| 摘要 |
The present invention provides a method of producing sintered ore and a sintering machine to which the method is applied, the product yield and the quality of which are high, and the method of producing sintered ore comprises the steps of: charging blended raw material containing fine ore, flux and fuel onto pallets of a sintering machine so as to form a raw mixture bed on the pallets; and igniting a surface layer of the raw mixture bed so as to conduct a sintering reaction on the raw mixture bed from an upper portion to a lower portion, wherein when the upper layer of the raw material has been sufficiently sintered, a mass flow rate of gas containing oxygen supplied onto the raw mixture bed layer is changed to a value 1.01 to 2.6 times as high as that of gas containing oxygen supplied in the case of sintering the upper layer of the raw material. It is preferable that when an end of the combustion and melting zone has reached a position lower than the position located at 20% of the height of the raw mixture bed from the surface layer, a mass flow rate of gas containing oxygen supplied onto the raw material layer is changed to a value described above. <IMAGE> |
