High Alumina Lightweight Brick / High Alumina Lightweight Insulation Brick
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Lightweight refractory brick
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Details Introduction
Applicable to pyrolysis furnaces, hot air furnaces, and various resistance furnaces as insulation layers. It is also widely used in various heating furnaces and coking furnaces in the metallurgical industry.
High-alumina lightweight bricks, also known as lightweight high-alumina bricks or high-alumina insulating refractory bricks, are mainly composed of bauxite as the primary raw material, combined with other binders, pressed into shape, and sintered at high temperatures.
The Al₂O₃ content of high-alumina lightweight bricks is greater than 48%, and their main function is to serve as insulation for furnace linings.
High-alumina lightweight bricks are widely used insulating refractory bricks in the market. The characteristics of lightweight high-alumina bricks include high compressive strength, low thermal conductivity, and good insulation performance.
High-alumina lightweight bricks are mainly used in the insulation layer of furnace linings and in areas not subject to strong high-temperature erosion from molten materials. If high-alumina lightweight bricks are used in areas directly in contact with flames, the direct contact temperature of the bricks should not exceed 1350°C.
The structure of high-alumina lightweight bricks is block-shaped insulating refractory material. High-alumina lightweight bricks have good insulation effects and are suitable for use as insulation layers in pyrolysis furnaces, hot air furnaces, and various resistance furnaces. They are also widely used in various heating furnaces and coking furnaces in the metallurgical industry.
| Project |
High-alumina lightweight bricks |
||
| Al₂O₃% |
≥48 |
≥48 |
≥48 |
| Fe2O3% |
≤2.0 |
≤2.0 |
≤2.0 |
| Bulk density g/cm3 |
1.0 |
0.8 |
0.6 |
| Compressive strength at room temperature/MPa |
≥3.5 |
≥2.5 |
≥1.6 |
| Thermal conductivity W.(m.k)% |
≤0.5 |
≤0.35 |
≤0.3 |
Key words:
High Alumina Lightweight Brick / High Alumina Lightweight Insulation Brick
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