CN103194314B - Method for treating waste oil - Google Patents
Method for treating waste oil Download PDFInfo
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- CN103194314B CN103194314B CN201310114905.7A CN201310114905A CN103194314B CN 103194314 B CN103194314 B CN 103194314B CN 201310114905 A CN201310114905 A CN 201310114905A CN 103194314 B CN103194314 B CN 103194314B
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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
- 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
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
- 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
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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
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Abstract
The invention provides a method for treating waste oil. The method comprises the following steps of: heating a waste oil raw material to sequentially layer the waste oil raw material into a waste oil layer, an oil-water-dreg three-phase mixture layer, a waste water layer and a sand precipitate layer; collecting and separating the waste oil layer into waste oil, waste water and dreg, and performing oil-water separation to the waste oil to obtain waste oil and waste water which can be used for preparing chemical raw materials or biofuel. The method has the advantages that the waste oil raw material is subjected to concentrated closed collection and transportation by utilizing a professional refuse collector, secondary pollution to the pavement and environment can be avoided in the shipment process, and a waste edible oil finished product, and methane, biogas slurry organic fertilizer, boiler fuel and other finished products with economic values can be furthest extracted and separated regarding the ingredients of the waste oil raw material, so that the problem that waste edible oil is extracted into swill-cooked dirty oil by lawbreakers can be solved, high economic benefit can be generated, and the waste edible oil can be turned into wealth from waste.
Description
Technical field
The invention belongs to the technical field of utilizing of waste oil, be specifically related to the recovery separation of waste oil, the treatment process of recycling treatment.
Background technology
What discarded food oils referred to that food and restaurant service industry produces in production management process can not be edible again animal-plant oil, by its source, conventionally can be divided into sewer oil, swill oil and fried Cargo Oil (normal claim old oil).All the time, owing to lacking effectively supervision and reasonably utilizing, discarded food oils not only become the pollutent of environment, have more upset market order, have impacted food safety.Discarded food oils are not treated just entering in cloaca for a long time, will produce series of problems such as stopping up municipal sewage pipe network.In discarded food oils, be often mixed with the objectionable impuritiess such as a large amount of sewage, rubbish, bacterium, have through fried, cooking fried repeatedly repeatedly, contain a large amount of as the carcinogenic substance such as benzopyrene, flavacin.Some lawless persons resell to underground workshop refinement " edible oil " after stealing or purchase discarded food oils.The sale at a low price of qualified edible oil will be used as through what is called after treatment " edible oil " such as simple refinement, decolouring, deodorization, depicklings in these underground workshops, again go on people's dining table, and serious harm people's is healthy.In recent years, along with improving constantly of living standards of the people, food and restaurant service industry has obtained fast development, and the output of discarded food oils grows with each passing day, and how scientificlly and effectively discarded food oils to be disposed and to be supervised, and has become an important topic of city management.
The existing patent No. is that the Chinese invention patent that CN200610116478.6 name is called " a kind of changing food waste into resources utilizes novel method " has proposed a kind of structure, this invention relates to a kind of resource recycle and reuse method, is specifically related to a kind of changing food waste into resources and utilizes technique.Changing food waste into resources described in this invention utilizes novel method that the changing food waste of collection is drained to moisture, make its water content≤70%, and magneticly elect metal sundries, then carry out boiling sterilization drying and crushing, make more than 60% moisture vaporization, extract liquid fat, for feedstuff oil fat raw material or technical oils fat raw material; Extract after grease, continue, by dry the solids in changing food waste and pulverizing, to make feedstuff raw material; Utilize circulation to reclaim waste liquid making technical oils fat raw material and fertilizer that drop goes out; Utilize waste gas to reclaim heat energy and cultivate biological bacteria, reclaim clean water of condensation for domestic water and process water.This invention is fully recycled changing food waste, and the heat energy producing in treating processes and water of condensation also can recycles, changing food waste is turned waste into wealth, and processing cost are lower.But the method is reasonable not enough to the processing of water reuse, carry out processed and increase energy consumption, but also waste water resources, also need rubbish to pulverize simultaneously, thereby further increase processing cost, and waste gas is directly discharge and do not do further to utilize, so its treatment process should be further improved.
Summary of the invention
Technical problem to be solved by this invention be provide for above-mentioned prior art present situation a kind of can reclaim waste oil can be to waste water and slag the waste oil treatment process as energy utilization.
The present invention solves the problems of the technologies described above adopted technical scheme: waste oil treatment process of the present invention, it is characterized in that, this treatment process comprises the following steps: one, by waste oil heating raw materials, waste oil raw material is layered as from top to bottom successively because of the difference of density: waste oil layer, oil, water, slag three-phase mixture layer, waste water layer, sediment deposition thing layer; Two, described waste oil layer is separated into waste oil, waste water, slag through collecting, and described waste oil is carried out to oily water separation obtains again can be for the preparation of the waste oil of industrial chemicals or biofuel, waste water; Three, described oil, water, slag three-phase mixture layer obtain filtrate and slag through collecting to filter; A, described filtrate and wood chip are carried out to mix and blend form wood chip mixture; B, the squeezing of described wood chip mixture is obtained squeezing cake and squeezed the juice; C, will described in the heating of squeezing the juice, squeezing the juice after heating is separated into waste oil, waste water, slag, waste oil is wherein carried out to oily water separation obtains again can be for the preparation of the waste oil of industrial chemicals or biofuel, waste water; Four, by the wastewater collection processing in waste water layer described in the waste water described in described step 2 and step 3 and step 1; Five, by the slag described in described step 1 and step 2 and the slag described in step 3 and the collection and treatment of squeezing cake; Six, the sediment deposition thing layer described in step 1 is focused on, waste oil raw material is finally processed to a series of finished products with economic worth.
As improvement, be placed in casing at the raw material of waste oil described in step 1, in casing, pass into steam waste oil raw material is heated, make the layering successively from top to bottom in casing of waste oil raw material, can be as direct heating source, safely cleaning and a low cost under oxygen-free environment.
Improve again, in being collected in whizzer, be separated into waste oil, waste water, slag at the layer of waste oil described in step 2, the powerful centrifugal force that utilizes centrifuge rotor high speed rotating to produce, the settling velocity of particle in accelerating liquid, opens the separating substances of different settling ratios and buoyant density in waste oil raw material.
Improve, separate and obtain waste oil, waste water at waste oil described in step 2 in separating machine, separation automation degree is high, current consumption is little, price is low.
Improve, the concrete grammar of the wastewater collection processing in described step 4 is again: described waste water Concentrated fermentation in methane-generating pit is made to biogas and liquid organic fertilizer.
Improve, the slag in described step 5 with the concrete grammar that squeezes cake collection and treatment is again: described slag carries out burning disposal with squeezing cake as boiler oil.
Improve, described slag is used for heating waste oil raw material and the thermal source of squeezing the juice, resource circulation utilization with the thermal source that squeezes cake burning generation again.
Improve, described waste oil raw material will be collected the oil dividing from oleaginousness higher part in the unit of generation waste oil raw material, water, slag mixture by vehicle again, and then is transported to treatment plant's discharging platform recycling.
Improve again, then the unit of described generation waste oil raw material is hotel, dining room, dining room oil trap, convenient raw material carried out to unified, concentrated collection.
Compared with prior art, the invention has the advantages that: the treatment process of this waste oil is utilized the composition of waste oil raw material, isolate substantially discarded food oils finished product, and waste water can be converted to biogas with can be as the natural pond liquid of fertilizer, and the slag producing can be served as the fuel of boiler, not only solve discarded food oils raw material is refined into sewer oil problem by lawless person, and can also produce good economic benefit, discarded food oils raw material " is turned waste into wealth "; And the refuse collector of specialty concentrates closed to receive fortune to waste oil raw material, can road pavement in shipment and environment cause secondary pollution, reach the effect of optimizing the environment, therefore, treatment process environmental protection and the resource utilization of waste oil of the present invention are high, are worthy of popularization.
Brief description of the drawings
Fig. 1 is the schema of the embodiment of the present invention;
Fig. 2 is the flow diagram of Fig. 1;
Fig. 3 is the schema of the another kind of embodiment of the present invention;
Fig. 4 is the flow diagram of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figures 1 to 4, the waste oil treatment process of the present embodiment, major programme is received fortune-processing treatment-collection finished product for concentrating.
First, collect oil, water, the collection of slag mixture that work is divided the oleaginousness higher part of the waste oil unit of generation, be transported to treatment plant's discharging platform.
Secondly, the continuous heating by waste oil raw material about 8 hours, i.e. layering gradually, is divided into four layers, is respectively from top to bottom waste oil layer 11, oil, water, slag three-phase mixture layer 12, waste water layer 13, sediment deposition thing layer 14.
The waste oil of top layer joins triphase horizontal whizzer 2 through collection and carries out solid-liquid-liquid three phase separation, under the high speed rotating of triphase horizontal whizzer 2, separate and produce oil, waste water, slag, the oil that wherein separates generation joins disk centrifuge 3 again and carries out oily water separation, separate and remove after a small amount of moisture content, obtain waste oil finished product, can be used as product and carry out filling sale.This waste oil finished product can be used as industrial chemicals, also can make biofuel, and its market consumption is very extensive.Separate through triphase horizontal whizzer 2 waste water producing and separate the waste water producing with disk centrifuge 3 and all concentrate and enter methane-generating pit 4 and ferment, the biogas of fermentation generation can be used as fuel, and the natural pond liquid of generation can directly be sprayed in farmland as liquid organic fertilizer.Separate through triphase horizontal whizzer 2 slag producing and carry out burning disposal as boiler 5 fuel, the steam that boiler burning produces can be used as the heat source of heating container and heating flow container.
The second layer is oil, water, slag three-phase mixture layer, and this layer of material collected and joined in filter 7.In filter 7, under the rotating filter of filter screen, filter out filter residue and filtrate, filter residue major ingredient is the impurity such as plastics film, cloth, can be used as boiler oil and in boiler, carries out burning disposal.Filtrate in filter casing is delivered to stirrer 8 through spiral pump, enter into stirrer 8 and carry out mix and blend with wood chip, wood chip mixture is transported to squeezing machine 9 through worm conveyor and squeezes, under the squeezing action of double-helical squeezing machine 9, squeeze the juice and flow to and squeeze the juice in case through web plate hole, be delivered to heating flow container 10 through spiral pump, squeeze cake and deliver to boiler through worm conveyor, as the fuel of boiler, for generation of steam.Enter squeezing the juice of heating flow container 10 and enter triphase horizontal whizzer 2 and carry out solid-liquid-liquid three phase separation after heating, the slag of separating is delivered to boiler and is burned, and waste water enters methane-generating pit fermentation, and waste oil enters disk centrifuge 3 and carries out oily water separation.
The 3rd layer is waste water layer, and waste water layer joins methane-generating pit 4 and ferments, and finally produces biogas and liquid organic fertilizer.
The throw outs such as the 4th layer is sediment deposition thing layer, and the major ingredient of this layer is silt, collect this layer of material to focus on.
Finally, the finished product that operator's handle processes is packed, filling, sale.
In waste oil treatment process of the present invention, the final processed generation waste oil finished product of waste oil raw material, biogas, liquid organic fertilizer and boiler oil, these finished products not only can be to environment, also has good economic benefit.
The processing of natural pond liquid composting material is existing proven technique abroad, and through practical application, respond well, make natural pond liquid after treatment can meet related standard requirements, be directly sprayed in farmland as liquid organic fertilizer.
Organic fertilizer is rich in organic substance and the required nutritive substance of plant growth, can not only provide plant growth required nutrient, improvement soil, can also improve crop quality, improve crop yield, promote high crop yield stable yields, preservation of fertility, can improve utilization rate of fertilizer simultaneously, reduces production costs.Fully rationally utilize organic fertilizer can increase crop yield, culture fertility, improve quality of agricultural product, improve the validity of soil nutrient.Along with the raising of living standards of the people, the free of contamination demand organic, green food of safety of residents health constantly increases, and vast farmers improves the market competitiveness of agricultural-food in the urgent need to application of organic fertilizers.
In the biogas producing after fermentation, contain methane, carbonic acid gas, hydrogen sulfide, other gases etc.Methane gas has combustibility, and concentration can reach 60%-75% conventionally, can directly burn as fuel.
Except direct burning, the biogas producing after anaerobically fermenting can also enter town gas manufacturing enterprise after decarburization purifies, and after pressurization, enters pipe network, supplies with resident's daily life and uses.
Along with the continuous progress of technology, new-energy automobile engenders on market.European countries, as Sweden, there is utilizing the new-energy automobile of biogas as fuel in Germany etc.If can popularize filling website, biogas is also very superior new-energy automobile fuel.
Separate the waste oil finished product producing, after chemical process or biological method processing, change biofuel or other chemical engineering industry raw materials into.It is reported, now the price of waste oil finished product is in 5500 yuan of left and right per ton, and the cost that is processed into biofuel is 7000 yuan per ton, and the price of biofuel finished product on market is 8000 yuan per ton, cheap nearly 1000 yuan than fossil diesel fuel! And biofuel aromatic free and heavy metal, No. 0 diesel oil of sulfur-bearing numeric ratio is much lower, and burning can not produce pollution, and biofuel has unique recyclability in addition, inexhaustible, and application prospect is very wide.
Claims (9)
1. a treatment process for waste oil, is characterized in that, this treatment process is by following steps:
One, by waste oil heating raw materials, waste oil raw material is layered as from top to bottom successively because of the difference of density: waste oil layer (11), oil, water, slag three-phase mixture layer (12), waste water layer (13), sediment deposition thing layer (14):
Two, described waste oil layer (11) is separated into waste oil, waste water, slag through collecting, and described waste oil is carried out to oily water separation obtains again can be for the preparation of the waste oil of industrial chemicals or biofuel, waste water;
Three, described oil, water, slag three-phase mixture layer (12) obtain filtrate and slag through collecting to filter;
A, described filtrate and wood chip are carried out to mix and blend form wood chip mixture;
B, the squeezing of described wood chip mixture is obtained squeezing cake and squeezed the juice;
C, will described in the heating of squeezing the juice, squeezing the juice after heating is separated into waste oil, waste water, slag, waste oil is wherein carried out to oily water separation obtains again can be for the preparation of the waste oil of industrial chemicals or biofuel, waste water;
Four, by the wastewater collection processing in waste water layer (13) described in the waste water described in described step 2 and step 3 and step 1;
Five, by the slag described in described step 1 and step 2 and the slag described in step 3 and the collection and treatment of squeezing cake;
Six, the sediment deposition thing layer (14) described in step 1 is focused on.
2. treatment process according to claim 1, it is characterized in that: be placed in casing (1) at the raw material of waste oil described in step 1, in casing (1), pass into steam waste oil raw material is heated, make the layering successively from top to bottom in casing (1) of waste oil raw material.
3. treatment process according to claim 1, is characterized in that: in being collected in whizzer (2), be separated into waste oil, waste water, slag at the layer of waste oil described in step 2.
4. treatment process according to claim 1, is characterized in that: separate and obtain waste oil, waste water in separating machine (3) at waste oil described in step 2.
5. according to arbitrary described treatment process in claim 1 to 4, it is characterized in that: the concrete grammar of the wastewater collection processing in described step 4 is: described waste water Concentrated fermentation in methane-generating pit (4) is made to biogas and liquid organic fertilizer.
6. according to arbitrary described treatment process in claim 1 to 4, it is characterized in that: the slag in described step 5 with the concrete grammar that squeezes cake collection and treatment is: described slag carries out burning disposal with squeezing cake as boiler (5) fuel.
7. treatment process according to claim 6, is characterized in that: described slag is used for heating waste oil raw material and the thermal source of squeezing the juice with the thermal source that squeezes cake burning generation.
8. according to arbitrary described treatment process in claim 1 to 4, it is characterized in that: described waste oil raw material will be collected the oil dividing from oleaginousness higher part in the unit of generation waste oil raw material, water, slag mixture by vehicle (6).
9. treatment process according to claim 8, is characterized in that: the unit of described generation waste oil raw material is hotel, dining room, dining room oil trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310114905.7A CN103194314B (en) | 2013-03-19 | 2013-03-19 | Method for treating waste oil |
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| CN201310114905.7A CN103194314B (en) | 2013-03-19 | 2013-03-19 | Method for treating waste oil |
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| CN103194314A CN103194314A (en) | 2013-07-10 |
| CN103194314B true CN103194314B (en) | 2014-09-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602523A (en) * | 2013-11-05 | 2014-02-26 | 江苏晨洁再生资源科技有限公司 | Pre-treatment technology of waste edible oil |
| CN103977629A (en) * | 2014-03-26 | 2014-08-13 | 嘉兴学院 | Liquid-solid separation method for oil-water slag generated during refining of swill-cooked dirty oil |
| CN105886126A (en) * | 2014-11-07 | 2016-08-24 | 安徽清溪环保科技有限公司 | Waste grease innocent treatment method and equipment for implementing same |
| CN107523422B (en) * | 2017-10-16 | 2018-11-02 | 浙江大学台州研究院 | A kind of waste grease device |
| CN111715667A (en) * | 2020-06-29 | 2020-09-29 | 南京明豪环保科技有限公司 | Method and system for separating waste oil from kitchen waste |
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| CN100537063C (en) * | 2006-09-25 | 2009-09-09 | 上海餐余垃圾处理技术有限公司 | Process for utilization of kitchen refuse as resource |
| CN101058097B (en) * | 2007-05-31 | 2011-04-06 | 张虎明 | Resource using method for food and drink garbage |
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| CN102701324B (en) * | 2012-06-13 | 2013-09-18 | 长沙中联重科环卫机械有限公司 | Method and system for processing oily floaters |
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| CN102731172A (en) * | 2012-06-29 | 2012-10-17 | 浙江省长三角循环经济技术研究院 | Treatment process for kitchen waste |
| CN102744243A (en) * | 2012-07-11 | 2012-10-24 | 山东博洋环境资源有限公司 | Comprehensive resource treatment method of food waste |
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Owner name: ZHEJIANG LONGYUAN SIFANG MACHINERY EQUIPMENT MANUF Free format text: FORMER OWNER: CHEN YUANSEN Effective date: 20150713 |
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Effective date of registration: 20150713 Address after: Ganlan Dinghai 316000 Lan Road 1, Zhejiang city of Zhoushan Province Patentee after: Zhejiang Longyuan Sifang Machinery Equipment Manufacturing Co.,Ltd. Address before: Ganlan Dinghai 316000 Lan Road 1, Zhejiang city of Zhoushan Province Patentee before: Chen Yuansen |