Криворізький Державний Гірничо-Металургійний Комбінат "Криворіжсталь"
Криворожский Государственный Горно-Металлургический Комбинат "Криворожсталь"
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Publication of UA49247ApublicationCriticalpatent/UA49247A/en
A blast smelting method is performed by loading an iron-ore burden, a coke, the additions and a slag into a furnace group for up to 500 kg/ton of a pig iron producing. After the metal containing component from the converter slag extracting it is charging into the blast furnaces operating with more of raw flux in the slag content, and the metal containing component is charging into the blast furnaces operating with a higher direct recovering degree. The converter slag is mixed with the non-fluxed burden, for example with the ore or with the non-fluxed pellets. The metal containing component is mixed with the oxidized materials, for example, with the welding slag, or is inserting at the furnace cross section at which the СО2 in the fire bars gas content is higher than the average content for the cross section area in the whole.
Process for producing pig iron, nonferrous heavy metal alloys, FECR and synthetic blast furnace slags using metal-oxide-containing waste incineration residues or slags