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:
Jan. 03, 2023
Filed:
Dec. 06, 2018
Applicant:
Paul Wurth S.a., Luxembourg, LU;
Inventors:
Patrick Hutmacher, Bettembourg, LU;
Stefan Schons, Tawern, DE;
Charles Steichen, Schlindermanderscheid, LU;
Michel Houbart, Amay, BE;
Assignee:
PAUL WURTH S.A., Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B 13/02 (2006.01); C21B 7/00 (2006.01); C21B 7/02 (2006.01); F27B 1/20 (2006.01); F27D 3/00 (2006.01);
U.S. Cl.
CPC ...
C21B 13/02 (2013.01); C21B 7/002 (2013.01); C21B 7/02 (2013.01); F27B 1/20 (2013.01); F27D 3/0033 (2013.01);
Abstract
A charging system for a shaft smelt reduction furnace includes a frame structure for mounting on a top charge opening of a shaft smelt reduction vessel; a center shaft arrangement supported by the frame structure and for removing off-gas gases from the furnace and to introduce granular charge materials to form a stack of materials in the furnace. The center shaft arrangement includes a center hood for off-gas extraction; a pair of first and second feed channels for first and second materials.