The equipment adopts a closely arranged small-blade roller structure and a pusher plate feeding system, and realizes efficient shredding of PV panels through a mechanical design featuring low rotation speed and high torque. Meanwhile, some equipment is integrated with automatic identification functions, which can adjust the crushing force according to the material (e.g., crystalline silicon, thin film) and thickness of PV panels, avoiding over-crushing or incomplete crushing. For instance, its single-shaft shredder can quickly decompose PV panels into fragments of less than 50mm through the shearing and extrusion of high-alloy blades, laying a foundation for subsequent separation.
After crushing, materials are accurately classified using technologies such as high-frequency vibrating screens, airflow separation, and electrostatic separation. For example, eddy current separation can extract copper wires with a purity of 99.8%, while spectral identification separation can recover silver paste-coated silicon wafers (with a silver recovery rate of 95%). Some equipment is also equipped with near-infrared spectral detection and X-ray analysis, ensuring that the separation purity of materials such as metals, glass, and silicon powder exceeds 99%.
The equipment operates under negative pressure throughout the entire process and is equipped with a pulse dust collection system and a cyclone dust collector, effectively preventing dust leakage. For example, the two-in-one dust removal device of its circuit board recycling equipment enables dust emissions to meet national standards; when similarly applied to PV panel crushing, it can also achieve dust-free operation. In addition, some production lines adopt nitrogen-protected pyrolysis technology, which decomposes EVA films at 450-600℃ while suppressing the generation of harmful gases such as toluene and acetaldehyde.
The equipment is equipped with multiple safety protection mechanisms, such as overload protection, emergency braking, and anti-splash baffles, reducing risks for operators. In terms of energy consumption, by optimizing the transmission system and using energy-saving motors, the energy consumption per ton of processing is 35%-72% lower than that of traditional acid washing methods, with carbon emissions of only 28kg per ton.
The comprehensive recycling rate can reach over 99%, among which the recovery rate of aluminum frames exceeds 99%, the purity of glass particles reaches 99.2%, and the oxygen content of silicon powder is controlled below 200ppm—all of which can be directly reused in the production of PV modules. For example, after processing one ton of waste PV panels, 650kg of PV-grade glass (valued at 1,800 yuan), 120kg of solar silicon material (valued at 4,800 yuan), and 35kg of high-conductivity copper (valued at 2,450 yuan) can be produced.
For rare materials such as silver paste, the equipment adopts electrostatic separation and nano-catalysis technology, increasing the silver recovery rate to 96% with a purity of 99.9%. This technological breakthrough significantly improves recycling economy: when the annual processing capacity of a single production line reaches 150,000 tons, the comprehensive profit exceeds 9,000 yuan per ton.
The entire process—from feeding, crushing, and separation to discharging—operates automatically, reducing manual intervention. For example, the automatic robotic arm positioning and cutting system can complete aluminum frame stripping in 30 seconds, achieving a 100% recovery rate of metal frames. The intelligent control system monitors the equipment’s operating status in real time and automatically adjusts parameters to respond to material fluctuations.
The equipment adopts a modular structure, allowing flexible combination of crushing, separation, and purification units according to processing capacity requirements. At the same time, it is compatible with the processing of various types of PV panels (e.g., crystalline silicon, cadmium telluride), adapting to the diverse needs of the future market.
As a subsidiary of Mingxin Metallurgy, Jiangxi Mingxin Environmental Protection has inherited the parent company’s technical accumulation in the field of solid waste treatment. The parent company holds 3 national invention patents and more than 20 utility model patents, and its "waste electronic product resource recycling series of complete sets of equipment" has reached the advanced domestic level in overall technology, winning the First Prize of Jiangxi Provincial Science and Technology Progress. Although Jiangxi Mingxin Environmental Protection itself has relatively few patent records, its equipment R&D draws heavily on the parent company’s mature technologies in circuit board recycling, battery treatment, and other fields—such as dry physical crushing and enclosed separation. In addition, the parent company has passed the ISO9001 Quality Management System Certification, providing guarantees for the stability and reliability of the equipment.
Jiangxi Mingxin Environmental Protection’s PV panel crushing and recycling equipment, with advantages in efficient crushing, precision separation, environmental safety, high-value resource recycling, and automation integration, provides a mature solution for waste treatment in the photovoltaic industry. Its technical strength and economic efficiency not only align with the national environmental protection policy orientation but also help enterprises maximize the economic benefits of resource recycling. In the future, with the arrival of the PV panel retirement wave, this equipment is expected to further highlight its advantages in market competition.
