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AssigneeTianjin Cenax Biotechnology Co., Ltd.
InventorsYiming Liu, Huifen Lu, Fei Liu, Yitao Liu, Min Chen
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The present invention relates to a fluidized bed apparatus and a method for particle-coating or granulating, the fluidized bed apparatus includes a swirl generator which is mounted on a sprayer body in the fluidized bed apparatus and extends throughout an air distribution plate and is connected to a source of compressed air. The swirl generator comprises a tubular sleeve extending circumferentially around the sprayer body, and an air chamber is defined between the sleeve and the sprayer body, wherein the sleeve comprises a plurality of guiding slots. The air from the source of compressed air via the air chamber is directed by said guiding slots to rotate outwardly, so as to provide a swirling air stream circumferentially outwardly relative to the sprayer. The present invention can facilitate the development of the spray pattern and the particle flow pattern and allows the particles to spin respectively due to slight friction with the inner wall of the partition, thereby opportunities for the particles to obtain a more uniform spray when subsequently passing through the spray zone above the nozzle are increased, so that performance of the fluidized bed apparatus is improved.
A swirl generator of a fluidized bed apparatus for particle-coating or granulating, wherein the fluidized bed apparatus comprises a product container, a lower plenum base, an air distribution plate residing between said product container and said plenum base, and a partition, said fluidized bed apparatus further comprises at least one sprayer which includes a sprayer body and a nozzle provided at an upper end of the at least one sprayer, a lower end of said at least one sprayer extends throughout said air distribution plate, said partition is vertically positioned coaxially with said at least one sprayer in said product container and is suspended above said air distribution plate, the swirl generator is mounted on said sprayer body characterized in that, said swirl generator extends through said air distribution plate and is connected to a source of compressed air, and said swirl generator comprises a tubular sleeve extending circumferentially around said sprayer body, an air chamber is defined between said sleeve and said sprayer body, and said sleeve comprises a plurality of guiding slots, the air from said source of compressed air via said air chamber is directed by said guiding slots to rotate outwardly, so as to provide a swirling air stream circumferentially outwardly relative to said at least one sprayer.
Dependencies are inferred from the claim text.