Recovery device for photovoltaic module

Abstract

The invention discloses a recovery device for a photovoltaic module. The recovery device comprises a bearing assembly and a cutting assembly. The bearing assembly is used for bearing the photovoltaicmodule. The cutting assembly comprises a knife holder and a heat knife. The height of the knife holder can be adjusted, and the heat knife is fixed to the knife holder. The heat knife is located abovethe bearing assembly and used for cutting an EVA material layer of the photovoltaic module through the relative motion between the knife holder and the bearing assembly so that a glass pane, a battery piece and a backboard of the photovoltaic module can be separated and recovered. Compared with a common recovery scheme in the prior art, the recovery device is simple in structure and easy to operate, the cost is relatively low, recovered parts are complete and do not contain redundant waste, no harmful gas can be produced in the recovery process and the safety is made higher.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaics, in particular to a recycling device for photovoltaic components. Background technique [0002] Photovoltaic modules are formed by laminating glass plates, EVA material layers, battery sheets, EVA material layers and back sheets in sequence. Among them, resources such as silicon, aluminum, silver, and glass in glass sheets, battery sheets, and back sheets, Most can be recycled through recycling. The cohesive force of the EVA (ethylene-vinyl acetate copolymer) material layer is the main force connecting the layers of the photovoltaic module. How to break this force to separate the layers of the photovoltaic module is the core issue of recycling photovoltaic modules. [0003] The following methods are commonly used in the prior art to recycle photovoltaic modules: 1. Physical method: physically crush the photovoltaic modules into particles, screen and classify the particles, and then re...

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Problems solved by technology

[0004] However, the above-mentioned methods all have deficiencies, such as using physical methods for recycling, there are too many parts that need to be broken and the parts need to be broken into smaller sizes, the energy consumption and cost are high, and there are different layer structures in the products obtained by crushing Mixing of components, part of the product has low purity and is difficult to reuse; recovery by pyrolysis needs to decompose all EVA, so the energy consumption and cost are also high, and because the process includes many physical and chemical reactions, it is difficult for high-purity Material acquisition has an impact. In the high-temperature process, all organic matter needs to be removed through high-temperature reaction, otherwise a large amount of harmful gas will be generated; while the reaction time for recovery by solvent method is generally long, the recovery efficiency is low, and a large amount of waste gas and gas will be generated. Waste liquid will cause great harm to the environment and is not suitable for large-scale recycling operations

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