Bellless blast furnace charging method

摘要

PROBLEM TO BE SOLVED: To provide a charging method of a charging material of a bell-less blast furnace securing stabilization of in-furnace gas stream cloth to walls of a blast furnace and protection of copper stave of the blast furnace.SOLUTION: There is provided a charging method of a charging material of a bell-less blast furnace for charging C batch of coke and O batch of ore with layer shape alternatively which is any of 2 batch charging of Cand O, 3 batch charging of C, Cand O, 3 batch charging of C, O, O, 4 batch charging of C, C, O, Oand 4 batch charging of C, O, Cand O, and includes manufacturing fine grain ore having over 5 mm and less than 10 mm by screening and charging the fine grain ore neighbor to furnace wall of a blast furnace by using a swing chute on at least one of the Obatch and the Obatch.