Rotary Kilns: Rotary kilns are essential in cement production, heating the raw mix to over 1,400°C to produce clinker. Refractory linings protect the kiln structure from high temperatures and corrosion caused by gases and materials inside. Each zone of the kiln, depending on the temperature and chemical reactions, requires a specific refractory. Refractories must also be corrosion resistant, particularly in the sintering zone where clinker can attack the lining.

Refractories provide essential thermal insulation, promoting energy efficiency and reducing cement production costs. They are resistant to thermal shock, particularly during temperature changes when the kiln is started and stopped. Their service life is crucial to limit frequent shutdowns, thus reducing production costs. In addition to kilns, other equipment such as cyclones, calciners, smoke chambers, collectors and coolers also require refractory linings to protect against heat and corrosion. These linings are therefore essential for efficient, safe and high-quality cement production.