Drying device

The drying device (1) of the present invention has a casing (3) including a first inlet (7A) and a second inlet (7B), and a hydrate supply device (50) for supplying hydrate to the inlet (7A, 7B); a first rotating shaft group (21) comprising a plurality of rotating shafts that rotate rightward as viewed from the front side; and a second rotating shaft group (22) comprising a plurality of rotating shafts that is arranged at the right side of the first rotating shaft group (21) viewed from the front side and rotate leftward; and a control device (60). The first input port is disposed directly above the rotating shaft (5b) of the first rotating shaft group of the two closest rotating shafts; the second input port is disposed directly above the rotation axis (5c) of the second rotating shaft group (22) of the two closest rotating shafts. When the load of the rotating shaft of one of the rotating shaft groups (21, 22) is higher than a predetermined value, the control device is used to reduce the supply amount of th