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The construction steps of refractory castable for blast furnace iron trough include the following five steps: 1. First, support the mold: before supporting the mold, apply the butter evenly on the mold surface. The lower mold shall be centered on the center of the tap hole. Fix the mold after correction. 2. Then make and pour the refractory castable: now fully stir the refractory castable, dry mix it for 1-2 minutes, then add two-thirds of the water consumption, continue stirring for about 2 ...

Refractory Castable is a refractory mixture composed of refractory aggregate, fine powder, additives and binders. Therefore, what are the common classifications of refractory castables? Refractory Castables are usually classified according to the size of porosity, selected binder or combination mode, type of aggregate and construction mode. It can be divided into dense refractory castable and thermal insulation refractory castable according to porosity. According to the classification of ceme...