Method of sealing and repairing a refractory tap hole
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United States of America Patent
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Sep 22, 2020
Grant Date -
Nov 30, 2017
app pub date -
Dec 14, 2015
filing date -
Dec 23, 2014
priority date (Note) -
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Abstract
A method of sealing a slag drain in a direct smelting vessel is disclosed. Also disclosed are a method of maintaining a slag drain channel and a direct smelting vessel with a slag drain channel that extends through a sleeve of refractory material installed in the direct smelting vessel. The method for sealing the slag drain includes locating a pre-formed refractory material at an inlet end of the slag drain channel so that it is exposed to a molten bath contained within the direct smelting vessel and sealing the slag drain channel with sealing material downstream of the pre-formed refractory material.
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