Patent ID: 7611663

Claim:
A nozzle element for introducing gas into an industrial furnace for melting metals, having the following features: a) a nozzle body ( 3 ) made of a refractory material having a hot side ( 5 ) and a cold side ( 7 ); b) a metal jacket ( 9 ) covering the refractory material on the cold side ( 7 ) of the nozzle body ( 3 ); c) heat-conducting elements ( 11 , 13 , 15 , 17 / 17 . 2 ) which are in contact with the metal jacket ( 9 ) and extend into the refractory material whereby the heat-conducting elements ( 11 , 13 , 15 , 17 . 1 , 17 . 2 )) are able to absorb heat and convey it rapidly to the metal jacket ( 9 ), said heat-conducting elements ( 11 , 15 , 17 , 17 . 1 , 17 . 2 ) each having an end that faces the hot side ( 5 ) of the nozzle body ( 3 ) and that is disposed a distance from the hot side ( 5 ) of the nozzle body ( 3 ); d) the metal jacket ( 9 ) is coolable; and e) an outer nozzle pipe ( 19 ) which extends through the metal jacket ( 9 ) and the nozzle body ( 3 ) from the cold side ( 7 ) to the hot side ( 5 ) of the nozzle body ( 3 ).