What are the steps in the recycling process of waste aluminum cans?
Aluminum has high recyclability and high regeneration efficiency. Among industrial metals, scrap aluminum is a metal that is used and recycled a lot. Cans are products that contain more aluminum, and their daily consumption is also relatively high. Most of the recycling of aluminum materials comes from cans. Of course, there are other ways to recycle aluminum materials besides cans. So how does the recycling process of waste aluminum and waste aluminum work?
1. Collect aluminum scrap
Like every recycling activity, the stage of aluminium recycling is collection. This stage involves collecting scrap aluminium material from various places. Usually the collected material will include aerosol cans, beverage cans and foil trays, some of which may have specific rules for recycling. , these materials can also be collected through garbage collection centers.
2. Sort
The next stage is sorting, the reality is that most piles will contain mixed materials, that is to say, aluminum material is found in a pile of scrap and recycled, so it becomes important to distinguish between these materials, the recovered material They are sent to a material recovery facility where, after separation, they are sorted, cleaned and compressed into large bales.
3. Chopped
The next stage is shredding the aluminium bales, which is done in the processing plant where they are transported in bundles, where the bales go to an industrial shredder to cut them into small pieces.
The purpose of this stage is to ensure that it is easier for the bale to lose all coatings and paints that are usually used for decoration and protection, plus it is easier to do the melting work after shredding.
4. Decoating
At this stage, only aluminum is left, but now aluminum cannot be directly put into the furnace, because there are coatings on it, so a special decoating machine is used to remove the surface coating of scrap aluminum materials.
A decoater works by blowing hot air over the shredded pieces, and in turn, any paint, ink, or paint evaporates at once, then removes the hot air from the pile.
5. Melt
In this step the unsteeled and uncoated aluminium is transferred to a furnace at 7000°C and then other chemicals are used inside the molt to ensure it maintains the correct composition; this in turn makes All debris impurities float on top, after which these impurities need to be removed by special scraping tools.
6. Transfer to the holding furnace
Now, the molten aluminum goes into the holding furnace, where the aluminum material is held upright until it is ready to be turned into a steel ingot, and the holding furnace periodically pours the aluminum into the mold, it is important to note that each block or ingot contains Waste bottle material from as many as 1.6 million cans of beverages.
7. Ingot transportation
Once this process is complete, the sorting and smelting of scrap recycling is over, where the ingot is lifted using its top blank, and the ingot forms a queue, where it waits to be transported to the rolling mill.
The steps of the waste aluminum recycling and processing process are the above. The recycling and reuse of waste aluminum materials by renewable resource recycling manufacturers are indispensable for sorting, chopping, smelting and other steps. This is to better extract aluminum materials, Refining high-quality aluminum materials makes our aluminum materials more recyclable.
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