Classification and Use of Mullite Brick

Classification and use of mullite brick:

According to the different density, it is divided into light and heavy mullite brick. According to the different use temperature, it is divided into 1350 mullite brick, 1450 mullite brick, 1550 mullite brick

and so on.

The performance and its application of mullite brick:

High refractoriness is higher, can reach up to more than 1790 ℃. Load softening start temperature is 1600 ~ 1700 ℃. Room temperature compressive strength is 70 ~ 260MPa. Thermal shock

resistance is good. There are sintered mullite tiles and fused mullite tiles. Sintered mullite brick with high bauxite clinker as the main raw material, adding a small amount of clay or bauxite as a

binder, formed by firing and made.







Fused mullite brick with bauxite, industrial alumina and refractory clay as raw materials, adding charcoal or coke fine particles as a reducing agent, after forming,  use reduction fused method to

make. The crystallization of the fused mullite is greater than that of the sintered mullite, and the thermal shock resistance is better than that of the sintered product. Their high temperature

performance mainly depends on the alumina content and the homogeneity of the mullite phase with the glass distribution.

Mainly used for hot stove roof, blast furnace and the bottom of the furnace, glass furnace regenerator, ceramic sintering kiln, oil cracking system dead angle lining,etc.