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Erosion-resistant kaolin honeycomb ceramic heat accumulating body and preparation method thereof

A technology of honeycomb ceramics and corrosion resistance, which is applied to ceramic products, clay products, and other household appliances to achieve high-efficiency heat storage and release, low equipment wear, and improved service life and performance.

Inactive Publication Date: 2018-07-06
HUBEI SHENWU THERMAL ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an erosion-resistant kaolin honeycomb ceramic regenerator and its preparation method to solve the existing problems in the above-mentioned background technology

Method used

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  • Erosion-resistant kaolin honeycomb ceramic heat accumulating body and preparation method thereof

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Effect test

Embodiment 1

[0022] An erosion-resistant kaolin honeycomb ceramic regenerator mainly consists of the following components: 36 parts of potassium feldspar, 72 parts of kaolin, 6 parts of talc, 10 parts of montmorillonite, 4 parts of glass fiber, and 7 parts of 0.3mm chromium ore powder , 3 parts of aluminate cement, 2 parts of silica powder, 4 parts of chlorinated polyethylene, 3 parts of maleic acid-acrylic acid copolymer, 10 parts of hydroxypropyl methylcellulose, 2 parts of phthalate, mono 2 parts of ethanolamine and 1 part of stearic acid are prepared by kneading mud, stale, extruded, dried and calcined, impregnated with strengthening slurry, dried and calcined again;

[0023] The strengthening slurry is composed of the following components: 7 parts of alumina micropowder, 6 parts of chromium oxide green micropowder, 2 parts of carbon fiber, 5 parts of silicon nitride, 6 parts of cerium nitrate, Al 2 o 3 7 parts, 5 parts of methyl methacrylate-butadiene-styrene terpolymer, 0.8 parts of...

Embodiment 2

[0037] An erosion-resistant kaolin honeycomb ceramic regenerator mainly consists of the following components: 38 parts of potassium feldspar, 75 parts of kaolin, 8 parts of talc, 12 parts of montmorillonite, 5 parts of glass fiber, and 12 parts of 0.7mm chromium ore powder , 3 parts of aluminate cement, 2 parts of silica powder, 4 parts of chlorinated polyethylene, 4 parts of maleic acid-acrylic acid copolymer, 11 parts of hydroxypropyl methylcellulose, 2 parts of phthalate, mono 2 parts of ethanolamine and 2 parts of stearic acid are prepared by kneading mud, aging, extruding, drying and calcining, impregnating the strengthening slurry, drying and calcining again;

[0038] The strengthening slurry is composed of the following components: 8 parts of alumina micropowder, 13 parts of chromium oxide green micropowder, 2 parts of carbon fiber, 5 parts of silicon nitride, 7 parts of cerium nitrate, Al 2 o 3 8 parts, 7 parts of methyl methacrylate-butadiene-styrene terpolymer, 1.5 ...

Embodiment 3

[0052] An erosion-resistant kaolin honeycomb ceramic regenerator mainly consists of the following components: 40 parts of potassium feldspar, 79 parts of kaolin, 9 parts of talc, 15 parts of montmorillonite, 5 parts of glass fiber, 14 parts of 1mm chromium ore powder, 4 parts of aluminate cement, 2 parts of silica powder, 6 parts of chlorinated polyethylene, 4 parts of maleic acid-acrylic acid copolymer, 11 parts of hydroxypropyl methylcellulose, 3 parts of phthalate, monoethanolamine 3 parts and 2 parts of stearic acid are prepared by kneading mud, aging, extruding, drying and calcining, impregnating the strengthening slurry, drying and calcining again;

[0053] The strengthening slurry is composed of the following components: 10 parts of alumina micropowder, 15 parts of chromium oxide green micropowder, 2 parts of carbon fiber, 6 parts of silicon nitride, 7 parts of cerium nitrate, Al 2 o 3 9 parts, 10 parts of methyl methacrylate-butadiene-styrene terpolymer, 2 parts of po...

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Abstract

The invention discloses an erosion-resistant kaolin honeycomb ceramic heat accumulating body. The ceramic heat accumulating body is characterized by being prepared by the following processes: kneading35 to 40 parts of potassium feldspar, 70 to 80 parts of kaolin, 5 to 10 parts of talcum, 10 to 15 parts of montmorillonite, 4 to 5 parts of glass fibres, 5 to 15 parts of 0.1 to 1 mm chromium ore powder, 2 to 4 parts of aluminate cement, 1 to 3 parts of silica powder, 3 to 6 parts of chlorinated polyethylene, 3 to 5 parts of a copolymer of maleic and acylic acid, 10 to 12 parts of hydroxypropyl methyl cellulose, 2 to 3 parts of phthalate, 2 to 3 parts of monoethanolamine and 1 to 3 parts of stearic acid with a mud material; staling the mixture, extruding, forming, drying, calcining, impregnating to strength slurry, drying and calcining again. According to the erosion-resistant kaolin honeycomb ceramic heat accumulating body, the blank viscosity coefficient is large; the extruding pressureis lower than that of other mud material systems; the wear to equipment is low. Meanwhile, the erosion-resistant kaolin honeycomb ceramic heat accumulating body has good dryness resistance, erosion resistance, and high temperature chemical stability; the service life of a heat accumulating chamber is greatly prolonged, and the efficiency of the heat accumulating chamber is greatly improved.

Description

technical field [0001] The invention relates to the field of manufacturing honeycomb ceramic regenerators, in particular to an erosion-resistant kaolin honeycomb ceramic regenerator and a preparation method thereof. Background technique [0002] Honeycomb ceramics are widely used in regenerators, catalysts and their carriers, and ceramic membrane carriers for flue gas filtration due to their large specific surface area, large heat capacity, small thermal expansion coefficient, good high temperature resistance, and strong corrosion resistance. Especially in the field of regenerative combustion technology, regenerative honeycomb ceramics are widely used in industrial kilns such as heating furnaces due to their good heat storage and release performance, high temperature performance and thermal shock resistance. With the development of regenerative combustion technology and the emergence of direct reduction ironmaking technology, a honeycomb body with strong resistance to slag e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B33/13C04B33/36
CPCC04B38/0006C04B33/13C04B33/36C04B2235/3217C04B2235/3241C04B2235/3418C04B2235/3472C04B2235/349C04B2235/3873C04B2235/5216C04B2235/5248C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/77C04B2235/96C04B2235/9607C04B38/0067C04B38/0074
Inventor 吴道君李军营杨晓波王辉
Owner HUBEI SHENWU THERMAL ENERGY TECH
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