Primetals Technologies Austria Gmbh

Siemens Aktiengesellschaft

Primetals Technologies Germany Gmbh

Hannes Beile

Markus Dorndorf

Alexander Müller

Markus Abel

Hansjörg Huber

Michael Schmid

Matthias Krieg

Ralf Pitz

Alexander Mëller

Robert Schalast

Christiane Kiessner

Petra Kreuder

Alexander Mueller

Anton Roessle

A burner-lance unit () includes at least two gas connections (), a burner tube (), and a lance tube () that is placed concentrically in the burner tube (). The burner tube () and the lance tube () both have a gas inlet end and a gas outlet end (). The lance tube () has a de Laval nozzle () at the gas outlet end thereof. The de Laval nozzle () is releasably connected to the lance tube (). The burner tube () has a burner nozzle () which is releasably connected to the burner tube ().

Burner-lance unit

A metallurgical melting vessel has a vertical shaft, surrounded by a housing wall, which receives steel scrap. At least one closure element, having laterally spaced-apart fingers extending parallel to one another, is mounted such that it can move between a closed position and an open position. In the closed position, the fingers protrude at least partially into the shaft for the purpose of holding back steel scrap. In the open position, the fingers free the shaft at least to such an extent that the steel scrap can fall from the shaft into the melting vessel. The at least one closure element is mounted so as to be movable from the side of the shaft into the shaft and laterally thereoutof.

Preheating appartus for steel scrap and metallurgical melting vessel equipped therewith

Growing community of inventors

Ettenheim, Germany

Hannes Beile