US Patent Issued to JFE STEEL on Feb. 3 for "Method for detecting fluctuation of solidified layer and method for operating blast furnace" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,363, issued on Feb. 3, was assigned to JFE STEEL Corp. (Tokyo).

"Method for detecting fluctuation of solidified layer and method for operating blast furnace" was invented by Kazuhira Ichikawa (Tokyo), Takeshi Sato (Tokyo), Tetsuya Yamamoto (Tokyo) and Tomohiko Ito (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detecting a fluctuation of a solidified layer, and a method for operating a blast furnace by employing the relevant method. In the method for detecting a fluctuation of a solidified layer, the fluctuation of the solidified layer in the lower part of a blast furnace is detected by using the amount of heat supplied to pig iron...