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

Low-heat conduction insulating brick and preparation method thereof

A technology of low thermal conductivity and thermal insulation bricks, which is applied in the field of refractory materials, can solve the problems of short service life, high thermal conductivity and high self-weight of anti-flaking high-alumina bricks, achieve thermal insulation effect and excellent service life, and reduce the self-weight of equipment Effect

Active Publication Date: 2015-12-30
郑州瑞泰耐火科技有限公司
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of existing high-strength alkali-resistant bricks and anti-flaking high-alumina bricks with short service life, high self-weight and large thermal conductivity, the purpose of the present invention is to provide a low thermal conductivity heat insulation brick and its preparation method

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
  • Low-heat conduction insulating brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A low heat conduction heat insulation brick, its raw material compatibility is as follows: it is composed of a working layer and a heat insulation layer, the work layer and the heat insulation layer are bonded with a low heat conduction high temperature adhesive, and the heat insulation layer is a normal temperature compressive strength ≥ 0.5MPa Nano-microporous heat insulation board, the working layer is made of aggregate, powder, nano-powder, high-temperature reinforcing agent plus binder, the sum of aggregate, powder, nano-powder, and high-temperature reinforcing agent is 100wt%, and the binder Accounting for 4wt% of the sum of aggregate, powder, nanopowder, and high-temperature reinforcing agent; the aggregate is: 15wt% of high-alumina aggregate with a particle size of 0-1mm, 30wt% of high-alumina aggregate with a particle size of 1-3mm, 15wt% of high-alumina aggregate with a particle size of 3-5mm; the powder is: 30wt% of high-alumina fine powder with a particle siz...

Embodiment 2

[0022] A low heat conduction heat insulation brick, its raw material compatibility is as follows: it is composed of a working layer and a heat insulation layer, the work layer and the heat insulation layer are bonded with a low heat conduction high temperature adhesive, and the heat insulation layer is a normal temperature compressive strength ≥ 0.5MPa Nano-microporous heat insulation board, the working layer is made of aggregate, powder, nano-powder, high-temperature reinforcing agent plus binder, the sum of aggregate, powder, nano-powder, and high-temperature reinforcing agent is 100wt%, and the binder Accounting for 5wt% of the sum of aggregate, powder, nanopowder, and high-temperature reinforcing agent; the aggregate is: 10wt% of high-alumina aggregate with a particle size of 0-1mm, 20wt% of high-alumina aggregate with a particle size of 1-3mm, 20wt% of high alumina aggregate with a particle size of 3-5mm; the powder is: 37wt% of high alumina fine powder with a particle siz...

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
compressive strengthaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of refractory materials, and in particular relates to a low-heat conduction insulating brick and a preparation method thereof. The low-heat conduction insulating brick is composed of a working layer and an insulating layer, wherein the working layer and the insulating layer are adhered by a low-heat conduction high-temperature glue, the insulating layer is a nanometer-micropore insulating plate with the cold crushing strength being greater than or equal to 0.5MPa, and the working layer is prepared from a bauxite aggregate with the particle size being 0-1mm, a bauxite aggregate with the particle size being 1-3mm, a bauxite aggregate with the particle size being 3-5mm, high-alumina powder with the particle size being smaller than 0.074, nano-powder, a high-temperature fortifier and an additionally-added bonding agent. The average volume density of the low-heat conduction insulating brick is far lower than those of a high-strength alkali-resisting brick and an anti-stripping alumina brick, so the dead load of equipment can be greatly lowered; moreover, the heat preservation and heat insulation effect and the service life are both superior to those of the alkali-resisting brick, thus better energy conservation and emission reduction effects can be achieved.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a heat-insulating brick with low thermal conductivity and a preparation method thereof. Background technique [0002] At present, most of the cement plant tertiary air ducts, calciners, preheaters, preheating cyclones and other medium and high temperature parts in the market are still lined with high-strength alkali-resistant bricks, and the insulation layer is calcium silicate board. The initial effect of this scheme is good, but with the prolongation of the use time, the local temperature is prone to be too high, resulting in the deformation of the wall pipe, and the subsidence and collapse of some refractory bricks, which seriously affects the normal operation of the cement kiln. Contents of the invention [0003] In order to solve the problems of existing high-strength alkali-resistant bricks and anti-flaking high-alumina bricks with short service l...

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): C04B35/66B32B9/04B32B7/12B32B33/00
Inventor 袁林李全有李沅锦曹伟郑建立
Owner 郑州瑞泰耐火科技有限公司
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