After treatment, the aluminum ash produced by smelting still contains a small amount of aluminum, and the rest is mainly aluminum trioxide and residue. Waste aluminum ash can be used to produce aluminum sulfate, aluminum powder and basic aluminum chloride.
As the main by-product of aluminum industry, aluminum ash is produced in all aluminum smelting processes, and the aluminum content accounts for about 1~ 12% of the total loss of aluminum production and use.
Because the aluminum ash treatment method is a dry system, it produces a lot of dust. Therefore, the whole system needs to be sealed, equipped with dust cover and cyclone to ensure the normal working environment.
It can also be connected with hot ash treatment to improve efficiency. The treated aluminum particles can be directly used for smelting. Aluminum ash can be used as raw material to produce aluminum chloride series water purification agents, so that waste aluminum can be recycled and used to the best of its ability. Or use the treated aluminum ash as binder instead of cryolite as raw material for electrolytic aluminum. Throughput varies depending on the configured machine.
Extended data waste hazards:
(1) Destroy the ecological environment. Under the long-term infiltration and diffusion of rainwater and groundwater, hazardous wastes discharged and stored will pollute water and soil and reduce the environmental function level of the region.
(2) affecting human health. Hazardous waste causes poisoning through ingestion, inhalation, skin absorption and eye contact, or causes dangerous events such as burning and explosion; Long-term hazards include long-term poisoning, carcinogenesis, teratogenesis and mutation caused by repeated contact.
(3) Restrict sustainable development. Air, water and soil pollution caused by untreated or irregular treatment and disposal of hazardous wastes will also become the bottleneck restricting economic activities.
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