Fremgangsmåte og utstyr for skumming

摘要

The present invention relates to a method and equipment for the formation/maintenance of foam in a process. The present invention relates in particular to metallurgical processes which are carried out at high temperatures. The present invention concerns, in particular, the foaming of slag layers in arc furnaces for the treatment of low-alloy and stainless steel, where the slag layer is foamed by the addition of dry ice particles.