Definition:
The Silica Fire Proof Bricks is made of silicon raw material, the content of SiO2 is above 95%. And the content of Al2O3 is below 1.0%. Our factory produces various kinds of refractory products. The products can be made according with the customers' requirement.
Advantage:
The Silica Fire Proof Bricks have the characteristics of low thermal conductivity, high load softening temperature, small residual expansion, and excellent reburning line change performance. They are suitable for industrial furnaces such as coke ovens, hot blast furnaces, glass furnaces and carbon furnaces. It is mainly used for the heat insulation layer and working layer of thermal equipment, and can be used for the heat insulation layer of various high temperature kiln equipment under high temperature conditions (≤1500℃) without contact with molten slag. This product is suitable for the heat insulation material of the silica brick lining of the high temperature hot blast stove of the large blast furnace and the heat insulation of the silica brick masonry of the glass furnace.
General The Silica Fire Proof Bricks can be divided into two levels: the first grade can be used in the top of the steel rolling heating furnace and the roof of the silicate industrial kiln, and can be directly in contact with the flame; the second grade is used in the general industrial kiln Insulation. Applicable to: industrial furnaces such as coke ovens, hot blast furnaces, glass melting furnaces and carbon calciners. Generally, the bulk density of silicon heat insulation refractory bricks is 0.9-1.1g/cm3, the compressive strength is 2.0-5.9MPa, and the thermal conductivity is 0.35-0.42W/(m·K). It has excellent fire resistance, its softening temperature under load is close to 1620℃ for dense silica bricks, with only a small residual expansion, and its thermal stability is better than dense silica bricks. Therefore, siliceous heat-insulating refractory bricks can be used for a long time under high temperature conditions (1500-1550°C) without contact with molten slag, but they are especially suitable for high-temperature hot-blast furnaces of large blast furnaces. Thermal insulation of silica brick gas.
Application:
Silica Fire Proof Bricks is mainly used for the partition of coking chamber and combustor of coke making furnace, regenerator chamber and cinder chamber of steelmaking open hearth furnace, soaking pit, refractory material of glass melting furnace and sintering furnace of ceramics and other kiln vault and other load-bearing parts.
It is also used for high temperature load bearing parts of hot blast furnace and acid open hearth furnace top.
Product Description:
| Silica Fire Proof Bricks |
| Item | Unit | BG-96A | BG-96B | BG-95 | XBG-96 | ZBG-96 | ZBG-96 |
| SiO2 | % | ≥96 | ≥96 | ≥95 | ≥96 | ≥96 | ≥96 |
| Fe2O3 | % | ≤0.6 | ≤0.8 | ≤1.0 | ≤0.8 | ≤0.8 | ≤0.8 |
| Melt index | % | ≤0.5 | ≤0.7 | - | ≤0.5 | ≤0.5 | ≤0.7 |
| Apparent Porosity | % | ≤21 | ≤22 | ≤22 | ≤21 | ≤21 | ≤22 |
| Ture Bulk Density | g/cm3 | ≤2.34 | ≤2.34 | ≤2.34 | ≤2.34 | ≤2.34 | ≤2.34 |
| Cold Crushing Strength | Mpa | ≥40 | ≥35 | ≥30 | ≥35 | ≥30 | ≥35 |
| Residual Quartz | % | ≤3 | ≤3 | ≤3 | - | - | - |
| Refractoriness under load, 0.2MPa | ℃ | ≥1680 | ≥1680 | ≥1680 | ≥1680 | ≥1680 | ≥1680 |
| Linear Change on Reheating(1450℃×2h) | % | 0~0.2 | 0~0.2 | 0~0.2 | +0.2 | +0.2 | +0.2 |
Packaging and shipping
Standard packing: waterproof inner packing + outer packing suitable for container transportation
Product Tags:
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Coke Oven Silica Refractory Bricks Images
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