Smelting assembly for the production of steel
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United States of America Patent
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Jan 10, 2023
Grant Date -
Feb 11, 2021
app pub date -
Mar 5, 2019
filing date -
Mar 6, 2018
priority date (Note) -
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Abstract
An improved apparatus for producing steel, including a lower furnace, an annular, water-cooled, fireproof lined cylindrical upper furnace, on which an upwardly closing conically tapering hat having openings can be placed. The smelting assembly is configured for the operational mode without melt flow and the operational mode with melt flow. To this end, at least one opening is provided in the conical furnace cover, through which opening at least one top lance can be introduced into the upper furnace. A plurality of sidewall injectors radially rotate around the cylindrical upper furnace in such a way that in a working position, the top lance and the sidewall injectors are directed onto a smelt level of a molten mass located in the lower furnace for refining.
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