Patent Document ID: 4857106
Application ID: 07224753
Patent Flag: 1

Claim One:
1. A method for controlling operation of a blast furnace, wherein the blast furnace includes a sensor means which outputs first data, corresponding to conditions in said blast furnace which comprises the steps of: supplying a central processing unit with said first data outputted from said sensor means; storing standard data corresponding to predetermined values of data corresponding to said conditions in said blast furnace; preparing true-and-false data by comparing said first data with said standard data; storing information on operation and control characteristics of said blast furnace based on accumulated actual knowledge and experience of at least one operator of said blast furnace, said information being stored as data in a knowledge base means; inferring and judging heat conditions in said blast furnace, on the basis of said true-and-false data and said data in said knowledge base means and formed by accumulated experience on the operation of the blast furnace; and controlling heat conditions in the blast furnace in accordance with results of said inferring and judging step.