What is the electric arc furnace and what are the advantages?

Electric arc furnace is a kind of electric furnace for metal or ore smelting by the heat generated by electric arc. Because arc energy generated by gas discharge is concentrated, the arc zone temperature is above 3000 degrees, so the flexibility of using electric arc furnace for smelting metal is much higher than steel furnace. It can remove sulfur, phosphorus and other impurities and the furnace temperature is easy to control.
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Electric arc furnace covers a small area and suitable for alloy steel melting. The common electric arc furnace can be divided into three-phase arc furnace, self-consumption arc furnace, single-phase arc furnace and other types according to its different forms of arc.

The furnace body of electric arc furnace is mainly composed of furnace cover, furnace door, tapping spout and furnace body. The bottom and wall of the furnace are constructed with some alkaline refractory materials and acid materials.

Electric arc furnace is divided into ordinary power arc furnace, high power arc furnace and ultra-high power arc furnace according to the transformer capacity per ton of furnace capacity.

Electric arc furnace for steelmaking works through the graphite electrode to input electric energy into the arc furnace, the electric arc between the electric extreme part and the charge is the heat source for steelmaking. Electric arc furnace takes electric energy as heat source and it can adjust the atmosphere in the furnace, which is beneficial to smelting steel containing more easily oxidized elements. Shortly after the invention of electric arc furnace for steelmaking, it has been used to smelt alloy steel and has been greatly developed.