Magnesia Zirconia Bricks for cement kiln are high-performance refractory materials specifically designed for cement kiln firing zones and glass kiln regenerators. These bricks feature a compact structure, low porosity, uniform composition, and excellent high-temperature strength. With superior thermal shock resistance, strong resistance to alkaline atmospheres and slag corrosion, and excellent kiln coating adhesion, magnesia zirconia bricks enhance furnace durability, reduce maintenance frequency, and improve operational efficiency.
Technical Specifications
| Item | MZ8 | MZ10 | MZ13 |
|---|---|---|---|
| MgO (%) | ≥80 | ≥75 | ≥70 |
| ZrO₂ (%) | ≥8 | ≥10 | ≥13 |
| Apparent Porosity (%) | ≤19 | ≤18 | ≤18 |
| Bulk Density (g/cm³) | ≥2.95 | ≥3.0 | ≥3.05 |
| Cold Crushing Strength (CCS, MPa) | ≥50 | ≥45 | ≥40 |
| Refractoriness Under Load (0.2 MPa, ℃) | ≥1600 | ≥1550 | ≥1600 |
| Thermal Shock Resistance (TSR, Cycle 950℃, Air) | ≥10 | ≥10 | ≥10 |
Key Features
High-Temperature Strength – Maintains structural integrity at extreme kiln temperatures.
Excellent Thermal Shock Resistance – Withstands rapid heating and cooling cycles.
Alkaline Slag Resistance – Strong resistance against alkaline atmospheres and slag corrosion.
Compact Structure & Low Porosity – Reduces wear and improves brick longevity.
Good Kiln Coating Hanging Performance – Minimizes coating loss and improves kiln efficiency.
Typical Applications
Firing zones of cement kilns.
Regenerators of glass kilns.
Hot spots in industrial high-temperature furnaces where alkaline slag resistance is required.
Lining areas requiring long service life and high thermal stability.
Production Details
Raw Materials:
High-purity magnesia as the main refractory base.
Zirconia for enhanced high-temperature strength and chemical resistance.
Optional additives for improving porosity, thermal shock, and kiln coating adhesion.
Manufacturing Process:
Shaping under high pressure to achieve dense structure.
Sintering at high temperatures for excellent performance under load.
Strict quality control at each stage to meet technical specifications.
Packing and Shipping Details
Packaging: Standard export wooden pallets with protective film.
Labeling: Product name, grade, batch number, and net weight on each pallet.
Shipping: Available via sea or rail, with flexible logistics solutions.
Delivery Time: Typically 15–30 days depending on order quantity.
Supply Ability: Large-scale production to meet bulk orders for industrial applications.
Frequently Asked Questions (FAQ)
Q1: What is the service life of magnesia zirconia bricks in cement kilns?
Typically ranges from 12–24 months depending on kiln operation conditions.
Q2: Can the bricks be customized for specific kiln designs?
Yes, we can produce custom shapes and sizes according to your drawings and technical requirements.
Q3. What advantages does zirconia provide?
Zirconia enhances high-temperature strength, thermal shock resistance, and resistance to alkaline slag corrosion.
Q4: Do you provide quality certificates and test reports?
Yes, including ISO certificates, test reports, and production quality documentation.
Q5: Do you provide installation support?
Yes, Xintai offers guidance on installation and furnace lining design for optimal performance.
