Alkaline materials for cement plants are mainly composed of alkaline oxides (such as MgO, CaO), which have strong resistance to alkaline slag erosion and are often used in high-temperature oxidizing atmosphere environments.
Magnesium refractory materials
Features: With magnesium oxide (MgO) as the main component, it has high refractoriness (≥2000℃), strong resistance to alkaline slag erosion, but poor thermal shock resistance.
Application: Firing zone and transition zone of rotary kiln (withstand high temperature and alkaline material erosion).
Magnesium chromium refractory materials
Features: Magnesium oxide and chromium oxide (Cr₂O₃) are compounded, combining high refractoriness and erosion resistance, and high high-temperature strength.
Application: High temperature zone of rotary kiln (such as firing zone), but its use is gradually restricted due to environmental protection issues (hexavalent chromium pollution).
Magnesium-aluminum spinel refractory
Features: Magnesium oxide and aluminum oxide (Al₂O₃) synthesize spinel (MgAl₂O₄), which has better thermal shock resistance than magnesium materials and good corrosion resistance.
Application: rotary kiln transition zone, high temperature section of cooler.
Keri Refractory supplies all refractory materials for cement plants. If you have any questions, our engineers will help you. Welcome to consult!
