Patent ID: 6338303
Filing Date: 2002-01-15
Classification: A23N,B01J

Abstract:
A bottom plate for the production of a fluidized bed within a container, comprising a perforated bottom plate having a large number of holes through which gaseous medium flows in order to produce the fluidized bed, said perforated bottom plate (11) having a plurality of separate spaced-apart areas (13) which are distributed essentially uniformly over the perforated bottom plate and in which a greater number of holes (12) per unit of area are provided in comparison to adjacent areas of said perforated bottom plate where a uniform distribution of holes per unit of area is provided, wherein said perforated bottom plate (11) is made from a plurality of sections (14,15) which are laid out in a grid pattern to form said perforated bottom plate (11), wherein said plurality of sections include a plurality of identical perforated sections (15) through which gaseous medium flows to produce the fluidized bed and a plurality of identical non-perforated sections (14), and wherein said plurality of areas (13) having a greater number of holes per unit of area are formed by grouping together in an adjacent relationship several of said perforated sections (15).