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

Low-cost, high-thermal-shock-resistance, low-thermal-conductivity and light-weight heat-insulating brick and preparation method thereof

A light-weight heat insulation and low-cost technology, applied to ceramic products, clay products, and other household appliances, can solve the problems of frequent maintenance, easy cracking, and brick falling, and achieve low thermal conductivity, good thermal shock resistance, and small volume The effect of low density

Pending Publication Date: 2022-04-15
广东金刚新材料有限公司 +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal shock resistance of existing kiln car bricks in China is not very good. After a period of use, it is easy to crack and bricks fall off, resulting in frequent maintenance and increasing production costs.

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-cost, high-thermal-shock-resistance, low-thermal-conductivity and light-weight heat-insulating brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] Correspondingly, the present invention also provides a method for preparing the above-mentioned lightweight heat-insulating brick with low cost, high thermal shock resistance and low thermal conductivity, comprising the following steps:

[0058] (1) Pour ceramic roller rod waste material roller rod waste material, alumina powder, magnesia clay, kaolin into the grinding equipment, and obtain the mixture after grinding;

[0059] (2) adding sawdust and water to the mixture, and mixing uniformly to obtain mud;

[0060] (3) Pour the mud material into a mould, and form it to obtain a green body;

[0061] (4) drying and firing the green body to obtain a finished product.

[0062] Preferably, the mud material is poured into a mold, and formed by vibration and pressure to obtain a plurality of green bodies. Vibration pressure molding is a process in which materials collide with each other under the action of high-frequency vibration, and gradually pile up to fill the green bod...

Embodiment 1

[0084] A low-cost, high thermal shock resistance, low thermal conductivity lightweight heat insulation brick and its preparation method

[0085] Low cost, high thermal shock resistance and low thermal conductivity lightweight insulation brick formula, including the following raw materials by volume:

[0086] 50 parts of low thermal expansion ceramic roller waste, 20 parts of α-alumina powder, 15 parts of magnesia clay, 25 parts of kaolin, 40 parts of wood chips.

[0087] Wherein, the Al of the low thermal expansion rate ceramic roller waste 2 o 3 Content is 50wt%, SiO 2 The content is 30wt%, the MgO content is 6wt%, the mullite crystal phase content is 50%, the cordierite crystal phase content is 50%, and the maximum particle size is 44 μm;

[0088] Al of the α-alumina powder 2 o 3 The content is 99.5%, the particle size is 40μm;

[0089] Al of the magnesia clay 2 o 3 The content is 23wt%, the content of MgO is 23wt%, and its particle size is ≤80μm;

[0090] Al of the...

Embodiment 2

[0105] A preparation method of low-cost, high thermal shock resistance and low thermal conductivity lightweight heat insulation brick

[0106] The thermal shock-resistant lightweight heat insulation brick formula includes the following raw materials in parts by volume:

[0107] 60 parts of low thermal expansion ceramic roller waste, 10 parts of α-alumina powder, 15 parts of magnesia clay, 20 parts of kaolin, 50 parts of sawdust;

[0108] Wherein, the Al of the low thermal expansion rate ceramic roller waste 2 o 3 Content is 50wt%, SiO 2 The content is 30wt%, the MgO content is 6wt%, the mullite crystal phase content is 40%, the cordierite crystal phase content is 60%, and the maximum particle size is 40 μm;

[0109] Al of the α-alumina powder 2 o 3 The content is 99.5%, the particle size is 40μm;

[0110] Al of the magnesia clay 2 o 3 The content is 23wt%, the content of MgO is 23wt%, and its particle size is ≤75μm;

[0111] Al of the kaolin 2 o 3 Content is 36wt%, ...

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
Thermal expansion coefficientaaaaaaaaaa
Bulk densityaaaaaaaaaa
Normal temperature compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a light heat-insulating brick with low cost, high thermal shock resistance and low heat conductivity. The light heat-insulating brick mainly comprises the following components in parts by volume: 50-60 parts of ceramic roller waste, 10-20 parts of alumina powder, 10-20 parts of magnesia clay, 20-30 parts of kaolin and 30-50 parts of sawdust. The ceramic roller waste is low-thermal-expansion ceramic roller waste, and the thermal expansion coefficient of the ceramic roller waste is smaller than or equal to 4 * 10 <-6 > / DEG C. Correspondingly, the invention further provides a preparation method of the low-cost high-thermal-shock-resistance low-thermal-conductivity light-weight heat-insulating brick, vibration pressure forming is adopted, the efficiency is high, and waste materials are few. The low-cost, high-thermal-shock-resistance, low-thermal-conductivity and light-weight heat-insulating brick is good in thermal shock resistance, low in heat conductivity coefficient and low in volume density. The heat-insulating brick provided by the invention takes the roller waste as the main raw material, so that the cost of the product is reduced, and the environmental pollution caused by the roller waste is reduced.

Description

technical field [0001] The invention relates to the technical field of heat insulating bricks, in particular to a lightweight heat insulating brick with low cost, high thermal shock resistance and low heat conduction and a preparation method thereof. Background technique [0002] In the case of the depletion of traditional energy sources and the slow development of new energy sources, enterprises attach great importance to the energy saving and consumption reduction of industrial kilns. Ceramic companies often use fast-firing methods to increase production capacity and reduce energy consumption. This is a technical difficulty for kiln car bricks, that is, in a high-temperature tunnel kiln, the kiln car moves in and out quickly, and the kiln car bricks are required to have good thermal shock resistance. The thermal shock resistance of existing kiln car bricks in China is not very good. After a period of use, it is easy to crack and bricks fall off, resulting in frequent main...

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): C04B33/132C04B35/66C04B38/06
CPCC04B33/1324C04B35/66C04B35/185C04B35/195C04B38/0675C04B2235/3217C04B2235/5436C04B2235/77C04B2235/96C04B2235/9607C04B2235/9615C04B2235/6562C04B2235/6567Y02P40/60
Inventor 刘程罗琼杨华亮冯斌叶浩广
Owner 广东金刚新材料有限公司
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