CN203030621U - Sorting and slurrying pre-processing system for kitchen waste - Google Patents
Sorting and slurrying pre-processing system for kitchen waste Download PDFInfo
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- CN203030621U CN203030621U CN 201320017905 CN201320017905U CN203030621U CN 203030621 U CN203030621 U CN 203030621U CN 201320017905 CN201320017905 CN 201320017905 CN 201320017905 U CN201320017905 U CN 201320017905U CN 203030621 U CN203030621 U CN 203030621U
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Abstract
The utility model discloses a sorting and slurrying pre-processing system for kitchen waste. The system comprises a receiving bucket, a platy conveyor, a bag breaking machine, a chain scraper conveyor, a magnetic separator, a vibrating screening machine, a crushing winnower, a slurry storage pond, a cooking sterilizing tank, a three-phase separator, an organic slurry pond, a hydrolytic acidification tank and an anaerobic tank. By virtue of the pre-processing system, inorganic impurities in the kitchen waste can be maximally sorted out, grease can be removed, and thus resources can be maximally recycled; and meanwhile, the kitchen waste is crushed into organic slurry with stable properties and less impurity content for a subsequent anaerobic system, and thus the stable operation of the whole process system is guaranteed.
Description
Technical field
The utility model relates to a kind of changing food waste treatment technology, relates in particular to a kind of changing food waste sorting slurrying pretreatment system.
Background technology
Different according to the source, changing food waste mainly is divided into food garbage and rubbish from cooking.The leftovers of catering trades such as the former produces from the restaurant, hotel, dining room have big, many, the widespread characteristics of originating of generation; The latter mainly refers to leftover bits and pieces discarded in the daily cooking of resident, residue in the general reference family life diet, mainly contain: perishable organic wastes such as the fruits and vegetables that abandon and garbage material, leftovers leftovers, melon and fruit, expired food also have pericarp, eggshell, tea grounds, bone, shell etc.Along with the implementation of China's refuse classification work, the treatment facility of special disposal changing food waste is more and more.Because the changing food waste moisture content is big, the characteristics that organic matter content is high are particularly suitable for biological treatment, so biological treatment has accounted for the overwhelming majority in the domestic and international changing food waste treatment process.Biological treatment mainly comprises aerobic fermentation and anaerobic digestion.
Anaerobic digestion process can be realized the minimizing, innoxious of changing food waste, and the methane of Chan Shenging is a kind of clean fuel in addition, and with regard to its greenhouse effects, the potential value (GWP) that heats of methane is 21 times of carbon dioxide, so this technological development is very fast.Since 20 the end of the century technical staff be transplanted to changing food waste and handle up originally being used for anaerobic digestion techniques in the sewage treatment area, through continuous effort, nowadays utilize anaerobic fermentation to handle changing food waste and produce biogas comparative maturity technically.The principle of this technology be organic matter in the changing food waste under the effect of anaerobic bacteria, under suitable temperature conditions, degraded produces biogas by fermentation.The natural pond slag of degraded back generation uses as organic fertilizer after treatment simultaneously, and natural pond liquid uses as liquid fertilizer, thereby realizes the waste reduction recycling.Contain the 55%-75%(volumetric concentration in the biogas that fermentation back produces) methane, can be used for generating, heat supplies etc. can be alleviated the situation of energy supply anxiety.At present domestic have many changing food wastes newly-built and that moving to handle project, and what great majority adopted is anaerobic digestion process.
But because the changing food waste collection process is lack of standardization, wide material sources cause changing food waste impurity content height, preceding sorting process difficulty, for the stable operation of follow-up anaerobic technique brings problems, make at present a lot of changing food waste processing projects be in to stagnate and upgrading state constantly.Preliminary treatment has become the bottleneck of restriction changing food waste anaerobic ferment process development, and is subjected to insider's extensive concern.
The utility model content
The purpose of this utility model provides a kind of economy, the slurrying of changing food waste sorting efficiently pretreatment system.
The purpose of this utility model is achieved through the following technical solutions:
Changing food waste sorting slurrying pretreatment system of the present utility model comprises receiving hopper, and described connecing in the bucket machine is provided with apron conveyor;
The top of the port of export of described platform conveyer is provided with bag-breaking machine, the below is provided with chain scraper conveyor;
The top of described chain scraper conveyor is provided with magnetic separator, the below is provided with laboratory sifter;
The outlet of described laboratory sifter connects broken winnowing machine, and the below of described broken winnowing machine is provided with the slurry storage pool;
Described slurry storage pool is provided with the slurry delivery pump, and described slurry carries delivery side of pump to be connected to the boiling sterilization jar;
The outlet of described boiling sterilization jar is connected to three-phase separator, and the below of described three-phase separator is provided with oil storage pool and organic kiln basin;
Described organic kiln basin is provided with shurry pump, and described slip delivery side of pump is connected to hydrolization and acidification tank, and the outlet of described hydrolization and acidification tank is connected to anaerobic fermentation tank.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the changing food waste sorting slurrying pretreatment system that the utility model embodiment provides, owing to comprise the receiving hopper that connects successively, apron conveyor, bag-breaking machine, chain scraper conveyor, magnetic separator, laboratory sifter, broken winnowing machine, the slurry storage pool, the boiling sterilization jar, three-phase separator, organic kiln basin, hydrolization and acidification tank, anaerobic fermentation tank, can sorting out the inorganic impurity maximum constraints in the changing food waste, and removal grease, the maximum that realizes resource reclaims, also changing food waste is broken into slurry simultaneously, for follow-up anaerobic system provides a kind of stable in properties, the organic ink that impurity content is few has ensured the stable operation of whole process system.
Description of drawings
Fig. 1 is the process chart of the changing food waste sorting slurrying pretreatment system in the utility model enforcement;
Fig. 2 is the layout of equipment of the changing food waste sorting slurrying pretreatment system in the utility model enforcement.
Among the figure: 1, the fortune car is received in the meal kitchen, and 2, receiving hopper, 3, apron conveyor, 4, bag-breaking machine, 5, chain scraper conveyor, 6, magnetic separator, 7, laboratory sifter, 8, broken winnowing machine, 9, the slurry storage pool, 10, slurry delivery pump, 11, boiling sterilization jar, 12, three-phase separator, 13, hydrolization and acidification tank, 14, hydrocyclone, 15, anaerobic fermentation tank.
The specific embodiment
To be described in further detail the utility model embodiment below.
Changing food waste sorting slurrying pretreatment system of the present utility model, its preferable specific embodiment is:
Comprise receiving hopper, described connecing in the bucket machine is provided with apron conveyor;
The top of the port of export of described platform conveyer is provided with bag-breaking machine, the below is provided with chain scraper conveyor;
The top of described chain scraper conveyor is provided with magnetic separator, the below is provided with laboratory sifter;
The outlet of described laboratory sifter connects broken winnowing machine, and the below of described broken winnowing machine is provided with the slurry storage pool;
Described slurry storage pool is provided with the slurry delivery pump, and described slurry carries delivery side of pump to be connected to the boiling sterilization jar;
The outlet of described boiling sterilization jar is connected to three-phase separator, and the below of described three-phase separator is provided with oil storage pool and organic kiln basin;
Described organic kiln basin is provided with shurry pump, and described slip delivery side of pump is connected to hydrolization and acidification tank, and the outlet of described hydrolization and acidification tank is connected to anaerobic fermentation tank.
Described hydrolization and acidification tank is provided with hydrocyclone, and the outlet of described hydrocyclone is connected to anaerobic fermentation tank.
The connecting line of described boiling sterilization jar and described three-phase separator is provided with pump.
Described oil storage pool is provided with the greasy dirt pump.
This system also comprises meal kitchen receipts fortune car.
The utility model is mainly used in the requirement according to anaerobic technique, with sorting out of the inorganic impurity maximum constraints in the changing food waste, and removes grease, realizes that the maximum of resource reclaims, and also needs simultaneously changing food waste is broken into slurry.For follow-up anaerobic system provides a kind of stable in properties, the organic ink that impurity content is few ensures the stable operation of whole process system.
As shown in Figure 1 and Figure 2, being applied to kitchen waste preprocessing technology mainly may further comprise the steps:
(1) at first pour in the receiving hopper 2 through the changing food waste of concentrating receipts to ship, receiving hopper 2 has certain material storage effect, and apron conveyor 3 is installed in the receiving hopper bottom, and the conveyer top is equipped with broken bag device 4 simultaneously.Then by chain mat machine 5 with mass transport to shaking-sieving equipment 7, at the end of chain mat machine 5 magnetic separator 6 is installed, remove the ironwork in the material.
(2) utilize reciprocating sieve 7 with assorted foreign matter removals of bulk such as the chopping board in the changing food waste, big bone, bottles, remove the assorted foreign matter material of bulk through screening, can realize that the unobstructed of mass transport and reduction are to the abrasion of follow-up equipment;
(3) then to the material fragmentation of screening after the removal of impurities, the cutter by broken winnowing machine 8 high speeds rotation utilizes the material fragmentation wind power sorting device with Impurity removals such as plastics simultaneously;
(4) slurries after the fragmentation are transported to thermophilic digestion jar 11 and carry out high-temperature sterilization, make the major part in the material become free water in conjunction with water in the time of sterilization, are beneficial to next step Separation of Solid and Liquid.The heating mass transport is separated back solid moisture content≤60% to solid-liquid separation system three-phase separator 12, and slurry of solids is transported to follow-up hydrolization and acidification tank 13;
(5) water-oil separating can be opened Separation of Solid and Liquid the time, to reclaim animal and plant fat wherein, isolated grease can be used as raw materials for production or the industrial chemicals (can produce lubricated wet goods) of biodiesel.Isolated water is transported to follow-up hydrolization and acidification tank 13 by pump;
(6) the abundant hydrolysis acidification of organic materials in hydrolization and acidification tank 13, this tank body cooperates with desander 14 simultaneously, and the sand class thing in the material is discharged.Mass transport after the desanding is to anaerobic fermentation tank 15.
In the above-mentioned steps 1, the tilting apron conveyor is adopted in the conveying of changing food waste, and the angle of inclination can not surpass 45 degree;
In the above-mentioned steps 2, the main object of removal is 〉=inorganic impurity such as the broken bowl of broken dish of 150mm, and beer bottle, kitchen knife and metalic tableware etc.;
In the above-mentioned steps 4, the design heating-up temperature is about 70 ℃, heat time heating time 30min～60min, solid-liquid separation system adopts three-phase separator;
In the above-mentioned steps 5, oil-water separation system adopts three-phase separator, the grease rate of recovery 〉=95% of grease piece-rate system.
In the above-mentioned steps 6, system avoids the accumulation of sand setting in the follow-up anaerobic jar 15 except sand coarse aggregate ratio 〉=90%.
This pretreating process can provide a character highly stable to anaerobic system, the organic ink that impurity content is few.Adopt this technology that the changing food waste removal of impurity is reached more than 80%, provide the material guarantee smoothly for follow-up anaerobic fermentation system.
Specific embodiment:
As shown in Figure 1 and Figure 2, changing food waste pretreatment system and technology mainly comprise:
The original changing food waste that changing food waste collecting cart 1 will be collected pours in the rubbish receiving hopper 2, and this its upper side has seal cover, and the back sealing receiving hopper in time that connects material prevents leaking of foul smell as far as possible.For guaranteeing the operation of system's continous-stable, receiving hopper 2 adopts chain and pan conveyor 5 with linking of follow-up shaking-sieving equipment 7.The shaking-sieving equipment 7 main bulk impurity such as chopping board, big bone, bottle of removing, clearance can reach 99%.Material carries out fragmentation after the removal of impurities, design has the Mechanical Crushing structure in the broken winnowing machine 8, make solid organic matters be crushed to maximum particle diameter≤12mm, average grain diameter is about 5mm, the selection by winnowing field of force of this device particular design can be removed some biochemical inert materials (plastics, little ceramics, metal etc.) simultaneously.
Because contain a large amount of animal and plant fats in the general changing food waste, the raw materials for production of production biodiesel or soap will be can be used as after this animal and plant fat proposition.So the slurry of the utility model after with fragmentation adopts damp and hot method to handle, and adopts high-temperature sterilization jar 11, this tank body is airtight high temperature heating tank, contains the stirring facility, and heating-up temperature is 70 ℃.Heat back discharging in about 1 hour.Then by three-phase separator 12 extractions grease wherein.Propose grease and can be used as a kind of industrial chemicals direct marketing.Material after the oil removing enters in the hydrolization and acidification tank 13.Organic materials is by sufficient hydrolysis, and macromolecule organic is decomposed into little molecule by the bacterium ectoenzyme.For example, cellulose is cellobiose and glucose by cellulose hydrolyzation, and starch is decomposed into maltose and glucose by amylase, and protein is small peptide and amino acid etc. by the protein enzyme hydrolysis.These micromolecular hydrolysates can be dissolved in water and permeate through cell membranes is utilized by methanogen.Thus, the utility model will provide a kind of good fermentation substrate for follow-up anaerobic fermentation.Hydrolization and acidification tank 13 is equipped with desanding device 14.Under the high speed centrifugation force field by desanding device, the material that the broken bone in the changing food waste, egg shell, Chinese prickly ash seed, shell etc. are difficult to ferment and decompose, and the small amounts of inorganic chiltern is removed.Can avoid the sand setting accumulation problem at follow-up anaerobic jar 15.
The material of handling through the utility model does not contain light materials such as plastics, has avoided the crust of scum layer in the anaerobic jar.Also remove the sand class material that can form sand setting, avoided to cause the sand setting accumulation problem of anaerobic system collapse.The prehydrolysis of material simultaneously can improve load and the factor of created gase of follow-up anaerobic fermentation greatly.In a word, the utility model has fully satisfied the resource of changing food waste treatment process, the requirement of innoxious, minimizing.
The material that the utility model adapts to is not limited to changing food waste, and organic wastes such as rubbish from cooking, food market rubbish all can be used.So corresponding treatment process is also within the utility model is contained.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. a changing food waste sorting slurrying pretreatment system is characterized in that, comprise receiving hopper, described connecing in the bucket machine is provided with apron conveyor;
The top of the port of export of described platform conveyer is provided with bag-breaking machine, the below is provided with chain scraper conveyor;
The top of described chain scraper conveyor is provided with magnetic separator, the below is provided with laboratory sifter;
The outlet of described laboratory sifter connects broken winnowing machine, and the below of described broken winnowing machine is provided with the slurry storage pool;
Described slurry storage pool is provided with the slurry delivery pump, and described slurry carries delivery side of pump to be connected to the boiling sterilization jar;
The outlet of described boiling sterilization jar is connected to three-phase separator, and the below of described three-phase separator is provided with oil storage pool and organic kiln basin;
Described organic kiln basin is provided with shurry pump, and described slip delivery side of pump is connected to hydrolization and acidification tank, and the outlet of described hydrolization and acidification tank is connected to anaerobic fermentation tank.
2. changing food waste sorting slurrying pretreatment system according to claim 1 is characterized in that described hydrolization and acidification tank is provided with hydrocyclone, and the outlet of described hydrocyclone is connected to anaerobic fermentation tank.
3. changing food waste sorting slurrying pretreatment system according to claim 1 is characterized in that the connecting line of described boiling sterilization jar and described three-phase separator is provided with pump.
4. changing food waste sorting slurrying pretreatment system according to claim 1 is characterized in that described oil storage pool is provided with the greasy dirt pump.
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| CN 201320017905 CN203030621U (en) | 2013-01-14 | 2013-01-14 | Sorting and slurrying pre-processing system for kitchen waste |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103624062A (en) * | 2013-11-05 | 2014-03-12 | 江苏晨洁再生资源科技有限公司 | Method for treating kitchen waste |
| CN103937667A (en) * | 2013-08-12 | 2014-07-23 | 深圳市利赛环保科技有限公司 | Differential-pressure type feeding/discharging method and device for liquid two-phase type anaerobic fermentation |
| CN103962364A (en) * | 2014-05-04 | 2014-08-06 | 青岛科柏利高性能聚合物有限公司 | Kitchen waste screening technology |
| CN104259179A (en) * | 2014-09-12 | 2015-01-07 | 海宁市绿洲环保能源有限公司 | Kitchen waste treatment process |
| CN104415966A (en) * | 2013-08-19 | 2015-03-18 | 北京天湖环保设备有限公司 | Kitchen garbage treatment system and kitchen garbage treatment method |
| CN105057324A (en) * | 2015-07-16 | 2015-11-18 | 汪大伟 | Garbage treatment and reuse device |
| CN105436196A (en) * | 2015-12-29 | 2016-03-30 | 重庆市环卫控股（集团）有限公司 | Kitchen garbage all-material oil removing system and oil removing method |
| CN105925361A (en) * | 2016-04-13 | 2016-09-07 | 江苏维尔利环保科技股份有限公司 | Pretreatment method of anaerobic digestion treatment of kitchen garbage |
| CN106077022A (en) * | 2016-06-14 | 2016-11-09 | 深圳市朗坤环保股份有限公司 | Kitchen is remaining, market of farm produce garbage as resource processing system and technological process thereof |
| 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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| CN110479461A (en) * | 2019-08-19 | 2019-11-22 | 深圳市泽源能源股份有限公司 | A kind of processing unit of recovery energy rubbish from cooking |
| CN110589314A (en) * | 2019-09-20 | 2019-12-20 | 浙江青草地环境科技有限公司 | Community kitchen waste on-site treatment system |
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| CN103937667A (en) * | 2013-08-12 | 2014-07-23 | 深圳市利赛环保科技有限公司 | Differential-pressure type feeding/discharging method and device for liquid two-phase type anaerobic fermentation |
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| CN103624062A (en) * | 2013-11-05 | 2014-03-12 | 江苏晨洁再生资源科技有限公司 | Method for treating kitchen waste |
| CN103962364A (en) * | 2014-05-04 | 2014-08-06 | 青岛科柏利高性能聚合物有限公司 | Kitchen waste screening technology |
| CN103962364B (en) * | 2014-05-04 | 2016-03-09 | 青岛中科海水处理有限公司 | A kind of changing food waste sub-sieve technique |
| CN104259179A (en) * | 2014-09-12 | 2015-01-07 | 海宁市绿洲环保能源有限公司 | Kitchen waste treatment process |
| CN105057324A (en) * | 2015-07-16 | 2015-11-18 | 汪大伟 | Garbage treatment and reuse device |
| CN105436196A (en) * | 2015-12-29 | 2016-03-30 | 重庆市环卫控股（集团）有限公司 | Kitchen garbage all-material oil removing system and oil removing method |
| CN105925361A (en) * | 2016-04-13 | 2016-09-07 | 江苏维尔利环保科技股份有限公司 | Pretreatment method of anaerobic digestion treatment of kitchen garbage |
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| CN112496012A (en) * | 2020-12-18 | 2021-03-16 | 深圳市利赛环保科技有限公司 | Anaerobic digestion treatment method and device for kitchen garbage |
| CN112658019A (en) * | 2021-01-22 | 2021-04-16 | 浙江师范大学 | Pretreatment method of kitchen waste |
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| CN113441531A (en) * | 2021-07-26 | 2021-09-28 | 中国环境保护集团有限公司 | Kitchen waste pretreatment system and method |
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| CN113714260A (en) * | 2021-09-06 | 2021-11-30 | 华东理工大学 | Kitchen waste sand and oil removing pretreatment method and device |
| CN114606093A (en) * | 2022-04-07 | 2022-06-10 | 九江礼涞生物科技有限公司 | Kitchen waste high-temperature anaerobic fermentation device |
| CN114798671A (en) * | 2022-04-28 | 2022-07-29 | 珠海中车装备工程有限公司 | Energy treatment method for mixed kitchen garbage |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20130703 Termination date: 20190114 |