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

A technology of high temperature resistance and castable, applied in the field of refractory materials, can solve the problems of burning loss, loose track spikes, track deformation, etc., and achieve the effects of excellent sticking iron, good thermal shock resistance and high refractoriness

Inactive Publication Date: 2020-02-14
GANGCHENG GRP LIANGSHAN RUIHAI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 problems of serious burning loss of wooden sleepers during blast furnace slag dumping, resulting in loose track spikes and track deformation.

Method used

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

Examples

Experimental program
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Effect test

Embodiment

[0047] Send 19% of 3mm-8mm corundum slag, 26% of 2-5mm corundum slag, 11% by weight of 1-3mm burnt gemstone, and 13% of 0.074mm-1mm burnt gemstone into the drum mixer for testing. Mix and stir, after mixing and stirring for 2 minutes, add 9% of 0<particle size≤0.074mm alumina powder, 6% of 0<particle size≤0.005mm activated alumina powder, 8% of 0<particle size≤0.074mm CA60 cement, 2% silica dust powder with 0<particle size≤0.074mm, 2% Guangxi white clay with 0<particle size≤0.074mm, 4% magnesia-chrome brick powder with 0<particle size≤0.074mm and the total of the above raw materials 0.2% by weight of industrial grade sodium hexametaphosphate, 0.4% of stainless steel fiber, and 0.04% of explosion-proof fiber are fed into the drum mixer for mixing and stirring. After mixing and stirring, the mixed material is discharged through the outlet valve Put the device into a dry bag, pack it in 25kg / bag, fasten the opening mark and put it in storage for later use. See Table 4 for the phy...

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PUM

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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 ...

Claims

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Application Information

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IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3206C04B2235/3217C04B2235/3241C04B2235/349C04B2235/447C04B2235/5216
Inventor 青光红张静罗天军唐贵川黄天翔赵杰温宁胡孝文李海林王小波郑云
Owner GANGCHENG GRP LIANGSHAN RUIHAI IND
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