CN107189862A - A kind of three sections of oil extracting process of kitchen garbage - Google Patents
A kind of three sections of oil extracting process of kitchen garbage Download PDFInfo
- Publication number
- CN107189862A CN107189862A CN201710315565.2A CN201710315565A CN107189862A CN 107189862 A CN107189862 A CN 107189862A CN 201710315565 A CN201710315565 A CN 201710315565A CN 107189862 A CN107189862 A CN 107189862A
- Authority
- CN
- China
- Prior art keywords
- kitchen garbage
- oil
- solid
- solid phase
- pyrolysis
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B13/00—Recovery of fats, fatty oils or fatty acids from waste materials
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- 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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of three sections of oil extracting process of kitchen garbage, comprise the following steps：（1）Sorting：Mechanically sorting removes solid inorganic component；（2）Can oil slick extraction：The kitchen garbage after impurity will be sub-elected separation of solid and liquid is carried out by way of centrifugation, solid enters follow-up Mechanical Crushing unit, and liquid progress water-oil separating is obtained can oil slick；（3）Mechanical Crushing：The solid isolated is carried out to enter subsequent reinforced homogenate and solid phase grease extraction process after Mechanical Crushing；（4）Solid phase grease is extracted：By the solid after Mechanical Crushing, extract can oil slick liquid and a part of external adding water be sufficiently mixed after be placed in closed heating kettle, pass through heat separate out solid phase grease；（5）Dehydration and drying；（6）Pyrolysis oil preparation：The kitchen garbage of the process dehydration and drying is pyrolyzed in pyrogenation incinerator, obtained condensed gas carries out water-oil separating and obtains pyrolysis oil.The present invention solves changing food waste into resources, minimizing.
Description
Technical field
The invention belongs to kitchen garbage processing technology field, and in particular to the technique that a kind of three sections of kitchen garbage carries oil.
Background technology
Kitchen garbage refers to restaurant unit and family food garbage produced in daily business and life process, its
Complicated component, including edible oil, vegetables, pericarp, fruit stone, rice and flour, meat, bone etc., additionally include a small amount of useless meal
Tool, toothpick and napkin paper.Kitchen garbage is using organic substances such as starch, food fiber class, protein as main component, while also containing
Inorganic salts, with high grease, high salinity, high-moisture, high organic content and perishable smelly, easy acidifying, easily biological-degradable
The features such as.
Waste oil in kitchen garbage is preferable bio-oil fuel and daily-use chemical industry raw material, can be with recycling.Meal
Grease in the rubbish of kitchen it is main with can two kinds of forms of oil slick and solid phase internal grease exist.Can oil slick drop footpath it is larger, energy after standing
It is very fast to float, and solid phase internal grease is more with solid-state and rubbish solid phase binding, it is very difficult to natural separation, it need to typically pass through high-temperature heating
It could separate.Country's kitchen garbage puies forward the problem of oily prevailing technology device is in the presence of two aspects at present, and first is the presence of heavy oil
The problem of light fat, its mainly in kitchen garbage can oil slick extraction, the process unit heating-up temperature is low, only by kitchen garbage
Middle vegetable oil can oil slick remove, substantial amounts of animal tallow in kitchen garbage is not removed, carry oil economic benefit it is limited；Second
In the presence of can not by can oil slick and solid phase grease separately extract the problem of, the process unit will be complete typically by the way of heating pressurization
Material carries out boiling, extracts grease, wastes substantial amounts of heat.
At present, the kitchen garbage after degreasing is typically handled by the way of anaerobic digestion.But the kitchen rubbish after degreasing
In rubbish still contain substantial amounts of oil substances, they can constantly be accumulated inside anaerobic system, influence methanogen activity and
Anaerobic digestion of kitchen wastes process bands are carried out very important negative effect by the stability of system.In addition, oil fermentation is easily produced
Carcinogen aflatoxins one by one is given birth to, human health is endangered.
The content of the invention
The purpose of the present invention is exactly that, in order to overcome the shortcomings of that above-mentioned prior art is present, and providing a kind of is used for kitchen garbage
The technique for extracting grease, the technique can not only be extracted effectively in kitchen garbage can oil slick, moreover it is possible to extract in kitchen garbage
Animal tallow, moreover it is possible to which further pyrolysis obtains pyrolysis oil, improves the recycling of kitchen garbage processing, while maximized to meal
Kitchen rubbish has carried out minimizing.
The technical scheme is that：A kind of technique for three sections of extraction greases of kitchen garbage, it is characterised in that including
Following steps：
1. sorting：Solid inorganic component in kitchen garbage is mechanically sorted into removing；
2. can oil slick extraction：The kitchen garbage after impurity will be sub-elected, separation of solid and liquid is carried out by way of centrifugation, by solid
Separated with liquid, the solid of extraction enters follow-up Mechanical Crushing unit, and liquid progress water-oil separating is obtained can oil slick；
3. Mechanical Crushing：The solid isolated after separation of solid and liquid processing is subjected to Mechanical Crushing, enters follow-up strong after crushing
Change homogenate and solid phase grease extraction process；
4. solid phase grease is extracted：By the solid after Mechanical Crushing, extract can oil slick liquid and a part of external adding water fully mix
It is placed in after conjunction in closed heating kettle, solid phase grease is separated out by heating, by the solid phase kitchen garbage by solving heat treatment
Kitchen garbage, grease and sewage after three phase separation unit obtains degreasing；
5. dehydration and drying：Kitchen garbage after the solid phase grease is extracted first passes through mechanical system and is dehydrated, will be described de-
Kitchen garbage after water carries out desiccation by electrothermal method；
6. pyrolysis liquid processed：The kitchen garbage of the process dehydration and drying is pyrolyzed in pyrogenation incinerator, obtained condensation
Gas carries out water-oil separating and obtains pyrolysis oil, and noncondensable gas and pyrolysis residue enter to burn in incinerator provides part for pyrolysis
Thermal source.
Compared with prior art, the present invention has the advantage that and good effect：
1st, the present invention using three sections carry oil not in different ways pair can oil slick, solid phase grease and pyrolysis oil progress specific aim carry
Take, compared with the raising oil extracting rate of limits, while improving efficiency of energy utilization；
2nd, churned mechanically mode is added fully to be carried out to broken rear kitchen garbage using jet in solid phase grease extraction step
Mixing homogenate, while being fully dissolved out by the way of heating pressurization to solid phase grease, improves oil extracting rate；
3rd, liquid step processed is pyrolyzed using pyrolytic incineration all-in-one oven, can not only recycling be carried again by solid phase degreasing kitchen garbage
Oil, moreover it is possible to innoxious and minimizing is carried out to kitchen garbage to greatest extent and handled.
Brief description of the drawings
Fig. 1 is three sections of oil extracting process flow charts of kitchen garbage.
Embodiment
In order to be purged complete description to the technical scheme in the present invention, with reference to embodiment to this hair
It is bright further elucidated above.The embodiment of the present invention provides a kind of technique of three sections of extraction greases of kitchen garbage, available for from kitchen rubbish
Grease is extracted in rubbish, as shown in figure 1, specific method is：
1. the solid inorganic component in kitchen garbage is mechanically sorted out into metal, stone etc. is easily damaged disintegrating machine
Inorganic impurity；
Separation of solid and liquid is carried out 2. spiral conveyor will be entered through by the kitchen garbage sorted and be transported to horizontal centrifuge, is carried
The solid taken enters subsequent mechanical fragmentation cell, liquid carried out by way of gravity carries oil water-oil separating obtain can oil slick,
Remaining liq is delivered in solid phase grease heating kettle by pump；
3. the solid refuse obtained after separation of solid and liquid is handled is crushed into mechanical crusher, the thing after Mechanical Crushing
Material particle is not more than 10mm, and the Solid Waste conveyed by closed multiple coil after being crushed with hoisting way is delivered to solid phase
In grease heating kettle；
4. by the solid after Mechanical Crushing, extract can oil slick liquid and a part of external adding water be placed in closed heating kettle,
The solid aqueous rate for allocating material is 10% or so, and solid-phase mixture is heated using saturated vapour pressure jetting type, while coordinating heating
Agitator in kettle makes slurry and steam be sufficiently mixed uniformly, is heated to 105 DEG C -125 DEG C, heat-insulation pressure keeping 0.5h makes solid phase oil
Fat is fully separated out.After temperature of charge is down to 85 DEG C, material enters in three phase separator by way of gravity flow, isolates solid phase
Slag charge, aqueous phase and oil phase.Oil phase, which can be purified further, obtains the crude oil fat that purity is more than 95%；
5. solid phase slag charge is first passed through into mechanical system to be dehydrated, moisture content is reduced to 70% -80%, desiccation is then gone through
Device desiccation to moisture content is 30% -40%；
6. it will be promoted to by dehydration and drying to moisture content for 30% -40% kitchen garbage by normal spiral conveyer in heat
It is pyrolyzed in solution stove, it is ensured that the temperature in pyrolysis oven is 410 DEG C-460 DEG C, the solid phase residence time is 20-30min, pyrolysis
Residue is dropped in incinerator, and the pyrolysis gas in pyrolysis oven passes through the oil water mixture and non-condensing that condensing unit is condensed
Gas, noncondensable gas passes through by being carried in pipeline to incinerator with pyrolysis residue and the pyrolysis of extra fuel co-fire
Supplying heat source.
Compared with prior art, the present invention has the advantage that and good effect：
1st, the present invention using three sections carry oil not in different ways pair can oil slick, solid phase grease and pyrolysis oil progress specific aim carry
Take, compared with the raising oil extracting rate of limits, while improving efficiency of energy utilization；
2nd, churned mechanically mode is added fully to be carried out to broken rear kitchen garbage using jet in solid phase grease extraction step
Mixing homogenate, while being fully dissolved out by the way of heating pressurization to solid phase grease, improves oil extracting rate；
3rd, liquid step processed is pyrolyzed using pyrolytic incineration all-in-one oven, can not only recycling be carried again by solid phase degreasing kitchen garbage
Oil, moreover it is possible to innoxious and minimizing is carried out to kitchen garbage to greatest extent and handled.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.
Claims (7)
1. a kind of three sections of oil extracting process of kitchen garbage, it is characterised in that comprise the following steps：
1) sort：Solid inorganic component in kitchen garbage is mechanically sorted into removing；
2) can oil slick extraction：The kitchen garbage after impurity will be sub-elected, separation of solid and liquid is carried out by way of centrifugation, by solid
Separated with liquid, the solid of extraction enters follow-up Mechanical Crushing unit, and liquid progress water-oil separating is obtained can oil slick；
3) Mechanical Crushing：The solid isolated after separation of solid and liquid processing is subjected to Mechanical Crushing, enters follow-up strong after crushing
Change homogenate and solid phase grease extraction process；
4) solid phase grease is extracted：By the solid after Mechanical Crushing, extract can oil slick liquid and a part of external adding water fully mix
It is placed in after conjunction in closed heating kettle, solid phase grease is separated out by heating, by the solid phase kitchen garbage by solving heat treatment
Kitchen garbage, grease and sewage after three phase separation unit obtains degreasing；
5) dehydration and drying：Kitchen garbage after the solid phase grease is extracted first passes through mechanical system and is dehydrated, will be described de-
Kitchen garbage after water carries out desiccation by electrothermal method；
6) pyrolysis oil preparation：The kitchen garbage of the process dehydration and drying is pyrolyzed in pyrogenation incinerator, obtained condensation
Gas carries out water-oil separating and obtains pyrolysis oil, and noncondensable gas and pyrolysis residue enter to burn in incinerator provides part for pyrolysis
Thermal source.
2. three sections of oil extracting process of kitchen garbage according to claim 1, it is characterised in that described refuse classification uses machine
The mode of tool sorting, sub-elects the inorganic impurity that metal, stone etc. are easily damaged disintegrating machine.
3. three sections of oil extracting process of kitchen garbage according to claim 1, it is characterised in that in step（2）Separation of solid and liquid institute
Be horizontal centrifuge with centrifuge, by kitchen garbage can oil slick separate, water-oil separating is carried using gravity by the way of oil.
4. three sections of oil extracting process of kitchen garbage according to claim 1, it is characterised in that in step（3）Mechanical Crushing
Machine body uses double-shaft crusher, and the material after Mechanical Crushing is transported to subsequently by multiple coil conveying with hoisting way
Solid phase grease extraction element.
5. three sections of oil extracting process of kitchen garbage according to claim 1, it is characterised in that in step（4）Airtight heating kettle
The heating of middle use steam jet, and with churned mechanically mode material is homogenized and solid phase grease precipitation, be heated to
For 105 DEG C-125 DEG C, 0.5-1h of heat-insulation pressure keeping makes animal fat fully separate out, by three phase separator sub-department grease,
Water and Solid Waste.
6. three sections of oil extracting process of kitchen garbage according to claim 1, it is characterised in that in step（5）In adopt machinery pressure
The mode that filter dehydration and electric heating desiccation are used in conjunction carries out desiccation to solid phase kitchen garbage after degreasing, and this step need to only contain kitchen garbage
Water rate is down to no more than 30%.
7. three sections of oil extracting process of kitchen garbage according to claim 1, it is characterised in that in step（6）The heat of middle use
Solution burns all-in-one oven, and its pyrolysis oven is placed in incinerator, and the degreasing kitchen garbage of moisture content desiccation to 30% or so is passed through into spiral
Conveyer enters in pyrolysis oven, and obtained condensed gas carries out water-oil separating and obtains pyrolysis oil, after noncondensable gas is by dedusting
Thermal source is provided for pyrolysis into incinerator and the pyrolysis residue entered in incinerator and additional combustion gas, pyrolysis time is 30min,
Temperature is 410 DEG C -460 DEG C, now ensure that more pyrolytic behavior is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315565.2A CN107189862A (en) | 2017-05-08 | 2017-05-08 | A kind of three sections of oil extracting process of kitchen garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315565.2A CN107189862A (en) | 2017-05-08 | 2017-05-08 | A kind of three sections of oil extracting process of kitchen garbage |
Publications (1)
| Publication Number | Publication Date |
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| CN107189862A true CN107189862A (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710315565.2A Pending CN107189862A (en) | 2017-05-08 | 2017-05-08 | A kind of three sections of oil extracting process of kitchen garbage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639931A (en) * | 2019-09-23 | 2020-01-03 | 四川雷鸣环保装备有限公司 | Process for coupling kitchen waste and biomass to coproduce oil, electricity, steam and carbon |
| CN114606060A (en) * | 2022-01-26 | 2022-06-10 | 上海大学 | Method for efficiently recovering grease in kitchen waste with low energy consumption |
| CN114888038A (en) * | 2022-05-18 | 2022-08-12 | 安徽科技学院 | Kitchen waste compost deoiling and degreasing process |
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2017
- 2017-05-08 CN CN201710315565.2A patent/CN107189862A/en active Pending
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639931A (en) * | 2019-09-23 | 2020-01-03 | 四川雷鸣环保装备有限公司 | Process for coupling kitchen waste and biomass to coproduce oil, electricity, steam and carbon |
| CN114606060A (en) * | 2022-01-26 | 2022-06-10 | 上海大学 | Method for efficiently recovering grease in kitchen waste with low energy consumption |
| CN114888038A (en) * | 2022-05-18 | 2022-08-12 | 安徽科技学院 | Kitchen waste compost deoiling and degreasing process |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180116 Address after: Wuzhong District Wuzhong road in Suzhou city of Jiangsu province 215104 No. 1083 Stonelake glorious city building 75 room 503 Applicant after: Jiang Mina Address before: Mudu Wuzhong District Jin Feng Road Suzhou city Jiangsu province 215101 No. 198 Building 2 Room 301 Applicant before: Suzhou Tongde Environmental Protection Technology Co., Ltd. Applicant before: Suzhou Research Institute of Tongji University Applicant before: Shanghai Urban Pollution Control Engineering Research Center Co., Ltd. |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180511 Address after: 215101 301, room 2, 198 Jin Feng Nan Road, Mu Du Town, Wuzhong District, Suzhou, Jiangsu. Applicant after: Suzhou Tongde Environmental Protection Technology Co., Ltd. Applicant after: Suzhou Research Institute of Tongji University Applicant after: Shanghai Urban Pollution Control Engineering Research Center Co., Ltd. Address before: 215104 503 room, 75 Stone Lake Hua Town, 1083 Wuzhong Road, Wuzhong District, Suzhou, Jiangsu. Applicant before: Jiang Mina |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
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| RJ01 | Rejection of invention patent application after publication |