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Castable for branch iron trough of 1,250 m<3> blast furnace
The invention relates to a castable for a branch iron trough of a 1,250 m<3> blast furnace. The castable comprises a main material and an admixture, wherein the main material comprises components in parts by weight as follows: 5-8 parts of 8-5-mm aluminum silicate, 15-20 parts of 5-3-mm chromium nitride, 10-15 parts of 3-1-mm sillimanite, 8-15 parts of 1-0-mm calcium chromite, 2-5 parts of meta-clay powder, 3-7 parts of cobalt oxide aluminum powder, 5-10 parts of cutting powder, 3-8 parts of amorphous graphite powder, 1-2 parts of composite carbon powder, 0-3 parts of molybdenum trioxide powder, 3-5 parts of alumina micro-powder, 1-5 parts of magnesium oxide iron powder, 1-3 parts of rho alumina and 0-5 parts of fused pure calcium aluminate cement; in terms of the total parts by weight of the main material being 100%, the admixture comprises 0.1-0.2 parts by weight of calcium lignosulphonate, 0.01-0.05 parts by weight of nano dried potato powder, 0.01 parts by weight of malic acid and 0.1 parts by weight of C12H14N4O5S2. The blast furnace iron trough prepared from the castable has the characteristics of good thermal shock resistance, good erosion resistance, high iron flux and long service life.
Castable for branch iron trough of 1,250 m<3> blast furnace
The invention relates to a castable for a branch iron trough of a 1,250 m<3> blast furnace. The castable comprises a main material and an admixture, wherein the main material comprises components in parts by weight as follows: 5-8 parts of 8-5-mm aluminum silicate, 15-20 parts of 5-3-mm chromium nitride, 10-15 parts of 3-1-mm sillimanite, 8-15 parts of 1-0-mm calcium chromite, 2-5 parts of meta-clay powder, 3-7 parts of cobalt oxide aluminum powder, 5-10 parts of cutting powder, 3-8 parts of amorphous graphite powder, 1-2 parts of composite carbon powder, 0-3 parts of molybdenum trioxide powder, 3-5 parts of alumina micro-powder, 1-5 parts of magnesium oxide iron powder, 1-3 parts of rho alumina and 0-5 parts of fused pure calcium aluminate cement; in terms of the total parts by weight of the main material being 100%, the admixture comprises 0.1-0.2 parts by weight of calcium lignosulphonate, 0.01-0.05 parts by weight of nano dried potato powder, 0.01 parts by weight of malic acid and 0.1 parts by weight of C12H14N4O5S2. The blast furnace iron trough prepared from the castable has the characteristics of good thermal shock resistance, good erosion resistance, high iron flux and long service life.
Castable for branch iron trough of 1,250 m<3> blast furnace
WAN YANJIE (author)
2015-12-30
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Castable for branch iron trough of 3,000 m<3> blast furnace
| European Patent Office | 2015