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:
Sep. 12, 1978
Filed:
Jan. 08, 1976
Olavi August Aaltonen, Pori, FI;
Jyrki Tapani Juusela, Harjavalta, FI;
Outokumpu Oy, Helsinki, FI;
Abstract
A process and device for suspension smelting of finely-divided sulfidic and/or oxidic ores or concentrates are disclosed, wherein a suspension of the finely-divided raw material in an oxygen containing gas is directed downwards as a suspension in a reaction shaft formed jointly by the suspension and a melt below it, in order to oxidize and partially melt the raw material in suspension, whereafter the suspension flow is caused to change its flow direction perpendicularly sidewards so that most of the raw material particles present in the suspension flow impinge against the surface of the accumulated melt in the lower part of the suspension reaction shaft, and the remaining suspension flow is directed into a rising-flow shaft, and the solids are separated. In order to improve the energy economy of the suspension smelting and to increase the capacity, the temperature of the particles falling downwards in the suspension reaction shaft is regulated so that the change in the heat content of the particles impinging against the melt covers the heat quantity required by the endothermal reactions occurring in the melt and together with the change in the heat content of the gas replaces the thermal losses of the furnace.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile