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. 09, 1996
Filed:
Dec. 30, 1994
Launo L Lilja, Pori, FI;
Valto J Makitalo, Pori, FI;
Outokumpu Engineering Contractors Oy, Espoo, FI;
Abstract
The invention relates to a boiler construction successive to a smelting furnace, particularly a flash smelting furnace, whereby a direct flow from the radiation section of a waste heat boiler to the convection section thereof is prevented by means of an intermediate plate located in the boiler, advantageously made of cooler pipes and arranged in a direction essentially parallel to the flow. At the same time, the return of the gas flow to the outlet opening of the smelting furnace is prevented in order to reduce the tendency to dust accretions caused by the gases. By means of a flow pattern thus optimized, the eddy currents or dead areas in the radiation section are remarkably reduced, which lengthens the delay time advantageous mainly for heat transfer.