摘要 |
<p>A humidifying cylinder (21) includes a first rotatable cylinder (23) having an inlet end (25) and an outlet end (27) and plurality of first blades (29) extending substantially radially outwardly from an exterior surface (31) of the first cylinder (23). The humidifying cylinder (21) further includes a second rotatable cylinder (33) having an inlet end (35) and an outlet end (37) and a plurality of second blades (39) extending substantially radially inwardly from an interior surface (41) of the second cylinder (33), the second cylinder (33) being substantially coaxial with the first cylinder (23) and the first cylinder (23) being disposed inside of the second cylinder (33) such that the exterior surface (31) of the first cylinder (23) and the interior surface (41) of the second cylinder (33) define an annular space (43). At least one drive (45) is provided for rotating the first cylinder (23) and the second cylinder (33). At least one conduit (47) is disposed in the annular space (43) for introducing moisture into the annular space (43). A method of humidifying material is also disclosed.</p> |