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Slag antiseizing spraying material for desulfurization hot-metal bottle

A technology of anti-sticking slag and spraying paint, which is applied in the field of spraying paint, can solve the problems of refractory material consumption and high desulfurization cost, and achieve the effects of improving the adaptability of rapid baking, wide source of raw materials, and improving utilization rate

Inactive Publication Date: 2007-10-31
WUHAN IRON & STEEL (GROUP) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of high refractory consumption and high desulfurization cost of desulfurized iron ladles existing in the prior art, and further provides a low-cost, easy-to-prepare and simple-to-use desulfurized iron ladle anti-sticking slag spray coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Prepare 100 kg of desulfurized iron ladle anti-sticking slag spray coating:

[0019] Its raw material composition and weight percentage are: 70.7 kg of corundum (aluminum) silicon carbide carbonaceous waste bricks that have undergone slag removal or iron removal treatment, of which 14.14 kg for particle sizes of 3-1 mm, 1-0.088 mm and <0.088 mm , 31.82 kg and 24.74 kg; 12 kg of clay powder passed through a 100-mesh sieve, 7 kg of bauxite cement, 1.8 kg of Portland cement, 3 kg of silicon micropowder, 2 kg of short inorganic fibers with a fiber length of 2 to 8 mm, passed through 100 3 kilograms of earthy graphite powder of mesh sieve, 0.5 kilogram of sodium tripolyphosphate, add above-mentioned raw material in the stirrer and stir evenly, promptly obtain required spray paint, and pack in bag.

Embodiment 2

[0021] Prepare 100 kg of desulfurized iron ladle anti-sticking slag spray coating:

[0022] Its raw material composition and weight percentage are: 82 kg of aluminum silicon carbide carbonaceous waste bricks that have undergone slag removal or iron removal treatment, of which 16.4 kg and 36.9 kg for particle sizes of 3-1mm, 1-0.088mm and <0.088mm respectively and 28.7 kg, 7 kg of clay powder passing through a 100-mesh sieve, 5 kg of bauxite cement, 2.8 kg of Portland cement, 2 kg of silicon micropowder, 1 kg of short inorganic fiber with a fiber length of 2 to 8mm, and 0.2 kg of sodium tripolyphosphate. kg, add the above raw materials into the mixer and stir evenly to get the required spray paint, and pack it in bags.

Embodiment 3

[0024] Prepare 100 kg of desulfurized iron ladle anti-sticking slag spray coating:

[0025] Its raw material composition and weight percentage are: 86 kg of magnesia silicon carbide carbonaceous waste bricks that have undergone slag removal or iron removal treatment, of which 17.2 kg and 38.7 kg for particle sizes of 3-1mm, 1-0.088mm and <0.088mm respectively and 30.1 kg, 2 kg of clay powder passing through a 100-mesh sieve, 4 kg of bauxite cement, 1 kg of Portland cement, 1 kg of silicon micropowder, 4.4 kg of soil-like graphite powder passing through a 100-mesh sieve, with a fiber length of 2 to 8mm 1.5 kg of short inorganic fibers, 0.1 kg of sodium hexametaphosphate, put the above raw materials into the mixer and stir evenly to obtain the required spray coating, and pack it in bags.

[0026] Concretely, in 100 tons of injection desulfurization, the tank nozzle, tank edge and slag line position in the desulfurization molten iron tank that are easy to stick to slag, adopt the...

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Abstract

The invention discloses an antiseize slag spraying material for sulfur removal hot iron tank, which comprises the following steps: allocating mass percent with 70-90% carbonaceous fireproof material waste brick, 4-8% alumina cement, 1-3% silicate cement, 1-3% silicon micronized quartz powder, 2-13% clay, 0-5% soil carbite, 0. 5-3% inorganic staple fiber and 0. 1-0. 5% phosphate; getting the product. This invention possesses wide raw material source, low cost and good using effect.

Description

technical field [0001] The invention relates to a spray paint, in particular to an anti-sticking slag spray paint for preventing desulfurization molten iron tanks from sticking to slag. Background technique [0002] During the desulfurization process of molten iron, slagging of iron on the nozzle, edge and slag line of the desulfurized hot metal tank is gradually serious, resulting in an increase in the weight of the empty tank and a shift of the center of gravity, which seriously affects the production organization and production safety of ironmaking and steelmaking; At the same time, because the sticky slag is very hard and firmly combined with the tank lining, it is very difficult to remove, so it has to be dismantled and overhauled in advance, resulting in a short service life of the desulfurized iron ladle, tight turnover and increased consumption of refractory materials. For desulfurized hot metal tanks with less sticky slag, the common treatment method for sticky slag...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B7/02C04B7/32C04B18/16C04B14/04C04B14/10C04B14/38C04B22/16
CPCY02W30/91
Inventor 欧阳德刚罗安智胡清明王清方
Owner WUHAN IRON & STEEL (GROUP) CORP
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