INTERNAL COOLING SYSTEM FOR FLUID-BED GRANULATION PLANTS

摘要

A fluid-bed granulator system with adjustable cooling includes a fluid-bed granulator. A first cooler is externally connected to the fluid-bed granulator or forms an internal part of the fluid-bed granulator. A product screen is connected to the first cooler and the fluid-bed granulator. The product screen includes an exit for final on-size product particles, an exit for oversized particles, and an exit for undersized particles. The exit for the undersized particles is connected to the fluid-bed granulator and the exit for the oversized particles is connected to the fluid-bed granulator via one or more crushers. A recycle cooler is located and connected between the fluid-bed granulator and the exit for undersized particles and/or the recycle cooler is located between the fluid-bed granulator and the exit for the oversized particles. The recycle cooler is connected to the fluid-bed granulator via one or more recycle inlets.