Andalusite Brick
【Product Introduction】
Andalusite brick is a high-performance refractory brick made of natural andalusite as the main raw material. It is widely used in high-temperature furnace lining environments such as cement rotary kilns, ladles, and non-ferrous metal smelting furnaces.
Technical Index of KERUI Andalusite Brick
| Item/Grade | RH-155 | RH-150 | RH-145 | RH-140 | RH-135 | RH-130 | |
| ω (Al2O3)/% | μ0 ≥ | 69 | 65 | 61 | 57 | 53 | 49 |
| σ | 1.5 | ||||||
| ω (Fe2O3)/% | μ0 ≥ | 1.0 | 1.0 | 1.2 | 1.2 | 1.5 | 1.5 |
| σ | 0.1 | ||||||
| ω (TiO2)/% | μ0 ≥ | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 |
| σ | 0.1 | ||||||
| Bulk Density (g/cm³) | 2.50-2.70 | 2.45-2.65 | 2.45-2.60 | 2.40-2.55 | 2.35-2.50 | 2.30-2.45 | |
| Apparent Porosity/% | μ0 ≤ | 20 (22) | 20 (22) | 20 (22) | 20 (22) | 20 (22) | 20 (22) |
| σ | 1.5 | ||||||
| Cold Crushing Strength/MPa | μ0 ≥ | 55 (50) | 55 (50) | 50 (45) | 50 (45) | 40 (35) | 40 (35) |
| Xmin | 45 | 45 | 40 | 40 | 30 | 30 | |
| σ | 15 | 15 | 12 | 12 | 10 | 10 | |
| 0.2MPa Refractoriness Underload/℃ | μ0 ≥ | 1700 | 1700 | 1650 | 1600 | 1520 | 1450 |
| σ | / | / | 10 | 10 | 15 | 15 | |
| Permanent Linear Change/% | 1500℃*2h ±0.2 |
1500℃*2h ±0.2 |
1500℃*2h ±0.2 |
1450℃*2h ±0.2 |
1450℃*2h ±0.2 |
1450℃*2h ±0.2 |
|
【Product Features】
Durable
Andalusite brick uses ≥98% high-purity andalusite, with a Mohs hardness of 7.5 or above and a service life of more than 5 years.
Accurate Dimensions
After CNC processing, the dimensional tolerance is controlled within ±0.2 mm.
Good Corrosion Resistance
Andalusite brick is formed by high pressure and sintered at high temperature, and its internal structure is dense, which can effectively prevent the penetration of corrosive materials.
【Frequently Asked Questions】
Q: Where are andalusite bricks mainly used?
A: Andalusite bricks are mainly used for high-temperature kiln linings in the steel, ceramic, glass and other industries. They can also be used in thermal equipment such as hot blast furnaces and heating furnaces.
Q: How to clean andalusite bricks?
A: To clean andalusite bricks, you can use a dry brush to clean the surface dust. If there are stains, just wipe it gently with a wet cloth. Do not use chemical cleaners.
Q: What are the key points for installing andalusite bricks?
A: When installing andalusite bricks, ensure that the brick joints are even, use high-temperature resistant mortar to bond, avoid violent collisions during masonry, and ensure that the overall structure is firm.
Q: What should be paid attention to when transporting andalusite bricks?
A: When transporting andalusite bricks, they should be fixed with pallets. Do not stack them too high to prevent vibration and breakage. Take rain and moisture-proof measures on rainy days.
Q: What are the requirements for storing andalusite bricks?
A: Andalusite bricks should be stored in a dry and ventilated warehouse, away from water sources and humid environments. The stacking height should not be too high to prevent the bottom bricks from being crushed.
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