What kind of refractory material will be used in the glass kiln?
5. fused zirconia corundum brick (AZS brick)The chemical composition of the brick is ZrO234%, Al2O349.2%, SiO215.9%. The bulk density is 3.85g/cm3, and the main uses are the melting part, the burner brick and the feeding port brick.6. fused chromium corundum brickThe chemical composition of the brick is Cr2O328.3%, Al2O358.3%, MgO, Fe2O35.2%. The bulk density is about 3.4g/cm3. A flue interface brick that is mainly used at the entrance of the heat exchanger.
3. standard zirconium brickThe content of ZrO2 in the brick is about 66%, and the bulk density is 3.7g/cm3, which has better thermal stability and anti stripping property. The use of erosion serious investment outlet area and after the parapet wall in the powder melting furnace, observation hole brick and pathway of flame space and roof parapet wall brick, brick burner. But there are also AZS burner brick with mullite brick for brick kiln and transition two side clearance brick etc..
2. dense zirconia brickHigh temperature & glass corrosion performance of the brick is slightly lower than that of chromium oxide, also by isostatic pressing forming method, its technical indicators ZrO2>65%, <2.0% porosity, volume density of about 4.25g/cm3, the temperature in E glass is higher than 1370 DEG C have erosion. Used in the E glass melting pool unit kiln glass temperature slightly lower at the end of the transition path, forming the bottom of the pool and forming path path flow tank and bushing support brick etc.. In addition, the dense zirconia brick is used as the backing brick of the dense chrome brick.
1. compact chromium oxide brickIt has the best resistance to high temperature E glass corrosion, its erosion basically does not cause pollution to the glass liquid, so it has become the first choice of E glass unit refractory bricks.Dense chromium oxide is formed by isostatic pressing. Its density is very high. The main technical indexes include Cr2O3 content >94%, porosity <15%, volume density >4.24g/cm3, and erosion loss only 1/10 of compact zirconia brick. Used in the E glass furnace unit kiln, directly contact high temperature molten glass melt, wall, melting parts, high temperature parts, pool bottom, main channel, pool wall and pool bottom, transition channel, pool wall, etc..
