Raw materials: Silica sand with SiO2 content over 96%.
Application:
Side wall,throat end wall,super structure wall,back wall, main crown,working crown etc. of glass smelting furnace.
Silica bricks are also widely used for coke oven as working linings
Silica bricks are shaped into checkered bricks and used to hot blast furnace
Features:
Silica bricks for coke oven: High refractoriness under load, high thermal conductivity, better thermal shock resistance, low permanent liner change
Silica bricks for hot blast furnace: Low creep ratio, high strength, better thermal shock resistance
Silica bricks for glass smelting furnace: high SiO2 content, high refractoriness, low impurities
|
Product Index |
High quality silica brick |
|
|
SiO2 (%)≥ |
95 |
96 |
|
Fe2O3 (%)≤ |
0.5 |
0.5 |
|
Al2O3 (%)≤ |
3 |
3 |
|
Bulk Density(g/cm3) |
1.8 |
1.8 |
|
Refractoriness ( ℃) |
1710 |
1730 |
|
0.2 MPa Refractoriness under Load (℃) ≥ |
1650 |
1680 |
|
Apparent porosity(%) |
22 |
22 |
|
Cold Crushing Strength(MPa)≥ |
29.4 |
35 |
|
Reheating Linear Change(1450℃× 2h)(%) |
+0.2 |
+0.2 |
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