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. 29, 1987
Filed:
Sep. 13, 1985
Bernhard Enkner, Linz, AT;
Leopold Amon, Linz, AT;
Alfred Kubelbock, Zwettl/Rodl, AT;
Wolfgang Trimmel, Leoben, AT;
Paul Nalepka, Niklasdorf, AT;
Leopold Schropp, Linz, AT;
Helmut Schwaighofer, Neumarkt, AT;
Reinhard Pum, Linz, AT;
Manfred Traxler, Hart, AT;
Franz Tasch, Bad Mitterndorf, AT;
Voest-Alpine Aktiengesellschaft, Linz, AT;
Abstract
An electric melting furnace arrangement for the continuous melting of spinnable mineral fine-particle or granular materials has a refractorily lined furnace vessel, a plurality of electrodes arranged on a partial circle extending into the furnace vessel from above, conveying devices for the materials to be melted designed as dosing pipes arranged close to the partial circle formed by the electrodes and each provided between two electrodes and a tapping device penetrating a side wall of the furnace vessel. Transporting devices are provided for admitting the dosing pipes, and when the dosing pipes are completely full, the further conveying of the materials to be melted is interruptable. In a method of influencing the composition of a mineral melt for producing wool in that electric melting furnace arrangement, iron-oxide-containing materials are used as starting materials and metallic aluminum is added thereto for reducing iron oxide to metallic iron, and the metallic iron collecting on the bottom of the furnace vessel is removed via a further tap.