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:
Apr. 26, 2016
Filed:
Apr. 02, 2007
Risto Saarinen, Espoo, FI;
Risto Saarinen, Espoo, FI;
Outotec Oyj, Espoo, FI;
Abstract
The invention relates to a method for treating solids-containing process gas in a suspension smelting furnace, comprising directing the process gas from the reaction shaft of the suspension smelting furnace to a lower furnace and, further, through a raised shaft to a waste heat boiler to cool the process gas, whereby, through one or more gas nozzles placed on the lower furnace top wall, oxidizing gas is fed into the process gas flowing in the lower furnace, whereby the amount of oxidizing gas is adjusted during the process so that the amount of sulphides contained in the solid matter of the process gas that is directed to the waste heat boiler is minimized. The invention also relates to the equipment.