Rotary kiln furnace – What is it?

A rotary kiln is a high-temperature heat treatment furnace for metal and ceramic materials, widely used in industries such as cement production, lime calcination, and the manufacturing of metals like iron and zinc. Unlike general heat treatment furnaces, rotary kilns offer advantages such as reduced uneven firing and streamlined manufacturing processes. The basic structure consists of a cylindrical, rotating vessel that operates continuously at temperatures typically ranging from 800°C to 1400°C. The kiln’s slight incline allows materials to move through it via a combination of gravity and rotation, ensuring uniform heat distribution and efficient thermal processing.