FIELD: metallurgy.
SUBSTANCE: method includes charging a blowing-in burner into a blast furnace, monitoring of its quality and placement in a furnace, a gas-blowing mode, providing for the process of the blowing-in period of the furnace operation. The iron-ore component of the blowing-in burden is a blowing-in agglomerate with iron content of ≤ 57% at the ratio of CaO/SiO2 ≤ 0.95. The thermal mode of blowing-in burden melting is regulated by variation of ore load within the limits of achievement of the normal thermal mode.
EFFECT: reduced specific consumption of coke in blowing-in period, accelerated heating and taking a furnace to operating parameters, production of composition and properties of melting products that are close to rated ones during first runs.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| 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 OF WASHING THE BLAST FURNACE HEARTH | 2005 |
|
RU2303070C2 |
| METHOD OF BLOWING-IN BLAST FURNACE | 1999 |
|
RU2163641C1 |
| METHOD FOR STOPPING BLAST FURNACE WITH GAS IGNITION ON THE GRATE | 0 |
|
SU905284A1 |
| METHOD OF BLAST-FURNACE SMELTING | 1999 |
|
RU2150510C1 |
| CHARGE FOR PRODUCTION OF BLOWING AGGLOMERATE | 2018 |
|
RU2679811C1 |
| METHOD OF BLAST-FURNACE BLOWING-IN | 1999 |
|
RU2164242C2 |
| BLAST-FURNACE SMELTING METHOD | 2016 |
|
RU2625620C1 |
| BLAST FURNACE WASHING METHOD | 2014 |
|
RU2547390C1 |
