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Preparation method of flexible electric arc furnace sealing thermal insulation material
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An insulation material and electric arc furnace technology, applied in the field of preparation of flexible electric arc furnace sealing insulation materials, to achieve the effect of increasing the shaping strength, reasonable formula, and shortening the melting time
Active Publication Date: 2019-03-12
郑州远东耐火材料有限公司
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Problems solved by technology
In addition to raw material costs, labor costs, and equipment costs in the production process of electric fused bricks, there is another big consumption that is power consumption. The power consumption required to melt each ton of electric fused brick batch materials into a liquid can reach 2500°C to 3000°C , very few manufacturers can achieve power consumption per ton of feed liquid at around 1700°C
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Embodiment 1
[0016] The preparation method of the flexible electric arc furnace sealing insulation material in this embodiment comprises the following steps:
[0017] (1) Preparation of powder
[0018] Mix 85% by weight silicon powder, 10% by weight zircon powder, and 5% by weight soda ash;
[0022] Soak the glass wool in the soaking solution for 20 minutes, then take it out and dry it.
[0023] The particle size of the silicon powder and zircon powder is more than or equal to 200 mesh; the thickness of the glass wool is 20mm.
Embodiment 2
[0025] The preparation method of the flexible electric arc furnace sealing insulation material in this embodiment comprises the following steps:
[0026] (1) Preparation of powder
[0027] Mix 90% by weight silicon powder, 6% by weight zircon powder, and 4% by weight soda ash;
[0028] (2) Preparation of soaking solution
[0029] Add the powder into an aqueous solution of sodium polyacrylate with a mass fraction of 0.5%, stir evenly, and the weight ratio of the powder to the aqueous solution of sodium polyacrylate is 1:9;
[0031] Soak the glass wool in the soaking solution for 25 minutes, then take it out and dry it.
[0032] The particle size of the silicon powder and zircon powder is more than or equal to 200 mesh; the thickness of the glass wool is 20mm.
Embodiment 3
[0034] The preparation method of the flexible electric arc furnace sealing insulation material in this embodiment comprises the following steps:
[0035] (1) Preparation of powder
[0036] Mix 92% by weight silicon powder, 5% by weight zircon powder, and 3% by weight soda ash;
[0037] (2) Preparation of soaking solution
[0038] Add the powder into an aqueous solution of sodium polyacrylate with a mass fraction of 0.5%, stir evenly, and the weight ratio of the powder to the aqueous solution of sodium polyacrylate is 1:10;
[0039] (3) Treatment of glass wool
[0040] Soak the glass wool in the soaking solution for 30 minutes, then take it out and dry it.
[0041] The particle size of the silicon powder and zircon powder is more than or equal to 200 mesh; the thickness of the glass wool is 20mm.
[0042] In the formula of the present invention, siliceous powder is added to the glass wool fiber, and the strength of the glass wool fiber can be increased through high-temperat...
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Abstract
The invention relates to a preparation method of a flexible electric arc furnace sealing thermal insulation material. The technical scheme includes that the preparation method includes the steps: (1)uniformly mixing, in weight percent, 85-92% of siliconpowder, 5-10% of zirconpowder and 3-5% of sodiumcarbonate; (2) adding the powder into 0.5% of sodium polyacrylate water solution in weight percent, uniformly stirring the powder and the sodium polyacrylate water solution with the weight ratio of 1:(8-10); soaking glass wool in soaking solution for 20-30 minutes, and taking out and airing theglass wool to obtain the flexible electric arc furnace sealing thermal insulation material. The flexible electric arc furnace sealing thermal insulation material has flexibility and strength and caneffectively stop electric arc furnace heat loss, experiments verify that after an electric arc furnace heat loss hole is closed, feed liquid in a furnace can be melted in advance, power consumption ofper ton of solution can be reduced by 200 kilowatt-hours or more, power consumption can be saved by 5000 kilowatt-hours when 25 tons of electric melting bricks are produced per day, energy consumption is greatly reduced, melting time is shortened, capacity is directly improved, and more products can be produced in the same time.
Description
technical field [0001] The invention relates to a preparation method of a flexible electric arc furnace sealing and heat preservation material. Background technique [0002] The main material of masonry glass kiln is zirconiumcorundum electric fused brick. The production of electric fused brick is through the mixing of zircon sand, alumina powder and a small amount of soda ash to form a batch material, which is added to an electric arc furnace for high temperature melting at 2000 ℃ to become a material liquid. Then it is cast into the cavity of the sand mold, and after a period of heat preservation and annealing, it is the rough brick of the electric fused brick. In addition to raw material costs, labor costs, and equipment costs in the production process of electric fused bricks, there is another big consumption that is power consumption. The power consumption required to melt each ton of electric fused brick batch materials into a liquid can reach 2500°C to 3000°C , Very...
Claims
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Application Information
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