CN105355709B - A kind of glass separation method of crystalline silicon solar cell modules - Google Patents

A kind of glass separation method of crystalline silicon solar cell modules Download PDF

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CN105355709B
CN105355709B CN201510667835.7A CN201510667835A CN105355709B CN 105355709 B CN105355709 B CN 105355709B CN 201510667835 A CN201510667835 A CN 201510667835A CN 105355709 B CN105355709 B CN 105355709B
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component
glass
solar cell
silicon solar
solution
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CN105355709A (en
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周璐
付少永
熊震
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Trina Solar Co Ltd
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Changzhou Trina Solar Energy Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/82Recycling of waste of electrical or electronic equipment [WEEE]

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Silicon Compounds (AREA)
  • Processing Of Solid Wastes (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The present invention relates to a kind of glass separation method of crystalline silicon solar cell modules, for being for recycling and reuse to the glass for belonging to crystal-silicon solar cell, belong to solar cell recovery technology field, comprise the following steps:S1:Useless crystalline silicon solar cell modules are disassembled, frame and terminal box is removed;S2:Component after disassembling carries out hydro-thermal process;S3:Component is taken out, glass is to be completely segregated.The present invention carries out solvent heat or hydro-thermal process on the basis of terminal box and aluminium frame is manually disassembled to remaining component carries out the initial gross separation of component, glass is separated with the remainder of component, for next step cell piece complete separation and material further with provide basis, classification recovery is carried out by the various types of materials in the component that gives up, both resource has been saved, the discharge capacity of discarded object has been reduced again.

Description

A kind of glass separation method of crystalline silicon solar cell modules
Technical field
The present invention relates to a kind of recovery method of crystalline silicon solar cell modules, more particularly to a kind of crystal-silicon solar cell The glass separation method of component, for being for recycling and reuse to the glass for belonging to crystal-silicon solar cell, belongs to sun electricity Pond recovery technology field.
Background technology
With society, economic fast development, the demand to the energy is increasing, and the energy turns into restriction countries in the world in short term The key factor of economic development, increasing country starts to develop solar energy resources, seeks the new power of economic development.The sun Can be both primary energy, be again regenerative resource.Its aboundresources, both can freely use, and without transporting, in use To environment without any pollution, most cleaning and the environment-friendly energy are generally considered.In past more than 20 years, solar-electricity Installation of the pond in various countries constantly increases in geometry level.EPIA (EPIA)] prediction, the year two thousand twenty photovoltaic generation can The installed capacity of 345GW is provided, the installed capacity of 1081GW can be provided to the year two thousand thirty.
Although solar energy is considered as a kind of minimum energy of waste yield, during the use of solar module not Can produce environmentally harmful waste, but the solid waste produced after solar cell is scrapped can not be ignored.At this stage, it is brilliant Body silicon solar cell accounts for whole photovoltaic market share about 80%, and in leading position, and general crystal silicon solar batteries make It is 25-30 with the life-span, after service life, the transformation efficiency of solar cell can drastically decline, until failing, scrapping. In recent years, the solar panel that the nineties in last century installs subsequently enters disenabling stage.How effectively to reclaim and process into Enter disenabling stage crystal silicon solar energy battery turn into ensure crystal silicon solar energy battery industry sustainable development it is important because Element.
The content of the invention
The present invention is directed to above mentioned problem of the prior art, there is provided a kind of glass separation side of crystalline silicon solar cell modules Method, glass is separated with the remainder of battery component, be next step cell piece complete separation and material further with Reliable basis are provided.
Therefore, the present invention uses following technical scheme:
A kind of glass recycling methods of silicon solar cell component, comprise the following steps:
S1:Useless crystalline silicon solar cell modules are disassembled, frame and terminal box is removed;
S2:Component after disassembling carries out hydro-thermal process:Component after disassembling is positioned in high-pressure hydrothermal reaction kettle, plus Enter the aqueous solution or water with the mixed solution of organic matter as reaction medium, speed of agitator is set to 50-80rpm, in 60-700 Heater switch is closed after reacting 1-96h under degree Celsius, master switch is closed to after being cooled to room temperature;
S3:Component is taken out, glass is to be completely segregated;
The aqueous solution is following solution of deionized water or any concentration:HNO3Solution, HCl solution, CH3COOH is molten Liquid, NaOH solution;The water and mixed solution of the water with acetone, water and ethanol that the mixed solution of organic matter is any concentration The mixed solution of mixed solution, water and isopropanol.
Further, the aqueous solution is acid, alkalescence and neutrality the aqueous solution.
Further, in step s 2, the component after disassembling is positioned in high-pressure hydrothermal reaction kettle, adds reaction medium To not having component, speed of agitator is set to 55-75rpm, closes heater switch after 15-60h is reacted under 100-550 degrees Celsius, extremely Master switch is closed after being cooled to room temperature, component is taken out, glass is to be completely segregated.
Further, in step s 2, the component after disassembling is positioned in high-pressure hydrothermal reaction kettle, adds reaction medium To not having component, speed of agitator is set to 55-70rpm, closes heater switch after 20-40h is reacted under 180-350 degrees Celsius, extremely Master switch is closed after being cooled to room temperature, component is taken out, glass is to be completely segregated.
Further, in step s 2, the component after disassembling is positioned in high-pressure hydrothermal reaction kettle, adds reaction medium To not having component, speed of agitator is set to 58-65rpm, closes heater switch after 20-35h is reacted under 190-250 degrees Celsius, extremely Master switch is closed after being cooled to room temperature, component is taken out, glass is to be completely segregated.
The present invention carries out solvent heat or hydro-thermal on the basis of manually terminal box and aluminium frame is disassembled to remaining component Treatment carries out the initial gross separation of component, and glass is separated with the remainder of component, be next step cell piece complete separation with Material further with provide basis.Classification recovery is carried out by the various types of materials in the component that gives up, resource has both been saved, and Reduce the discharge capacity of discarded object.
Brief description of the drawings
Fig. 1 is the comparison diagram by the crystalline silicon solar cell modules after before processing of the present invention.
Specific embodiment
In order that those skilled in the art are better understood from the present invention program, below in conjunction with accompanying drawing, to of the invention Technical scheme carries out clear, complete description.
The glass recycling methods of the silicon solar cell component that the present invention is provided, comprise the following steps:
S1:Useless crystalline silicon solar cell modules are disassembled, frame and terminal box is removed;
S2:Component after disassembling carries out hydro-thermal process:Component after disassembling is positioned in high-pressure hydrothermal reaction kettle, plus Enter the aqueous solution or water with the mixed solution of organic matter as reaction medium, speed of agitator is set to 50-80rpm, in 60-700 Heater switch is closed after reacting 1-96h under degree Celsius, master switch is closed to after being cooled to room temperature;
S3:Component is taken out, glass is to be completely segregated.
Wherein, the aqueous solution is following solution of deionized water or any concentration:HNO3Solution, HCl solution, CH3COOH solution, NaOH solution;The mixed solution of the water and organic matter for water and the acetone of any concentration mixed solution, The mixed solution of the mixed solution, water and isopropanol of water and ethanol.
It is described with reference to specific embodiment:
Embodiment one:
One piece of the crystal silicon solar battery component of frame and terminal box is removed in selection;
Component is positioned in the large-size reactor of 6000L, the CH of 1mol/L is added3COOH solution is stirred to not having component Mix rotating speed is set to 50rpm, and heater switch is closed after 90h is reacted under 65 degrees Celsius, and master switch is closed to after being cooled to room temperature;
Component is taken out, it is found that glass is completely segregated.As shown in Figure 1.
Embodiment two:
One piece of the crystal silicon solar battery component of frame and terminal box is removed in selection;
Component is positioned in the large-size reactor of 6000L, the HNO of 2mol/L is added3To not having component, stirring turns solution Speed is set to 55rpm, and heater switch is closed after 60h is reacted under 100 degrees Celsius, and master switch is closed to after being cooled to room temperature;
Component is taken out, it is found that glass is completely segregated.As shown in Figure 1.
Embodiment three:
One piece of the crystal silicon solar battery component of frame and terminal box is removed in selection;
Component is positioned in the large-size reactor of 6000L, adds the HCl solution of 1mol/L to not having component, stirring turns Speed is set to 55rpm, and heater switch is closed after 35h is reacted under 180 degrees Celsius, and master switch is closed to after being cooled to room temperature;
Component is taken out, it is found that glass is completely segregated.As shown in Figure 1.
Example IV:
One piece of the crystal silicon solar battery component of frame and terminal box is removed in selection;
Component is positioned in the large-size reactor of 6000L, adds deionized water to not having component, speed of agitator is set to 60rpm, heater switch is closed after 25h is reacted under 230 degrees Celsius, and master switch is closed to after being cooled to room temperature;
Component is taken out, it is found that glass is completely segregated.As shown in Figure 1.
Embodiment five:
One piece of the crystal silicon solar battery component of frame and terminal box is removed in selection;
Component is positioned in the large-size reactor of 6000L, adds the ethanol solution of any concentration to not having component, stirred Rotating speed is set to 65rpm, and heater switch is closed after 23h is reacted under 250 degrees Celsius, and master switch is closed to after being cooled to room temperature;
Component is taken out, it is found that glass is completely segregated.As shown in Figure 1.
Embodiment six:
One piece of the crystal silicon solar battery component of frame and terminal box is removed in selection;
Component is positioned in the large-size reactor of 6000L, adds the NaOH solution of any concentration to not having component, stirred Rotating speed is set to 80rpm, turns off heater switch after 5h is reacted under 700 degrees Celsius, until turning off master switch after being cooled to room temperature;
Component is taken out, it is found that glass is completely segregated.As shown in Figure 1.
Embodiment seven:
One piece of the crystal silicon solar battery component of frame and terminal box is removed in selection;
Component is positioned in the large-size reactor of 6000L, the mixed solution of water and acetone of any concentration is added to not having Component is crossed, speed of agitator is set to 75rpm, heater switch is turned off after 15h is reacted under 550 degrees Celsius, until room temperature is cooled to, Turn off master switch;
Component is taken out, it is found that glass is completely segregated.As shown in Figure 1.
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, should all belong to the scope of protection of the invention.

Claims (5)

1. a kind of glass recycling methods of silicon solar cell component, comprise the following steps:
S1:Useless crystalline silicon solar cell modules are disassembled, frame and terminal box is removed;
S2:Component after disassembling carries out hydro-thermal process:Component after disassembling is positioned in high-pressure hydrothermal reaction kettle, adds water The mixed solution of solution or water and organic matter is used as reaction medium, and speed of agitator is set to 50-80rpm, Celsius in 60-700 Heater switch is closed after the lower reaction 1-96h of degree, master switch is closed to after being cooled to room temperature;
S3:Component is taken out, glass is to be completely segregated;
The aqueous solution is following solution of deionized water or any concentration:HNO3Solution, HCl solution, CH3COOH solution, NaOH solution;The water is mixed with mixed solution of the water with acetone, water and the ethanol that the mixed solution of organic matter is any concentration Close the mixed solution of solution, water and isopropanol.
2. glass recycling methods of silicon solar cell component according to claim 1, it is characterised in that:The aqueous solution is Acid, alkalescence and neutrality the aqueous solution.
3. according to the glass recycling methods of any described silicon solar cell components of claim 1-2, it is characterised in that:In step In S2, the component after disassembling is positioned in high-pressure hydrothermal reaction kettle, adds reaction medium to not having component, and speed of agitator is set It is 55-75rpm, heater switch is closed after 15-60h is reacted under 100-550 degrees Celsius, master switch is closed to being cooled to after room temperature, will Component takes out, and glass is to be completely segregated.
4. according to the glass recycling methods of any described silicon solar cell components of claim 1-2, it is characterised in that:In step In S2, the component after disassembling is positioned in high-pressure hydrothermal reaction kettle, adds reaction medium to not having component, and speed of agitator is set It is 55-70rpm, heater switch is closed after 20-40h is reacted under 180-350 degrees Celsius, master switch is closed to being cooled to after room temperature, will Component takes out, and glass is to be completely segregated.
5. according to the glass recycling methods of any described silicon solar cell components of claim 1-2, it is characterised in that:In step In S2, the component after disassembling is positioned in high-pressure hydrothermal reaction kettle, adds reaction medium to not having component, and speed of agitator is set It is 58-65rpm, heater switch is closed after 20-35h is reacted under 190-250 degrees Celsius, master switch is closed to being cooled to after room temperature, will Component takes out, and glass is to be completely segregated.
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EP3118902A1 (en) * 2015-07-15 2017-01-18 Universite De Liege Method for recycling photovoltaic solar cells module
CN108767064A (en) * 2018-06-01 2018-11-06 汉能新材料科技有限公司 A kind of separation method of the organic membrane module of solar cell module
TWI682555B (en) * 2018-10-19 2020-01-11 國立臺南大學 Recovery method of solar cell module (1)
CN111211191B (en) * 2020-01-13 2022-08-16 铉锦(上海)环保科技有限公司 Dissociation method of photovoltaic module
CN111438161A (en) * 2020-04-01 2020-07-24 铉锦(上海)环保科技有限公司 Method for separating photovoltaic module by chemical solvent method
CN112259719B (en) * 2020-10-22 2022-09-16 昆明理工大学 Comprehensive recovery method of waste photovoltaic module and preparation method of silicon-carbon negative electrode material

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CN101719529B (en) * 2009-11-17 2011-07-06 广东金刚玻璃科技股份有限公司 Method for recovering crystalline silicon cell plate in double-glass solar cell assembly with PVB interbed
KR20120097961A (en) * 2011-02-28 2012-09-05 인하대학교 산학협력단 Controlling method of interface between ag and si using lead-free frits for ag electrode in silicon solar cell
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Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2

Patentee after: trina solar Ltd.

Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2

Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd.

Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2

Patentee after: TRINASOLAR Co.,Ltd.

Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2

Patentee before: trina solar Ltd.