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Environment-friendly castable for blast furnace iron runners

A castable, environmentally friendly technology, applied in the field of refractory materials, can solve problems such as health threats to operators, and achieve the effects of improving thermal shock resistance, low structure, and improving slag resistance

Inactive Publication Date: 2013-03-27
SINOSTEEL LUOYANG INST OF REFRACTORIES RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, spherical asphalt contains benzopyrene components, which will produce carcinogenic yellow smoke during high-temperature use. There are about 1% sulfur and 1% volatile matter (various alkanes and aromatic hydrocarbons) in coke. Threat to the health of the operator

Method used

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  • Environment-friendly castable for blast furnace iron runners
  • Environment-friendly castable for blast furnace iron runners
  • Environment-friendly castable for blast furnace iron runners

Examples

Experimental program
Comparison scheme
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Embodiment 1-5

[0029] Take the following components by weight:

[0030]

[0031] Mix all the components except water evenly in the mixer, add water and continue stirring to get the environment-friendly iron ditch castable.

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Abstract

The invention belongs to the field of refractory materials, and mainly relates to an environment-friendly castable for blast furnace iron runners. The castable is composed of, by weight, 50 parts to 85 parts of corundum raw materials, 8 parts to 30 parts of silicon carbide based raw materials, 1 part to 10 parts of palletized carbon black, 2 parts to 6 parts of silica fume, 1 part to 5 parts of calcium aluminate cement, 0.3 part to 3 parts of antioxidants, 0.1 part to 0.3 part of water reducing agents, 0.01 part to 0.2 part of wetting agents and 3.2 parts to 5 parts of water. The environment-friendly castable has the advantages of being low in water addition, high in carbon content, compact in structure, large in hot strength and excellent in anti-scouring performance, not causing site environment pollution in a construction utilization process, and being environment-friendly.

Description

technical field [0001] The invention belongs to the field of refractory materials, and mainly relates to an environment-friendly pouring material for iron trenches of blast furnaces. Background technique [0002] Blast furnace iron trough is the channel through which high-temperature molten iron and slag flow. With the development of large-scale blast furnace, the amount of iron passing increases, the time of iron passing is prolonged, and the interval between tapping iron is shortened. Require. The current blast furnace iron channel is usually made of A12O3-SiC-C castables. As a carbonaceous material, the spherical pitch can prevent the slag from penetrating into the material, improve the corrosion resistance of the material, and also improve the thermal conductivity of the material. To improve the thermal shock stability, reduce the structural spalling and cracking of the material, thereby improving the performance of the iron trench castable. [0003] The literature [In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 韦祎王守业惠先磊张海燕张三华王战民禄向阳
Owner SINOSTEEL LUOYANG INST OF REFRACTORIES RES
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