Unlock instant, AI-driven research and patent intelligence for your innovation.

A rapid repairing material for bracket parts of inclined flues of coke dry quenching furnaces and a repairing method thereof

A technology for dry quenching coke oven and repair material, applied in the field of refractory materials, can solve the problems of degradation and insufficient strength of repair material, and achieve the effects of preventing oxidation, high strength, and promoting bonding

Inactive Publication Date: 2016-12-21
武汉钢铁有限公司
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also many similar patents, all of which have added various types of binders, but due to the choice of binders or the overall system, the strength of the repair material is not high enough, and there is a phenomenon of degradation

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
  • A rapid repairing material for bracket parts of inclined flues of coke dry quenching furnaces and a repairing method thereof
  • A rapid repairing material for bracket parts of inclined flues of coke dry quenching furnaces and a repairing method thereof
  • A rapid repairing material for bracket parts of inclined flues of coke dry quenching furnaces and a repairing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The rapid repair material for the corbel part of the inclined flue of CDQ oven, its composition is calculated by mass percentage, including: 50.6wt% of mullite with a particle size of 1-3mm; 15wt% of silicon carbide with a particle size of not more than 1mm; 23.7wt% mullite; 3wt% aluminum oxide powder; 2wt% metal silicon powder; 1wt% water glass; 4wt% silica sol; 0.5wt% calcium aluminate cement; 0.1wt% aluminum potassium sulfate; %. And, in the overall particle size distribution of all materials of the quick repair compound, the amount not greater than 0.074mm is 45wt%, wherein the amount not greater than 0.045mm is 32wt%; the molar ratio of sodium oxide to silicon oxide of the water glass used is 2.2, and the used The solid content of silicon oxide in the silica sol is 32.5 wt%, and the setting time of the calcium aluminate cement used is 35 minutes.

[0032] The preparation method of the above quick repair material: Weigh each raw material according to the proportion...

Embodiment 2

[0035] The rapid repair material for the corbel part of the inclined flue of CDQ oven, its composition is calculated by mass percentage, including: 40wt% of mullite with a particle size of 1-3mm; 16wt% of silicon carbide with a particle size of not more than 1mm; Aluminum oxide powder 8wt%; iron oxide powder 1.5wt%; metal silicon powder 3.5wt%; water glass 7wt%; silica sol 2wt%; calcium aluminate cement 1.5wt%; potassium aluminum sulfate 0.4wt% ; Sodium citrate 0.1 wt%. And, in the overall particle size distribution of all materials of the quick repair compound, the amount not greater than 0.074mm is 35wt%, and the amount not greater than 0.045mm is 20wt%; the molar ratio of sodium oxide to silicon oxide of the water glass used is 2.5, and the silica sol used The solid content of silicon oxide in the medium is 32wt%, and the solidification time of the calcium aluminate cement used is 30 minutes.

[0036] The preparation method of the above quick repair material: Weigh each ra...

Embodiment 3

[0039] The rapid repair material for the corbel part of the inclined flue of CDQ oven, its composition is calculated by mass percentage, including: 38wt% of mullite with a particle size of 1-3mm; 18wt% of silicon carbide with a particle size of not more than 1mm; mullite with a particle size of not more than 1mm 22wt% of limestone; 4wt% of alumina micropowder; 1wt% of iron oxide micropowder; 5wt% of metal silicon powder; 5wt% of water glass; 4wt% of silica sol; 0.5 wt%. And, in the overall particle size distribution of all materials of the quick repair compound, the amount not greater than 0.074mm is 55wt%, wherein the amount not greater than 0.045mm is 35wt%; the molar ratio of sodium oxide to silicon oxide of the water glass used is 2.0, and the silica sol used The solid content of silicon oxide in the medium is 35wt%, and the setting time of the calcium aluminate cement used is 40 minutes.

[0040] The preparation method of the above quick repair material: Weigh each raw m...

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

PropertyMeasurementUnit
Strengthaaaaaaaaaa
Strengthaaaaaaaaaa
Strengthaaaaaaaaaa
Login to View More

Abstract

A rapid repairing material is disclosed. Raw materials of the rapid repairing material comprise, by mass, 25-55 wt% of mullite the particle size of which is 1-3 mm, 15-35 wt% of silicon carbide the particle size of which is not more than 1 mm, 20-35 wt% of mullite the particle size of which is not more than 1 mm, 3-8 wt% of alumina micro powder, not more than 2 wt% of ferric oxide micro powder, 2-5 wt% of metal silicon powder, 1-7 wt% of water glass, not more than 4 wt% of silica sol, 0.01-3 wt% of calcium alumino-ferrite cement, not more than 0.5 wt% of aluminum potassium sulfate and not more than 0.5 wt% of sodium citrate. The rapid repairing material is used for repairing bracket parts of inclined flues of coke dry quenching furnaces, overcomes the problem that damaged bracket parts of inclined flues of coke dry quenching furnaces are difficult to repair from the aspect of techniques, reduces the production cost, prolongs the overall service lifetime of the coke dry quenching furnaces and shortens overhaul time.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and relates to a quick repair material and a repair method thereof, which are mainly used for repairing the corbels of the inclined flue of CDQ coke ovens in the coking industry. Background technique [0002] The domestic design of CDQ coke ovens has always followed the idea of ​​CDQ technology invented in Japan. CDQ coke ovens include cooling sections, chutes, and circular air ducts. The inclined flue is supported by 30 corbel columns. The structure of the air duct has high stress, and the service life of the corbel bricks is generally only 2-3 years. Each replacement and maintenance costs hundreds of thousands of yuan and takes 30-50 days, which affects production. Such as figure 1 If the repair method can be used after the oblique flue corbel brick is damaged, the overhaul time can be shortened to less than 7 days, the cost can be reduced by more than 80%, and the maintenance is ...

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): C04B35/66
CPCC04B35/66
Inventor 徐国涛盛军波陈胜春张洪雷韩斌刘继雄朱建文
Owner 武汉钢铁有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com