CN108043863A - A kind of heating auxiliary recovery method of photovoltaic module - Google Patents
A kind of heating auxiliary recovery method of photovoltaic module Download PDFInfo
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- CN108043863A CN108043863A CN201711319461.5A CN201711319461A CN108043863A CN 108043863 A CN108043863 A CN 108043863A CN 201711319461 A CN201711319461 A CN 201711319461A CN 108043863 A CN108043863 A CN 108043863A
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- photovoltaic module
- particle
- recycled
- recovery method
- mixture
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000011084 recovery Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 74
- 239000002245 particle Substances 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 238000012216 screening Methods 0.000 claims abstract description 9
- 238000005538 encapsulation Methods 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 14
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 14
- 239000007787 solid Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
-
- 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
- Y02W30/60—Glass recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Photovoltaic Devices (AREA)
Abstract
A kind of heating the invention discloses photovoltaic module aids in recovery method, including step：S1, the encapsulation frame for removing the photovoltaic module；S2, break process is carried out to the photovoltaic module, obtains the particle of photovoltaic module；The particle of S3, the heating photovoltaic module, to decompose the EVA material in the particle of the photovoltaic module, obtain the mixture of material to be recycled；The mixture of S4, the screening material to be recycled, obtain each component material of the photovoltaic module, each component material are separately recovered.Photovoltaic module each component material can be thoroughly separated from each other by the heating auxiliary recovery method of the photovoltaic module, overcome the shortcomings that product purity is low in conventional recovery methods；This method is reduced the energy consumption needed for reaction and time, is saved cost recovery and improve organic efficiency by the broken heating surface area for increasing photovoltaic module；And this method also has the advantages of rate of recovery height and strong operation possibility.
Description
Technical field
The present invention relates to photovoltaic solar technical field, the heating auxiliary of especially a kind of photovoltaic module decomposes back into debit
Method.
Background technology
As the installation amount of global photovoltaic plant is continuously increased, the recycling after the photovoltaic module that service life exhausts is retired into
For major issue.Glass plate, EVA layer, solar battery sheet, EVA layer and the backsheet layer that photovoltaic module is set by lamination successively
Swaging into, wherein, each components material such as silicon, aluminium, silver, glass in glass plate, cell piece and backboard can largely pass through
Cycling and reutilization is realized in recycling.And the cohesive force of EVA (ethylene-vinyl acetate copolymer) layer is connection each layer structure of photovoltaic module
Predominant intermolecular forces, how to destroy the active force with realize the separation of photovoltaic module each component material be recycle photovoltaic module core
Heart problem.
The content of the invention
In view of this, the heating it is an object of the invention to provide a kind of photovoltaic module aids in recovery method, to solve
The certainly above problem.
In order to realize above-mentioned purpose, present invention employs following technical solutions：
A kind of heating auxiliary recovery method of photovoltaic module, including step：S1, the encapsulation for removing the photovoltaic module
Frame；S2, break process is carried out to the photovoltaic module, obtains the particle of photovoltaic module；Of S3, the heating photovoltaic module
Grain to decompose the EVA material in the particle of the photovoltaic module, obtains material blends；S4, the material to be recycled is sieved
Mixture obtains each component material of the photovoltaic module, and each component material is separately recovered.
Preferably, the granularity of the particle of the photovoltaic module is less than 10mm.
Preferably, in the step S3, the particle of the photovoltaic module is heated to 500 DEG C or more.
Preferably, in the step S3, under conditions of oxygen concentration is not less than the oxygen concentration in air, described in heating
The particle of photovoltaic module.
Preferably, in the step S4, purification processes first is carried out to each component material, then each group is separately recovered
Divide material.
Preferably, in the step S4, the mixture of the material to be recycled is sieved by electrostatic separation method.
Preferably, in the step S4, the mixture of the material to be recycled is sieved by pneumatic separating method.
Preferably, in the step S4, the mixture of the material to be recycled is sieved by vibration screening method.
Preferably, in the step S4, the mixture of the material to be recycled is sieved by liquid floatation method.
A kind of heating auxiliary recovery method of photovoltaic module provided by the invention, can be thoroughly by photovoltaic module each group
Material is divided to be separated from each other, overcomes the shortcomings that product purity is low in conventional recovery methods；This method increases photovoltaic by broken
The heating surface area of component reduces the energy consumption needed for reaction and time, saves cost recovery and improve organic efficiency；And
This method also has the advantages of rate of recovery height and strong operation possibility.
Description of the drawings
Fig. 1 is the flow diagram of the heating auxiliary recovery method of photovoltaic module provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings to the specific reality of the present invention
The mode of applying is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in attached drawing and according to
What the embodiments of the present invention of attached drawing description were merely exemplary, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid because having obscured the present invention during unnecessary details, in the accompanying drawings only
Show the structure and/or processing step closely related with scheme according to the present invention, and be omitted relation it is little other are thin
Section.
As shown in fig.1, a kind of heating auxiliary recovery method of photovoltaic module is present embodiments provided, including step
Suddenly：
S1, the encapsulation frame for removing the photovoltaic module；
Since photovoltaic module has set up aluminum packages frame and all kinds of encapsulating materials, in the step S1, it is necessary first to
Remove the encapsulation frame and encapsulating material, with isolate in the photovoltaic module by glass, EVA layer, solar battery sheet,
EVA layer and the backboard structure that lamination setting forms successively.Wherein, the mode that can be used manually removes the encapsulation frame
And encapsulating material, automatic equipment or semiautomatic equipment can also be used to remove the encapsulation frame and encapsulating material, dismantle lower institute
It states after Metal Packaging and encapsulating material, it is necessary to be recycled to it, to recycle.Using described in frame disassembly machine one kind equipment Removal
When encapsulating frame, the width of frame disassembly machine processing component need to be only adjusted.
S2, break process is carried out to the photovoltaic module, obtains the particle of photovoltaic module；
The granularity of the particle of the photovoltaic module is smaller, and heating surface area is bigger, heats the particle institute of the photovoltaic module
The time and energy that need to be consumed are smaller, therefore by sufficient break process to obtain the particle of sufficiently small photovoltaic module, energy
Enough effectively improve the efficiency of subsequent step.Specifically, in the present embodiment, the granularity of the particle of the photovoltaic module is less than
10mm。
The particle of S3, the heating photovoltaic module, to decompose the EVA material in the particle of the photovoltaic module, are treated
The mixture of salvage material；
Specifically, in the step S3, the particle of the photovoltaic module is heated to 500 DEG C or more.EVA material is 500
Thermal weight loss under degree Celsius can reach 100%, it is possible thereby to which so that the EVA material in the particle of the photovoltaic module is divided completely
Solution, due to losing the EVA material with gluing effect, the particle of the photovoltaic module can be separated further, form photovoltaic group
The mixture of material to be recycled in part.
Specifically, in the step S3, under conditions of oxygen concentration is not less than the oxygen concentration in air, described in heating
The particle of photovoltaic module.Under conditions of oxygen content abundance, the EVA material of the photovoltaic module can be completely broken down as CO2
And water, the generation of noxious products can be efficiently reduced.
The mixture of S4, the screening material to be recycled, obtain each component material of the photovoltaic module, institute are separately recovered
State each component material.
Further, in the step S4, the mixture of the material to be recycled is sieved, obtains each of the photovoltaic module
After component material, purification processes first are carried out to each component material of the photovoltaic module, then the photovoltaic module is separately recovered
Each component material.It in the present embodiment, can be directly to each component of acquisition after the mixture for completing the screening material to be recycled
Material is recycled, and in order to first obtain the component material of higher purity, it can also first pass through as described above to the photovoltaic group
The each component material of part carries out purification processes, then it is recycled respectively.
Illustratively, in the step S4, the mixture of the material to be recycled is sieved by electrostatic separation method.Electrostatic point
It is a kind of method for being sieved conductor and non-conductor substance using high-voltage electrostatic field from method, the present embodiment can utilize electrostatic point
From equipment, according to the difference of electrical conductivity between different component material, to each component material in the mixture of the material to be recycled
Material is sieved.
Illustratively, in the step S4, the mixture of the material to be recycled is sieved by pneumatic separating method.Wind-force point
It is a kind of screening for using air as separating medium, particle being made to be separated from each other by the difference of density and granularity under airflow function to select method
Method, the present embodiment can blow each component material of the photovoltaic module by devices such as hair-dryers, due to each component material it
Between density and granularity difference so that the distance blown off between different component material is different, and each component is realized with this
The screening of material.
Illustratively, in the step S4, the mixture of the material to be recycled is sieved by vibration screening method.Vibrating screen
It is a kind of by vibrating the technique that is mutually vibrated away from the solid particle for having different densities to select method, in the present embodiment, can pass through by
The mixture of the material to be recycled, which is inserted on vibrating screen, to be vibrated so that the smaller material of density passes through the sieve on vibrating screen
The material of hole and other components is separated, and the larger material residual of density is on the vibrating.
Illustratively, in the step S4, the mixture of the material to be recycled is sieved by liquid floatation method.Liquid floats
Method is selected to make using the hydrophobic property of solid its own face or hydrophobic (the close gas or oleophylic) characteristic obtained after floating agent acts on
Obtaining solid particle can assemble in liquid-gas or water-oil interface, that is to say that the solid particle can float on the surface of liquid, by
This can separate the solid particle from mixture.
In conclusion a kind of heating auxiliary recovery method of photovoltaic module provided in this embodiment, by photovoltaic
Component carries out physics and crushes, and obtains the particle of photovoltaic module, then by decomposing the EVA materials in photovoltaic module particle at high temperature
Material.Photovoltaic module each component material can be thoroughly separated from each other by the heating auxiliary recovery method, overcome conventional return
The shortcomings that product purity is low in receiving method；The object that the heating auxiliary recovery method of the photovoltaic module carries out photovoltaic module
Reason break process increases the heating surface area of photovoltaic module, should compared to directly by EVA material in heat resolve photovoltaic module
Energy consumption needed for recovery method is relatively low, saves cost recovery；And the heating auxiliary recovery of the photovoltaic module
Method also has the advantages of reaction rate is fast, the rate of recovery is high and operation possibility is strong.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, several improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (9)
1. a kind of heating auxiliary recovery method of photovoltaic module, which is characterized in that including step：
S1, the encapsulation frame for removing the photovoltaic module；
S2, break process is carried out to the photovoltaic module, obtains the particle of photovoltaic module；
The particle of S3, the heating photovoltaic module to decompose the EVA material in the particle of the photovoltaic module, obtain to be recycled
The mixture of material；
The mixture of S4, the screening material to be recycled obtain each component material of the photovoltaic module, are separately recovered described each
Component material.
2. the heating auxiliary recovery method of photovoltaic module according to claim 1, which is characterized in that the photovoltaic group
The granularity of the particle of part is less than 10mm.
3. the heating auxiliary recovery method of photovoltaic module according to claim 1, which is characterized in that the step S3
In, the particle of the photovoltaic module is heated to 500 DEG C or more.
4. the heating auxiliary recovery method of the photovoltaic module according to claim 1 or 3, which is characterized in that the step
In rapid S3, under conditions of oxygen concentration is not less than the oxygen concentration in air, the particle of the photovoltaic module is heated.
5. the heating auxiliary recovery method of photovoltaic module according to claim 1, which is characterized in that the step S4
In, purification processes first are carried out to each component material, then each component material is separately recovered.
6. the heating auxiliary recovery method of photovoltaic module according to claim 1 or 5, which is characterized in that the step
In rapid S4, the mixture of the material to be recycled is sieved by electrostatic separation method.
7. the heating auxiliary recovery method of photovoltaic module according to claim 1 or 5, which is characterized in that the step
In rapid S4, the mixture of the material to be recycled is sieved by pneumatic separating method.
8. the heating auxiliary recovery method of photovoltaic module according to claim 1 or 5, which is characterized in that the step
In rapid S4, the mixture of the material to be recycled is sieved by vibration screening method.
9. the heating auxiliary recovery method of photovoltaic module according to claim 1 or 5, which is characterized in that the step
In rapid S4, the mixture of the material to be recycled is sieved by liquid floatation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319461.5A CN108043863A (en) | 2017-12-12 | 2017-12-12 | A kind of heating auxiliary recovery method of photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319461.5A CN108043863A (en) | 2017-12-12 | 2017-12-12 | A kind of heating auxiliary recovery method of photovoltaic module |
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| CN108043863A true CN108043863A (en) | 2018-05-18 |
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| CN201711319461.5A Pending CN108043863A (en) | 2017-12-12 | 2017-12-12 | A kind of heating auxiliary recovery method of photovoltaic module |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110624936A (en) * | 2019-09-27 | 2019-12-31 | 中国科学院城市环境研究所 | Waste photovoltaic module disassembling method for realizing silicon wafer integrity recovery |
| CN110743892A (en) * | 2018-07-23 | 2020-02-04 | 荆门市格林美新材料有限公司 | Method for recycling crystalline silicon photovoltaic material |
| CN110743893A (en) * | 2018-07-23 | 2020-02-04 | 荆门市格林美新材料有限公司 | Method for recovering crystalline silicon photovoltaic material |
| CN110747349A (en) * | 2018-07-23 | 2020-02-04 | 荆门市格林美新材料有限公司 | Recycling method of waste photovoltaic material |
| CN110841786A (en) * | 2019-11-27 | 2020-02-28 | 浙江晶科能源有限公司 | Waste photovoltaic module recovery method |
| CN111076176A (en) * | 2019-12-20 | 2020-04-28 | 北京京能清洁能源电力股份有限公司北京分公司 | Pyrolysis device |
| CN111632994A (en) * | 2020-05-28 | 2020-09-08 | 西安交通大学 | Method for recycling waste solar cell panel based on high-voltage pulse underwater discharge |
| CN111790723A (en) * | 2020-06-24 | 2020-10-20 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Recovery method and device of complete glass photovoltaic module |
| CN111921669A (en) * | 2020-06-24 | 2020-11-13 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Method for recovering silicon in photovoltaic module |
| CN111957723A (en) * | 2020-09-07 | 2020-11-20 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Method and device for recycling broken glass photovoltaic module |
| CN115254901A (en) * | 2022-07-27 | 2022-11-01 | 西安热工研究院有限公司 | Photovoltaic module recovery system and method combined with thermal power plant |
| US20230116994A1 (en) * | 2020-01-24 | 2023-04-20 | Dowa Eco System Co., Ltd. | Metal recovery method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110743892A (en) * | 2018-07-23 | 2020-02-04 | 荆门市格林美新材料有限公司 | Method for recycling crystalline silicon photovoltaic material |
| CN110743893A (en) * | 2018-07-23 | 2020-02-04 | 荆门市格林美新材料有限公司 | Method for recovering crystalline silicon photovoltaic material |
| CN110747349A (en) * | 2018-07-23 | 2020-02-04 | 荆门市格林美新材料有限公司 | Recycling method of waste photovoltaic material |
| CN110624936A (en) * | 2019-09-27 | 2019-12-31 | 中国科学院城市环境研究所 | Waste photovoltaic module disassembling method for realizing silicon wafer integrity recovery |
| CN110841786A (en) * | 2019-11-27 | 2020-02-28 | 浙江晶科能源有限公司 | Waste photovoltaic module recovery method |
| CN111076176B (en) * | 2019-12-20 | 2022-08-09 | 北京京能清洁能源电力股份有限公司北京分公司 | Pyrolysis device |
| CN111076176A (en) * | 2019-12-20 | 2020-04-28 | 北京京能清洁能源电力股份有限公司北京分公司 | Pyrolysis device |
| US20230116994A1 (en) * | 2020-01-24 | 2023-04-20 | Dowa Eco System Co., Ltd. | Metal recovery method |
| CN111632994A (en) * | 2020-05-28 | 2020-09-08 | 西安交通大学 | Method for recycling waste solar cell panel based on high-voltage pulse underwater discharge |
| CN111921669A (en) * | 2020-06-24 | 2020-11-13 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Method for recovering silicon in photovoltaic module |
| CN111790723A (en) * | 2020-06-24 | 2020-10-20 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Recovery method and device of complete glass photovoltaic module |
| CN111790723B (en) * | 2020-06-24 | 2024-05-10 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Recovery method and device for complete glass photovoltaic module |
| CN111957723A (en) * | 2020-09-07 | 2020-11-20 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Method and device for recycling broken glass photovoltaic module |
| CN111957723B (en) * | 2020-09-07 | 2023-11-21 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Recovery method and device for broken glass photovoltaic module |
| CN115254901A (en) * | 2022-07-27 | 2022-11-01 | 西安热工研究院有限公司 | Photovoltaic module recovery system and method combined with thermal power plant |
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