Refractory castable is one of the refractory materials. Due to its convenient construction and good integrity, it is widely used in cement rotary kiln, glass kiln, metallurgy and other industries, with a wide variety of castables. Different types have different properties and also have huge differences in the field of use. Below is an overview of castables that will help you understand the types and industrial applications of castables.
Application of castables in various industries
1. Application of castables in cement rotary kilns Castables are widely used in new dry-process cement rotary kilns. There are many types of refractory castables used in kilns. Depending on the working environment of the kiln, the castables used include ordinary refractory castables, ultra-low cement refractory castables, cement-free refractory castables, steel fiber refractory castables, anti-knock refractory castables, and anti-crusting refractory castables. , phosphate refractory castables, alkali-resistant castables, etc., thermal insulation castables, self-made refractory castables, flowable refractory castables and other new castables.
2. Application of castable in glass furnace
Refractory castables mainly include fused silica castables, corundum castables and light mullite castables.
3. Application of castables in metallurgical industry
Castables for ironmaking systems
Castables are generally low-cement or ultra-low-cement castables, mainly composed of Al2O3 aggregate, SiC, carbon, cement and various admixtures.
Castables for hot metal pretreatment
Refractory castables are mainly used for furnace bottoms, molten pools and slag lines. Spray gun is an important equipment for molten iron pretreatment. Since the middle and late 1980s in my country, the spray gun refractory material has gradually developed into a castable overall spray gun based on the Al2O3-SiO2 system. The integral spray gun made of the castable has the characteristics of uniform structure, no joints, good thermal shock resistance and long service life.