Lithium battery pole piece crushing and recycling equipment scheme
Lithium battery pole piece crushing and recycling equipment: positive and negative materials and a small amount of plastic enter the friction decomposition machine to decompose metal copper, aluminum, positive and negative powder and plastic, and then separate various materials through aggregation, screening and specific gravity sorting, and the pole piece is removed. The polar powder is then cracked to remove organic matter.
The working principle of the waste lithium battery recycling and processing equipment: the organic solvent dissolves the binder pvdf on the electrode to make the lithium cobalt oxide fall off from the aluminum foil. In addition, N-methylpyrrolidone is used as a solvent, and the positive electrode is immersed at 120 degrees. Using the organic solvent method can effectively separate the polar powder and aluminum foil, and use the distillation method to reuse the solvent, but the cost of organic solvents is high, and the cost of equipment and operation are also high, making it difficult to realize an industrialized industry.
Waste lithium battery recycling technology:
(Organic solvents include N-methylpyrrolidone (NMP), N,N-dimethylformamide (DMF) dimethyl sulfoxide (DMSO) acetone, etc. Because acetone DMSPO is volatile, NMP is better for organic adhesives and DMF. Considering the use of water solvent adhesives in existing lithium-ion power batteries, water and ethanol were added to the adhesive screening.
Waste residue treatment technology for one-stop solution of waste lithium battery recycling and treatment
Lithium battery pole piece crushing and recycling equipment: The graphite residue of the cathode sheet is milled into the sorting system by crushing balls. After simple treatment, it can be used for building materials; the graphite is then dehydrated and dried and the flotation agent is produced by fire method to obtain relatively pure graphite. The graphite is a mixture of natural graphite and artificial graphite. The graphite can be used for graphite crucibles and graphite rods. Add raw materials.
One-stop solution for waste lithium battery recycling and treatment: pyrolysis technology and waste gas treatment
Advantages: The furnace is built-in, the materials are pushed back and forth in the furnace, the furnace jacket furnace occupies a small area, and the energy utilization rate is high. The combustion system is used for heating and self-use, and the excess waste gas produced by crushing and sorting is used for combustion and oxygen supplementation, so as to achieve the comprehensive utilization of various waste gas combustion and pyrolysis heating. , and then perform simple treatment to meet the emission standards. This process does not require investment in the exhaust gas RTO regenerative combustion system with large operating costs and high operating costs.
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