ROASTER FOR POWDER AND GRANULAR MATERIAL

摘要

A roaster for powder and granular material capable of effectively roasting powder and granular material to the inside thereof to provide high quality powder and granular material and capable of effectively avoiding the possibility of causing contamination since the possibility of dewing is less even if the material is cooled. The roaster (1) comprises an inlet (2) in which the powder and granular material is thrown, a drum (30) in which the powder and granular material thrown from the inlet (2) is stored, and a heating means (49) heating the powder and granular material stored in the drum (30). A preliminary heating chamber (3) in which the powder and granular material thrown from the inlet (2) is preliminarily heated and which communicates with the drum (30) is formed between the inlet (2) and the drum (30).