2024-05-30 16:06:05
Refractory castable refers to a mixture of refractory aggregates, binders, and admixtures, mixed with water (or liquid binders) to form a slurry that can be used for pouring construction. The difference from other amorphous refractory materials is that refractory castables have a coagulation and hardening time after construction. Therefore, after the refractory casting is formed, it needs to be maintained for the required time before demolding, and then it can be put into baking use through appropriate natural maintenance.
Refractory casting materials have the characteristics of simple process, energy saving, low cost, and easy mechanized construction in use. It is now widely used in various types of thermal equipment such as cement, steel, glass, and electricity.
Refractory castables and refractory castables used in cement rotary kilns have been widely used in new dry process cement rotary kilns. The types of refractory castables used in this type of kiln are complex. According to the different working environments of the kiln, the refractory castables used include general refractory castables, corundum castables, low cement refractory castables, steel fiber refractory castables, anti explosion refractory castables, anti scaling and fire resistant castables, phosphate refractory castables, alkali resistant castables, and insulation castables.
In addition, there are also self flowing refractory castables and other castables. Due to the working environment requirements of the glass furnace itself, the refractory castables used should have good high-temperature resistance, strong resistance to glass liquid corrosion, and low porosity. The main refractory castables are fused silica castables, corundum castables, lightweight mullite castables, etc.
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