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Cement Industry
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Magnesite Chrome Brick for Metallurgical & Cement Kiln
Core Advantages
Superior Heat Resistance
Maintains structural integrity at temperatures up to 1800°C, resisting thermal shock and deformation even under rapid temperature fluctuations, suitable for high-heat industrial processes.
Strong Corrosion Resistance
Effectively resists erosion from molten slag, metal liquid, and chemical media in metallurgical and cement production, reducing material wear and extending service cycle.
High Mechanical Strength
Dense structure ensures excellent compression and impact resistance, preventing cracking and peeling during long-term operation, lowering replacement frequency.
Cost-Effective Performance
Balances high durability and reasonable cost, reducing overall production costs by minimizing downtime for maintenance and replacement.
Product Parameters
| Item | Magnesia-Chrome Bricks | Magnesia-Zirconia Bricks | ||||
| DMC-20 | DMC-16 | DMC-12 | DMC-8 | MZr-75 | MZr-78 | |
| MgO % | 55 | 60 | 65 | 70 | 75 | 78 |
| SiO₂ % | 1.5 | 1.5 | 2.8 | 3.0 | 10.0 | 8.0 |
| CaO % | / | / | / | / | 2.0 | 1.5 |
| ZrO₂ % | / | / | / | / | 13.0 | 13.0 |
| Cr₂O₃ % | 20 | 16 | 12 | 8 | 2.0 | 3.0 |
| g/cm³ Bulk Density |
3.15 | 3.05 | 3.02 | 2.95 | 3.10 | 3.18 |
| % Apparent Porosity |
16 | 16 | 18 | 18 | 15 | 14 |
| MPa Cold Crushing Strength |
40 | 40 | 40 | 40 | 80 | 100 |
| ℃（0.2MPa,0.6%） Refractoriness Under Load |
1700 | 1700 | 1650 | 1620 | 1600 | 1670 |
| Thermal shock stability （950℃ cooling)times | 20 | 20 | 20 | 20 | 15 | 15 |
Detailed Application Scenarios
1. Cement Industry
◎ Widely used in the burning zone, transition zone, and tertiary air duct of rotary cement kilns. Resists erosion from alkali metals and clinker, ensuring stable kiln operation and improving cement production efficiency.
2. Metallurgical Industry
◎ 2.Applied in steelmaking converters, electric furnace linings, ladles, and tundishes. Withstands molten steel and slag erosion, suitable for primary and secondary steelmaking processes. Also used in non-ferrous metallurgy (copper, aluminum smelting) for furnace linings.
3. Glass Industry
◎ Used in glass melting furnace regenerators and throat parts. Resists high temperature and corrosion from glass liquid, maintaining furnace tightness and extending furnace service life.
4. Other High-Temperature Equipment
◎ Suitable for waste incinerators, chemical reactors, and thermal power plant boilers that operate under extreme heat and corrosive conditions, providing reliable refractory protection.
Conclusion
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