Pouring material and single-iron notch blast furnace iron storage type tapping main channel using same
A technology of castables and blast furnaces, which is applied in the field of improving the structure and formula of castables for iron storage type tapping main channels of single taphole blast furnaces. The effect of service life, improving economic benefits and saving material costs
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Embodiment 1
[0020] The formula of castable for single taphole blast furnace iron storage type tapping main ditch includes the first half (ie: the first half of the iron drop point) and the second half (ie: the second half of the main ditch), and the first half and the second half use Different formulas, the mass ratio of each component in the first half is: brown corundum or dense corundum: 42 parts, silicon carbide: 28 parts, white corundum: 16 parts, α-Al 2 o 3 : 5 parts, silica powder: 2 parts, spherical pitch: 5 parts, metal silicon powder: 3 parts, chromium oxide: 0.2 parts, boron nitride: 0.6 parts, nano-silicon aluminum gel powder: 1.2 parts, pure calcium aluminate Cement: 2 parts, organic fiber: 0.1 part, metal aluminum powder: 0.1 part, rubidium hydroxide: 0.1 part, first composite additive: 2 parts; the mass ratio of each component in the second half is: brown corundum or dense corundum: 42 parts, silicon carbide: 28 parts, white corundum: 16 parts, α-Al 2 o 3 : 5 parts, sili...
Embodiment 2
[0022] The formula of castable for single taphole blast furnace iron storage type tapping main ditch includes the first half (ie: the first half of the iron drop point) and the second half (ie: the second half of the main ditch). The first half and the second half use different The formula, the mass ratio of each component in the first half is: brown corundum or dense corundum: 45 parts, silicon carbide: 25 parts, white corundum: 17 parts, α-Al 2 o 3 : 4 parts, silica powder: 3 parts, spherical pitch: 4.8 parts, metal silicon powder: 3.3 parts, chromium oxide: 0.3 parts, boron nitride: 0.8 parts, nano-silicon aluminum gel powder: 1.4 parts, pure calcium aluminate Cement: 1.8 parts, organic fiber: 0.2 parts, metal aluminum powder: 0.1 parts, rubidium hydroxide: 0.08 parts, first composite additive: 2.2 parts; the mass ratio of each component in the second half is: brown corundum or dense corundum: 45 parts, silicon carbide: 25 parts, white corundum: 18 parts, α-Al 2 o 3 : 4 ...
Embodiment 3
[0024] The formula of castable for single taphole blast furnace iron storage type tapping main ditch includes the first half (ie: the first half of the iron drop point) and the second half (ie: the second half of the main ditch). The first half and the second half use different The formula, the mass ratio of each component in the first half is: brown corundum or dense corundum: 40 parts, silicon carbide: 30 parts, white corundum: 15 parts, α-Al 2 o 3 : 6 parts, silica powder: 1 part, spherical pitch: 5 parts, metal silicon powder: 4 parts, chromium oxide: 0.2 parts, boron nitride: 0.7 parts, nano-silica aluminum gel powder: 1.3 parts, pure calcium aluminate Cement: 2.4 parts, organic fiber: 0.2 parts, metal aluminum powder: 0.1 parts, rubidium hydroxide: 0.09 parts, the first composite additive: 2.3 parts; the mass ratio of each component in the second half is: brown corundum or dense corundum: 40 parts, silicon carbide: 30 parts, white corundum: 15.3 parts, α-Al 2 o 3 : 4....
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