Tasks and operations during the melting period of the electric furnace

 

Electric furnace steelmaking uses electric energy as the main heat source and uses three-phase alternating current or direct current. An electric arc is generated directly between the charge and the electrode, and the charge is melted at a high temperature by the electric arc, and then an oxidizer, slag-forming agent, ferroalloy, etc. are added to remove inclusions. The chemical composition and temperature of the molten steel are adjusted to the specified values and then injected into the ladle. Since the 1980s, electric furnaces have developed in the direction of large-scale, ultra-high power, direct current, continuity and automation, and the world's electric furnace steelmaking production technology has developed more rapidly.

Electric furnace melting period
The melting period of the traditional smelting process accounts for 50% to 70% of the entire smelting time, and electricity consumption accounts for 70% to 80%. Therefore, the length of the melting period affects productivity and power consumption, and the operation of the melting period affects the smoothness of the oxidation period and the reduction period.
(1) The main tasks of the melting period
The massive solid charge is quickly melted and heated to the oxidation temperature;
Slagging in advance, dephosphorization at an early stage, reducing the gas inhalation and volatilization of molten steel.
(2) Operation during the melting period

Reasonable power supply, timely oxygen blowing, and slagging ahead of time.

Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc.

Article Source:Tasks and operations during the melting period of the electric furnace

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