Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fireproof castable for producing blast furnace iron runners and preparation method thereof
The invention relates to a fireproof castable for producing blast furnace iron runners and a preparation method thereof. The castable is composed of the following raw materials in percentage by weight: 15 to 30 wt% of high-alumina bauxite, 5 to 20 wt% of titanium-iron alloy slag, 24 to 36 wt% of fused white corundum, 10 to 16 wt% of silicon carbide, 7 to 13 wt% of alumina micropowder, 2 to 5 wt% of silicon micropowder, 2 to 5 wt% of silicon powder, 2 to 5 wt% of calcium aluminate cement, and 2 to 5 wt% of spherical asphalt. The preparation method comprises the following steps: preparing the raw materials mentioned above, adding an FDN naphthalene water reducer accounting for 0.01 to 0.07 wt% of the total weight of raw materials, sodium tripolyphosphate accounting for 0.03 to 0.12 wt% of the total weight of raw materials, and aluminum powder accounting for 0.05 to 0.2 wt% of the total weight of raw materials, carrying out dry-mixing for 1 to 3 minutes, then adding water accounting for 4 to 5.5 wt% of the total weight of raw materials, and mixing for 3 to 7 minutes so as to obtain the fireproof castable. The provided fireproof castable has the characteristics of simple technology, low production cost, recyclable raw materials, and no special requirement on equipment, and has the advantages of stable volume, high strength, excellent corrosion resistant performance, and long service life.
Fireproof castable for producing blast furnace iron runners and preparation method thereof
The invention relates to a fireproof castable for producing blast furnace iron runners and a preparation method thereof. The castable is composed of the following raw materials in percentage by weight: 15 to 30 wt% of high-alumina bauxite, 5 to 20 wt% of titanium-iron alloy slag, 24 to 36 wt% of fused white corundum, 10 to 16 wt% of silicon carbide, 7 to 13 wt% of alumina micropowder, 2 to 5 wt% of silicon micropowder, 2 to 5 wt% of silicon powder, 2 to 5 wt% of calcium aluminate cement, and 2 to 5 wt% of spherical asphalt. The preparation method comprises the following steps: preparing the raw materials mentioned above, adding an FDN naphthalene water reducer accounting for 0.01 to 0.07 wt% of the total weight of raw materials, sodium tripolyphosphate accounting for 0.03 to 0.12 wt% of the total weight of raw materials, and aluminum powder accounting for 0.05 to 0.2 wt% of the total weight of raw materials, carrying out dry-mixing for 1 to 3 minutes, then adding water accounting for 4 to 5.5 wt% of the total weight of raw materials, and mixing for 3 to 7 minutes so as to obtain the fireproof castable. The provided fireproof castable has the characteristics of simple technology, low production cost, recyclable raw materials, and no special requirement on equipment, and has the advantages of stable volume, high strength, excellent corrosion resistant performance, and long service life.
Fireproof castable for producing blast furnace iron runners and preparation method thereof
LIANG YONGHE (Autor:in) / LI CHENCHEN (Autor:in) / ZHAO HUIZHONG (Autor:in) / FENG LI (Autor:in) / NIE JIANHUA (Autor:in) / ZHANG HAN (Autor:in) / QIAO WAN (Autor:in) / YIN YUCHENG (Autor:in)
23.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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