moisture content < 70%) enters material residue tank car, is discharged into landfill factory or installation for rubbish processing to be harmless as rejected material.It can be real
The resource utilization of existing rubbish from cooking and sludge, separation degree is thinner, and device facility occupied area is small and compact, separates rear slurry
Solid content is high, > 15%, requires matching high with subsequent anaerobic digestion technique, the degree of automation is advanced, and process flow is simply easy
Manipulation.
Specific process flow is as shown in Figure 2.
The collaboration material of the novel research and development of technical application optimizes process system, and rubbish from cooking production potential is 80~110 cubes
Rice/ton, rubbish from cooking organic matter degradation rate be 40%~70%, slag yield be 10~30%, methane content of bilogas > 50%,
Biological fuel gas methane content >=80%.
This technology utility model utilizes Xia Jiahe sludge treatment plant existing utility, increases by 200 tons of rubbish from cooking processing, food waste
Garbage sludge merging treatment, can make up sludge organic matter deficiency, and adjustment microorganism can utilize the ratio of carbon and nitrogen, solve
The independent anaerobic digestion techniques risk problem of rubbish from cooking promotes anaerobic fermentation efficiency and factor of created gase, produces gas benefit to be promoted, drop
Low anaerobic digestion cost, improves the economic benefit of anaerobic digestion, becomes a kind of important effective means of high efficient energy sources recycling, enhancing
Rubbish from cooking anaerobic digestion methane production technology commercialization feasibility has great research significance from bioenergy is wherein obtained.
Utility model beneficial effect
Project utilizes the existing treatment facility of Dalian Xia Jiahe sludge treatment plant, 200 tons of food waste rubbish of merging treatment main city zone
Rubbish can reach following technical risk prevention effect and technological innovation advantage:
Rubbish from cooking basicity and the insufficient influence of nutritional ingredient can effectively be overcome
Simple rubbish from cooking can only substantially proceed to acidification when carrying out anaerobic digestion due to lacking enough basicity
Stage and cause digestion reaction to stop, in actual moving process, need constantly according to response situation feeding lime etc. at that time with
Digestion reaction consumed basicity in the process is supplemented, system otherwise will be will lead to and be unable to operate normally and technology trouble occurs.Together
When, since anaerobic digestion is complete biodegradation process, the nutriment for being also required to reaction medium itself is balanced, otherwise
Also it easily causes microbial nutrition bad and influences extent of metabolism and decomposition efficiency, to induce process operation potential faults.
The zoogloea of municipal sludge inherently microorganism, idiotrophic is harmonious very well, while being also capable of providing sufficient basicity dimension
Hold the progress of digestion reaction.
The influence of grease (animals and plants) can effectively be overcome
Grease is the intracorporal high ergastic substances of biology, and compare starch, protein of biochemical property will be stablized,
In traditional anaerobic digestion device, since medium solid content is low, grease is caused to be layered and can not be mixed with reaction medium
It is even, so then it cannot be guaranteed that its biological respinse is gone on smoothly;Meanwhile being influenced by traditional digestion reaction unit efficiency, if
Grease excessively can then generate high organic loading impact to digestion reaction, at the same it is unstable by reaction operating condition and treatment effeciency is low etc. because
The influence of element, substance of this kind are difficult clean by thorough degradation, and it is bad and induce process operation failure to easily lead to process effect
Hidden danger.Merge anaerobic digestion with sludge, concentration of medium is high, and lamination does not occur after the blending of one side grease ensure that material
Mixing uniformity;The reaction medium of another aspect high concentration makes the microbial flora density for participating in digesting bigger, strengthens significantly
Its reaction efficiency and the extent of reaction, can bear a greater degree of Organic loading shock, to avoid grease institute load impact
The technology trouble hidden danger caused.
Can active balance salt influence
Excessively high salt, which can react anaerobic digestion, in rubbish from cooking generates inhibiting effect, is influenced by dietary characteristic, I
The rubbish from cooking salt variation range of state is larger, easily has an adverse effect to the operation of anaerobic digestion reaction unit.And use with
Municipal sludge merging treatment mode can effectively overcome and balance the influence that salt changes in simple rubbish from cooking, to guarantee
The stable operation of anaerobic digestion.Project merges sludge using rubbish from cooking and implements anaerobic digestion harmless treatment and resource utilization
It is all kinds of present in Anaerobic Digestion can effectively to overcome the problems, such as that independent rubbish from cooking carries out, and technology is feasible.In addition,
Using existing utility merging treatment, government no longer needs to additional investment and builds a set of new system, using prior art basis, improves
It reduces investment outlay while environment.
In addition, effective sorting of impurity, rubbish from cooking material may be implemented in the system, feed bin double helix machine has crushing work
Can, it can be crushed Bulk plastic packaging bag, for there is the material of packaging bag that can be directly entered the system without dismantling and handle,
For feed bin single-screw machine for conveying material to Material Sorting machine, effective sorting of food waste material is may be implemented in Material Sorting machine, thorough
Impurity is removed at bottom, is filtered out effective rubbish from cooking material to the greatest extent and is facilitated access at subsequent anaerobic digestion system
Reason, the removal of impurity can effectively extend pipeline and pump housing service life, can improve processing effect with lifting system processing capacity
Rate indirectly increases production capacity, improves economic well-being of workers and staff;Broken pulper can be by specific gravity material screening, while broken material, can
To blow out the light impurities of plastics etc, the validity of batch ingredients is taken care of yourself;Impurity after sorter screens passes through spiral
Conveyer is to screw extruder, and liquid after extruding enters slurry homogeneous slot and mixes with rubbish from cooking effective component, remaining siccative
Impurity outlet, this process can realize that rubbish from cooking supplied materials is screened and utilized to the greatest extent, as far as possible by all active princlples
Separation and collection, including the liquid in material itself and impurity;Storing souring tank, it is possible to reduce instantaneous mass carrys out rushing for doses
It hits, the acidification rate of rubbish from cooking can be accelerated, reduce because the hydrolysis acidification of rubbish from cooking is too fast to subsequent anaerobic digestion system
Impact, shorten residence time of material, improve reaction efficiency;The subsequent connection whirling sand-removing system of storing souring tank, effectively to remove
The sand grains impurity in food waste material is removed, has shellfish due to common in the diet of Dalian Area, gravel content is big in rubbish from cooking, acid
Change the material in tank by hydrolysis, acidification, material pH value declines, and material fluidity increases, subsequent increase Swirling flow sand-removing, Ke Yiyou
Effect realizes the separation of sand material, improves materials quality, protects equipment and pump line system.The pretreatment system of a whole set of rubbish from cooking can basis
Material status and inventory carry out processing speed adjustment, thus it is possible to vary running frequency realizes flexible and efficient processing.
Detailed description of the invention
Fig. 1 is Tthe utility model system structural schematic diagram;
Fig. 2 is Tthe utility model system process flow diagram;
In figure, 1 elevator, 2 mobile storage tanks, 3 blow tanks, 41, feed bin double helix machine, 42 feed bin single-screw machines, 5 materials point
Pick machine, 6 broken pulpers, 7 screw conveyors, 8 screw extruders, 9 sewage collecting tanks, 10 storing souring tanks, 11 slurry homogeneous
Slot, 12 whirling sand-removing systems, 13 anaerobic digestors, 14 accurate adjustment ponds.
Specific embodiment
Following nonlimiting examples can make those skilled in the art that the utility model be more fully understood, but
The utility model is not limited in any way.
Embodiment 1
A kind of kitchen garbage processing system: the mobile storage tank 2 including having elevator 1, mobile 2 lower part of storage tank are equipped with material feeding
Slot 3,3 bottom of blow tank are successively arranged feed bin double helix machine 41, feed bin single-screw machine 42, and the feed bin single-screw machine 42 goes out
Mouth connection material sorter 5, Material Sorting machine 5 separate impurity, food waste solid, are separately connected screw conveyor 7 and broken slurrying
Machine 6;The broken pulper 6 be sequentially connected slurry homogeneous slot 11, storing souring tank 10, whirling sand-removing system 12, accurate adjustment pond 14,
Anaerobic digestor 13;The outlet of screw conveyor 7 connection screw extruder 8;The piping connection slurry of liquid is separated in screw extruder 8
Expect homogeneous slot 11;Obtained impurity is delivered to external barrel.Single-screw machine 4, screw conveyor 7, screw extrusion are collected by pipeline
Sewage is to sewage collecting tank 9 in machine 8.
Using the method for system processing rubbish from cooking, in accurate adjustment pond rubbish from cooking and sludge mixed proportion less than 50%,
And do not occur lamination, tracking and measuring system pH stable maintain 7.5 in the range of, mixed material by screw pump it is defeated
It send to anaerobic digestor body, reaction temperature is 35 ± 2 DEG C, and the residence time is 20 days, mixed material moisture content 88%, mixing
Material organic matter degradation rate can reach 50% or more (sludge is 40% or more), and system organic loading highest can achieve at this time
3.2kg/m3/ day obtains biogas, biogas slurry, biogas residue.
Biogas residue after deep dehydration can be used as the raw material of production haydite and cement, at the same time as the base of vegetables and fruit tree
Fertilizer is applied in agricultural production.The biogas residue that moisture content is minimized reduces transportation cost during transportation, while making
Other finished products can increase certain economic benefit.
Claims (3)
1. a kind of kitchen garbage processing system, it is characterised in that: including mobile storage tank, mobile storage tank lower part is equipped with blow tank, institute
It states material feeding trench bottom and is successively arranged feed bin double helix machine, feed bin single-screw machine, the feed bin single-screw machine outlet connection material point
Machine is picked, Material Sorting machine is separately connected screw conveyor and broken pulper;Screw conveyor outlet connection screw extruder;Institute
State the piping connection slurry homogeneous slot that liquid is separated in screw extruder;
The broken pulper is sequentially connected slurry homogeneous slot, storing souring tank, whirling sand-removing system, accurate adjustment pond, anaerobic digestion
Tank.
2. kitchen garbage processing system according to claim 1, it is characterised in that: the mobile storage tank connects elevator.
3. kitchen garbage processing system according to claim 1, it is characterised in that: by pipeline collect feed bin single-screw machine,
Sewage is to sewage collecting tank in screw conveyor, screw extruder.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109332366A (en) * | 2018-11-30 | 2019-02-15 | 大连东泰有机废物处理有限公司 | A kind of kitchen garbage processing system and method |
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2018
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109332366A (en) * | 2018-11-30 | 2019-02-15 | 大连东泰有机废物处理有限公司 | A kind of kitchen garbage processing system and method |
CN109332366B (en) * | 2018-11-30 | 2024-05-14 | 大连东泰有机废物处理有限公司 | Kitchen waste treatment system and method |
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