Waste lithium battery recycling crushing and sorting production line
Release Time：2022-11-22 Source：Lithium battery recycling equipment Share：
The recycling of used lithium-ion batteries is of great significance
Lithium battery recycling is mainly processed through a kind of Henan xingm waste lithium battery crushing and recycling equipment, waste lithium battery crushing and sorting equipment by increasing the pretreatment link before the recycling and processing of lithium battery raw materials, as well as the adoption of more advanced technology to extract all kinds of elements in the waste lithium battery, which contains nickel, cobalt, manganese, copper, aluminum, etc., equipment process production line in reducing the subsequent pollution at the same time Get high value content of recycled materials, improve the economic value, so the recycling of used lithium batteries is of great significance.
Lithium battery is mainly composed of shell, positive electrode, negative electrode, electrolyte and diaphragm. The positive electrode is composed of lithium cobaltate powder coated on both sides of the aluminum foil collector through PVDF, which plays a bonding role; the negative electrode structure is similar to the positive electrode, composed of carbon powder bonded on both sides of the copper foil collector. At present, the research on the resourceization of waste lithium batteries mainly focuses on the recovery of cobalt and lithium, which are valuable precious metals in the positive electrode. The copper (about 35%) in the negative electrode of Li-ion battery waste is an important production material widely used, and the carbon powder adhered to it can be used as additives for plastics and rubber. Therefore, the effective separation of the constituent materials of waste lithium battery cathodes is a driving force for the resourcefulness of waste lithium batteries to the limit and the elimination of their corresponding environmental impact.
End-of-life lithium batteries are sent by conveyor into the primary shredder for shredding, and the shredded materials are sent through the conveyor into the secondary multi-knife crusher for the second crushing, and the materials after the secondary crushing enter the conveyor while setting the magnetic separation equipment, which can sort out the iron in the materials. The sorted material is sent to the airflow sorter through the conveyor. Through the fan and cyclone feeder to separate out the positive and negative diaphragm paper, the sorted positive and negative pieces into the three-stage crusher for fine crushing, the material will be crushed to about 20 mesh. The crushed material is fed into the cyclone separator by the negative pressure system for dust filtration.
Through two airflow sorting, the materials with different densities are stratified, and then the positive and negative materials with copper, aluminum and nickel are obtained, while all the ultra-fine dust is brought into the pulse dust collector by the negative pressure system for collection. And the tail gas obtained by filtration will continue to be sent by the negative pressure system to the tail gas treatment equipment for air purification, so that it can reach the environmental protection emission standard before high altitude discharge.