| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for charging raw materials into a bell-type blast furnace by which segregation in the circular direction and the radius direction in the furnace of little quantity of ore-layer raw material, such as a little quantity of brand of bulky ore and sub-raw material, can remarkably be reduced. SOLUTION: In the method for charging the raw materials into the bell-type blast furnace, by which a plurality of kinds of the ore layer raw materials 4, are respectively taken out from a raw material hopper 1 and loaded on a belt-conveyor 2a and charged into the furnace 13; in the whole ore layer raw materials 4 charged with one batch, a little quantity ore layer raw material 4a having≤10% blending ratio occupied in the whole ore layer raw materials 4, is divided into two sections and taken out from the raw material hopper 1 and arranged at the top part and the rear part in the loaded range of the whole ore layer raw materials 4 on the belt conveyor 2a. COPYRIGHT: (C)2011,JPO&INPIT |
