In the global process of promoting the clean energy transition, solar photovoltaic power generation, as a common form of renewable energy utilization, has maintained a growth in installed capacity. Meanwhile, the recycling and disposal of used solar photovoltaic panels, especially double-glass photovoltaic panels, have gradually drawn attention both within and outside the industry. Due to the characteristics of double-glass photovoltaic panels in terms of power generation efficiency and service life, their market share has expanded. This means that some of these photovoltaic panels may face retirement in the coming years. If they are not properly recycled and processed, it may lead to resource waste and also pose a risk of environmental pollution. Therefore, the industry has an actual demand for the efficiency and environmental friendliness of recycling technology.
In the physical disassembly process, the industry has begun to experiment with the application of "portable" processing equipment, combined with automated programs and AI image recognition systems, to assist in the disassembly of frames and junction boxes as well as the stripping of glass from the back panel. This helps to enhance the efficiency and accuracy of disassembly, and in some scenarios, the success rate of image recognition may remain above 95%. In the material separation and recycling process, the "green solvent method" has become one of the exploration directions. By using specific solvents, attempts are made to achieve the dissociation of materials such as EVA and solar cells. Currently, in some experiments, the reaction rate and recovery rate of EVA have shown good performance, and the technical indicators have improved to a certain extent compared with before. In addition, this technology does not use toxic mineral acids, which can reduce the risk of secondary pollution. Under experimental conditions, it has a good effect on the recovery of silver and silicon from scrapped photovoltaic panels, providing a new research direction for recycling technology.
With the gradual maturation of related technologies, the recycling and processing industry of used double-glass photovoltaic panels has begun to develop in a large-scale and standardized direction. At present, some major players in the industry have already laid out the research and development and production of recycling equipment. Through processes such as shredding, crushing and sorting, scrapped photovoltaic panels can be transformed into recyclable resources such as aluminum, glass, silicon powder, copper powder and EVA plastic. Meanwhile, building a complete recycling industrial chain has become a trend in the industry's exploration. From the initial layout of front-end recycling points, to the integration of midstream sorting, crushing, extraction and processing links, and then to the connection of back-end resource reuse, the synergy of each link has gradually increased, providing a certain space for the industry's development and also driving related employment.
Recycling and processing of used double-glass photovoltaic panels-Industry News-Jiangxi Mingxin Metallurgical Equipment Co., Ltd.