Voest-alpine Industrieanlagenbau Gmbh

Christian Post

Bernhard Enkner

Albert Paster

Helmut Kerschbaum

Ernst H&ouml;llwarth

In a method for closing and opening a tapping hole of a metallurgical vessel, in which method a closure body ( ), which leaves clear an annular gap between the closure body ( ) and the wall of the tapping hole, can be moved out of a waiting position (I) into a closure position (II), in which it covers the tapping hole, and back, and in which method, at least in the closure position (II), a pressurized gas is introduced into the tapping hole counter to the outflow direction of a molten material contained in the metallurgical vessel, in order to avoid skull formation, the closure body ( ) is moved out of the waiting position (I) into the closure position (II) and back with directions of movement which lie in different areas.

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Linz, Austria

Christian Post