VERFAHREN UND ANLAGE ZUR GEWINNUNG VON FLUESSIGEM ROHEISEN ODER STAHLVORPRODUKTEN AUS STUECKIGEN, EISENOXIDHAELTIGEN EINSATZSTOFFEN.

摘要

The charging materials (4) are reduced in a direct-reduction zone (2) to iron sponge, the iron sponge is smelted in a fusion- gasification zone (15) with feeding carbon carriers and oxygen-containing gas, which form a fluidised coal bed, and a reducing gas containing CO and H2 is produced which is passed into the direct-reduction zone (2) and reacted therein. …For economical utilisation of inferior scrap qualities such as, for example, consumer scrap,… a) scrap is charged into the fusion-gasification zone (15) in addition to the iron sponge,… b) the scrap has a bulk density of between 300 and 1000 kg/m<3>, preferably between 400 and 600 kg/m<3>, and… c) the temperature of the fluidised coal bed is held at 1500 to 1700 DEG C, the scrap passing through the fluidised coal bed while reducing conditions are maintained, is carburised and melted, and any organic impurities present are pyrolysed. ……