The electric arc furnace cover must use high alumina brick to prolong the service life

Electric arc furnace is a kind of using arc heating so as to high-temperature melting furnace metal equipment, but in the melting process, will produce very high temperature especially furnace cover place, while the high temperature also easily lead to cover the damage of electric arc furnace, which we need to do protection work relative to the therefore, we will choose high alumina brick to prolong the service life of electric arc furnace.

In the past the furnace cover mainly uses the silica brick masonry, but because of its refractory degree is not high, poor thermal shock resistance, slag corrosion occurred in droplet and spalling, resulting in shortening the service life. We therefore after changing a began to choose high aluminum brick with excellent performance and high alumina unshaped refractory material, so the service life can be improved, and will be 2 – 3 times higher to silica brick. If it is ultra high power EAF, because working conditions even worse, using firing or caustic soda high aluminum brick, this is because the high temperature strength of refractory brick is low, since the major, for hanging structure. Using direct bonded brick and magnesia chrome brick than ordinary magnesia brick and magnesia chrome brick is good, can greatly reduce the damage caused by thermal cracking structure cracking and spalling.

The above contents cover the, must use high alumina brick to prolong the service life of electric arc furnace in the knowledge that you have some understanding of it, if you want to ask more knowledge about the high aluminum bricks can consult us.