Patent ID: 6851558

Claim:
A classifying fluid bed granulator comprising: a granulation chamber having an agglomeration section and a classification section, said granulation chamber including: a bed floor; a ceiling above said bed floor; an end wall between said bed floor and said ceiling; a feed material inlet at said agglomeration section; a seed inlet at said agglomeration section; an air outlet; and a granule outlet at said classification section such that said classification section is located closer to said granule outlet than is said agglomeration section, wherein a bed floor of said classification section is sloped upwards toward said granule outlet so as to form an angle with a horizontal plane, and an entirety of said bed floor of said granulation chamber is sloped upwards toward said granule outlet so as to form an angle with the horizontal plane; and a fluidizing air chamber for supplying fluidizing air to said granulation chamber; wherein said classification section includes at least one asymmetrically-shaped compartment, each of said at least one asymmetrically-shaped compartment including a baffle plate having a free lower edge closest to said bed floor and having a free upper edge opposite said lower edge and closest to said ceiling.