What is the reason for slag falling around the three-phase electrode in the process of ferronickel electric furnace smelting?

1. Charge reaction: Nickel-iron electric furnaces usually use nickel-iron ore and other metal ores as raw materials. In the smelting process, when the burden reacts with arc and high temperature, gas and slag will be produced. These gases and scum will rise through the liquid metal layer above the surface of the charge, and when they come into contact with air, they will react chemically to form bubbles and scum.

2. Gas emission: The gas generated in the smelting process will be discharged through the exhaust system at the top of the furnace. When the gas passes through the liquid metal layer, it will carry some slag, which will make the slag rise from the liquid metal layer and splash out.

3. Stirring: In the process of electric furnace smelting, mechanical or gas stirring devices are usually used to promote the mixing and homogenization of liquid metal in the furnace. Stirring may cause slag on the surface of liquid metal to be stirred and splashed out.

4. Arc movement: The arc in the electric furnace usually moves on the surface of liquid metal, which may cause slag to splash out when it is excited by the arc.