| 摘要 |
PURPOSE: To dry uniformly materials to be dried on all of placing parts when a drier is constituted so that drying air is sent upwardly and downwardly in the drier, supporting a plurality of up and down stages, on which the materials to be dried are placed, in a storage chamber. CONSTITUTION: A drier is provided with an upper supporting part 14a, supporting a plurality of stages of upper and lower placing parts 13 in the upper part of a storage chamber 1, and a lower supporting part 14b, supporting a plurality of stages of upper and lower putting parts 13 at the lower part in the storage chamber 1, while the storage chamber 1 is constituted so that the operation can be switched freely into a condition, wherein drying air is supplied downwardly in the storage chamber 1, and another condition, wherein the drying air is supplied upwardly in the chamber 1, and drying air is supplied into a space A formed between the lower end putting part 13 of the upper supporting part 14a and the upper end putting part 13 of the lower supporting part 14b. |
