F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
F26B21/20—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
F26B21/202—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with means for changing the flow pattern, e.g. by reversing gas flow or by moving the materials or objects through subsequent compartments, at least two of which have a different flow direction
F26B21/204—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with means for changing the flow pattern, e.g. by reversing gas flow or by moving the materials or objects through subsequent compartments, at least two of which have a different flow direction by using movable fan units