Process for granulation of malt extracts

摘要

Producing granules from a malt extract involves injecting liquid formulation of malt extract into gas stream (23); exposing wetted particles to a heated gas stream; separating the particles from gas stream and returning to process chamber (8); feeding particles through gravity to gas inlet region; separating fine particles, dust and feeding back into process as feed material; and generating solid flow (15) in axial direction of reaction chamber. Producing granules from a malt extract involves injecting liquid formulation of malt extract into gas stream (23); exposing wetted particles to a heated gas stream; separating the particles from gas stream and returning to process chamber (8); feeding particles through gravity to gas inlet region; separating fine particles, dust and feeding back into process as feed material; and generating solid flow (15) in axial direction of reaction chamber. The method further involves performing granulation process continuously or in batches; removing granules from the process chamber via a shifting device or a volumetric discharge element; removing the granules that are too large or too small from acceptable product and returning them into process chamber as seed material; and subjecting the granules to secondary heat treatment. The solid flow similar to a circle is generated in axial direction of reaction chamber through material supply into the gas stream fed via rotationally symmetric or elongated gas openings.