The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
Mar. 23, 2021
Applicant:
Midrex Technologies, Inc., Charlotte, NC (US);
Inventors:
Todd Michael Astoria, Harrisburg, NC (US);
Haruyasu Michishita, Charlotte, NC (US);
Assignee:
Midrex Technologies, Inc., Charlotte, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 13/00 (2006.01); C21B 13/12 (2006.01); C21B 13/02 (2006.01); C21B 13/14 (2006.01);
U.S. Cl.
CPC ...
C21B 13/0073 (2013.01); C21B 13/0093 (2013.01); C21B 13/023 (2013.01); C21B 13/12 (2013.01); C21B 13/14 (2013.01); C21B 2100/44 (2017.05); C21B 2100/64 (2017.05); C21B 2100/66 (2017.05);
Abstract
A direct reduction process comprises providing a shaft furnace of a direct reduction plant to reduce iron oxide with reducing gas; providing a direct reduced iron melting furnace; and coupling a discharge chute between a discharge exit of the direct reduced shaft furnace and an inlet of the direct reduced iron melting furnace; wherein direct reduced iron and the reducing gas from the shaft furnace flow through the discharge chute and the reducing gas controls the melting furnace atmosphere to reducing environment.