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:
Dec. 05, 2023
Filed:
Aug. 27, 2021
Applicant:
Tata Steel Limited, Mumbai, IN;
Inventors:
Assignee:
Tata Steel Limited, Mumbai, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D 25/00 (2010.01); B08B 9/032 (2006.01); F27B 3/18 (2006.01); F27D 3/18 (2006.01); C21C 5/46 (2006.01); B08B 9/045 (2006.01); C21B 13/00 (2006.01); C21C 5/56 (2006.01);
U.S. Cl.
CPC ...
F27D 25/001 (2013.01); B08B 9/0328 (2013.01); B08B 9/045 (2013.01); C21C 5/4613 (2013.01); F27B 3/18 (2013.01); F27D 3/18 (2013.01); F27D 25/008 (2013.01); C21B 13/0013 (2013.01); C21C 5/56 (2013.01);
Abstract
An apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel The solids injection lance has a single inlet coupled to a section of supply line that conveys gas and solids to the solids injection lance and that is upstream and co-axial with the solids injection lance. The apparatus has a tool that extends through the supply line section and the solids injection lance to remove a blockage of solid material and an assembly for advancing the tool through the solids injection lance and the supply line section to the blockage from an upstream side of the blockage.