A rotary kiln is a high-temperature processing device used to heat materials to high temperatures (calcination) in a continuous process. Materials produced using rotary kilns include:• cement• lime• Refractory materials• Metakaolin• Titanium dioxide• Alumina• Vermiculit

A tire, sometimes called a ring, usually consists of a single annular steel casting, machined to a smooth cylindrical surface, loosely attached to the kiln shell by various "chair" arrangements. These all required some clever design, as the tire had to fit snugly against the casing, but also allow t