Alkali Resistance Bricks Introduce
Alkali-resistance brick is a kind of low alumina brick, the Al2O3 content is 30-25%, the main material is low alumina refractory clay, it is a kind of silica-alumina series refractory products with good alkali erosion resistance performance in cement kiln system.
Alkali Resistance Bricks Technical Data
| Items |
Ordinary Type |
High-strength type |
Insulation type |
Vault type |
| Al2O3 % |
25-30 |
25-30 |
25-30 |
30-35 |
| Fe2O3 % |
2 |
2 |
2 |
2 |
| SiO2 % |
65-70 |
65-70 |
60-70 |
60-65 |
| Refractoriness (°C) |
1650 |
1650 |
1650 |
1710 |
| Bulk Density g/cm3 ≥ |
2.15 |
2.25 |
1.65 |
2.2 |
| Apparent Porosity % ≤ |
21 |
20 |
35 |
21 |
| Cold Crushing Strength MPa≥ |
35 |
60 |
15 |
35 |
| Refractoriness Under Load °C ≥ |
1350 |
1300 |
1250 |
1400 |
| thermal conductivity W/m. (350°C±10°C)TC |
1.28 |
1.28 |
0.7 |
1.28 |
| Application |
Large and medium dry-process kiln,decomposing furnace, etc. |
Application of Alkali Resistance Bricks
1. Preheater equipment
2. Metallurgy furnace
3. Transfer zone of cement rotary kiln
4. Burning zone of cement rotary kiln
5. Other thermal equipment
