Device to inject a reducing gas into a shaft furnace
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United States of America Patent
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Nov 16, 2023
app pub date -
Sep 15, 2020
filing date -
Sep 15, 2020
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Abstract
A device to inject a reducing gas into a shaft furnace including an external casing whose front face is provided with an outlet for gas injection into the shaft furnace, an internal casing located inside the external casing and made of a steel able to resist to a temperature up to 1200° C., this internal casing having an opening matching the gas injection outlet of the front face of the external casing and a refractory layer located between the external casing and the internal casing.
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