Research on the recycling of waste lithium batteries mainly focuses on the recovery of valuable positive electrode precious metals cobalt and lithium, and there are few reports on the separation and recovery of negative electrode materials. Therefore, by recycling waste lithium batteries, valuable metals such as nickel, cobalt, and lithium can be extracted and recycled.
Lithium battery resource processing equipment Lithium battery waste is transported to the crusher for crushing, and is crushed to 3cm; the material crushed by the crusher is first transported to the airflow sorting screen, and the diaphragm paper fragments are separated by the airflow sorting screen. Since the diaphragm paper fragments are lighter, they are sucked away to the collector one by the induced draft fan with the airflow, and the material after the diaphragm paper fragments are separated is transported to the crusher, and the crusher crushes the waste to mesh; the material crushed by the crusher is transported to the analyzer, and the analyzer performs air separation on the crushed material to sort out graphite powder, lithium cobalt oxide mixed powder and metal waste; the sorted graphite powder and lithium cobalt oxide mixed powder are transported to the collector two by the induced draft fan for collection, and the waste gas in the collector two is purified by the pulse purifier and then output to ensure that the discharged gas does not pollute the environment; the metal waste analyzed by the analyzer enters the first grading screen for screening and separation, and the first grading screen has two-stage screening to screen out metal materials and non-metallic parts of graphite powder and lithium cobalt oxide mixed powder, among which, the first grading screen screens out large particles of metal The material enters the magnetic separator, and the nickel and copper-aluminum metal powders in the metal are separated by the magnetic separator. The separated nickel is recycled and collected, and the separated copper-aluminum metal powders enter the second classification screen; the metal material with small particles screened out by the first classification screen enters the first specific gravity separator, and the copper-aluminum metal powders, graphite powders and lithium cobalt oxide mixed powders are separated by the first specific gravity separator. The copper-aluminum metal powders separated by the specific gravity separator enter the second classification screen together with the copper-aluminum metal powders separated by the magnetic separator. The graphite powder and lithium cobalt oxide mixed powder separated by the first specific gravity separator are transported to the second collector through the induced draft fan together with the graphite powder and lithium cobalt oxide mixed powder screened by the first classification screen. The second classification screen screens and separates the copper-aluminum metal powders. The screened and separated materials enter the second specific gravity separator, and the metal aluminum and copper are respectively separated by the second specific gravity separator for recycling and collection. At this point, the separation and collection of the metal part and the non-metal part of the lithium battery waste are completed.
Lithium battery resource processing equipment Cobalt, lithium, copper and plastic in waste lithium batteries are all valuable resources with high recycling value. At present, it has become a global consensus to realize the recycling of all components of waste materials. Therefore, our environmentally friendly, effective and reasonable disposal of waste lithium batteries can not only alleviate the increasingly serious resource shortage and environmental pollution problems, but also increase benefits.
