| 摘要 |
The fluidized bed device (1) comprises: a gas supply unit (8); a starting material container (7); a spray casing (6) in which a flow chamber (17) is formed; and a filter casing (5). The starting material container (7) comprises a perforated plate (22), a cylindrical straight section (23) and a reverse truncated cone-shaped tapered section (24). The spray casing (6) is formed in a tapered shape, the cross-sectional area of the upper end of which is larger than the lower end. For the fluidized bed device (1), when the amount of liquid added per unit perforated plate area converted to a heat quantity is (B) (kJ/min∙cm2) and the PL value, which represents the liquid-absorbing ability of the particles, is (PL), (B) is set to be (PL) x 1.3 ≤ (B) ≤ (PL) x 3.2. |
