High-temperature-resistant and anti-burn sleeper protective castable

Abstract

The invention belongs to the technical field of refractory materials, in particular relates to high-temperature-resistant and anti-burn sleeper protective castable and aims to solve the technical problem of providing castable. Raw materials of the castable comprise the following components in percentage by weight: 18-22% of corundum slag of which the particle size is 3-8mm, 16-30% of corundum slagof which the particle size is 2-5mm, 8-20% of flint clay of which the particle size is 1-3mm, 8-13% of flint clay of which the particle size is 0.074-1mm, 9-15% of alumina powder, 1-4% of Guangxi white clay, 4-8% of aluminum oxide micro powder, 5-13% of CA-60, 1-3% of silica dust powder and 4-8% of magnesite-chrome brick powder, and sodium hexametaphosphate which accounts for 0.1-0.4% of the total weight of the raw materials, stainless steel fiber which accounts for 0.3-0.6% of the total weight of the raw materials, and anti-explosion fiber which accounts for 0.03-0.06% of the total weight ofthe raw materials are additionally added. The sleeper protective castable provided by the invention has the advantages of being good in high temperature resistance, good in impact resistance, stablein thermodynamic property, and the like.

Description

technical field [0001] The invention belongs to the technical field of refractory materials involved in the treatment of blast furnace slag, and in particular relates to a high-temperature-resistant and anti-burning protective castable for sleepers. Background technique [0002] After the molten iron flows out of the taphole, it is separated from slag and iron, and the liquid slag passes through the lower slag ditch and is blocked by the slag stacking gate into the slag tank. Taking Xichang Iron and Steel Vanadium Ironmaking Plant as an example, there are nearly 30 slag tanks for dumping high Slag: After tapping, the slag tank filled with blast furnace slag is transported by rail to the blast furnace slag treatment site. [0003] The blast furnace slag is tipped into the hot slag chute, and the blast furnace slag is treated reasonably. The vertical height between the slag tunnel and the slag tank is about 5m. Each slag tank transports 12 slag tanks, and each slag tank holds ...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a high temperature resistant and anti-burning protective castable for sleepers, which can solve the probl

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