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Harmless processing method of insulation backboard for scrapped crystalline silicon photovoltaic module

A harmless treatment, photovoltaic module technology, applied in photovoltaic power generation, semiconductor devices, electrical components and other directions, can solve problems such as environmental damage, and achieve the effects of avoiding pollution, saving resources, and good weather resistance

Active Publication Date: 2017-12-01
ZHONGTIAN PHOTOVOLTAIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

As a fluorine-containing material, the photovoltaic backplane will cause damage to the environment whether it is buried or incinerated

Method used

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Embodiment Construction

[0026] In the following, the technical solutions of the embodiments of the present invention will be clearly and completely described in combination with the specific content of the present invention.

[0027] A method for harmless treatment of an insulating backplane for scrapped crystalline silicon photovoltaic modules disclosed by the present invention specifically includes the following steps:

[0028] (1) Aluminum frame dismantling: Use a mallet or rubber hammer to cooperate with a shovel to remove the encapsulated aluminum frame of the scrapped photovoltaic module from the module;

[0029] (2) Separate the backplane from the components: use a utility knife to draw 5-10 lines on the backplane surface along the direction of the soldering strips on the components disassembled in the above step (1), and the distance between the two lines is 10-20cm. Then put it on the preheated heating table or laminator for heating, control the heating temperature to 120~150℃, the heating t...

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Abstract

The invention discloses a harmless processing method of an insulation backboard for a scrapped crystalline silicon photovoltaic module. The method includes following steps: disassembling an aluminum frame; separating the backboard and the module; cleaning the separated backboard; and crushing the backboard after cleaning, then performing degradation through an alcoholysis reagent, obtaining a fluorine-containing material mixture which is not dissolved in an alcohols solvent and a PET degradation product which is dissolved in the alcohols solvent, and finally processing the alcoholysis product. According to the method, harmless processing of the fluorine-containing photovoltaic backboard in the photovoltaic module is performed, PET in the photovoltaic backboard is degraded by employing the environment-friendly alcohols reagent, the remaining fluorine-containing material is used in a polyester coating industry, the product after the degradation of PET is used for aqueous polyurethane production, the alcohols reagent used in a recovery process can be recycled, the recycling of the photovoltaic backboard is truly achieved, and harmless processing of the photovoltaic backboard is realized.

Description

technical field [0001] The invention belongs to the field of scrapping treatment of photovoltaic modules, and in particular relates to a harmless treatment method for insulating backboards used in scrapped crystalline silicon photovoltaic modules. Background technique [0002] Among all kinds of renewable energy, solar energy has become the fastest growing renewable energy due to its obvious advantages such as cleanness, safety, inexhaustibility and inexhaustibility. The development and utilization of solar energy is of great significance to adjusting the energy structure, promoting the revolution of energy production and consumption, and promoting the construction of ecological civilization. In 2016, the annual newly installed capacity of photovoltaics in the world reached more than 76GW. With the implementation of the global climate agreement "Paris Agreement" and the continuous decline in the cost of photovoltaic power generation, the application areas and fields of photo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/049
CPCH01L31/049H01L31/1876Y02E10/50Y02P70/50
Inventor 刘香安孙万南王同心王强姚元毅陈坤廖洁王艳宁冒艺
Owner ZHONGTIAN PHOTOVOLTAIC MATERIALS
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