| 摘要 |
<p>A method for producing pig iron by direct processing of iron-containing materials such as iron-containing sands, in which the iron-containing materials and carbonaceous reductant are mixed with a fluxing agent to form a mixture; briquettes or agglomerates are formed from the mixture; at least a portion of the agglomerates are preheated to a temperature of 750 to 1200° C and are pre-reduced, then the preheated, pre-reduced agglomerates are introduced into the melting furnace; the agglomerates are melted at a temperature of from 1300 to 1760° C and form hot metal with a slag thereon; the slag is removed and the hot metal is tapped as pig iron, and the off-gas from the smelter is used to operate a preheater for the agglomerates.</p> |
