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A kind of electric furnace gunning material and gunning repair furnace protection method

Active Publication Date: 2022-06-03
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for different slag components in smelting, the composition of the gunning material and the specific gunning method are quite different. At present, there are no characteristics of carbonization smelting for high-titanium blast furnace slag and the particularity of slag components. Gunning material and gunning method

Method used

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  • A kind of electric furnace gunning material and gunning repair furnace protection method
  • A kind of electric furnace gunning material and gunning repair furnace protection method

Examples

Experimental program
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Effect test

Embodiment 1

[0026]

[0027] Wherein, the binding agent is made up of the following components by weight ratio: phenolic resin 2%, coal pitch 4%, anthracene oil 2%.

Embodiment 2

[0032]

[0033] Wherein, the binding agent is made up of the following components by weight ratio: phenolic resin 2%, coal pitch 2%, anthracene oil 2%.

Embodiment 3

[0038]

[0039]

[0040] Wherein, the binding agent is made up of the following components by weight ratio: phenolic resin 2%, coal pitch 4%, anthracene oil 2%.

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Abstract

The invention discloses an electric furnace gunning material, the weight percent of which is: MgO 15-35%, Al 2 o 3 25-40%, TiO 2 Not more than 35%, C 5-10% and binder 4-8%. The electric furnace gunning material has strong resistance to slag invasion, is suitable for use on the surface of magnesia-carbon refractories, and is dry-type operation. Compared with other gunning materials, it can significantly increase the furnace life. The invention also provides an electric furnace protection method using the electric furnace feeding material.

Description

A kind of electric furnace gunning material and gunning furnace protection method technical field The invention belongs to the field of high-temperature metallurgy, and particularly relates to a kind of electric furnace lining gunning material and method for gunning and protecting the furnace. Background technique The special blast furnace slag that vanadium titanomagnetite smelting produces is high titanium type blast furnace slag, TiO 2 The content is about 2 and not more than 24%. At present, the effective utilization route of titanium-containing blast furnace slag mainly based on the "high temperature carbonization-low temperature chlorination" process has gradually formed. Among them, high The warm carbonization process mainly uses an electric furnace to reduce high-titanium type blast furnace slag with carbonaceous reducing agent at a temperature of 1400 ° C ~ 1700 ° C. The main reaction is TiO 2 +3C=TiC+2CO(g), after the smelting is completed, the slag ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/053C04B35/66C04B35/634C22B7/04C22B5/10
CPCC04B35/053C04B35/62204C04B35/66C04B35/63476C04B35/63496C22B7/04C22B7/001C22B5/10C04B2235/3217C04B2235/3232C04B2235/425C04B2235/5436C04B2235/9669Y02P10/20
Inventor 王东生赵青娥吕学明刘亚东
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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