MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617098555 A) filed by Jfe Steel Corporation on August 14, 2026, for Blast Furnace Operation State Evaluation Method And Operation Method.
Inventor includes Ichikawa, Kazuhira.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: A method for evaluating the state of operation of a blast furnace according to the present invention comprises calculating the radial distribution of the ore and the coke content on the basis of the shape formed by piles of the ore and coke, calculating the radial distribution of the gas flow rate on the basis of the radial distribution of the ore content and the coke content, calculating the radial distribution of the passage speed of moles of oxygen on the basis of the radial distribution of the gas flow rate, calculating the radial distribution of the passage speed of moles of iron on the basis of the shape formed by the piles of the ore and coke and the rate of molten iron production, calculating the radial distribution of the ratio of the number of moles of oxygen and iron on the basis of the radial distributions of the passage speeds of moles of oxygen and moles of iron, calculating the radial distribution of the ratio of the number of moles of oxygen and carbon contained in CO and CO2 in a gas component on the basis of the distribution state of the gas component, calculating the radial distribution of the direct reduction rate during operation by applying the radial distribution of the ratio of the number of moles of oxygen and iron and the radial distribution of the ratio of the number of moles of oxygen and carbon to a list model, and evaluating whether there is an excess or deficit in the quantity of supplied heat in the radial direction using the calculated radial distribution of the direct reduction rate.
Disclaimer: Curated by HT Syndication.
