Arc Furnace Used for the Refractory Bricks
Refractory brick for electric furnace is also a refractory brick for electric arc furnace. The electric furnace is divided into a furnace top and a furnace body. The movable furnace cover has three graphite electrode sockets, the furnace body has a furnace wall, a furnace bottom and a discharge port.
High aluminum refractory brick or electric furnace roof prefabricated parts are generally used for refractory bricks for electric furnace tops.
Arc furnace wall is close to the arc and the molten steel pool. Arc furnace is subject to high temperature electric radiation, slag and molten steel splash. The environment is bad, and the atmosphere and temperature in the furnace vary greatly. According to the characteristics of the electric process, the fire wall is generally selected for the furnace wall.
Alkaline refractory bricks, such as
magnesia refractory bricks or
magnesia chrome refractory bricks.
Arc furnace wall slag line area is an important electric furnace wall area. Arc furnace has been eroded by steel slag for a long time. Arc furnace is used to combine alkaline refractory bricks such as magnesia brick and
magnesia carbon brick.
Arc Furnace Used for the Refractory Castable
In the process of steel making, the roof refractory of the electric furnace (the furnace cover) has a high temperature of the furnace cover. When the steel is tapped, the furnace cover is at normal temperature after being removed. The sharp change of temperature requires that the fire resistant bricks of the furnace top have better thermal shock resistance. Prefabricated parts cast from high aluminum castables are generally used, high alumina refractory castable can be directly cast on site or prefabricated by the manufacturer. The high compressive strength under high temperature environment is good, the peeling resistance and slag resistance are good, the construction is convenient, the installation is convenient, and the use effect of the Arc furnace refractroy material is good.
The bottom of the electric furnace is the part that holds the molten steel, which is directly in contact with the molten steel. electric furnace is affected by the impact of the scrap steel and the temperature change for a long time. Generally, the alkaline unshaped refractory material, such as
magnesia ramming mass, magnesia refractory mass is used to resist slag water erosion and erosion resistance. Strong in nature, compact in sintering, long in service life, low consumption per ton of steel, easy to construct.
Arc Furnace Refractory Lining Using Refractory Castable
Corundum spinel refractory castable has the characteristics of high melting point, high strength, low thermal expansion rate and corrosion resistance,Corundum spinel castable is an excellent refractory raw material. Due to refractory castable high temperature performance and high strength, corundum castables are widely used in ladle lining and other refractory fields.
Alumina magnesia refractroy castable is made of high alumina bauxite clinker, the high alumina bauxite clinker and magnesia mixed co milled powder is used as the powder, the water glass is used as the binder. The iron lining and the steel lining are integrally lined.
