This product is a specialized cordierite-mullite refractory material for honeycomb ceramic regenerators. Manufactured from high-purity corundum and mullite as primary raw materials, it is precision-engineered through advanced molding processes and high-temperature sintering technology. The product exhibits high refractoriness, exceptional thermal shock stability, strong erosion resistance, and efficient thermal energy storage and release capabilities. Designed specifically for regenerators in regenerative combustion systems (e.g., RTO, RXN), it significantly enhances thermal efficiency and reduces energy consumption.
Product Features
1. Ultra-High Refractory Performance
- Refractoriness ≥ 1790°C, maximum service temperature up to 1650°C.
- High structural strength at elevated temperatures, load softening temperature ≥ 1700°C.
2. Excellent Thermal Shock Stability
- Withstands frequent thermal cycling (≥30 cycles, 1100°C ↔ water cooling) without cracking or spalling.
3. High Thermal Storage Efficiency
- Honeycomb structure with high specific surface area significantly improves heat exchange efficiency.
- Combines low thermal conductivity with high specific heat capacity for rapid heat storage and release.
4. Superior Chemical Erosion Resistance
- Strong resistance to acidic/alkaline flue gases and metal oxides.
5. Long Service Life & Low Maintenance
- Resistant to scouring and corrosion, extending service life by over 50% compared to conventional materials.
- Regenerative Thermal Oxidizers (RTO), regenerative heating furnaces
- Regenerators in steel and non-ferrous metallurgy industries
- Waste heat recovery systems in glass kilns and ceramic kilns
- High-temperature flue gas treatment equipment in chemical industries
| Parameter | Unit | Value |
| Al₂O₃ Content | % | ≥ 85 |
| SiO₂ Content | % | ≤ 12 |
| Fe₂O₃ Content | % | ≤ 0.5 |
| Bulk Density | g/cm³ | 2.75–2.95 |
| Apparent Porosity | % | ≤ 18 |
| Cold Crushing Strength | MPa | ≥ 90 |
| Thermal Conductivity (1000°C) | W/(m·K) | ≤ 2.5 |
Product Specifications
- Standard Dimensions: 150×150×150mm, 150×150×300mm (customization available)
- Cell Structure: Square cells, hexagonal cells, cell density 100–400 CPSI (cells per square inch)
- Custom Designs: Support for special-shaped cells and gradient cell structures to meet varying flow field requirements.
6. Installation & Usage Guidelines
1. Ensure uniform gaps between regenerators and furnace walls during installation, filling with high-temperature sealing materials.
2. Follow a controlled heating curve during initial startup to avoid thermal shocks.
3. Regularly inspect for ash accumulation and clean surfaces with compressed air or soft brushes if necessary.
7. Packaging & Storage
- Packed in shock-proof wooden crates with foam lining to ensure transport safety.
- Store in a dry, ventilated environment away from chemicals.
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