FIELD: ferrous metallurgy; production of cast iron in blast furnaces.
SUBSTANCE: proposed method includes charging coke with additive into central part of blast furnace at ratio of 1:4-1:20; said additive is used for washing the hearth; it contains iron monooxide in the amount of 20-40% at size of 5-200 mm in the amount of 2.5-10% of total consumption of ore burden. Used as additives for washing the hearth is agglomerate or iron-containing briquettes or ore at content of iron monoxide of 20-25%.
EFFECT: increased output of blast furnace; low cost of cast iron.
4 cl, 6 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| BLAST-FURNACE SMELTING METHOD | 2011 |
|
RU2469099C1 |
| METHOD TO PRODUCE WUSTITE PRODUCT FOR FLUSHING OF BLAST FURNACE HEARTH | 2012 |
|
RU2516428C2 |
| METHOD OF A BLAST-FURNACE MELTING | 2004 |
|
RU2262535C1 |
| METHOD OF WASHING THE BLAST FURNACE HEARTH | 2005 |
|
RU2303070C2 |
| METHOD OF BLAST-FURNACE MELTING | 2008 |
|
RU2359041C1 |
| METHOD OF IRON SMELTING IN BLAST FURNACE | 2001 |
|
RU2207381C1 |
| BRIQUETTE FOR MELTING OF MANGANESE-CONTAINING CAST IRON | 2005 |
|
RU2308493C2 |
| METHOD OF FLUSHING OF BLAST-FURNACE HEARTH | 1998 |
|
RU2136761C1 |
| EXTRUSION-TYPE BRIQUETTE (BREKS) - COMPONENT OF BLAST-FURNACE CHARGE | 2012 |
|
RU2506326C2 |
| CAKE FOR THE BLAST FURNACE HEARTH PURGING | 2005 |
|
RU2294389C1 |
