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Composition:MgO + Al2O3/Fe2O3/ZrO2
Application:Cement and lime Kiln, or other industrial kilns.
Color:Brown
Raw Material:DBM & Spinel
Refractoriness:≥1790℃
Capacity:500 tons per month
Package:Export wooden pallets
Product Introduction
Magnesia spinel bricks are refractory products made of periclase and magnesia alumina spinel ,which can improve the heat stability of common magnesia brick.
Features
1.Excellent Heat Stability.
2.Better Anti-stripping performance than direct bonded magnesia chrome brick.
3.Abrasion Resistant.
4.High Refractoriness Under Load.
Application
It’s mainly used for burning zone and transition zone of cement kiln, also some other industrial furnaces.
Technical Data
Product | Magnesia Alumina Spinel Bricks | Magnesia AluminaSpinel Zirconium Bricks | Magnesia Spinel Bricks | Magnesia Alumina Zirconium Bricks | |||||||||
Model | MLJ-85A | MLJ-93A | MLJ-95A | MLJ-85B | MLJ-93B | MLJ-95B | MLJZ-93A | MLJZ-93B | MLJZ-R63A | MLJZ-R63B | MZ-96A | MZ-94B | |
MgO% >= | 85 | 88 | 93 | 82 | 85 | 90 | 92 | 88 | 85 | 80 | 92 | 88 | |
Al2O3 >= | 9 | 5 | 3 | 9 | 5 | 3 | 5 | 5 | 3 | 3 | 5 | 5 | |
Fe2O3<= | 0.7 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.7 | 0.8 | 7.5 | 7.5 | 0.8 | 0.9 | |
SiO2 <= | 0.6 | 0.8 | 0.7 | 2.5 | 2 | 2.5 | 1 | 2.5 | 0.9 | 2.0 | 1 | 2.5 | |
ZiO2>= |
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| 1-3 | 1-3 |
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| 1-3 | 1-3 | |
Apparent Porosity<= | 16-18 | 16-18 | 16-18 | 17-18 | 17-18 | 17-18 | 17-18 | 17-18 | 16-17 | 16-17 | 17-19 | 17-19 | |
Bulk Density>= | 2.85 | 2.85-3.0 | 2.85 | 2.8 | 2.85 | 2.82 | 2.85 | 2.8 | 30. | 2.9 | 2.9 | 2.8 | |
Cold Crushing Strength>= | 45 | 45 | 45 | 40 | 40 | 40 | 50 | 50 | 50 | 45 | 50 | 45 | |
0.2.Mpa Refractoriness Under Load（℃)>= | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1660 | 1660 | 1630 | 1700 | 1650 | |
Thermal Expansion1400℃ |
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| 1.6 | 1.6 | |
Thermal Shock Resistance | 1100℃ water cooling, times | 12 | 12 | 12 | 10 | 10 | 10 | 12 | 10 | 10 | 8 | 8 | 6 |
950℃water cooling, times | 100 | 100 | 100 | 80 | 80 | 80 | 100 | 80 | 100 | 80 | 30 | 25 | |
Heat Conductivity | 2.8 | 2.9 | 3.0 | 2.8 | 2.9 | 3.0 | 3.0 | 2.9 | 2.5 | 2.5 | 4.5 | 4.4 | |
