Compact structure, large area of heat conducting, small occu-pied space, less air used when drying and less dust.Blades have selrcleaning function by their interaction and materials have longer dwelling time.

• 结构紧凑,传热面积大,占地面积小干燥时用气量小,粉尘少桨叶相互作用具有自净功能物料停留时间长,填充系数高。