Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fused quartz block for glass kiln hot repair and manufacturing method thereof

A technology of fused silica and hot repair, which is applied in glass manufacturing equipment, manufacturing tools, glass production, etc., can solve the problems of not being able to repair quickly in a hot state, and achieve shortened repair and baking time, high economic benefits, and high thermal shock stability Effect

Inactive Publication Date: 2008-12-17
山东耐材集团中齐耐火有限公司
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a fused silica brick for hot repair of a glass kiln and its manufacturing method, which can solve the problem in the prior art that cannot be repaired quickly in a hot state

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 quartz block for glass kiln hot repair and manufacturing method thereof
  • Fused quartz block for glass kiln hot repair and manufacturing method thereof
  • Fused quartz block for glass kiln hot repair and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] The formula (weight content) of fired fused silica bricks for hot repair of glass kiln is:

[0087] Fused silica particle size 2 ~ 5mm 7 parts

[0088] Particle size 1 ~ 2mm 25 parts

[0089] Particle size 0.1-1mm 25 parts

[0090] Particle size 0-0.044mm 43 parts

[0091] Silica micropowder 1.5 parts

[0092] 1.5 parts of silica sol

[0093] Phosphoric acid 3 parts

[0094] The manufacturing method of above-mentioned glass kiln firing fused silica brick:

[0095] 1) Raw material control

[0096] ①Control Al in fused silica raw material 2 o 3 , Fe 2 o 3 +FeO+Fe,R 2 For the content of O impurities, use a magnet to check the elemental iron, and then use it after iron removal treatment;

[0097] ② Silica sol and industrial phosphoric acid should be placed in an environment above 0°C to avoid gel or crystallization that will affect the use;

[0098] ③ Control the particle size composition of fused silica raw material 1-0.1mm: ≥1mm: <5%; <0.1mm: <5%.

[0099] 2...

Embodiment 2

[0114] The formula (weight content) of fired fused silica bricks for hot repair of glass kiln is:

[0115] Fused silica particle size 2-5mm 10 parts

[0116] Particle size 1-2mm 20 parts

[0117] Particle size 0.1-1mm 30 parts

[0118] Particle size 0-0.044mm 40 parts

[0119] Silica micropowder 1.0 parts

[0120] Silica sol 1.0 parts

[0121] Phosphoric acid 3.5 parts

[0122] Present embodiment glass kiln firing fused silica brick manufacturing method is basically the same as embodiment 1, difference is:

[0123] The firing temperature is 1150°C, and the holding time is 5 hours.

Embodiment 3

[0125] The formula of fired fused silica bricks for hot repair of glass kiln is (weight content):

[0126] Fused silica particle size 2-5mm 12 parts

[0127] Particle size 1-2mm 20 parts

[0128] Particle size 0.1-1mm 30 parts

[0129] Particle size 0-0.044mm 40 parts

[0130] Silica micropowder 1.0 parts

[0131] Silica sol 2.0 parts

[0132] Phosphoric acid 2.5 parts

[0133] Present embodiment glass kiln firing fused silica brick manufacturing method is basically the same as embodiment 1, difference is:

[0134] The firing temperature is 1180°C, and the holding time is 3 hours.

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 provides a fused silica brick used for hot patching of glass furnaces and a production method thereof, which can solve the problem existing in the prior art that rapid hot patching can not be carried out. The fused silica brick of the invention has low coefficient of thermal expansion and high thermal shock resistance, thus being able to meet the rapid hot patching requirement of the key parts of kiln crown, port, breast wall, regenerator, and the like of the glass furnaces after being damaged. The technical proposal is that: the fused silica brick used for hot patching of the glass furnaces contains ingredients as follows: fused silica: 5 portions to 15 portions with 2mm to 5mm of grain size, 10 portions to 30 portions with 1mm to 2mm of grain size; 15 portions to 35 portions with 0.1mm to 1mm of grain size and 25 portions to 45 portions with 0mm to 0.044mm of grain size; 1 portion to 2 portions of agglutinant, 1 portion to 2 portions of plasticizer and 1 portion to 6 portions of anchoring agent, wherein, the aggluinant is SiO2 micropower with SiO2 content higher than 96.8 percent, the plasticizer is silicasol and the anchoring agent is phosphoric acid for industrial use with concentration of 80 percent to 90 percent.

Description

technical field [0001] The invention relates to a refractory material for a glass kiln, which is a kind of rapid repair in hot state when the key parts of the glass kiln, such as the roof, small furnace, parapet, regenerator, etc., are damaged and need hot repair. Machine-pressed and fired fused silica bricks, specifically, a fused silica brick for hot repair of a glass kiln and a manufacturing method thereof. Background technique [0002] The silica bricks used in the glass kiln are mainly used in the roof of the glass kiln, the small furnace, the upper part of the hanging wall and the front and rear walls. Some glass kilns also use silica bricks for the vault and checker bricks of the regenerator. Now some glass factories have replaced the breast wall and other parts with other materials such as fused zirconia corundum and alumina. The roof of the glass kiln is made of insulation materials. The temperature of the cold end of the roof at the small furnace is about 1100°C, ...

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): C04B35/66C03B5/42
CPCY02P40/50
Inventor 郭江华鄢凤明李洪刚
Owner 山东耐材集团中齐耐火有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com