The new dry-process cement kiln has the characteristics of high kiln temperature, fast kiln speed, serious alkali corrosion, complex structure and high energy saving requirements, which promotes the comprehensive updating of the refractory materials in cement kiln and its use technology.
Generally speaking, in the kiln of large SP kiln and PC kiln: directly combined with magnesia chrome brick for firing zone,
spinel refractory brick of cement kiln or easy to hang kiln skin and
magnesium chrome brick with better thermal shock resistance for transition zone.
High alumina bricks are used for the decomposition zone, heat insulating alkali resistant clay bricks or ordinary clay bricks of cement kiln are used for the rear of the kiln cylinder, and refractory castables or suitable refractory bricks are used for the front and rear kiln mouths.
In the preheater system: ordinary alkali resistant clay bricks and alkali resistant castables are used for vaults, high strength alkali resistant clay bricks are used for tertiary air ducts, and a large number of refractory castables, series of insulating bricks and series are used. In the kiln door cover and chiller system, the calcium silicate board is equipped with silicon carbide bricks and silicon carbide composite bricks, series of heat insulation bricks, series of
refractory castables of cement kiln, series of calcium silicate boards and More than 30 kinds of refractory materials in 7 categories including refractory fiber materials for the cement kiln..
