Luzhong Magnesia Alumina Spinel Bricks are new developed chrome-free refractories for Cement Rotary Kilns, with excellent performance,our products have been wide used in the domestic and overseas cement projects.
Characteristics:
1.Outstanding resistance to chemical attack
2.Outstanding thermal-shock resistance
3.Highest refractoriness
4.Excellent abrasion resistance
5.Excellent performance under thermal and mechanical loads
Application zone: Transition zone of cement rotary kiln.
Raw Material:
1.Natural, alpine sintered magnesia
2. Alumina-magnesia spinel.
Physical and chemical index
| Chemical composition |
UNIT |
SPEC |
Typical |
| MgO |
% |
≥85 |
85 - 87 |
| Al2O3 |
% |
≥10 |
10 - 11 |
| SiO2 |
% |
|
0.8 |
| Fe2O3 |
% |
|
0.6 |
| CaO |
% |
|
1.0 |
| Physical properties |
UNIT |
SPEC |
Typical |
| Bulk Density |
BD |
g/cm3 |
≥2.9 |
2.9-3.0 |
| Apparent Porosity |
AP |
% |
≤17 |
16 |
| Thermal Shock Resistance |
TSR - in air at 950 °C |
cycle |
≥100 |
100 |
| Refractoriness Under Load |
RUL (ta) |
°C |
≥1700 |
>1700 |
| Thermal Expansion |
TE - at 1000 °C |
% |
|
1.3 |
| Cold Crushing Strength |
CCS |
MPa |
≥45 |
65 |
| Thermal Conductivity |
TC - at 700 °C |
W/mK |
≤3.8 |
3.713 |
| Note: The above datas are the representative average value measured in accordance with the test methods for general purpose and vary with the fluctuations of normal production conditions.These datas are provided as a technical service,sometimes may be adjusted, so they should not be regarded as the product index. |
Production Control
Package
Audited Supplier 
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