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

High-performance anti-crusting castable for cement kilns, and preparation method thereof

A castable, high-performance technology used in the field of refractory materials to solve problems such as interference, crusting, and impact on cement kiln production

Inactive Publication Date: 2018-12-18
ANHUI RUITAI NEW MATERIALS TECH
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, skinning and clogging will interfere and even seriously affect the production of cement kilns

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 high-performance anti-skinning castable for cement kiln, which consists of: 25 parts of mullite with a particle size of 3-5mm, 27 parts of mullite with a particle size of 1-3mm, and 0.088- 10 parts of 1mm mullite, 7 parts of magnesium aluminum spinel powder with a particle size of 0.03-0.088mm, 1 part of magnesium aluminum spinel powder with a particle size of less than 0.03mm, 6 parts of silicon nitride powder, α alumina 3 parts of micropowder, 6 parts of quartz micropowder, 0.5 part of magnesia micropowder, 0.5 part of explosion-proof fiber, 0.1 part of composite water reducer, 12 parts of binder;

[0023] The composite water reducer is composed of ADW-1, sodium hexametaphosphate, ADS-1, and sodium tripolyphosphate in a mass ratio of 3:3:5-8:1; the binder is composed of aluminate refractory cement and silicon The sol is composed at a weight ratio of 1:7; the aluminate refractory cement is calcium aluminate refractory cement; the particle size of the α-alumina microp...

Embodiment 2

[0030] A high-performance anti-skinning castable for cement kilns, which consists of: 35 parts of mullite with a particle size of 3-5mm, 17 parts of mullite with a particle size of 1-3mm, and 0.088- 20 parts of 1mm mullite, 3 parts of magnesium aluminum spinel powder with a particle size of 0.03-0.088mm, 5 parts of magnesium aluminum spinel powder with a particle size of less than 0.03mm, 2 parts of silicon nitride powder, α alumina 9 parts of micro-powder, 1 part of quartz micro-powder, 4 parts of magnesia micro-powder, 0.1 part of explosion-proof fiber, 1 part of composite water reducer, 5 parts of binder;

[0031] The composite water reducer is composed of ADW-1, sodium hexametaphosphate, ADS-1, and sodium tripolyphosphate in a mass ratio of 6:1:5-8:4; the binder is composed of aluminate refractory cement and silicon The sol is composed of a weight ratio of 5:3; the aluminate refractory cement is calcium aluminate refractory cement; the particle size of the α-alumina microp...

Embodiment 3

[0038] A high-performance anti-skinning castable for cement kilns, which consists of: 27 parts of mullite with a particle size of 3-5mm, 19 parts of mullite with a particle size of 1-3mm, and 0.088- 12 parts of 1mm mullite, 4 parts of magnesium aluminum spinel powder with a particle size of 0.03-0.088mm, 2 parts of magnesium aluminum spinel powder with a particle size of less than 0.03mm, 3 parts of silicon nitride powder, α alumina 4 parts of micropowder, 2 parts of quartz micropowder, 1 part of magnesia micropowder, 0.2 part of explosion-proof fiber, 0.3 part of composite water reducer, 7 parts of binder;

[0039]The composite water reducer is composed of ADW-1, sodium hexametaphosphate, ADS-1, and sodium tripolyphosphate in a mass ratio of 4:2:6:3; the binder is composed of aluminate refractory cement and silica sol The weight ratio is 2:5; the aluminate refractory cement is calcium aluminate refractory cement; the particle size of the α-alumina fine powder is less than 0.0...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-performance anti-crusting castable for cement kilns. The castable comprises, by weight, 25-35 parts of mullite having a particle diameter of 3-5 mm, 17-27 parts of mullite having a particle diameter of 1-3 mm, 10-20 parts of mullite having a particle size of 0.088-1 mm, 3-7 parts of magnesia-alumina spinel micro-powder having a particle size of 0.03-0.088 mm, 1-5 parts of magnesia-alumina spinel micro-powder having a particle diameter of below 0.03 mm, 2-6 parts of silicon nitride micro-powder, 3-9 parts of alpha-alumina micro-powder, 1-6 parts of quartz micro-powder, 0.5-4 parts of magnesia micro-powder, 0.1-0.5 part of explosion-proof fibers, 0.1-1 part of a composite water reducer and 5-12 parts of a binder. A preparation method of the castable comprises the following steps: weighing all above raw materials for later use according to a certain weight ratio; adding the mullite, magnesia-alumina spinel micro-powders, silicon nitride micro-powder, alpha-alumina micro-powder, quartz micro-powder, magnesia micro-powder and explosion-proof fibers into a mixer, and stirring and mixing the added materials; adding the composite water reducer and the binderinto the mixer, and performing stirring and mixing; and examining and packaging the obtained mixture. The castable prepared in the invention has an excellent anti-crusting property.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a high-performance anti-skinning castable for cement kilns and a preparation method thereof. Background technique [0002] In the cement manufacturing industry, the new dry process cement rotary kiln is widely used. However, with the improvement of cement production efficiency and the increase of output, various volatile impurities in the rotary kiln, including heavy metal ions, sulfur, chlorine, alkali, etc., due to the existence of a large number of volatile substances, some kiln materials adhere to the surface of refractories A crust forms. With the prolongation of time, more and more crusts adhere to the refractory materials, and the space in the kiln becomes narrower and narrower, which becomes an obstacle to the flow of air and forms a blockage. If the clogging is not cleared by means of compressed air blowing, etc., the kiln has to be shut down. Therefore, ...

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): C04B35/66
CPCC04B35/66C04B2235/5212C04B2235/3873C04B2235/3463C04B2235/3418C04B2235/3222C04B2235/3217C04B2235/3206
Inventor 董舜杰万志华蒋杰周键周炜
Owner ANHUI RUITAI NEW MATERIALS TECH
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