Voest-alpine Industrieanlagenbau Gmbh

Voest-alpine Industrieanlagenbau Gmbh & Co.

Oberaigner Powertrain Gmbh

Albert Paster

Ernst H&ouml;llwarth

Helmut Kerschbaum

Bernhard Enkner

Christian Post

Thomas Eder

Wilhelm Oberaigner

The invention relates to a device for closing a tap hole of a metallurgical vessel, in particular a converter, for the purpose of separating a molten metal and slag, having a slag stopper which is situated outside the vessel, which provides an actuable closure element that can be inserted into a tap hole, leaving an annular gap relative to the wall of the tap hole, and which provides a number of lines, in particular a pressurized-gas line intended for the supply of the closure element, the slag stopper comprising a connecting frame which carries and fixes the parts of the slag stopper, this connecting frame, for its part, being secured releasably at a connecting point on the metallurgical vessel This allows a significant reduction in the time required for servicing or changing the slag stopper.

Device for closing a tap hole of a metallurgical vessel

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.

Method for closing and opening a tapping hole of a metallurgical vessel

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Niederkappel, Austria

Albert Paster