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. 07, 2002
Filed:
Oct. 03, 2001
Gerald Rosenfellner, St. Peter/Au, AT;
Abstract
A process to optimize the reduction process with a given quality of ore. The reduction gas is analyzed by means of gas sensor and is separated into two partial flows. The throughput of the partial flow which is oxidized is regulated by a regulation valve and is then sent to the burner where it is oxidized. The other partial flow of the reduction gas [ ] is regulated by a regulation valve according to the required amount of gas in the shaft and is thereafter brought to the required temperature in the heat exchanger and mixed with the oxidized partial flow of the reduction gas. The gas components are determined by a gas sensor and, when necessary, a gas delivery is adjusted according to mathematical formulations. This makes it possible it possible to run the reduction process in the direction of its stoichiomeric optimum using a given quality of ore. A further advantage lies in the fact that the reduction gas can be heated to a desired temperature while maintaining a very low oxidant portion in order that the gas analysis can be adjusted in wide ranges.