The rotary kiln is categorized into two main types: external heating (SYHW) and internal heating (SYHN). Primarily used for calcining and drying materials such as catalysts, molecular sieves, chemical powder materials, activated carbon, battery materials, abrasives, welding agents and materials, and rare earth materials, featuring high production efficiency and automation. According to the properties and requirements of different materials, feeding systems, discharge systems, cooling systems, and dust removal systems can be equipped for the rotary kiln.