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:
Jun. 10, 1980
Filed:
Mar. 20, 1978
Arnulf Diener, Dortmund, DE;
Fritz Meininghaus, Dortmund, DE;
Gunter Oehmen, Dortmund, DE;
Robert Schrott, Dortmund, DE;
Hoesch Werke Aktiengesellschaft, Dortmund, DE;
Abstract
A method for preheating the oxygen used in converters. Steam which is already available in the usual steel manufacturing plant, is used to preheat the oxygen. The steam may be generated from waste gas produced in an converter process. A heat exchanger which may be placed into an oxygen supply line, feeds into a line of the blast lance. This heat exchanger may be placed between the feed line to the blast lance and shut off and control devices in the oxygen supply line. A connector in the oxygen supply line may be located between the heat exchanger and the feed line to the blast lance, and may be heat-insulated.