Anti-stripping high alumina brick

Characteristics and uses of anti-stripping high alumina brick

Anti-stripping high-alumina brick definition: It is made of high-alumina bauxite mixed with ZrO2-containing zircon sand as raw materials, prepared according to the established mass percentage, and made of bricks by high-pressure molding by an 800-ton press, and then subjected to high temperature The fired products of tunnel kiln at high temperature, anti-stripping high-alumina bricks have strong anti-stripping ability and good resistance to alkaline salt erosion. There are two types of anti-stripping high-alumina bricks produced by our company: traditional anti-stripping high-alumina bricks ZrO2 is not included in the zirconia) model code is KBL-70; the new type of anti-stripping high alumina brick, including ZrO2, the model code is KBL-70G; its microstructural characteristics determine the anti-stripping performance, there are obvious surrounding ZrO2 aggregates. Micro-cracks, the aggregate and surrounding corundum and mullite have obvious gap peeling, and the above structure of anti-stripping high-alumina bricks will dissipate energy when under stress, and improve thermal stability and high-temperature strength.

Anti-stripping high-alumina bricks have good kiln skin performance and kiln skin stability. It is easy to hang the kiln skin with anti-stripping high alumina bricks with a thickness of 200mm. The bonding force between the kiln skin and the brick is strong, easy to hang and not easy to fall off, which is conducive to the maintenance of the kiln skin. The temperature of the kiln body is basically around 300. This is mainly because the Al2O3 content in high-alumina bricks is as high as 80%, which reacts with CaO in the clinker to form C3A, which adheres to the surface of the fire bricks and combines with the fire bricks to form a solid whole at high temperature, which enhances the kiln skin and fire bricks. Binding force. This is also reflected in the kiln skin.