Water cooling system for continuous casting equipment

Abstract

Device in connection with a water-cooling system for direct chill semi-continuous casting equipment for casting metal, in particular casting aluminium ingots ( ). The solution comprises one or more chills ( ) arranged in a frame structure with an integral water distribution box ( ). The chill(s) comprise(s) a mould chamber surrounded by permeable wall elements ( ) for the supply of oil and/or gas and is(are) open at the top with an opening ( ) for the supply of molten metal and, at the start of each casting operation, is(are) closed at the bottom by means of a mobile support. The metal is cooled in two stages, by primary cooling in the mould chamber and secondary cooling by direct water cooling immediately below the primary cooling area. A separate cooling circuit called the recooling circuit is arranged to cool the chills after the end of the casting cycle. The recooling ( ) and secondary cooling ( ) thus consist of two separate cooling circuits. The recooling circuit comprises one or more cooling ducts ( ) in the chill wall with supply and outflow pipe systems ( and ). The secondary cooling circuit comprises a water distribution chamber ( ) which is connected to all the chills ( ) of the equipment and which distributes water to drilled holes or a water distribution slit ( ) around the circumference of the chill.