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:
Sep. 22, 2020
Filed:
Dec. 14, 2015
Applicant:
Tata Steel Limited, Mumbai, IN;
Inventors:
Jacques Pilote, Woodlands, AU;
Rodney James Dry, City Beach, AU;
Assignee:
Tata Steel Limited, Mumbai, IN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 7/12 (2006.01); B22D 41/18 (2006.01); F27D 3/15 (2006.01);
U.S. Cl.
CPC ...
C21B 7/125 (2013.01); B22D 41/18 (2013.01); F27D 3/1536 (2013.01); C21B 7/12 (2013.01);
Abstract
A method of sealing a slag drain in a direct smelting vessel is disclosed. Also disclosed are a method of maintaining a slag drain channel and a direct smelting vessel with a slag drain channel that extends through a sleeve of refractory material installed in the direct smelting vessel. The method for sealing the slag drain includes locating a pre-formed refractory material at an inlet end of the slag drain channel so that it is exposed to a molten bath contained within the direct smelting vessel and sealing the slag drain channel with sealing material downstream of the pre-formed refractory material.