Importance

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Abstract

Fluid-assisted granulating and coating apparatus having a circular planar material circulation plate assembly rotatably mounted coaxilly within a cylindrical work area of an upright vessel, the plate assembly including a plurality of concentric circular slots opening radially outwardly into the work area for directing a suspension fluid radially outwardly thereinto for enhanced material circulation in a circularly spiraling fashion without undesirable concentration or stagnation of charge material within the work area and without undesirable material loss through or clogging of the fluid flow slots. This remarkable effectiveness of the apparatus enables its operation under either fluidized or non-fluidized conditions to provide significant flexibility in controlling the characteristics of granules produced. Inclined radial deflection plates may be affixed to the plate assembly for enhanced axial movement of charge material and upwardly angled rotating impulse blades may be used with the plate assembly for opposed radial circulation of charge material within the upper region of the work area, for enhanced material circulation and increased material capacity of the apparatus.

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First Claim