What are the commonly used wear resistant castables for cement rotary kilns? What are their main functions?

What are the commonly used wear resistant castables for cement rotary kilns? What are their main functions?

The wear resistant castable mainly refers to the castable with good wear resistance at room temperature and a specific temperature. The determination of the wear resistance of wear resistant castables at room temperature can be carried out in accordance with the national standard, the test method of the test method for the wear resistance of refractory materials at room temperature). Measured, the smaller the wear amount, the better the wear resistance of the castable.

Grinding castables in the cement clinker firing system are mainly subjected to severe wear from cement raw meal, clinker or dust-containing high-temperature gas, so the raw materials selected for wear resistant castables have the characteristics of high bulk density and high mechanical strength. Such raw materials mainly include fused corundum, sintered corundum, fused corundum, silicon carbide, and so on. In addition, in order to improve the durability and wear resistance of the material, it is generally necessary to add heat-resistant steel fibers.

Wear resistant grinding castables are suitable for large and medium-sized cement kiln mouths, coal injection pipes, tertiary air pipe elbows, gates, grate cooler throats and other parts.