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Ceramic fiber thermal insulation material for industrial smelting furnace

A technology of thermal insulation materials and ceramic fibers, applied in the field of thermal insulation materials, can solve problems such as poor thermal insulation effect and inability to use organic materials, and achieve the effects of good thermal insulation effect and low thermal conductivity

Inactive Publication Date: 2017-12-08
FOSHAN GAOJIE IND FURNACE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the extremely high melting temperature, organic materials cannot be used, and only inorganic insulation materials can be used.
[0004] When the existing inorganic thermal insulation materials are used in industrial furnaces, although the materials will not be carbonized or softened, their thermal insulation effect is not good, and their thermal conductivity will reach 0.035W / m.K, and only 70% of the heat can be guaranteed without loss

Method used

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  • Ceramic fiber thermal insulation material for industrial smelting furnace
  • Ceramic fiber thermal insulation material for industrial smelting furnace
  • Ceramic fiber thermal insulation material for industrial smelting furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Ceramic fiber insulation materials for industrial furnaces, the insulation materials are composed of the following components by mass:

[0024]

[0025] The preparation method of the ceramic fiber insulation material used for industrial melting furnace:

[0026] Accurately weigh the amount of aluminum silicate ceramic fiber, silicon nitrogen carbon ceramic fiber, alumina, zirconia, silica gel, aluminate and talcum powder;

[0027] Put the aluminum silicate ceramic fiber and silicon nitrogen carbon ceramic fiber into the jet mill for pulverization, and pulverize to a particle size of 20 μm;

[0028] Pass the aluminum silicate ceramic fiber powder and silicon nitrogen carbon ceramic fiber powder through 600 mesh respectively;

[0029] Add the sieved aluminum silicate ceramic fiber powder and silicon nitrogen carbon ceramic fiber powder into water, stir with a mixer at a stirring speed of 70r / min, and stir for 18min to obtain a mixed slurry a;

[0030] Al2O3 and zirco...

Embodiment 2

[0037] Ceramic fiber insulation materials for industrial furnaces, the insulation materials are composed of the following components by mass:

[0038]

[0039] The preparation method of the ceramic fiber insulation material used for industrial melting furnace:

[0040] Accurately weigh the amount of aluminum silicate ceramic fiber, silicon nitrogen carbon ceramic fiber, alumina, zirconia, cement, aluminate and graphite powder;

[0041] The aluminum silicate ceramic fiber and the silicon nitrogen carbon ceramic fiber are respectively added to a jet mill for crushing until the particle size is 18 μm;

[0042] Pass the aluminum silicate ceramic fiber powder and silicon nitrogen carbon ceramic fiber powder through 750 mesh respectively;

[0043] Add the sifted aluminum silicate ceramic fiber powder and silicon nitrogen carbon ceramic fiber powder into water, stir with a mixer at a stirring speed of 50 / min, and stir for 22 minutes to obtain a mixed slurry a;

[0044] Al2O3 and...

Embodiment 3

[0051] Ceramic fiber insulation materials for industrial furnaces, the insulation materials are composed of the following components by mass:

[0052]

[0053] The preparation method of the ceramic fiber insulation material used for industrial melting furnace:

[0054] Accurately weigh the amount of aluminum silicate ceramic fiber, silicon nitrogen carbon ceramic fiber, aluminum oxide, zirconium oxide, aluminum sol, titanate and glass powder;

[0055] The aluminum silicate ceramic fiber and the silicon nitrogen carbon ceramic fiber are respectively added to a jet mill for crushing until the particle size is 14 μm;

[0056] Pass the aluminum silicate ceramic fiber powder and silicon nitrogen carbon ceramic fiber powder through 800 mesh respectively;

[0057] Add the sieved aluminum silicate ceramic fiber powder and silicon nitrogen carbon ceramic fiber powder into water, stir with a stirrer at a stirring speed of 40r / min, and stir for 24min to obtain a mixed slurry a;

[0...

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Abstract

The invention discloses a ceramic fiber thermal insulation material for an industrial smelting furnace. The thermal insulation material comprises the following components in parts by mass: 45-55 parts of alumina-silicate ceramic fibers, 15-22 parts of silicon-nitrogen-carbon ceramic fibers, 2-6 parts of aluminum oxide, 4-9 parts of zirconia, 12-18 parts of an adhesive, 1-5 parts of a surfactant and 15-28 parts of a filling agent. According to the thermal insulation material, the alumina-silicate ceramic fibers and the silicon-nitrogen-carbon ceramic fibers are taken as matrix materials, the aluminum oxide and zirconia are added into the materials for performing property modification, and the adhesive, the surfactant and the filling agent are added, so that the thermal insulation material is formed. Therefore, the thermal insulation material is low in heat conductivity coefficient, a level of 0.015 can be reached, the thermal insulation effect is excellent, and 80% of the heat is not lost.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a ceramic fiber thermal insulation material used for industrial furnaces. Background technique [0002] There are roughly two series of high-temperature-resistant coating technologies, organic series and inorganic series. Most of the high-temperature-resistant coatings of the organic series use silicone as the carrier, and the maximum temperature generally cannot exceed 400 degrees Celsius. Carbonization or softening will occur if the temperature exceeds this temperature. Inorganic series of high-temperature-resistant coatings can withstand temperatures of at least 1000 degrees Celsius. [0003] Industrial furnaces are generally used to melt metal objects, such as metal aluminum. However, in the process of melting aluminum metal, a lot of heat is required, and when the temperature reaches the molten metal temperature, the temperature will be very high. In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B28/00C04B28/02
CPCC04B28/24C04B28/005C04B28/02C04B2201/32C04B14/4656C04B14/4687C04B14/303C04B14/306C04B24/40C04B14/042C04B14/22C04B14/40
Inventor 邱泽坚
Owner FOSHAN GAOJIE IND FURNACE CO LTD