... to operate and mantain Grain Slag Dryer First, slag dryer introduction: Slag dryer is widely used in building materials, ... . It is also a kind of rotary dryer, mainly by the rotary body, leading-wind device, high speed ... many combined-type raising material device, overcome traditional dryer’s "wind tunnel" phenomenon, high thermal efficiency, ... you! the Newest Grain Slag Rotary Dryer with High Quality