Self-flowing refractory castable can be used in CFB boilers and other high temperature furnaces, which can be constructed much easier comparing with common castable.
The high-strength wear-resistant self-flowing castables are made of high-quality bauxite clinker, mullite and fused corundum. The pure calcium aluminate cement, corundum micro-powder and silicon micro-powder are used as binders. Such self-flowing castable has the characteristics of high strength, good thermal shock resistance, abrasion resistance, erosion resistance and strong corrosion resistance.Self-flowing castable has good fluidity and convenient construction. Self-flowing refractory castable can be used in CFB boilers and other high temperature furnaces.
◆The self-flow castable has widely application, especially for blast furnace iron runner, department between stave cooler and blast furnace shell.
◆ Environment friendly
◆ No need vibration and easy to construct to save labor time
◆ Reasonable raw material and size to make sure good fluidity
◆ High strength and high refractoriness
| Items | CH-zlj75 | CH-zlj80 | |
| AL2O3 % ≥ | 75 | 80 | |
| SiO2 % ≤ | 20 | 16 | |
| Bulk density g/cm3 ≥ | 2.6 | 2.7 | |
| Flexural strength/MPa ≥ | 110℃×24h | 7.0 | 8.0 |
| 1100℃×3h | 11 | 12 | |
| Compressive strength/ MPa ≥ | 110℃×24h | 60 | 70 |
| 1100℃×3h | 70 | 85 | |
| Normal temperature wear/ cm3≤ | 8 | 9 | |
| Refractoriness /℃ ≥ | 1790 | 1790 | |
| Thermal shock stability (900℃ ,water-cooling) / times≥ | 20 | 20 | |
| PLC (1000℃×3h) / % ≤ | -0.25 | -0.25 | |
| The self flow value /mm ≥ | 200 | 200 | |
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