Patents by Inventor Mikael P. JÅFS

Mikael P. JÅFS has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and arrangement for operating a metallurgical furnace and computer program product
    Patent number: 10809746
    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 (Tslag), a second measuring step for measuring the slag liquidus temperature (Tslag, liquidus), and a calculating step for calculating a superheat temperature (Tsuperheat) by calculating the temperature difference between the slag temperature (Tslag) and the slag liquidus temperature (Tslag, liquidus). In case the calculated superheat temperature (Tsuperheat) is outside a predefined superheat temperature range (Tsuperheat set), the method comprises an adjusting step for adjusting to adjust the actual superheat temperature. Also provided are computer program products.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 20, 2020
    Assignee: OUTOTEC (FINLAND) OY
    Inventors: Peter Björklund, Oskari Karhuvaara, Mikael P. Jåfs, Lauri P. Pesonen
  • METHOD AND ARRANGEMENT FOR OPERATING A METALLURGICAL FURNACE AND COMPUTER PROGRAM PRODUCT
    Publication number: 20180073102
    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 (Tslag), a second measuring step for measuring the slag liquidus temperature (Tslag, liquidus), and a calculating step for calculating a superheat temperature (Tsuperheat) by calculating the temperature difference between the slag temperature (Tslag) and the slag liquidus temperature (Tslag, liquidus). In case the calculated superheat temperature (Tsuperheat) is outside a predefined superheat temperature range (Tsuperheat set), the method comprises an adjusting step for adjusting to adjust the actual superheat temperature. Also provided are computer program products.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 15, 2018
    Applicant: OUTOTEC (FINLAND) OY
    Inventors: Peter BJÖRKLUND, Oskari KARHUVAARA, Mikael P. JÅFS, Lauri P. PESONEN