Device for charged crushing and electrolyte recovery of waste lithium batteries
Release Time：2022-11-19 Source：Lithium battery recycling equipment Share：
Today we are going to talk about a kind of used power lithium battery recycling charged crushing and electrolyte recovery device. Batteries are certainly not unfamiliar, now transport, communication tools, etc. are very developed, the use of equipment is not the same, the battery used inside is also different. Today we will talk about how to deal with the power lithium battery used in the car abandoned is the right way to deal with it?
The power battery is firstly used for gradient utilization, and then for resource recovery; and we mainly talk about a kind of waste power lithium battery charged crushing and electrolyte recovery device today is resource recovery.
We note that the resource utilization here does not include lithium iron phosphate! Why, because if lithium iron phosphate is directly scrapped, disassembled and recycled, the revenue is limited, the composition of iron is not valuable, and the content of lithium is very small, 1 ton of lithium iron phosphate recycling economic benefits in about 10,000, if used as a secondary use revenue in about 30000-40000, so from these two aspects, lithium iron phosphate is more suitable for secondary use.
Automotive batteries - ternary lithium batteries are more suitable for resource-based recycling. Ternary batteries contain nickel cobalt manganese price is relatively high, even if directly dismantled, the return is also very considerable. So in comparison, ternary batteries are more suitable for dismantling and recycling. The price of dismantling and recycling of ternary batteries is 40,000-50,000 yuan/ton. If the dismantled nickel-cobalt-manganese is then used as the precursor of ternary materials, the price is higher, and the unit price is 80,000 yuan/ton in Ningde Times, for example.
Ternary lithium battery is mainly composed of shell, positive electrode material, negative electrode material, collector fluid, diaphragm and electrolyte, all the materials here are worth recycling, and if they are not crushed and dismantled, the valuable materials and components in the waste battery cannot be recovered. The electrolyte in the battery accounts for about 12% of the cost.
The charged lithium battery electrolyte is volatilized in oxygen-poor heat, the heat source is using the charged crushed material's own discharge heat and the residual heat of the exhaust gas discharged from the oxygen-free cracking and combustion system to do the heat source, no external supplementary heat source is needed; the equipment has oxygen detection, automatic nitrogen replenishment, automatic temperature control, explosion-proof and heat preservation system and other systems to ensure that the volatilization system contains less than 2% oxygen: nitrogen into carbon dioxide automatic heating system and high floating point 140° water liquid Heating system to make the material temperature in less than 140 ° or so, to ensure that below 140 ° electrolyte quickly volatilized (routinely in 40 seconds all volatilization). Closed wind in and out of the system in and out and external isolation, disconnect the gas path, and to prevent with a unified even explosion and many other functions, in the process of volatilization and transport can be broken up, volatilizer equipment with a negative pressure collection port at the upper end, can be volatilized waste gas instant negative pressure suction away sent to the combustion treatment system.
Waste power lithium battery charged crushing using physical method crushing and cracking technology process, not only can recover valuable metals have economic benefits, electrolyte thermal volatilization device to prevent waste lithium battery in the process of disassembly and crushing electrolyte generated by harmful gases such as emissions in the air, the whole device and process flow is simple, easy to scale production, to achieve the resourceful and high-value use of waste.