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:
Feb. 22, 2005
Filed:
Aug. 17, 2001
Risto Saarinen, Espoo, FI;
Ilkka Kojo, Kirkkonummi, FI;
Risto Saarinen, Espoo, FI;
Ilkka Kojo, Kirkkonummi, FI;
Outokumpu Oyj, Espoo, FI;
Abstract
The invention relates to a bottom structure of a suspension smelting furnace to be used in a smelting furnace (), in the reaction space () whereof of sulfidic raw material containing metal, such as copper, nickel or lead, is smelted in the presence of an oxygen-bearing gas and slag-forming agent, in order to render the metal in a form that is advantageous for further treatment, and where the created molten phases () are settled onto the bottom () of the smelting furnace in order to separate the molten phases form each other, when the temperature of the molten phases is within the range 1150-1450° C. According to the invention, the bottom structure includes at least one arched lining layer () inclined in the longitudinal direction of the smelting furnace, so that the temperature on the surface (that is opposite to the surface that gets into contact with the molten phase is below 800° C.