PRODUCT DESCRIPTION

Impermeable refractory brick with SiO2≥70%, application as barrier layer of electrolytic aluminum cell，can effectively prevent the immersion and penetration of Na and NaF and prolong the service life of electrolytic aluminum cell.

Description

1.     Description 

Impermeable refractory brick with aluminum silicate mineral and bauxite as main raw material sadding a certain amount of additives and binders, the penetration resistance brick can be used as barrier layer of aluminum electrolysis cell.2),The product has the characteristics of high density, high strength, good heat preservation performance and good permeability resistance.3),0.5% admixture and 5% high-quality clay in product ingredients can improve the strength and impermeability of the product.

2．The main raw materials used in the Impermeable refractory brick are pyrophyllite, bauxite, high-quality clay, calciner and binder.

3．Application parts of products: Aluminum electrolytic cells are generally composed of graphite or silicon carbide working layer, aluminosilicate barrier layer and thermal insulation layer. Anti-permeability brick is the barrier layer, which prevents Na and NaF from penetrating into the thermal insulation layer further.

   TECHNIQUE DATA