Is rotary kiln liner used pouring makings or firebrick?

The material of rotary kiln liner can choose normally pouring makings or firebrick, also can use prefabricated component and pouring material mixture composition.

Choose which kinds of material to basically depend on the element such as cost of manufacturing technology, use requirement, economy. Fireproof and pouring expecting is a kind of special cement concrete, commonly used at rotary kiln liner repair, renovate and change. Compare at firebrick, pouring makings have the following advantage: Without juncture: Pouring makings is OK jointless is formed in whole liner surface successive body, reduced the leak of quantity of heat and gas. Anti-corrosive: Pouring the corrosion resistance that expects it is better to have can, can prevent chemical material effectively to liner corrode. Caking property is strong: Pouring makings have very good caking property, can close together agglutinate is in liner surface, increased integral intensity and stability. Construction is convenient: Pouring makings construction bearing is more handy to laying a brick, and can undertake custom-built construction in the light of the liner surface of different figure and dimension.
The liner material of rotary kiln chooses firebrick, have the following advantage: High temperature resistant: The bases of firebrick is mixed for tall purity clay high temperature resistant mineral, can bear high temperature thermal shock and chemistry are corroded, ensure the stability of rotary kiln moves. Wear-resisting caustic: The concussion that rotary kiln liner can endure stock, attrition and wear away, and firebrick has superior wear-resisting caustic performance, can bear to wear away for a long time. Fight erode: Rotary kiln liner still needs those who come from stock, gas and chemical material to bear erode, and firebrick is had fight aggressivity very well can. Construction is convenient: Firebrick can be mixed according to different figure the liner surface of dimension undertakes cut is mixed assemble, construction is relatively convenient. Maintain cost low: Firebrick does not need to be safeguarded regularly and be checked, service life is long, cost is low. But, use firebrick also is put in a few defect, for instance: Juncture influence is sealed: Juncture exists between firebrick, cause gas and leak of quantity of heat easily, influence sealing. Axial carrying capacity is poor: The axial carrying capacity of firebrick is opposite poorer, use for a long time easy generation is out of shape or crackle. Maintenance cost is high: If firebrick appears,damage or ageing, need undertakes maintaining or change, cost is relative taller. Accordingly, when choosing material of rotary kiln liner, need asks to consider integratedly with economic cost according to specific production, the choice fits his plan.