Replacement products-----Light refractory fiber castables: Our company studies the domestic expanded perlite light through the study of the structural flaking of the gasifier flue lining and the high temperature change after the use of the flue metal structure. According to the actual production working conditions of the gasifier flue system, the main forms of flue lining damage and the causes of damage were analyzed based on the composition and performance of the refractory castable. It completed the replacement product of the expanded perlite lightweight refractory castable for the gasifier flue lining - lightweight refractory fiber castable. Through a large number of practical applications, the service life of the flue lining was significantly extended and the smoke was reduced. The maintenance cost of the road improves the production efficiency of the gas generator.
Items/name
&number |
Light refractory fiber castable |
Expanded perlite
lightweight refractory
castable -0.8 |
Expanded perlite
lightweight refractory
castable -0.6 |
Expanded perlite
lightweight refractory
castable -0.4 |
Bulk Density(g/cm3) |
≤0.8 |
≤0.8 |
≤0.6 |
≤0.4 |
Compressive strength |
110℃ |
≥2.5 |
≥2.2 |
≥0.8 |
≥0.5 |
900℃ |
≥3.3 |
≥1.6 |
- |
- |
Line change after burning%
(900℃×3h) |
-0.5 |
-0.3 |
-0.6 |
-0.9 |
Thermal Conductivity
W/m·k(500℃) |
≤0.18 |
≤0.3 |
≤0.15 |
≤0.13 |
Explosion-proof temperature |
≥650 |
- |
- |
- |