Electric Arc Furnace and Submerged Arc Furnace

Electric arc furnace and submerged arc furnace: both are essential electric furnaces in the metal smelting industry.

1. Properties:

1） Electric arc furnace:

It is an electric furnace that smelts ores and metals at high temperatures generated by electrode arc.

2.）Submerged arc furnace:

Submerged arc furnace is an industrial electric furnace with huge power consumption, also known as electric arc furnace or resistance electric furnace.

2. Features:

1）Electric arc furnace:

When the gas discharge forms an arc, the energy is very concentrated, and the temperature of the arc zone is above 3000 °C.

The electric arc furnace is more flexible than other steelmaking furnaces, can effectively remove impurities such as sulfur and phosphorus. The furnace temperature is easy to control, and the equipment occupies a small area.

2）Submerged arc furnace:

The characteristic of Submerged arc furance is to use carbonaceous or magnesia refractory material as furnace lining and use self-cultivation electrode. The electrode is inserted into the charge for submerged arc operation, using the energy and current of the arc to pass through the charge, and generating energy due to the resistance of the charge to smelt metal, feeding continuously, intermittently tapping iron slag, an operates continuously industrial electric furnace

The electric arc furnace is composed of furnace cover, furnace door, tapping groove and furnace body. The furnace bottom and wall are built with basic refractory materials or acid refractory materials.

Electric arc furnaces can be divided into three-phase furnaces, consumable furnaces, single-phase furnaces and resistance furnaces according to the arc form.

Electric arc furnaces are also divided into regular power furnaces, high power furnaces and ultra-high power furnaces according to the transformer capacity of furnace capacity.

Electric arc furnaces used in steelmaking industry can be divided into three categories:

First Type：Direct heating type.

The arc occurs between the special electrode rod and the smelted charge, and the charge is directly heated by the arc. Mainly used for steelmaking, and secondly for smelting iron, copper, refractory materials, refining molten steel, etc.

Second type：Indirect heating type.

The arc occurs between two special electrode rods, and the charge is subjected to the radiant heat of the arc, which is used to smelt copper and copper alloys.

Third type：Submerged arc furnace

It uses ore with high resistivity as raw material, during the working process, the lower part of the electrode is generally buried in the charge, not only use the heat generated by the resistance of the charge when the current passes through the charge, but also generated by the arc between the electrode and the charge.

So the submerged arc furnace is a kind of electric arc furnace.

Morkin Carbon can provide conductive material used in electric arc furnace and submerged arc furnace, graphite electrode & electrode paste. If you need graphite electrode and electrode paste, pls contact: [email protected], whatsapp/wechat: 008613213028650.