Alkali Resistant Brick for Cement Rotary Kiln

The raw materials for cement production mainly include limestone (the main material, improving CaO), clay (providing SiO2, Al2O3 and a small amount of Fe2O3), and calibration raw materials. However, in many cement plants, iron ore powder is needed additional due to the lack of iron in the clay. Sometimes there is not enough silicon in the clay, so sandstone needs to be added. Or because there is not enough aluminum, bauxite needs to be added. This kind of added raw material is called auxiliary (or correcting raw material). The purpose of adjusting these raw materials is to make the content of each chemical composition in the raw material meet certain requirements. Manufacturing limestone in cement raw material quality, in general, accounted for 80%, the main production material for cement, limestone formation waters of alkaline oxide and calcium oxide after reaction with water in the dry process production line decomposition heat flow in the system to carry large amounts of material and fuel volatilization of dust, sulfur, chlorine alkali and alkali steam, erosion of refractory, and volatile substances such as alkali, sulfur, chlorine circulation enrichment and fused in precalcining system, adhesion of powder materials, produce skin jams. So in the lining of the use of alkali corrosion resistance to good alkaline bricks.