SLAG DOOR ARRANGEMENT AND CLEANING METHOD
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United States of America Patent
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Issued Date -
May 4, 2023
app pub date -
Nov 1, 2022
filing date -
Nov 3, 2021
priority date (Note) -
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Abstract
A slag door arrangement (10) for a metallurgical furnace (1) includes a furnace vessel (2) with a slag tunnel (8) having a rectangular opening cross section extending laterally through the furnace vessel (2). A pivoting movement of the slag door about a horizontal pivoting axis and a lifting movement of the slag door in a direction perpendicular to the horizontal pivoting axis are independent of each other. A method for cleaning a slag opening of such a metallurgical furnace (1) includes pivoting the slag door to perform a cleaning movement from a position of the slag door in the slag tunnel near the interior of the furnace towards the outside of the furnace out of the slag tunnel at controllably different distances (clearances) from the bottom of the slag opening or of the slag tunnel.
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