FIELD: metallurgy.
SUBSTANCE: invention relates to production of cast iron or steel semis. In compliance with this invention, metal-bearing stock is reduced, at least partially, in reduction zone with the help of reduction gas, fed in fusion zone and smelted at feed of carbon carriers and oxygen-bearing gas to form reduction gas. Said formed gas is fed to reduction zone wherein it is converted and bled as export gas. Carbon dioxide is separated from export gas to use formed gaseous product for delivery of carbon carrier powders to fusion zone. Note here that gaseous product is fed to at least one mixing chamber along with said carbon carrier powders and transfer gas, nitrogen in particular, to fusion zone.
EFFECT: power reducing, agent saving.
17 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING MELT OF IRON OR SEMIPRODUCT OF STEEL AND ALSO OF SPONGE IRON FROM IRON ORE AND PLANT FOR ITS EMBODIMENT | 1995 |
|
RU2135597C1 |
| DEEPENING OF OXYGEN JET PENETRATION | 2011 |
|
RU2583558C2 |
| METHOD FOR CAST-IRON MELTING WITH RETURN OF BLAST FURNACE GAS AT ADDITION OF HYDROCARBONS | 2009 |
|
RU2496884C2 |
| METHOD AND DEVICE FOR CONTROL OF PROCESS OF REDUCTION SMELTING | 2009 |
|
RU2515974C2 |
| METHOD AND DEVICE FOR INTRODUCING A FINE-DISPERSED MATERIAL IN A FLUIDIZED LAYER OF A RESTORABLE UNIT WITH A FLUIDIZED LAYER | 2013 |
|
RU2630136C2 |
| METHOD OF CONTINUOUS FUSION OF SULFIDE MATERIALS | 1990 |
|
RU2020170C1 |
| METHOD AND APPARATUS FOR PRODUCING CAST IRON AND/OR SPONGE IRON, AND APPARATUS OPERATION METHOD | 1995 |
|
RU2134301C1 |
| METHOD OF PRODUCTION OF HOT REDUCING GAS FOR REDUCTION OF METAL ORE AND PLANT FOR REALIZATION OF THIS METHOD | 1997 |
|
RU2192476C2 |
| METHOD OF PRODUCING LIQUID CAST IRON | 2017 |
|
RU2689342C1 |
| PROCESS AND APPARATUS FOR REDUCING IRON OXIDE AND PRODUCING MOLTEN CRUDE IRON | 0 |
|
SU938747A3 |
