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Refractory material as well as preparation method and application thereof

A technology of refractory materials and raw materials, applied in the field of refractory materials, can solve the problems of increased apparent porosity, high foaming rate of refractory materials, and poor compressive strength, so as to improve corrosion resistance, prolong service life, reduce The effect of internal corrosion

Active Publication Date: 2021-05-07
广州市白云区石井特种耐火材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditionally, the improvement of the corrosion resistance of refractory materials is generally to introduce corrosion-resistant substances into the raw materials of original refractory materials, but this will affect other adverse properties of refractory materials, such as high foaming rate, increased apparent porosity and Deterioration of compressive strength

Method used

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  • Refractory material as well as preparation method and application thereof
  • Refractory material as well as preparation method and application thereof
  • Refractory material as well as preparation method and application thereof

Examples

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preparation example Construction

[0035] The present invention also provides a method for preparing a refractory material, comprising the following steps S1-S4.

[0036] Step S1: prepare materials according to the above-mentioned raw materials of refractory materials.

[0037] Step S2: Mix the above raw materials with water to obtain a castable.

[0038] Specifically, the fused zirconia-mullite and the alumina-containing material were stirred and mixed for 3 minutes to 7 minutes, and water was added and stirred and mixed again for 3 minutes to 7 minutes to obtain a castable.

[0039] The above mixing time can be but not limited to 3min, 4min, 5min, 6min or 7min.

[0040] In a specific example, the mass ratio of raw materials and water in the castable is 100:(3~7)

[0041] Understandably, the mass ratio of raw material to water may be, but not limited to, 100:3, 100:4, 100:5, 100:6 or 100:7.

[0042] Step S3: The castable is poured and molded to obtain a green body, and dried, and the water content of the dr...

Embodiment 1

[0055] This embodiment provides a kind of refractory material to be made of each raw material comprising the following mass percentages:

[0056]

[0057] The preparation method of the refractory material of this embodiment is as follows: put fused zirconia mullite activated alumina, alumina cement and dispersible alumina in proportion to mixing in an inclined mixer for 5 minutes, mix the above raw materials with water Stir and mix at a mass ratio of 100:4.8 for about 5 minutes before discharging. After the vibrating table is turned on and vibrated, the pouring material is injected into the mold at the same time. Stop pouring after pouring is full; observe the pouring port, and turn off the vibration after no bubbles escape from the pouring port; After pouring, move the poured mold out of the vibrating table to a vacant place for 24 hours, disassemble the mold, and obtain a green body. The water content in the green body was dried to 0.2%, and the green body was removed and...

Embodiment 2

[0059] This embodiment provides a kind of refractory material to be made of each raw material comprising the following mass percentages:

[0060]

[0061]

[0062] The preparation method of the refractory material of this embodiment is as follows: put fused zirconia mullite activated alumina, alumina cement and dispersible alumina in proportion to mixing in an inclined mixer for 5 minutes, mix the above raw materials with water Stir and mix at a mass ratio of 100:5.1 for about 5 minutes before discharging. After the vibrating table is turned on and vibrating, pour the castable into the mold at the same time. Stop pouring when it is full; observe the pouring port, and turn off the vibration after no bubbles escape from the pouring port. After pouring, move the poured mold out of the vibrating table to a vacant place for 25 hours, disassemble the mold, and obtain a green body. The water content in the green body was dried to 0.2%, and the green body was removed and placed ...

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Abstract

The invention discloses a refractory material as well as a preparation method and application thereof. The refractory material is prepared by mixing the following components in percentage by weight: 75%-80% of fused zirconium mullite and 20%-25% of a material containing aluminum oxide. According to the refractory material, the fused zirconium mullite with different particle sizes and the material containing aluminum oxide are synergistically used and are combined with a sintering process, so low-melt substances and other chemical components in the raw materials can fill in crystal lattices of all the phases in a glass phase form, and the refractory material is more compact in structure and obviously improved in glass liquid corrosion resistance and pressure resistance; and meanwhile, when the refractory material is used as a pool wall brick of a glass kiln, the internal corrosion of the glass kiln can be effectively reduced, and the service life of the glass kiln is prolonged.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a refractory material and its preparation method and application. Background technique [0002] As an important material in human production and life, glass is produced at high temperatures (up to 1600°C or higher) during the preparation process, so a large amount of refractory materials are used, and refractory materials are the main building materials for glass kilns , it has a decisive impact on glass kiln life, glass quality, energy consumption and product cost. Because the glass liquid in the glass kiln is corrosive to a certain extent, the refractory material will be gradually eroded during the glass production process. The erosion reaction between the batch material, glass liquid and alkali vapor and the refractory material has an exponential function relationship with the temperature, that is, as the temperature increases, the erosion increases sharply. In addition, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C03B5/43
CPCC04B35/66C03B5/43C04B2235/3463C04B2235/3217C04B2235/6567C04B2235/9607
Inventor 刘华利方平胡国武李超林符启慧韦修功
Owner 广州市白云区石井特种耐火材料厂