Fremgangsmåde og anordning til diskontinuerlig köling og blanding af et flydende levnedsmiddelpræparat

摘要

To give an intermittent cooling and mixing action, to a foodstuff in a fluid state, a vessel (2) has a rotating stirrer (6) to move the foodstuff along the vessel wall (8). The vessel has a double wall (9), with a heat carrier medium flowing through the gap (10) between the walls, which is cooled and returned as a coolant flow through the wall space. To give an intermittent cooling and mixing action, to a foodstuff in a fluid state, a vessel (2) has a rotating stirrer (6) to move the foodstuff along the vessel wall (8). The vessel has a double wall (9), with a heat carrier medium flowing through the gap (10) between the walls, which is cooled and returned as a coolant flow through the wall space. The heat carrier is a compression coolant which transits at least partially from a liquid phase to a gas phase within the space formed by the double wall. The flow through the space of the double-wall structure is of a freon (FCKW), freon with a hydrogen content (HFCKW), or a chlorine-free freon (HFKW). The second coolant circuit uses a halogen-free coolant e.g. NH3.