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

Preparation method of prefabricated component at kiln port used for cement kiln

A technology for prefabricated parts and cement kilns, applied in the field of refractory materials, can solve the problems of low life expectancy of prefabricated parts, save construction time, ensure construction quality, and reduce quality problems.

Inactive Publication Date: 2015-08-12
ZHEJIANG KINGCRED NEW MATERIAL CO LTD
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for preparing kiln mouth prefabricated parts for cement kilns, aiming at solving the problem of low service life of existing prefabricated parts

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a kiln mouth prefabricated part for a cement kiln, comprising the following steps in sequence:

[0023] A. 25 parts of 5-8mm mullite, 15 parts of 3-5mm mullite, 10 parts of 0-1mm mullite, 10 parts of 1-3mm zirconium corundum, 15 parts of 0-1mm zirconium corundum , 6 parts of zircon powder not larger than 320 mesh, 7 parts of tabular corundum powder not larger than 320 mesh, 4 parts of calcium aluminate cement, 3 parts of alumina powder, 4 parts of silica powder, 0.10 part of water reducer, 0.02 part of explosion-proof fiber mixed into compound a;

[0024] B. Add water to mixture a and stir evenly to form mixture b, the mass percentage of water in mixture b is 4-5%;

[0025] C, the mixture b is poured into the mould;

[0026] D, demoulding after molding in the mold for 4 hours;

[0027] E. Curing for 48 hours;

[0028] F. After curing in step E, raise the temperature to 110°C at a heating rate of 10°C / h, and keep warm for 24 hours; then raise t...

Embodiment 2

[0031] The difference from other examples is that the mixture a includes 15 parts of 5-8mm mullite, 20 parts of 3-5mm mullite, 10 parts of 0-1mm mullite, 15 parts of 1-3mm Zirconium corundum, 10 parts of 0-1mm zirconium corundum, 10 parts of zircon powder not larger than 320 mesh, 5 parts of tabular corundum powder not larger than 320 mesh, 7 parts of calcium aluminate cement, 4 parts of alumina powder, 4 parts of silicon Micro powder, 0.15 parts of water reducer, 0.01 part of explosion-proof fiber. The mass percentage of water in mixture b is 5%.

Embodiment 3

[0033] The difference from other examples is that the mixture a includes 15 parts of 5-8mm mullite, 15 parts of 3-5mm mullite, 18 parts of 0-1mm mullite, 10 parts of 1-3mm Zirconium corundum, 10 parts of 0-1mm zirconium corundum, 7 parts of zircon powder not larger than 320 mesh, 10 parts of tabular corundum powder not larger than 320 mesh, 4 parts of calcium aluminate cement, 5 parts of alumina powder, 6 parts of silicon Micro powder, 0.12 parts of water reducing agent, 0.01 part of explosion-proof fiber. The mass percent of water in mixture b is 4.3%.

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 preparation method of a prefabricated component at a kiln port used for a cement kiln, which can solve the problem of low service life of the current prefabricated component. The method comprises the following steps: stirring and mixing, casting and moulding, demoulding, maintaining, and processing under high temperature. The prefabricated component has the advantages of good volume stability, corrosion resistance and high temperature mechanical property, on-site assembling enables more simple and easier construction, steps of on-site stirring, casting or ramming can be directly omitted, construction time is saved, a construction field of a cement rotary kiln can not be influenced by construction environment and season due to installation of the prefabricated component at the kiln port, construction quality is ensured, and usage life of the kiln port can be effectively prolonged. The prefabricated component can be taken as an inner liner material, on-site construction disadvantage of pouring materials can be solved, construction quality can be fully ensured, quality problem due to nonstandard construction can be greatly reduced, and usage life of the kiln port can be greatly prolonged.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a method for preparing a kiln mouth prefabricated part for a cement kiln. Background technique [0002] During the use of the refractory material of the cement kiln mouth, in addition to the high temperature above 1400 ℃, it also needs to withstand the mechanical stress, thermal stress and chemical Corrosion damage, the service conditions are very harsh, requiring kiln mouth refractory materials must have good thermal shock resistance, wear resistance and alkali resistance. The damage of the kiln mouth lining is mainly manifested as cracking, spalling and abrasion. The service life of the kiln mouth refractory castable has a crucial impact on the operation cycle of the entire cement production line. At present, most of the refractory materials for kiln mouth are prepared by on-site casting process. Riveting nails are welded on the steel shell, steel fiber reinforced refractor...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/622
Inventor 王立旺朱其良常正钦朱国平王琪李新明
Owner ZHEJIANG KINGCRED NEW MATERIAL CO LTD
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