The rotary kiln refers to a rotating calcining kiln (commonly known as a rotary kiln), which belongs to the category of building materials equipment. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns, and lime kilns according to the different materials processed.

回转式烘干机是一种工业烘干设备，应用于肥料、冶金、化工等行业。

The rotary kiln refers to a rotating calcining kiln (commonly known as a rotary kiln), which is categorized as building material equipment. Based on the different materials processed, rotary kilns can be divided into cement kilns, metallurgical chemical kilns, and lime kilns.

回转窑是指旋转煅烧窑（俗称旋窑），属于建材设备类。回转窑按处理物料不同可分为水泥窑、冶金化工窑和石灰窑。