The invention discloses a charging material for blast-furnace
smelting and a blast-furnace
smelting method. The charging material for blast-furnace
smelting comprises components in parts by weight asfollows: 60-85 parts of alkaline sintered ore, 10-20 parts of acid
pellets and 0-5 parts of geological minerals, wherein
alkalinity of the alkaline sintered ore is 2.2-2.3, and
alkalinity of the acidpellets is 0.2-0.4; the alkaline sintered ore is prepared from 40-50 parts by weight of
vanadium bearing
titanomagnetite, 5-10 parts by weight of common fine
iron powder, 5-15 parts by weight of
boron-bearing
iron ore powder, 1-5 parts by weight of SiC
powder and 6-10 parts by weight of CaO as raw materials through
sintering; the acid
pellets are prepared from 50-60 parts by weight of the vanadiumbearing
titanomagnetite, 5-10 parts by weight of common fine
iron powder, 1-2 parts by weight of
magnesite, 3-5 parts by weight of
dolomite and 1-2 parts by weight of
bentonite as raw materials through
sintering. According to the blast-furnace smelting method adopting the charging material for blast-furnace smelting, liquidity of iron
slag can be guaranteed, a
slag charge structure is changed,
slag basicity is reduced, effective availability of the charging material for blast-furnace smelting is improved, blast-furnace smelting efficiency is improved, and smelting cost is reduced.