This technology is based on aluminum and silicon contained in fly ash, using electric arc furnace or blast furnace direct extraction of aluminum-silicon alloy. This technology will first fly ash, additives, reducing agents, binders and other materials evenly, rolling into pellets, drying in the electric arc furnace or blast furnace high temperature reduction smelting, to achieve fly ash extraction of aluminum-silicon alloy.
The process is put into operation: firstly, the fly ash is tested to find out the element content; secondly, there is an electric arc furnace with a power of ≥6300 kVA or a blast furnace with a yield of more than 30 tons/hour. A small laboratory is set up to facilitate the inspection and ensure the silicon-aluminum alloy quality. If there are ferrosilicon furnace, calcium carbide furnace, manganese ferromanganese conversion can also be.