Fused zirconia corundum low-seepage brick production method

A production method and technology of zirconium corundum, which is applied in the field of refractory materials to achieve the effects of low cost, reduced erosion damage, and extended service life

Inactive Publication Date: 2015-09-23
郑州远东耐火材料有限公司
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a production method of fused zirconia corundum bricks with low exudation, which can effectively...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fused zirconia corundum low-seepage brick production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The production method of the fused zirconium corundum low exudation brick comprises the following steps:

[0017] (1) Preparation of raw materials, the raw materials are made by mixing 20% ​​of clinker and 80% of raw meal by weight percentage;

[0018] Wherein, the clinker is calculated by weight percentage: sodium oxide (Na 2 O) 1.3%, zirconia (ZrO 2 ) 32.7%, silicon dioxide (SiO 2 ) 14% and aluminum oxide (Al 2 O 3 ) 52% mixed uniformly; the particle size of clinker is less than or equal to 20mm;

[0019] The raw meal is prepared by mixing 15% of zircon sand, 77% of calcined alumina powder, 7% of desiliconized zirconium and 1% of soda ash by weight percentage;

[0020] (2) Electric furnace melting, pour the evenly mixed raw materials into the electric furnace and melt into a material liquid, the melting temperature is 1900-1930 ℃, the melting time is 65 minutes, and the oxygen is blown twice during the melting process, and the first time is 55 minutes after melti...

Embodiment 2

[0024] The production method of the fused zirconium corundum low exudation brick comprises the following steps:

[0025] (1) Preparation of raw materials, the raw materials are made by mixing 22.5% of clinker and 77.5% of raw meal by weight percentage;

[0026] Wherein, the clinker is calculated by weight percentage: sodium oxide (Na 2 O) 1.4%, zirconia (ZrO 2 ) 32%, silicon dioxide (SiO 2 ) 14% and aluminum oxide (Al 2 O 3 ) 52.5% mixed uniformly; the particle size of clinker is less than or equal to 20mm;

[0027] The raw meal is prepared by mixing 16% of zircon sand, 68.5% of calcined alumina powder, 14% of desiliconized zirconium and 1.5% of soda ash by weight percentage;

[0028] (2) Electric furnace melting, pour the evenly mixed raw materials into the electric furnace and melt into the material liquid, the melting temperature is 1900-1930 ℃, the melting time is 66 minutes, and the oxygen is blown twice during the melting process, and the first time is 55 minutes af...

Embodiment 3

[0032] The production method of the fused zirconium corundum low exudation brick comprises the following steps:

[0033] (1) Preparation of raw materials, the raw materials are made by mixing 25% of clinker and 75% of raw meal by weight percentage;

[0034] Wherein, the clinker is calculated by weight percentage: sodium oxide (Na 2 O) 1.45%, zirconia (ZrO 2 ) 32.4%, silicon dioxide (SiO 2 ) 15% and aluminum oxide (Al 2 O 3 ) 51.15% mixed uniformly; the particle size of clinker is ≤20mm; the raw meal is calculated by weight percentage: zircon sand 22.5%, calcined alumina powder 63.5%, desiliconized zirconium 12.5% ​​and soda ash 1.5% made by mixing evenly;

[0035] (2) Electric furnace melting, pour the evenly mixed raw materials into the electric furnace and melt into a material liquid, the melting temperature is 1900-1930 ℃, the melting time is 67 minutes, and the oxygen is blown twice during the melting process, and the first time is 55 minutes after melting. , blow ox...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a fused zirconia corundum low-seepage brick production method which can effectively reduce seepage amount of a fused zirconia corundum brick glass phase. According to the technical scheme of the fused zirconia corundum low-seepage brick production method, a raw material is prepared by evenly mixing, by weight, 20-30% of clinker and 70-80% of raw meal, wherein the clinker is prepared by evenly mixing, by weight, 1.3-1.6% of sodium oxide (Na2O), 32-33% of zirconium oxide (ZrO2), 14-16% of silicon dioxide (SiO2) and 50-52.5% of aluminum oxide (Al2O3); the raw meal is prepared by evenly mixing, by weight, 15-30% of zircon sand, 50-77% of forged alumina powder, 7-18% of desilicated zirconia and 1-2% of sodium carbonate (Na2CO3). According to a produced fused zirconia corundum low-seepage brick, the seepage amount of the glass phase under the condition of 1500 DEG C*4 h is reduced to 1.2%, and accordingly chemical replacement between the brick and high-temperature glass melt in use is reduced, erosive damage to a material is reduced, and the service life of the fused zirconia corundum brick is greatly prolonged.

Description

technical field [0001] The invention relates to refractory materials, in particular to a production method of fused zirconia corundum low-exudation bricks. Background technique [0002] Fused zirconia corundum bricks have always been the first choice for parts in direct contact with molten glass in glass furnaces due to their superior high temperature resistance, erosion resistance, and non-pollution performance to molten glass. Fused zirconia corundum bricks are formed by high-temperature oxidation melting, casting and cooling. The solidification and hardening process of molten liquid is the process of crystal structure formation in fused zirconia corundum bricks. During the cooling process of molten liquid, zirconia (ZrO 2 ) and aluminum oxide (Al 2 o 3 ) crystallization produces baddeleyite and corundum crystal phases, and most of them exist in the form of baddeleyite-corundum crystal eutectics, forming the skeleton structure of fused zirconia corundum bricks; silicon d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B35/66C04B35/109
Inventor 龙沾卫
Owner 郑州远东耐火材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap