Silica Brick for Coke Oven

Uses: widely used in coke oven regenerators, chutes and combustion chambers

Silica bricks are mainly acid refractory materials composed of tridymite, cristobalite and a small amount of residual quartz and glass phases.

Xüsusiyyətləri:

The silica content is above 94%. The true density is 2.35g/cm3. It has resistance to acid slag erosion. Higher high temperature strength, starting temperature of load softening is 1620～1670℃. It will not deform after long-term use at high temperature. Low thermal shock stability (1~4 times of heat exchange in water) Natural silica is used as raw material, and a proper amount of mineralizer is added to promote the conversion of quartz in the green body into phosphorite. Slowly fired at 1350～14 30℃ under reducing atmosphere. When heated to 1450℃, there will be about 1.5~2.2% of the total volume expansion. This residual expansion will make the cut joints tightly and ensure that the masonry has good air tightness and structural strength. At the same time, it has the advantages of long service life and reduced energy consumption.