Patents by Inventor Claudio Ojeda Arroyo

Claudio Ojeda Arroyo 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 device for measuring levels of cast iron and slag in a blast furnace
    Patent number: 9598741
    Abstract: The present invention relates to a method for measuring the liquid-metal surface level (13) and the slag surface level (14) in the crucible (1) of a metallurgical shaft furnace comprising the following steps: measuring, at one or more points on the external wall (2) of the crucible, the following variables: the circumferential strain in said external wall (2) by means of a number of strain-gauge sensors (6) fixed to the armor (4) of the external wall (2) of the crucible; and the temperature of said external wall (2) by means of one or more temperature sensors (7) fixed to the armor (4) of the external wall (2) of the crucible; introducing said variables measured at a number of points on the external wall of the crucible into the general equation governing circumferential strain, the solution of which is analytical, and which contains two unknowns, the liquid metal level and the overall liquid metal/slag level, considering set parameters; and solving said equation and obtaining an analytical solution giving th
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: March 21, 2017
    Assignee: Centre de Recherches Métallurgiques asbl—Centrum voor Research in de Metallurgie vzw
    Inventors: Claudio Ojeda Arroyo, Frédéric Durieu, Eric Esser
  • Method and Device for Measuring Levels of Cast Iron and Slag in a Blast Furnace
    Publication number: 20150218667
    Abstract: The present invention relates to a method for measuring the liquid-metal surface level (13) and the slag surface level (14) in the crucible (1) of a metallurgical shaft furnace comprising the following steps: measuring, at one or more points on the external wall (2) of the crucible, the following variables: the circumferential strain in said external wall (2) by means of a number of strain-gauge sensors (6) fixed to the armour (4) of the external wall (2) of the crucible; and the temperature of said external wall (2) by means of one or more temperature sensors (7) fixed to the armour (4) of the external wall (2) of the crucible; introducing said variables measured at a number of points on the external wall of the crucible into the general equation governing circumferential strain, the solution of which is analytical, and which contains two unknowns, the liquid metal level and the overall liquid metal/slag level, considering set parameters; and solving said equation and obtaining an analytical solution giving
    Type: Application
    Filed: July 9, 2013
    Publication date: August 6, 2015
    Inventors: Claudio Ojeda Arroyo, Frédéric Durieu, Eric Esser