MUMBAI, India, July 25 -- Intellectual Property India has published a patent application (202517066344 A) filed by Jfe Steel Corporation, Tokyo, on July 11, for 'energization state determination device for electric arc furnace, operating method for electric arc furnace, and electric arc furnace.'
Inventor(s) include Oda Nobuhiko.
The application for the patent was published on July 25, under issue no. 30/2025.
According to the abstract released by the Intellectual Property India: "Provided is a technology that enables rapid determination of the energization status within an electric arc furnace and enables stable furnace condition assessment without being affected by dust. The present invention is an energization state determination device for an electric arc furnace, the device comprising: a detection means for detecting sound produced within the electric arc furnace; an output means for analyzing the frequency of the detected sound and outputting a frequency/acoustic pressure signal; and a determination means for determining the state of coverage of an arc formed by slag formation, on the basis of signal intensities for detected sounds of a frequency selected from a range 500-1500 Hz inclusive, a prescribed frequency range, or a plurality of frequencies. The present invention is also a method for producing molten steel by: controlling one of, or a combination of two or more of, a supply speed of an oxygen-containing gas, a carbon material supply quantity, and a slag formation material loading quantity, on the basis of the energization state determined using the energization state determination device; and melting and refining scrap by using the electric arc furnace."
The patent application was internationally filed on Aug. 14, 2023, under International application No.PCT/JP2023/029431.
Disclaimer: Curated by HT Syndication.
