Description of corundum lightweight bricks
Corundum insulating bricks KL belongs to the group of lightweight products. Corundum thermal insulation bricks contain more than 90% of alumina and consist mainly of corundum. Corundum lightweight thermal insulation products are used in thermal insulation of thermal and electric furnaces, heat exchange equipment, various types of heaters, roasting and boiler units, various structures.
Characteristics of alumina bubble brick
| Name of indicators | KL-1.3 | KL-1,1 |
|---|---|---|
| Mass fraction, %: | ||
| Al2O3, not less | 95 | 90 |
| Fe2O3, less | 0,3 | 1,0 |
| SiO2, less | 0,5 | - |
| Apparent density g/cm3, less than | 1,3 | 1,1 |
| Compressive strength, N/mm3, not less than | 3,5 | 2,5 |
| Thermal conductivity, W/(m*K), less at temperature °С: | ||
| 350 ± 25 | 0,80 | 0,55 |
| 600 ± 25 | 0,80 | 0,55 |
Advantage of alumina bubble brick
High temperature stability
Corundum Lightweight Brick has a high temperature stability, withstanding prolonged use at high temperatures, up to 1750°C.
Good fire resistance
Corundum Lightweight Brick can maintain structural integrity under high temperature conditions, not easily cracked or deformed, thus ensuring safe operation of equipment.
Low thermal conductivity
Low thermal conductivity, which effectively reduces heat loss.
Application of alumina bubble brick
Area of environmental protection
Lightweight corundum brick is also very widely used in the field of environmental protection. For example, it can be used to produce environmental protection building materials such as environmental protection drainage pipes, anti-fouling gasoline pumps, etc. These products are not only safe and reliable, but also have excellent weather resistance and long-term anti-aging properties.
Industrial furnaces
Lightweight corundum brick can be used for high-temperature and energy-saving (>30%) reverse flame furnaces, shuttle furnaces, molybdenum wire furnaces, tungsten rod furnaces, induction furnaces, nitriding furnaces, etc. By reducing the weight of furnace body, modernizing the design, saving materials and energy, obvious results will be achieved.
Metallurgical industry
Alumina bubble brick is widely used in metallurgical industry. It can be used as filler for furnace walls, thermal insulation, high temperature pipes, furnace walls, etc. It is used to improve the high temperature resistance of equipment and increase the service life of equipment.
Energy industry
Alumina bubble bricks are also widely used in the energy industry. For example, it can be used as a boiler filler in terms of insulation and thermal insulation, which is used to improve boiler efficiency and reduce energy losses.
