Technical process of lithium-ion batteries recycling equipment

At present, there are two main ways to recycle waste power lithium-ion batteries: one is cascade utilization; the other is dismantling and recycling. Lithium battery raw materials are mainly composed of: positive electrode material, negative electrode material, separator, electrolyte. In order to eliminate the safety hazard during lithium-ion battery recycling, pre-discharge must be performed. The main discharge method is the immersion method, which is simple and feasible, and is currently a commonly used method. The recycling of waste batteries must first realize the separation of active materials from aluminum foil, plastics, separators and metal materials, and screen out the electrode materials of valuable metals. The battery components such as materials, current collectors and battery casings are crushed, sieved, magnetically separated, finely pulverized and classified to obtain valuable high-content substances.

Technical process: The pretreated battery is sent to the hammer crusher through the conveyor for rough crushing, and the black powder of the material is sorted out by the vibration screening machine. The remaining material passes through a magnetic separator to separate out the iron in the material. The conveyor sends the sorted materials to the second crusher for re-crushing, and then the black powder in the materials is sorted out by the vibrating screening machine, and the remaining materials enter the eddy current crusher for crushing, and the vibrating screening machine separates the materials. Copper powder and aluminum powder are sorted out. The treatment line is equipped with a dust collection device, and the dust of the whole treatment line is collected by negative pressure. After vibration screening, it enters the pulse dust collector and spray tower for exhaust gas purification, and then discharges up to the standard at high altitude.

The existing waste lithium battery treatment process has the disadvantages of low recovery rate, prone to secondary pollution, and difficulty in further recycling of materials. Therefore, it is proposed whether the lithium battery can be broken and recycled by the crushing method, so that copper and graphite can be finely recovered. Metal. The environmentally friendly waste lithium battery recycling production line improves the overall recycling process to achieve the classification and separation of waste materials in waste lithium batteries, while avoiding environmental pollution during its processing.

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