What are the differences between high-strength alkali-resistant bricks and clay bricks?
The firing temperature of high-strength alkali-resistant bricks and clay bricks is the same as the pressed brick process, but the difference between these two bricks is that the raw material process is different, and the sintering temperature and sintering time are also different. High-strength alkali-resistant bricks have strong alkali resistance, while clay bricks are a slightly acidic product and have strong resistance to acid erosion. It is refractory brick with two completely different atmospheres. Alkali-resistant bricks are mainly used in cement rotary kilns, and clay bricks are widely used.
High-strength alkali-resistant bricks should be added with a certain proportion of high-voltage porcelain, silica, bauxite particles and powder, stirred, pressed with a brick press, and then sintered at a certain temperature. Adding an appropriate proportion of electric porcelain can improve the alkali resistance and strength of alkali-resistant bricks. The addition amount of high-voltage electric porcelain is 20%, and the addition amount of waste silica brick powder or silica powder is 10%. The high-strength alkali-resistant bricks produced have high strength, low porosity, thermal shock resistance, alkali resistance and fatigue resistance, and can better meet the needs of use.
Clay bricks are made from bauxite particle gradation and clay powder. It is made by the high-pressure mechanism of the brick press and high-temperature sintering. Clay bricks are mainly made of mullite, cristobalite and glass. Their content determines the properties of clay bricks. The composition and impurity content of clay vary depending on its origin. The composition of clay bricks varies greatly. At present, some waste bricks are added to the clay bricks produced on the market, and the fluctuation range is relatively stable.
High-strength alkali-resistant bricks are used in preheaters, decomposition furnaces and tertiary air ducts for cement rotation. These parts require high-strength alkali-resistant bricks with high strength, low porosity, good thermal shock resistance and excellent alkali resistance. Clay bricks are suitable for various industrial furnace linings. Compared with alkali-resistant bricks, it has a wide range of applications and a large proportion of use.
