| CPC B01J 2/16 (2013.01) [C05C 9/005 (2013.01); C05G 5/12 (2020.02)] | 14 Claims |
|
1. A fluid-bed granulator system with adjustable cooling setup at least comprising:
a fluid-bed granulator,
a first cooler externally connected to the fluid-bed granulator or forming an internal part of the fluid-bed granulator,
a product screen connected to the first cooler and the fluid-bed granulator, wherein the product screen comprises an exit for final on-size product particles, an exit for oversized particles, and an exit for undersized particles, wherein the exit for the undersized particles is connected to the fluid-bed granulator and wherein the exit for the oversized particles is connected to the fluid-bed granulator via one or more crushers, and
a recycle cooler located and connected between the fluid-bed granulator and the exit for undersized particles and/or the exit for oversized particles,
wherein the recycle cooler is connected to the fluid-bed granulator via two or more recycle inlets,
wherein the fluid-bed granulator includes a granulator space inside the fluid-bed granulator, a perforated plate located inside the granulator space, spray nozzles located in, on, above or beside the perforated plate, a fluidization air inlet, supply lines for atomization air connected to the spray nozzles, supply lines for a liquid melt connected to the spray nozzles, a granulation seeds inlet, a granulator outlet opening, and an air vent opening,
wherein the perforated plate comprises, in the direction of flow, a growing zone and a cooling zone,
wherein the growing zone and the cooling zone are divided by partition walls,
wherein the growing zone is connected to the recycle cooler via the recycle inlets,
wherein the growing zone comprises a first growing zone and a second growing zone, wherein the recycle inlets comprise a first recycle inlet connected to the first growing zone and a second recycle inlet connected to the second growing zone.
|