CO2 Cryogenic cleaning - DryBlast
DryBlast is a complete range of SOL technologies, products and services for the cleaning of surfaces with dry ice: the system is simple, ecological, nonabrasive and economical and is based on the use of a high-speed jet of dry ice pellets and compressed air. The solid CO2 particles have a typical diameter of about 3 mm and the temperature of about -78°C, and have the characteristic of sublimating (passing from the solid to the gaseous state) very quickly, disappearing directly into the atmosphere without leaving residues and removing the layer of dirt from the surface is treated.
The solid CO2 particles penetrate the layer of the contaminant to be removed and at the same time begin to sublimate into gas and exert pressure between the layer to be removed and the surface below, an action which is helped by the dirt becoming fragile under the low temperature of the pellets.
The coating removal is achieved as the combined result of three mechanism: Kinetic energy transfer, thermal shock, velocity induced pressure differential.
In addition, compared with the use of solvents and chemical products, DryBlast technology leaves no residues of potentially harmful products on the surfaces of food equipment and plant which thus remain unchanged even after hundreds of applications, guaranteeing the quality of the food produced.