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:
Oct. 20, 2020
Filed:
Apr. 08, 2016
Outotec (Finland) Oy, Espoo, FI;
Peter Björklund, Espoo, FI;
Oskari Karhuvaara, Espoo, FI;
Mikael P. Jåfs, Kirkkonummi, FI;
Lauri P. Pesonen, Oakville, CA;
OUTOTEC (FINLAND) OY, Espoo, FI;
Abstract
Provided are a method and an arrangement for operating a metallurgical furnace. The method comprises a feeding step, and a temperature controlling step for controlling the temperature of a molten metal layer and a slag layer in a furnace space of the metallurgical furnace. The temperature controlling step comprises a first measuring step for measuring the slag temperature (T), a second measuring step for measuring the slag liquidus temperature (T), and a calculating step for calculating a superheat temperature (T) by calculating the temperature difference between the slag temperature (T) and the slag liquidus temperature (T). In case the calculated superheat temperature (T) is outside a predefined superheat temperature range (T), the method comprises an adjusting step for adjusting to adjust the actual superheat temperature. Also provided are computer program products.