| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for heating fine powder, especially the fine powder having a particle diameter of <=75μm, by which the fine powder can be treated in a large amount and by which the temperature histories of the particles are uniformed, respectively, and to provide a device therefor. SOLUTION: This method for thermally treating the fine powder, comprising feeding the fine powder D into a particulate dispersion medium-charging zone C, carrying the fine powder with pulsed air flow charged from the lower portion of the charging zone C to lift the fine powder at a speed of 10 to 100 cm/sec, and simultaneously thermally treating the fine powder, characterized by lifting the fine powder through divided routes, bundling the divided routes to form at least three units, and uniformly heating the units with heated gas flows jetted from the sides.
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