May. 08, 2020
Aluminum beverage cans first appeared in 1959, and by 1963 the two-piece DWI cans were officially launched and began to be promoted. It wasn't until 1968 that several aluminum producers in the United States, especially Reynolds Metals, became aware of the value of cans, before launching aluminum can recycling programs. In 1973, the US newspaper "Consumption Growth Limit" put forward the idea of recycling cans, which is the first official literature on recycling cans in the world. Our company supplies aluminum can recycling reverse vending machines.
The recovery and reuse of the cans can save a lot of bauxite resources and make the bauxite resources be effectively utilized; save a lot of energy and alleviate the energy shortage; reduce the emission of pollutants in the aluminum industry and protect the environment.
The energy required to regenerate aluminum using recycled aluminum cans is only 5% of the energy required to produce electrolytic aluminum from raw materials, resulting in a 95% reduction in emissions, thereby reducing the amount of greenhouse gas emissions and retaining bauxite and water resources.
3104 alloy is used for the can body material, 5052 and 5182 alloys for can lid material, and 5182 alloys for pull ring material. The main added elements of these three alloys are magnesium and manganese. The composition is relatively stable during recycling and the loss is low during compound smelting, so it is easy to recycle and reuse.
The recovered cans, after waste removal, crushing, and other pretreatment processes, are converted into regenerated aluminum ingots and regenerated aluminum water. Adding more than 25% of the new material to the regenerated charge can regulate the chemical composition and smelt into a qualified 3104 alloys.
In industrially developed countries, more than 45% of 3104 alloy tank materials are produced from recycled waste tanks. For example, recycled aluminum cans in Japan are reused by about 57.3% of aluminum cans, while 2/3 of the current cans in the United States are produced from waste cans. In addition, part of the recovery tank is used as a raw material for aluminum profiles, castings, and die castings, and is used as a deoxidizer for steelmaking in small amounts.
The above information is provided by reverse recycling vending machine suppliers.