Method for exchangeably fastening a refractory purge plug or sleeve
AssigneeStopinc Aktiengesellschaft
InventorsMichael Klikovich, Leopold Kneis
Life of this patent
Estimating the term…
Abstract
A container for molten metal has at least one opening in which a refractory nozzle brick is mounted. A refractory purge plug or a refractory sleeve defining an outlet opening is inserted in the nozzle brick opening. A defined gap is formed between the nozzle brick opening and the purge plug or the sleeve and is filled with a refractory mass, this mass consisting of a material which can be easily bored or milled out of the mass for the purpose of replacing the purge plug or the sleeve. In this manner, laborious cleaning steps can be avoided and the nozzle brick no longer risks being damaged.
Claims10
A method for mounting and removing a refractory purge plug or a refractory sleeve forming an outlet opening in or from a nozzle brick which is inserted into an opening of a container for molten metal and has a nozzle brick opening, the method comprising:
- introducing a new purge plug or a new sleeve into the nozzle brick opening and positioning and fixing the new purge plug or the new sleeve in the nozzle brick opening, and
- thereafter, filling a gap between the nozzle brick opening and the purge plug or the sleeve with a refractory mass,
- wherein the positioning of the new purge plug or the new sleeve in the nozzle brick opening is supported by laser measurement and/or optical methods,
- in order to remove a worn purge plug or a worn sleeve, the refractory mass being removed from the gap such that the purge plug or the sleeve detached in this way is replaceable.
Dependencies are inferred from the claim text.