A method and a device for detecting slag

摘要

The invention relates to a method and a device ot detecting the presence of slag in a shroud (4) through which molten metal passes from a ladle (2) to a tundish (6). A transmitting coil (20) generates an electromagnetic field. An induced voltage generated at a receiving coil (24) is compared with a defined voltage range. If the induced voltage has a value outside the defined voltage range it is indicative of the presence of slag. The coils (20, 24) are arranged in an unmovable manner in relation to the shroud. The invention also relates to a casting plant.