Patent ID: 6109905
Filing Date: 2000-08-29
Classification: B01J,Y10S

Abstract:
A powder granulating apparatus comprising:a closable main body container including a top portion and a main body portion having an inner peripheral surface,wherein said top portion has a central part that projects into said main body portion;a spray nozzle disposed at a center of said central part;a first filter for forming a high-density powder layer, said first filter being disposed along the inner peripheral surface of said main body portion such that a first space is formed between said first filter and said inner peripheral surface of said main body portion;a second filter for forming a high-density powder layer, said second filter being disposed around said central part of said top portion such that a second space is formed between said second filter and said central part;a backwash mechanism in communication with said first and second spaces for selectively backwashing said first and second filters; andan exhaust mechanism in communication with said first and second spaces for selectively exhausting air therefrom.