PROCESS FOR PRODUCING LIQUID PIG IRON OR SEMI-FINISHED STEELPRODUCTS AND INSTALLATION FOR IMPLEMENTING IT

摘要

In a process for producing liquid pig iron (12) or semi-finished steel products from finely divided iron-containing material, especially reduced iron sponge, the iron-containing material is melted in a melting gasifying region (6) of a melt gasifier (5) with the addition of carbon-containing material and oxygen-containing gas with the simultaneous formation of a reducing gas in a bed (16) consisting of solid carbon carriers. To prevent the separation of the fine particles of the iron-containing material loaded into the melt gasifier, the iron-containing material is inserted into the melt gasifier (5) by means of an oxygen burner (15) forming a high-temperature burning region (21) centrally just above the bed (16), but in its immediate vicinity.