System and method for the production of hot briquetted iron (HBI) containing flux and/or carbonaceous material at a direct reduction plant

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United States of America Patent

PATENT NO 12000011
APP PUB NO 20220403481A1
SERIAL NO

17843013

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Abstract

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A process for producing hot briquetted iron with increased solid carbonaceous material and/or flux includes: providing a shaft furnace of a direct reduction plant to reduce iron oxide with reducing gas; providing a hot briquette machine to produce hot briquetted iron; coupling a chute between a) a discharge exit of the shaft furnace for discharge of hot direct reduced iron and b) an entrance of the hot briquette machine; adding solid carbonaceous material and/or flux to the discharged hot direct reduced iron from the shaft furnace to produce a mixture of the discharged hot direct reduced iron and the solid carbonaceous material and/or flux before feeding to the hot briquette machine; and processing in the hot briquette machine to produce a product of hot briquetted iron with increased solid carbonaceous material content greater than about 3 weight percent and/or an increased flux content.

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Patent Owner(s)

Patent OwnerAddress
MIDREX TECHNOLOGIES INC3735 GLEN LAKE DRIVE SUITE 400 CHARLOTTE NC 28208

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Astoria, Todd Harrisburg, US 3 0
Hatakeyama, Taiji Charlotte, US 5 5
Michishita, Haruyasu Charlotte, US 12 17

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