Magnesia-alumina spinel bricks
MgO: ≥85 / 86
Fe₂O₃: ≤0.8 / 0.7
Al₂O₃: 11-13 / 10-12
SiO₂: ≤0.7 / 0.5 / 0.35
CaO:≤1.3 / 1.1 / 0.95
- Commodity name： Magnesia-alumina spinel bricks
Description
Introduction
☆ Magnesia alumina spinel brick is a kind of alkaline refractory product with periclase as main phase and magnesia-alumina spinel clinker as basic material. The product is of good temperature vibration, good strength and volume stability in high temperature environment.
☆ Magnesia-aluminum spinel brick is a new type of refractory material made by replacing magnesia-chrome spinel in magnesia-chrome brick with magnesia-alumina spinel. It is a series of crystals with the same structure as magnesia-alumina spinel MA. Magnesia-aluminum spinel bricks have excellent characteristics such as low porosity, high strength, good thermal shock stability, and erosion resistance. This product enables the simultaneous consumption of materials in the transition zone and the firing zone, and improves the service life of the rotary kiln lining.
☆ Low ASR, strong alkali resistance, strong resistance to alkali salt penetration, chromium-free and low iron, can effectively solve the common chemical damage of cement kilns, ensure the efficient and safe operation of cement kilns, and achieve the purpose of saving energy, reducing consumption and saving costs.
☆ We can provide different types of magnesia alumina spinel bricks to meet the needs of different cement kilns.
Features
Application area
Magnesia-alumina spinel bricks
ZJMA-6 bricks apply to lime kiln and 2500-5000t/d CRK
ZJMA-7 bricks apply to 5000-7500t/d CRK
ZJMA-8 bricks apply to over 7500t/d CRK
Suppliers
ZHENJIN REFRACTORIES is a professional magnesia-alumina spinel bricks supplier. After 38 years' of hardworking and development, it has bacome a comprehensive enterprise producing refractory materials in cement, nonferrous, steel, lime, building materials and metallurgical industries.
The company actively responds to the requirements of global green development, and continues to develop and apply energy-saving, environmentally friendly, functional and efficient refractory materials. Introduce desulfurization and denitrification equipment, adhere to green development, adopt automated production, and realize intelligent manufacturing.
Why Choose Us?
1. Unique location. ZHENJIN REFRACTORIES is located in the refractory capital of China. It is a place rich in high-quality materals, which provides reasonable conditions for the production of refractory materials.
2. 38 Years of Experience In the Cement Kiln ining Refractory Industry, Factory Supply!
3. Green intelligent production. The company pays attention to green development, introduces desulfurization and denitrification equipment, adheres to green production and kiln transformation, and realizes energy saving and consumption reduction.
4. Strict quality control. The whole line adopts automatic production, automatic batching, molding and sintering to ensure the stable quality of each brick.
5. Packaging and delivery. Wooden pallets with plastic film or according to customer's request, strong packing protects the goods from any possible damage during transit.
Service
Technique Data
| Brand | ZJMA-6 | ZJMA-7 | ZJMA -8 | |
| Chemical Composition wt% |
MgO | ≥85 | ≥86 | ≥86 |
| Fe₂O₃ | ≤0.8 | ≤0.7 | ≤0.7 | |
| Al₂O₃ | 11-13 | 10-12 | 10-12 | |
| SiO₂ | ≤0.7 | ≤0.5 | ≤0.35 | |
| CaO | ≤1.3 | ≤1.1 | ≤0.95 | |
| Bulk Density, g/cm³ | ≥2.95 | ≥2.97 | ≥3.0 | |
| Apparent Porosity, % | ≤16 | ≤16 | ≤16 | |
| Cold Crushing Strength MPa |
≥65 | ≥65 | ≥65 | |
| Refractoriness under Load, ℃ (0.2MPa, t0.6) |
≥1700 | ≥1700 | ≥1700 | |
| Thermal Shock Test, Cycle (1100℃, water quenching) |
≥12 | ≥12 | ≥12 | |
Application
Key words:
Magnesia-alumina spinel bricks
Case
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SINCE 1985
Zhengzhou Zhenjin Refractories Co., Ltd.
Zhengzhou Zhenjin refractory material CO., Ltd. ( hereafter: ZHENJIN REFRACTORIES ) founded in 1985, is located in Xinmi City, Henan Province of China. ZHENJIN REFRACTORIES is a refractory-manufacturing enterprise integrating research and development, production, sales, international trade and technical services. The company is committed to cement industry, glass industry, non-ferrous smelting and steel & iron industry to provide products, construction and installation and tailor services.
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