A rotary dryer is a type of industrial equipment used to remove moisture from materials. It consists of a large, cylindrical drum that rotates while hot air is passed through it. This process helps to evaporate water from the material, making it lighter and easier to handle. Rotary dryers are commonly used in industries such as agriculture, mining, and food processing. The design of a rotary dryer allows for efficient heat transfer and moisture removal. As the drum rotates, the material is lifted and dropped, ensuring even exposure to the hot air. This method is effective for drying various materials, including grains, minerals, and wood chips.