Consumption of compressed air is the main cost driver in operating air mist secondary cooling systems in slab casting. With conventional air mist nozzles the consumption of compressed air and hence energy is very high – especially at low casting speeds when water flow rates are low. In order to reduce the compressed air consumption Lechler has developed the Slabcooler nozzle already for the first generation of thin slab casters whilst the conventional Lechler Mastercooler nozzles were mainly applied in thick slab casting.
With its enhanced flexibility of the cooling capacity the Slabcooler ECO provides equivalent spray performance in terms of spray characteristics from min. to max. water pressure whilst the consumption of compressed air has been reduced significantly compared with a Mastercooler nozzle of identical size.