Apparatus for granulating powder
AssigneeFujisaki Electric Co., Ltd.
InventorsOsami Watanabe, Katsushi Kawashima, Koji Nagao, Masahiro Sasaki
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Abstract
An apparatus for granulation of fine, light powder by mixing a powder and a mist of binder with a fluidizing air flow. The apparatus includes a container and a filter, provided along an inner peripheral surface of the container, for forming a high density powder layer thereon. A space, formed between the container and the filter, is divided into a plurality of ring-shaped zones. Also, a backwash mechanism and an exhaust mechanism are connected to the container so as to be selectively communicated with the ring-shaped zones.
Claims11
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;
- and
- an exhaust mechanism in communication with said first and second spaces for selectively exhausting air therefrom.
A powder granulating apparatus comprising:
- a closable main body container including a top portion and a main body portion having an inner peripheral surface;
- a filter for forming a high-density powder layer, said filter being disposed along the inner peripheral surface of said main body portion such that a space is formed between said filter and said inner peripheral surface of said main body portion,
- wherein said space is horizontally divided into a plurality of ring-shaped zones;
- a backwash mechanism in communication with said ring-shaped zones for selectively backwashing said filter;
- and
- an exhaust mechanism in communication with said ring-shaped zones for selectively exhausting air therefrom,
- wherein one of said ring-shaped zones can be backwashed while sucking and holding said filter by exhausting air from the other of said ring-shaped zones.
Dependencies are inferred from the claim text.