Description:
Luzhong Magnesia hercynite 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.Excellent formation of uniform and stable coating
2.Outstanding thermal-shock resistance
3.Excellent resistance to chemical attack
4.Low thermal conductivity (230-280ºC)
Application:
Sintering zone of cement rotary kiln.
Raw Material:
1.Top grade sintered magnesia;
2.High-purity sintered iron alumina spinel (hercynite)
Physical and chemical index
| Chemical composition |
UNIT |
SPEC |
Typical |
| MgO |
% |
≥85 |
85~88 |
| Al2O3 |
% |
≥4 |
4~6 |
| SiO2 |
% |
|
0.8 |
| Fe2O3 |
% |
≥4 |
4~6 |
| CaO |
% |
|
1.3 |
| Physical properties |
UNIT |
SPEC |
Typical |
| Bulk Density |
BD |
g/cm3 |
≥2.9 |
2.9~2.95 |
| Apparent Porosity |
AP |
% |
≤18 |
17 |
| Thermal Shock Resistance |
TSR - in air at 950 °C |
cycle |
≥95 |
100 |
| Refractoriness Under Load |
RUL (ta) |
°C |
≥1650 |
1650-1700 |
| Thermal Expansion |
TE - at 1000 °C |
% |
|
1.2 |
| Cold Crushing Strength |
CCS |
MPa |
≥50 |
60 |
| Thermal Conductivity |
TC - at 700 °C |
W/mK |
≤3.5 |
3.5 |
| 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. |
Product application:
Package:
Audited Supplier 
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