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Ladle lining repair material as well as preparation method and application thereof

A repairing material and lining technology, which is applied in the field of refractory materials, can solve the problems of high cost and unfriendly environment, and achieve the effects of improving service life, being friendly to the environment and having strong corrosion resistance

Inactive Publication Date: 2019-04-26
河南竹林庆州耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the high-alumina bauxite aggregate or corundum aggregate used in the above-mentioned prior art has high cost and is not friendly to the environment, the present invention provides a ladle lining repair material and its preparation method and application

Method used

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  • Ladle lining repair material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A ladle lining repair material, expressed in weight percent, consists of the following raw materials:

[0027] 35% of regenerated corundum aggregate of 5-3mm, 15% of regenerated corundum aggregate of 3-1mm, 20% of regenerated corundum aggregate of 1-0mm, 10% of corundum fine powder 2 o 3 Micropowder 4%; additionally add 0.2% sodium tripolyphosphate accounting for the total weight of the above raw materials as a water reducer and 0.1% explosion-proof fiber (diameter 40 μm, length 2-3 mm).

Embodiment 2

[0029] A ladle lining repair material, expressed in weight percent, consists of the following raw materials:

[0030] 30% of regenerated corundum aggregate of 5-3mm, 10% of regenerated corundum aggregate of 3-1mm, 15% of regenerated corundum aggregate of 1-0mm, 15% of corundum fine powder 2 o 3 Micropowder 6%; additionally add 0.2% sodium hexametaphosphate accounting for the total weight of the above raw materials as a water reducer and 0.1% explosion-proof fiber (diameter 40 μm, length 2-3 mm).

Embodiment 3

[0032] A ladle lining repair material, expressed in weight percent, consists of the following raw materials:

[0033] 25% of regenerated corundum aggregate of 5-3mm, 15% of regenerated corundum aggregate of 3-1mm, 20% of regenerated corundum aggregate of 1-0mm, 15% of corundum fine powder 2 o 3 Micropowder 5%; additionally add 0.2% sodium tripolyphosphate accounting for the total weight of the above raw materials as a water reducer and 0.1% explosion-proof fiber (diameter 60 μm, length 2-3 mm).

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Abstract

The invention relates to a ladle lining repair material. The ladle lining repair material is prepared from 5 to 3 mm recycled corundum aggregate, 3 to 1 mm recycled corundum aggregate, 1 to 0 mm recycled corundum aggregate, less than 88 [mu]m corundum fine powder, less than 88 [mu]m magnesia powder, less than 88 [mu]m soft clay fine powder, less than 88 [mu]m calcium aluminate cement, less than 5[mu]m silica powder, and less than 5 [mu]m alpha-Al2O3 micro powder, as well as a water reducing agent and explosion-proof fibers; the raw materials are uniformly stirred to obtain the ladle lining repair material. 9 to 12 percent of water is added into the ladle lining repair material to obtain repair pug; the repair pug is uniformly smeared on the surface of a ladle lining refractory material atthe smearing thickness of 1 to 3 cm; the ladle lining refractory material can be used after curing and baking. The ladle lining repair material has the advantages of being low in price, environment friendly, high in strength, high in corrosion resistance, long in service life, simple and quick; the service life of a ladle can be effectively prolonged by 20 to 30 percent, the cost of the refractory material is reduced and the production efficiency of the ladle is improved.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a ladle lining repair material and its preparation method and application. Background technique [0002] During the use of ladle lining refractory materials, the service life of online ladles will be greatly affected by the fluctuation of steelmaking conditions and the fluctuation of the quality of refractory materials themselves. When problems such as local depressions and cracks appear in the refractory lining of the ladle, it will seriously affect the normal turnover of the ladle. Using refractory repair material to partially repair the online running steel ladle can greatly improve the service life of the refractory material lining the steel ladle. The use of recycled materials to prepare repair materials can save the cost of raw materials on the one hand, and on the other hand, can comprehensively utilize waste materials, save resource consumption, ...

Claims

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Application Information

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IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/3206C04B2235/349C04B2235/428C04B2235/447C04B2235/526C04B2235/5264C04B2235/5427C04B2235/5436C04B2235/77C04B2235/96
Inventor 李志强彭从华管军红李济华
Owner 河南竹林庆州耐火材料有限公司
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