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:
Nov. 02, 1982
Filed:
Dec. 10, 1980
Ludwig von Bogdandy, Oberhausen-Sterkrade, DE;
Karl Brotzmann, Sulzbach-Rosenberg, DE;
Klockner-Werke AG, Duisburg, DE;
Abstract
A method of heating solid, iron-containing materials in a steel-making converter which includes one or more injection nozzles in a lower nozzle plane and one or more injection nozzles in an upper nozzle plane, the nozzles in each plane being capable of supplying carbonaceous fuels and/or oxygen gas into the converter; the method including supplying fluid carbonaceous fuels (oil and/or gas) and oxygen gas through all the injection nozzles to the interior of the converter so that the fuels will burn and preheat the solid, iron-containing materials, these materials eventually forming a melt at the bottom of the converter; stopping the supply of fluid carbonaceous fuels and instead supplying pulverized carbonaceous fuels through the injection nozzles in the lower nozzle plane once the formed melt has a sufficient depth that it contacts the injection nozzles in the lower nozzle plane, stopping the supply of fluid carbonaceous fuels through the injection nozzles in the upper nozzle zone and the supply of pulverized carbonaceous fuels through the injection nozzles in the lower nozzle zone once the formed melt has a sufficient depth that it contacts the injection nozzles in the upper nozzle zone, and supplying oxygen gas (with from time to time, carbonaceous fuels) to the melt from all the nozzles.