Pollution-free recycling method for photovoltaic module

A technology of photovoltaic modules and recycling methods, which is applied in glass recycling, electronic waste recycling, recycling technology, etc., can solve the problems of backplane material inclusions, difficulties, and difficulty in fully separating a single component, so as to improve green international competition power, avoid pollution, and increase market acceptance

Inactive Publication Date: 2018-07-10
ZHONGTIAN PHOTOVOLTAIC MATERIALS
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, this method is difficult to achieve sufficient separation of a single component, and the inclusion of backing material makes subsequent processing more difficult

Method used

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Embodiment Construction

[0023] 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.

[0024] A pollution-free recycling method for photovoltaic modules disclosed in the present invention specifically includes the following steps:

[0025] (1) Dismantling of the aluminum frame: the packaged aluminum frame and junction box of the scrapped photovoltaic module are removed from the module by mechanical dismantling;

[0026] (2) Separate the backplane from the components: Place the components disassembled in the above step (1) on a flat operating platform with the glass facing down. The surface temperature of the control platform is 60~160°C, and the operating surface temperature is 60-350°C The steel wire or blade separates the backplane from the packaging material. During the separation process, the middle backplane layer is lifted, and the surface of the backplane ...

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Abstract

The invention discloses a pollution-free recycling method for a photovoltaic module. The method comprises disassembling an aluminum frame, separating a back plate from a component, separating a battery sheet layer, carrying out high-temperature calcination treatment, and treating the back plate. The back plate treatment process comprises crushing the back plate through a crusher so that the average size of the crushed back plate is controlled within 10mm, adding 0.1-15% of an acid absorbent, 0.1-20% of inorganic powder, 0.1-25% of a compatilizer and 0.1-5% of an anti-aging aid into the crushedback plate, carrying out uniform mixing at a high speed, putting the mixture into a casting extruder and carrying out extrusion casting at 250-320 DEG C to obtain sheets with the sizes of 150 to 800micrometers.

Description

technical field [0001] The invention belongs to the field of waste treatment of photovoltaic modules, and in particular relates to a pollution-free recovery method of photovoltaic modules. Background technique [0002] As the total installed capacity of photovoltaics in my country increases year by year, large-scale scrapping of photovoltaic modules in my country is inevitable in the near future. Therefore, it is necessary to prepare large-scale, high-efficiency, low-energy consumption, and low-cost photovoltaic module recycling technology reserves in advance to be prepared and achieve sustainability. develop. The life cycle of photovoltaic modules is generally 25 years. When the conversion efficiency drops to a certain level, the modules will fail and need to be scrapped and replaced. Generally speaking, solar energy is regarded as an energy source with minimal waste generation, and no environmentally harmful waste will be generated during the use of components, but the sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00B29C47/92B29C48/92
CPCB09B5/00B29C48/92B29C2948/92704B09B3/40Y02W30/20Y02W30/60Y02W30/82
Inventor 陈坤
Owner ZHONGTIAN PHOTOVOLTAIC MATERIALS
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