Loading Port:Shanghai
Payment Terms:TT OR LC
Min Order Qty:15 m.t.
Supply Capability:30000 m.t./month
General Information
The silica brick can be widely used in coke oven, hot blast furnace, glass furnace and carbon furnace. In glass industry, it is mainly employed to build the doghouse crown, suspended wall of channel, top crown and inlet sealing. In metallurgy industry, it is adopted as the nozzle brick
Features
1.High purity
2.Long service life
3.Accurate size tolerance
4.Pure color
5. Luster appearance
6..Good thermal conductivity
7.Good creep resistance
Application of the Acid refractory silica bricks
Silica brick is mainly used for Coke oven, glass kiln, hot-blast stove, tunnel kiln,Acidic furnace non-ferrous metal smelting and some other thermotechnical equipment in good furnace building materials.
Physical & chemical indexes of the refractory silica bricks
| Silica brick for coke oven | ||
| Item | Furnace bottom,Furnace wall | Other |
| SiO2 % ≥ | 94 | 94 |
| Cold crushing strength Mpa ≥ | 30 | 25 |
| Apparent porosity % ≤ | 22 | 24 |
| Refractoriness under load, 0.2MPa, °C≥ | 1650(Cementation silica 1620) | 1650(Cementation silica 1620) |
| Permanent linear Change 1450 °C,2h ≤ | 0—+0.2 | 0—+0.2 |
| True density g/cm3 ≤ | 2.34 | 2.35 |
| Thermal expansion(1000 °C)% ≤ | 1.28 | 1.3 |
