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:
May. 13, 2003
Filed:
May. 03, 2001
Leopold Werner Kepplinger, Leonding, AT;
Kurt Wieder, Schwertberg, AT;
Herbert Mizelli, Micheldorf, AT;
Josef Stockinger, Leonding, AT;
Johann Wurm, Bad Zell, AT;
Parviz Zahedi, Asten, AT;
Abstract
Process and apparatus for producing liquid pig iron or primary steel products from iron-containing material in lump form in a fusion gasifier ( ), in which, with lump coal and oxygen-containing gas being fed in, and with simultaneous formation of a reduction gas, the iron-containing material is fused, lump coal being fed to the fusion gasifier ( ) from above and, together with the iron-containing material, forming a fixed bed ( ) in the fusion gasifier ( ) and thereby giving off its fraction of volatile hydrocarbons into the dome space ( ) located above the fixed bed ( ), and pulverized-fuel burners ( ) being directed obliquely from above towards the surface of the fixed bed ( ). The operation of the pulverized-fuel burners ( ) is in this case controlled in such a way that the combustion of the carbon fraction of the carbon carriers in fine particle form takes place in a proportion of at least 40% to form CO .