Xintai Refractory’s corundum mullite bricks for waste incinerator lining are premium-grade, high-alumina refractory bricks designed specifically for waste incinerator lining. Combining superior thermal stability, high mechanical strength, and excellent corrosion resistance, these bricks are ideal for industrial waste-to-energy furnaces and other high-temperature applications. With optimized alumina content and low iron impurities, our corundum mullite bricks ensure long service life, consistent performance, and reduced maintenance costs, making them the preferred choice for industrial-scale waste incineration projects worldwide.
Technical Specifications
| INDEX | 88 | 85 | 80 | 75 |
|---|---|---|---|---|
| Al₂O₃ (%) ≥ | 88 | 85 | 80 | 75 |
| Fe₂O₃ (%) ≤ | 0.8 | 1.0 | 1.0 | 1.2 |
| Apparent Porosity (%) ≤ | 15(17) | 16(18) | 18(20) | 18(20) |
| Bulk Density (g/cm³) ≥ | 3.00 | 2.85 | 2.75 | 2.60 |
| Cold Crushing Strength (MPa) | 100–120 | 80–100 | 80–100 | 60–80 |
| Permanent Linear Change (1600°C×3h) / % | -0.1~+0.1 | -0.1~+0.1 | -0.2~+0.2 | -0.2~+0.2 |
| Refractoriness Under Load (0.2 MPa, 0.6%) / ℃ ≤ | 1700 | 1680 | 1650 | 1650 |
Key Features
High Alumina Content: Available in 75%–88% Al₂O₃ grades for superior heat resistance.
Excellent Thermal Stability: Minimal permanent linear change at 1600°C ensures dimensional stability.
High Mechanical Strength: Cold crushing strength ranges from 60–120 MPa, supporting heavy-duty furnace operations.
Corrosion & Wear Resistance: Resistant to slag, chemical attack, and mechanical erosion in waste incinerators.
Consistent Quality: Manufactured under strict quality control for uniform performance.
Energy Efficiency: Reduces heat loss and enhances furnace efficiency due to optimized density and thermal properties.
Typical Applications
Waste-to-energy incinerators and municipal solid waste furnaces
Industrial waste incineration plants
High-temperature furnace lining requiring chemical and mechanical durability
Cement, chemical, and metallurgical industries for corrosive flue gas environments
Any industrial furnace application demanding high alumina content and long service life
Production Details
Xintai Refractory employs advanced extrusion and pressing techniques, followed by high-temperature firing to produce corundum mullite bricks with superior homogeneity and low porosity. Each brick undergoes strict quality inspections, including:
Alumina content verification
Apparent porosity and bulk density measurement
Cold crushing strength testing
Permanent linear change analysis at 1600°C
Refractoriness under load evaluation
Our controlled production process guarantees bricks with excellent thermal shock resistance, uniform dimensions, and long-term performance in extreme industrial environments.
Packing and Shipping Details
Packing: Standard wooden pallets or customized bulk packaging for safe transport
Protection: Bricks wrapped in moisture-resistant kraft paper or shrink film
Shipping: Suitable for ocean, rail, and road transport
Lead Time: Typically 15–25 days depending on order quantity
Customization: Pallet and packaging solutions available to meet industrial project requirements
Frequently Asked Questions (FAQ)
Q1: What is the maximum operating temperature for Xintai corundum mullite bricks?
Depending on the grade, bricks can withstand up to 1700°C under load, ensuring reliable performance in high-temperature waste incinerators.
Q2: Can these bricks be used in corrosive flue gas environments?
Yes, the high alumina content and low Fe₂O₃ level provide excellent resistance to chemical corrosion and slag attack.
Q3. Are custom sizes available for industrial projects?
Yes, Xintai Refractory can provide bricks in customized dimensions to suit specific furnace designs.
Q4: How is the quality of each batch ensured?
Every batch undergoes rigorous testing for bulk density, porosity, cold crushing strength, permanent linear change, and refractoriness under load.
Q5: What is the typical delivery time for bulk orders?
Standard lead time is 15–25 days, depending on order size and shipping method.
