The first step is to dismantle the panel and recycle the aluminum alloy frame. The second step is glass, which requires a separator to separate the entire piece of glass from the panel at high temperature. The third step is crushing, using a shear crusher to break the cells processed in the previous step into small pieces. The fourth step is separation, which involves screening the crushed materials based on various physical and chemical properties to separate different materials.
The film on the surface of the photovoltaic panel is an organic silicone film, followed by an aluminum alloy frame, covered glass, and silver paste for the wires. These are common materials and are not polluted. The main recycling is a very small amount of heavy metals (cadmium telluride, germanium, gallium, etc.), which require chemical separation, but are also a source of profit. Photovoltaic module recycling method When recycling waste photovoltaic modules, the modules need to be disassembled, and the aluminum frame, glass and junction box parts are removed to obtain silicon wafers. “Inorganic acid dissolution method” and “heat treatment method”. Among them, “fixed container heat treatment method” and “fluidized bed reactor heat treatment method”.
The physical separation method of photovoltaic panel processing equipment first removes the aluminum frame and junction box of the module, then crushes the frameless module, separates the tin-coated solder strip and glass particles, and then grinds the remaining part, and uses electrostatic separation to obtain metal, silicon powder, backplane particles and EVA particles. The final product of this method is a mixture of different materials, and 98% of solar-grade purity silicon is recovered.
