Primetals Technologies Austria Gmbh

Siemens Aktiengesellschaft

Markus Abel

Markus Dorndorf

Alexander Müller

Hannes Beile

Mark Tratnig

Ralf Pitz

Denis A Vaillancourt

Domenico Nardacchione

A method for detecting a leakage in the area of at least one cooling device of a furnace, wherein, in the event of a leakage, liquid coolant gets into a furnace chamber of the furnace from the at least one cooling device, and wherein a stream of exhaust gas is continuously removed from the furnace chamber over a period of time Z. The steps include dividing off a representative partial stream from the stream of exhaust gas during the period of time Z; condensing vaporous constituents contained in the partial stream; determining a stream of condensate obtained; comparing the stream of condensate obtained with a condensate-stream limit value; and indicating a leakage if the stream of condensate exceeds the condensate-stream limit value. Also a device for carrying out the method and a furnace with such a device are disclosed.

Method and device for detecting a leakage in the area of at least one cooling device of a furnace and a furnace

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 temperature of a metal melt in a furnace is maintained after blowing away slag from a surface of the metal melt by the flow of oxygen and switching over from oxygen to an inert gas, such as nitrogen. A measured temperature of the metal melt is accepted as a metal melt temperature only when the inert gas flow is in a laminar state and after the measured temperature has fluctuated by a maximum of 1% over a period of at least 2 seconds.

Method for maintaining a temperature of a metal melt

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Kehl-Bodersweier, Germany

Markus Abel