公开(公告)号：US20240024915A1

公开(公告)日：2024-01-25

申请号：US18225873

申请日：2023-07-25

Applicant: Spraying Systems Co.

Inventor： Joseph P. Szczap ,  Dominic DeMaria

IPC: B05C19/02 ,  B05C19/06

CPC classification number: B05C19/02 ,  B05C19/06

Abstract: A fluidized bed coating system for coating substrate particles with liquid and powder. The system includes a vessel having a particle separating partition that divides an internal chamber of the vessel into up-bed and down-bed regions. An upstanding spray nozzle within the particle separating partition for directing pressurized coating liquid upwardly into the up-bed region such that particles are liquid coated as they circulate through the up-bed and down-bed regions. A coating powder directing system is provided that includes a controller managed powder delivery manifold for directing coating powder and pressurized gas under the particle separating partition and below the discharge orifices of the spray nozzle for coating the liquid coated particles with a uniform thickness of coating powder as they are recirculated through the up-bed and down-bed regions.