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. 27, 1987
Filed:
Dec. 06, 1985
Hermann Hilbrans, Langenfeld, DE;
Michael Gamroth, Cologne, DE;
Gerhard Melcher, Cologne, DE;
Friedrich Megerle, Cologne, DE;
Klockner-Humboldt-Deutz Aktiengesellschaft, , DE (US);
Abstract
A method and apparatus for reducing molten metals and/or slags thereof which involves top-blowing at least one reduction gas stream wherein fine grained coal or coke particles and injected for covering the surface of the molten metal beyond the blow impression formed by the reduction gas stream. The particles of the stream are at least partially gasified into a carbon monoxide (CO) contained reduction gas stream before they hit the metal surface, so that a mixture of carbon monoxide and coke is blown onto the metal surface together with the reduction gas stream. The coke particles are then radially moved toward the outside of the blow impression at all sides to form a thin veil beyond the perimeter of the blow impressions.