Loading patent…
AssigneeGlatt GmbH
InventorsDavid M. Jones, Peter F. F. Hirschfeld, Reinhard Nowak
Estimating the term…
An apparatus for layering powder onto particles has a vessel in which a rotor is mounted rotatable therein around a vertical axis. The rotor is a disc with a supporting surface for supporting particles. The apparatus also has a feeder with a substantially horizontal introducing member protruding slightly into the vessel above the disc. The introducing member limits a liquid outlet and an annular powder outlet encompassing the liquid outlet. During a layering operation, the introducing member protrudes into a bed of particles lying on the rotating disc and moved by the latter. There can then be sprayed liquid and powder simultaneously onto the particles passing in proximity of the outlets. This enables layering powder onto particles to produce thereby pellets having sizes lying in a narrow range.
Apparatus for producing pellets by layering powder onto particles, comprising a vessel, a rotor having a supporting surface for supporting particles, arranged in said vessel and supported for rotation around a vertical rotational axis, feeding means for introducing a powder and a liquid into a processing space disposed inside said vessel and adjacent to said supporting surface of said rotor, wherein said feeding means comprise an introducing member, a liquid outlet and a powder outlet, wherein said outlets open into said processing space and have a common axis, and wherein one of said outlets encompasses the other of said outlets in a view parallel to said axis of said outlets.
Method for producing pellets by layering powder onto particles, comprising introducing particles into a processing space of a vessel, the processing space being limited at its lower end by a rotor rotatable around a vertical axis, rotating said rotor so that a bed of moving particles is formed on said rotor, and introducing atomized liquid and powder into said bed by feeding means having a liquid outlet and powder outlet protruding into said bed.
Dependencies are inferred from the claim text.