Light Weight Silica Insulation Brick For Blast Furnaces
♦SiO2 % :≥91%
♦Fe2O3%:≤1.4%
♦Bulk Density (g/cm3):≤0．9～1．19
♦Compressive strength ( MPa):2．0～5．9
♦Thermal conductivity(W/MK):0.35~0.42
♦Load softening temperature(℃):1620
Light Weight Silica Insulation Brick has excellent fire resistance, load softening temperature close to dense silicon brick up to 1620 ° C, only a small residual expansion, and its thermal stability is better than dense silicon brick
Characteristics：
1.Low thermal conductivity, good thermal insulation performance.
2.Long service life, easy operation, could be shaped freely
3.Product specification: standard form, normal standard, shaped and special shaped bricks.
4.Can be used in various kilns because of its cheapness and general tray package.
Applications：
Light Weight Silica Insulation Brick is an insulating refractory product made of silica as a main raw material and having a SiO2 content of not less than 91%. The main mineral composition is phosphorus quartz and cristobalite. It is suitable for industrial furnaces such as coke ovens, hot blast stoves, glass melting furnaces and carbon calciners.It is not in contact with molten slag under high temperature condition, especially for discontinuous working thermal equipment.
Light Weight Silica Insulation Brick Specification:
| Items | RS-1.00 | RS-1.10 | RS-1.15 | RS-1.20 |
| SiO2 min | 91% | 91% | 91% | 91% |
| Bulk Density g/cm3 | 1 | 1.1 | 1.15 | 1.2 |
| C.C. strength M/pa min | 2 | 3 | 5 | 5 |
| Liner change after reheating max | 1450 x 2h | 1550 x 2h | ||
| 0.50% | 0.50% | |||
| Refractoriness under load (0.1Mpa) (min) | 1400 | 1420 | 1500 | 1520 |
