FIELD: technological processes; metallurgy.
SUBSTANCE: invention is related to the field of ferrous metallurgy, in particular to blast-furnace production. Method includes supply of combined blast, loading of blowing charge coke into peripheral zone of furnace with fraction of more than 40 mm and thermal treatment of fire-resistant lining with provision of gas-charge medium temperature in the area of lining gunning in interval of 750-1400°C for 5-8 hours from the moment temperature of 750°C has been achieved, and further blast mode and system of loading according to parameters of blowing period and working mode of blast furnace.
EFFECT: increased service life of lining and increased production of smelt liquid products in overhaul periods.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR BLOWING-IN OF BLAST FURNACE | 2002 |
|
RU2235788C2 |
| METHOD OF STOPPING BLAST FURNACE WITH GAS IGNITION ON MOUTH AND SUBSEAUENT BLOW-IN | 0 |
|
SU1774953A3 |
| METHOD OF CHARGING BLOWING-IN BURDEN AT BLAST FURNACE BLOWING-DOWN | 0 |
|
SU1804486A3 |
| METHOD FOR STOPPING BLAST FURNACE WITH GAS IGNITION ON THE GRATE | 0 |
|
SU905284A1 |
| METHOD OF BLAST FURNACE BLOWING IN | 0 |
|
SU1694648A1 |
| METHOD OF BLOWING-IN BLAST FURNACE | 1999 |
|
RU2163641C1 |
| METHOD OF BLAST-FURNACE BLOWING-IN | 1999 |
|
RU2164242C2 |
| METHOD FOR CREATING PROTECTION LINING SLAG ON LINING OF HEARTH AND WELL OF BLAST FURNACE | 2005 |
|
RU2291199C1 |
| METHOD FOR START BLOWING OF BLAST FURNACE | 2002 |
|
RU2216597C1 |
| PROCESS OF BLAST-FURNACE MELTING | 1998 |
|
RU2147037C1 |
