Magnesia alumina spinel brick is a high-strength composite refractory brick. Due to its excellent properties, this refractory brick is suitable for the upper and lower transition zones of cement rotary kilns and other kiln equipment that requires high temperature resistance and thermal shock resistance.
Basic Parameters of Magnesia Alumina Spinel Brick
The following data is based on the Chinese Refractory Industry Standard. If you need to customize the characteristics, composition, size or other aspects of spinel bricks, please contact Kerui for a one-to-one solution!
| Item | Index | |
|---|---|---|
| MgO, % | ≥ | 80 |
| Al2O3, % | ≥ | 10 |
| Apparent Porosity, % | ≤ | 17 |
| Bulk Density, g/cm³ | ≥ | 2.9 |
| Cold Crushing Strength, MPa | ≥ | 50 |
| High-temperature Bending Strength (1350℃*0.5h), MPa | ≥ | 3.5 |
| Thermal Shock Resistances (1100℃, Water Cooling), Cycle | ≥ | 12 |
Classical Application of Magnesia Spinel Brick
Cement Rotary Kiln
The magnesia spinel bricks is mainly used in cement kiln linings. As we mentioned earlier, the cement clinker will react with the surface of magnesite bricks to form an effective anti-stripping protective coating.
Other High Temp Kiln Linings
As a new type of composite refractory brick, magnesia alumina spinel refractory materials are suitable for high temperature kilns with strong resistance to thermal shock and alkaline clinker erosion. Therefore, classical applications of this product also include non-ferrous metal smelting furnaces, such as steel nickel furnaces and aluminum smelting furnace linings, electric furnace covers, steel drum linings, steel refining vacuum treatment equipment linings, high-temperature belt linings in cement calcination kilns, steel storage chambers in open hearth furnaces, and lattice bricks in glass furnace heating chambers.
Excellent Properties of Magnesia Alumina Spinel Brick
Good Thermal Shock Resistance
The combination of magnesium oxide and alumina spinel can maintain a stable structure under rapid temperature changes. This means that when faced with temperature fluctuations, the expansion and contraction changes of this product are relatively uniform, which can effectively maintain the stable operation of the kiln.
Strong Anti Peeling Property
The surface of the magnesia alumina fire brick reacts with the high-temperature clinker and forms a protective layer of calcium aluminate on the surface. Therefore, it is difficult for the chemical liquid phase to erode the lining. The anti-peeling performance of this brick is particularly reflected in the use of cement kilns.
Environmentally Friendly Production
The new magnesia-alumina spinel brick is an ideal substitute for magnesia-chrome bricks. Because traditional magnesia -chrome bricks used in cement kilns will produce Cr6+ that is harmful to the human body. Kerui magnesia alumina spinel bricks use environmentally friendly materials and advanced production processes, which meet the needs of sustainable development.
Magnesia Alumina Spinel Brick Manufacturer in China
Professional Guidance
As a leading magnesia alumina spinel brick manufacturer in China, we maintain professional attitude in producing high-quality refractory materials. Kerui professional engineers provides comprehensive guidance to ensure that you choose the right magnesia brick for your specific needs. Kerui Refractory is always here to help you make correct decisions.
Automatic Magnesia Spinel Brick Production Line
To meet the growing demands, Keuri adopts state-of-the-art automatic production line. Therefore, there is guarantees for precision and consistency. The automated process enhances production efficiency. Therefore, Kerui offers a stable supply for customers.
Rich Project Experience
With 20+ years of experience in high temperature industry, Kerui has rich project experience in manufacturing magnesia alumina spinel bricks. As a result, you can enjoy professional solution and cost-effective products from Kerui factory! Step into Kerui factory through the YouTube video.
Considerate Service
Kerui aims to customer satisfaction extends beyond manufacturing. We provide considerate service throughout the entire process, from initial consultation to post-purchase support. As a trusted magnesia alumina spinel brick manufacturer in China, we prioritize your needs and strive to exceed your expectations with every interaction.