Clay Refractory Castable
Clay Refractory Castable is a castable refractory material prepared by using soft clay as a binder and refractory aggregates, powders and admixtures such as aluminum silicate or corundum mullite. The composition of the clay castables is generally 55% to 65% for refractory aggregates, 20% to 30% for refractory powders, and 10% to 15% for combined (soft) clays. The maximum allowable particle size of refractory aggregate is 8mm, and the aggregate size of aggregate is 8~5mm, 35%~40%; 5~3mm, 30%~35%; <3mm, 25%~30%. The particle size requirement of the refractory powder is less than 0.074 mm and accounts for more than 90%. The combined clay particle size should be less than 0.074mm and account for over 95%.
Clay castable is using refractory clay clinker as aggregate, adding alumina powder and soft clay as binder. According to proper formula proportion, the mixture is mixed for more than 5 minutes, and the service temperature is generally 1300-1450 ℃.
Clay Refractory Castable Specification
|Bulk Density，g/cm3 ≥||2.1|
|Crushing strength，Mpa ≥||110℃×24h||30|
|Liner Change Rate After Burn，% 1250℃×3h||±0.5|
Clay Refractory Castable Application
Clay Refractory Castable suitable in cyclone, returner, burner, mixing chamber top of furnace.