Lithium-ion battery positive and negative material crushing and recycling equipment
With the rapid development of the new energy industry, the number of lithium-ion batteries using lithium manganese oxide, lithium iron phosphate, etc. The diaphragm is composed of four parts, among which the positive electrode material is of high value and is also an important point of recycling. Taking the ternary lithium battery as an example, the positive electrode material accounts for about 35% of the cost, and the negative electrode material, electrolyte and diaphragm account for about 5% respectively. 8% and 8%, once the materials of waste lithium-ion batteries enter the environment, metal materials such as nickel, cobalt, and manganese in the positive electrode material, copper in the negative electrode, strong alkali and heavy metal ions in the electrolyte may cause heavy metal pollution and harm surroundings.
Lithium battery crushing and recycling production line
Lithium-ion battery positive and negative electrode material crushing and recycling equipment After crushing the waste lithium battery raw materials, the substances in the crushed products have achieved monomer dissociation, plastic shells, diaphragm paper, copper foil, aluminum foil and other substances, including cobalt lithium metal. Its production line is that the scrapped batteries enter the shredder for shredding, and the shredded batteries enter the special shredder for shredding. The positive and negative electrodes and separator paper inside the battery are broken up, and the broken materials enter the collector through the induced draft fan. Then, the dust produced in the crushing process is collected and purified by the pulse dust collector, and the material entering the collector enters the airflow sorting screen through the air locker, and the diaphragm paper in the positive and negative electrodes is collected by the airflow plus vibration, and the airflow The dust generated by the sorting machine is collected. Then the mixture is separated and recovered by the combined process of hammer vibration crushing, vibration screening and air flow separation to separate and recycle the positive and negative electrode components of the waste lithium battery. The current mechanical separation provides favorable conditions for later hydrometallurgy. The complete lithium battery crushing and recycling equipment has a simple process and an automated process, which can reduce the scrap rate and recycling rate of waste lithium battery resources.
1. Through the combined process of hammer vibration crushing, vibration screening and air flow separation, the resource utilization of metal copper and carbon powder in the anode material of waste lithium batteries can be realized.
2. The positive and negative electrode materials can be effectively separated from the carbon powder and the copper and aluminum foil through hammer vibration crushing, and then the copper foil and the carbon powder can be preliminarily separated by vibrating sieving based on the size difference and shape difference between the particles. The results of hammer vibration stripping and sieving separation are shown.
3. This equipment is mainly used for lithium-ion battery manufacturers to separate the positive and negative materials in scrap lithium batteries for the purpose of recycling. The complete set of equipment operates in a negative pressure state, without dust leakage, and the separation efficiency can reach more than 98%.
Working principle: First, the whole lithium battery is mechanically disassembled, the shell is separated, the diaphragm is separated, and then the positive and negative raw materials are crushed with a coarse crusher to less than 10mm, and then enter the particle crusher for peeling and crushing, and then enter the fine powder classifier for separation The tail ash is collected by the back cyclone separator and pulse dust collector.
Waste lithium battery recycling and processing equipment uses mechanical crushing and then uses vibration and sorting methods to classify waste lithium batteries. After classification, positive and negative electrode materials, electrode active materials, graphite and electrode active materials are selected, which can make waste cylinders Lithium batteries are reprocessed to recycle rare and precious metals, which has considerable economic and environmental benefits.
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