Brief Introduction
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.
Technical Datas
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
1. Preheater equipment
2. Metallurgy furnace
3. Transfer zone of cement rotary kiln
4. Burning zone of cement rotary kiln
5. Other thermal equipment
Related Product
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