What is the significance of recycling of used UPS batteries, the largest amount of industrial UPS batteries is the battery, and lead accounts for more than 50% of the total cost of the battery, can use fire, wet metallurgical process and electrolysis technology to recover the metal components, the plastic shell of the battery can also be recycled, basically can be achieved without secondary pollution, the purpose of recycling used UPS batteries is important to extract lead and other metal components.
Waste lead-acid battery recycling smelting methods.
1. Pyrometallurgy
Pyrometallurgy generally involves placing the lead paste in a furnace and melting the paste at over 1000℃. If coke or coal is used as fuel, there will be a lot of carbon dioxide, lead dust and sulfur dioxide.
2. Wet Smelting
Wet smelting transfers the process of recovering lead paste from pyrometallurgical smelting to liquid phase and treats lead paste by chemical method to overcome the defects of pyrometallurgical smelting, such as high energy consumption, high lead volatilization loss and high pollution, and has the advantages of high efficiency in producing pure metal, high output and low emission. Under the increasingly strict requirements of environmental protection, the wet smelting process is receiving more and more attention in the field of waste battery treatment.
Waste lead-acid battery recycling process.
I. Transport the used UPS lead-acid batteries to the warehouse of the smelter using special environmental protection vehicles.
II. Pouring the electrolyte of waste lead-acid batteries into the sedimentation tank for drug treatment.
Third, disassemble the used lead-acid batteries and send the shells to the plastic recycling plant for professional treatment.
Fourth, sort the used UPS lead-acid battery partitions and send them to a professional plant for recycling.
V. Send the sorted waste pole plates to a large reflection furnace for smelting and making lead ingots for recycling.
VI. The waste water appearing in the smelting process flows into the sedimentation pond and is treated with electrolyte for drug treatment.
vii. The waste slag appearing in the smelting process is sent to a professional iron smelter for treatment.
VIII. The waste smoke in the smelting process will be safely discharged after being treated by the bag dust removal device, and thus, the environmental protection recycling process of used lead-acid batteries is finished.
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