Quels sont les matériaux réfractaires pour les fours rotatifs à ciment?

Les fours rotatifs à ciment sont un équipement essentiel dans le processus de production de ciment. Elle nécessite des matériaux réfractaires pour résister aux températures élevées et aux attaques chimiques. Quels sont les matériaux réfractaires pour les fours rotatifs à ciment?

Magnesium-iron aluminum spinel brick

Magnesia-iron-aluminum spinel bricks are made of high-purity magnesia and iron-aluminum spinel as raw materials; through reasonable proportioning, high-pressure molding, and strict control of firing temperature and firing atmosphere, magnesia-iron-aluminum spinel bricks have good flexibility It has good thermal shock stability, high-temperature volume stability, high load-softening temperature, and excellent kiln-hanging performance.

Magnesia calcium brick

Magnesia-calcium brick is an alkaline refractory material made of condensed magnesia-calcium sand. Usually, the CaO content reaches more than 40%. It is mainly used in the firing zone of rotary kilns.

Magnesium zirconium brick

It uses fused magnesia and zircon sand as the primary raw materials and is produced by high-pressure molding and high-temperature firing. It has a dense structure, small and evenly distributed pores, high-temperature strength, bonne stabilité aux chocs thermiques, excellent alkali erosion resistance, and excellent kiln-hanging performance. It is suitable for the firing zone of cement rotary kilns.

Magnesia-aluminum spinel brick

It uses high-purity magnesia and synthetic magnesia-aluminum spinel brick as the main raw materials. The main crystal phases are periclase and spinel. It has good corrosion resistance, résistance à l'écaillage, and high-temperature resistance. It can be used in the transition zone of large dry cement rotary kilns.

Silica mullite bricks

It is made of special-grade high-aluminum clay material, carbure de silicium, and metallic silicon as the main raw materials, through high-pressure molding and high-temperature firing. It has high strength at normal and high temperatures, bonne stabilité aux chocs thermiques, continuously forms a protective layer during use, and has good wear resistance and strong spalling resistance. It is suitable for the lower transition zone, zone de refroidissement, kiln mouth, and other parts of cement kilns.

Anti-flaking briques à haute teneur en alumine

Using special-grade high-alumina clinker as the main raw material, the thermal shock stability is improved by adding phase change raw materials such as diamond sand, kyanite, and alusite. It has strong resistance to spalling, corrosion resistance to potassium, sodium, soufre, chlorine, and alkaline salts, et faible conductivité thermique. It is an ideal material for the transition zone and decomposition zone of cement kilns. It can also be used for kiln door covers and cooling of cement kilns and other parts.

Briques résistantes aux alcalis

Briques résistantes aux alcalis: Alkali-resistant brick products have the characteristics of stable volume, strong resistance to alkali erosion, and resistance to penetration. They are used in preheaters, decomposition furnaces, tertiary air ducts, and other parts of cement kilns.

Alkali-resistant castable

Alkali-resistant castables: Alkali-resistant castables are made of aluminum silicate materials as refractory aggregates and powders, and aluminate cement and admixtures. It has good high-temperature performance and alkali corrosion resistance. The high-strength type also has high strength and good wear resistance. It can be used in systems such as preheaters and air ducts of large and medium-sized dry process cement kilns.

Coulable réfractaire renforcé de fibres d'acier

Coulable réfractaire renforcé de fibres d'acier: Using high alumina phosphate clinker or corundum as aggregate and powder, adding binding agent and the appropriate amount of heat-resistant stainless steel fiber, it has high strength, bonne ténacité, bonne stabilité aux chocs thermiques, resistance to spalling, and Features of strong wear resistance. Used in cement rotary kiln mouth, cooler, decomposition furnace, preheater, and other parts.