Lead-acid battery recycling refining process equipment
Now the trams and cars all over the streets and alleys are inseparable from a product called lead-acid battery. With the development of transportation and the birth and application of electronic products, the demand for lead-acid batteries can be said to be in short supply. There is a large space for development, and it has also become a trend of rapid development. So here comes the question. The use of so many lead-acid batteries will inevitably result in a large number of waste lead-acid batteries. At this moment, what do we need to do to solve this thorny problem?
Lead-acid battery recycling refining process
The waste lead recovery technology for waste lead-acid batteries is generally divided into three types: pyrometallurgy process, hydrometallurgy process, and solid-phase electrolysis process.
1. Pyrometallurgy process
Reduction smelting is mainly used for pyrolysis of waste lead-acid batteries. In addition to reducing agents, fluxes such as iron filings, sodium carbonate, limestone, quartz and fluorite can also be added to the smelting process.
2. Hydrometallurgy process
The battery fragments obtained after dismantling and pretreatment of waste lead-acid batteries are a mixture of metal lead, lead oxides, lead salts and other metals such as copper, silver, and arsenic.
Hydrometallurgical technology, also known as electrolysis, selectively reduces all lead compounds in battery fragments to metallic lead by the action of electricity. Its main feature is that there is no waste gas and waste residue in the smelting process, and the recovery rate of lead can reach 95~97%.
The working principle of the hydrometallurgical technology is to add a reducing agent to the solution, and the reducing agent in the lead reduction process can be configured with iron and steel pickling wastewater to achieve the purpose of "using waste to treat waste".
3. Solid-phase electrolysis process
The solid-phase electrolysis process uses sodium hydroxide aqueous solution as the electrolyte, the cathode and anode are made of stainless steel plates, and the solid-phase leaded substance molecules in the lead paste during electrolysis are used to obtain electrons from the cathode surface and reduce to metallic lead.
Lead-acid battery recycling related equipment
1. Lead-acid battery dismantling machine
The battery disassembly machine is to disassemble the old lead-acid battery to achieve the purpose of separating the lead block and the plastic shell, and then reusing it. The waste battery dismantling machine manually feeds the waste battery, the waste battery enters the body, the propulsion system pushes the battery into the position to be cut, and the crank drives the cutting head to accurately cut off the upper cover of the waste battery [the cutting head can be adjusted], the propulsion system again Push the next battery forward, push the previous battery forward, and then the high-frequency vibration motor works quickly to shake the lead core out of the battery shell, and the shell core is completely disassembled and separated.
2. Lead-acid battery cupola
The use of waste battery lead smelting furnace can well extract the lead in waste battery, and waste battery lead smelting furnace can still meet the requirements of energy saving and environmental protection even in the process of lead smelting.
Waste battery lead smelting furnace equipment includes intermediate frequency power supply cabinet, compensation capacitor, furnace body and water-cooled cable, reducer, the furnace body is composed of four parts: furnace shell, induction coil, furnace lining, tilting furnace reduction box, etc. The furnace shell is made of non-magnetic materials The induction coil is a helical cylinder made of a rectangular hollow tube, and cooling water is passed through the tube during smelting. The copper bar drawn out of the coil is connected to the water-cooled cable. The furnace lining is close to the induction coil and is made of quartz sand. The tilting of the furnace body is directly rotated by the tilting furnace gearbox. , The rotation is stable and reliable, and when an emergency power outage occurs, the furnace is closed and the furnace is turned to avoid danger.
The control of the tilting reduction box motors of the two furnace bodies can be selected through the furnace selection switch. The switch box with four-core rubber wire enables the operator to stand in a suitable position to control the tilting and resetting of the furnace body. Nowadays, it is very common to use waste battery lead smelting furnaces to smelt lead. Here we would like to remind everyone to remember to pay attention to environmental protection issues when smelting lead, reduce environmental pollution and lead a healthier life.
The above is a brief introduction to the current situation and process of waste lead-acid battery recycling and utilization that SUNY GROUP can do. Waste lead-acid batteries have high lead content, and their recycling has strong economic and environmental benefits.
Recommend products
CONTACT US:
If you have any requirement or suggestion, please fill in the form and send to us, thanks!E-mail:sunymachine@gmail.com | Whatsapp:+8613674945231
