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2019-08-22
The ramming mass used in the blast furnace and the hot blast stove main body mainly include silicon carbide ramming material, carbon ramming material and scrap iron filing material. This series of ramming materials mainly uses high-quality silicon carbide, carbon materials and pig scrap iron as the main materials, so it has good thermal conductivity and fire resistance. This product is mainly used for blast furnace stave or hot blast stove ball top bricks to be around the circle, which can accelerate heat dissipation, and has obvious superiority in extending furnace life and improving production efficiency.
Product Parameter:
Product Type | silicon carbide ramming mass | carbon ramming mass | scrap iron filing material | |
Product Model | XPTD | XPTS | XPTT | |
chemical composition（%） | Al2O3 | - | ≥20 | - |
SiC | 20-75 | - | ≥60 | |
F.C | - | ≥20 | - | |
bulk density（g／cm3） | 110℃×24h | ≥2.0 | ≥1.7 | ≥3.0 |
compressive strength（MPa） | 110℃×24h | ≥15 | ≥18 | ≥2.0 |
1000℃×3h | ≥10 | ≥12 | - | |
bending strength（MPa） | 110℃×24h | ≥6.0 | ≥5.0 | ≥4.0 |
1000℃×3h | ≥1.5 | - | - | |
post-fire line change（%） | 1000℃×3h | ≤±1.0 | - | ≤±0.5 |
heat conductivity W/m.k(350℃) | ≥5.0 | ≥4.0 | ≥5.0 | |
Applicable part | filling the gap between bosh cooling wall and baked microscopic alumina carbon brick；the gap between cooling walls; the gap between cooling wall and wind gate; the gap between cooling walls and taphole frame | |||
Comment | These product parameter is just a sample, not the guarantee value of Xingping Refractory. Based on the specific condition such as smelting products and operating approach of each blast furnace, we could provide customized products to achieve the best effect. | |||
