Airflow classifier with cooling structure

An airflow classifier with a cooling structure relates to the technical field of powder crushing tools and comprises a shell, a classifying wheel is rotatably arranged at the upper end of the shell and rotatably mounted on a rotating device, the rotating device comprises a bearing sleeve, and a cooling shell surrounds the bearing sleeve. A cooling cavity is formed through the area between the inner wall of the cooling shell and the outer wall of the bearing sleeve, and a plurality of cooling rings are arranged in the cooling cavity side by side. The high-temperature-resistant bearing solves the problems that a high-temperature-resistant bearing of an airflow classifier in the prior art either cannot bear high rotating speed or cannot meet the requirement of the classifier in stress strength, so that a bearing part is easy to damage, frequent maintenance is caused, and the classification efficiency of materials is influenced. 设有冷却结构的气流分级机，涉及粉体粉碎用具技术领域，包括壳体，壳体的上端部转动设有分级轮，分级轮转动安装于转动装置上，转动装置包括轴承套，轴承套外部包围有冷却壳体，并通过