A vibratory dryer includes a conveying surface over which a bed of materials to be dried is conveyed, the surface having an inlet end and an outlet end, and passages through which air passes through the conveying surface to pass through the bed of materials on the conveying surface, a source of heated air coupled to the passages to supply heated air to the bed through the passages, and a vibration generator coupled to the conveying surface. The dryer also includes at least one rotary mixer having an impeller spaced from the conveying surface at a distance so as to be disposed within the bed, the at least one rotary mixer disposed along the length of the conveying surface between the inlet end and the outlet end. The at least one rotary mixer is adapted to provide uplift within the bed without de-densification of the bed.