Honeycomb ceramic heat storage body with low adsorption capability and preparation method thereof

A technology of honeycomb ceramics and low adsorption, applied in the field of honeycomb ceramic regenerator and its preparation, can solve the problems of easily hanging on the wall to block holes, high maintenance cost, adsorption, and blocking holes, etc., to achieve automatic batching and automation Production, improve service life, increase the effect of lubrication angle

Inactive Publication Date: 2018-07-27
醴陵友立特种陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at present, metal melting furnaces such as regenerative aluminum melting furnaces in China mainly use ceramic balls as heat storage carriers to prevent clogging. Even so, ceramic balls still need to be cleaned regularly, which is not only troublesome to use, but also very expensive to maintain
[0005] At present, the service life of traditional honeycomb ceramic regenerators in domestic regenerative metal smelting furnaces does not exceed 6 months, and the situation of regenerative aluminum melting furnaces is particularly serious, with an average service life of no more than 3 months When the small ball is used as the heat storage carrier, it must also be cleaned regularly. The most common use period is no more than 9 months, which is difficult to maintain and high in operating costs.
[0006] In view of the loose structure of traditional honeycomb ceramic regenerators, which are easily adsorbed by low melting point substances and block the pores, some domestic manufacturers have developed patented technologies such as "a new type of zirconium chromium corundum ceramic regenerator (200710034984.5)" , by adding zirconium (ZrO 2 ), chromium

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A honeycomb ceramic regenerator with low adsorption capacity, which is fired from the following components and parts by mass of each component:

[0040] White corundum powder: 60 parts;

[0041] Mullite: 8 parts;

[0042] a—AL 2 o 3 Powder: 14 parts;

[0043] SiO 2 Powder: 3 parts;

[0044] Tricalcium phosphate: 10 parts;

[0045] High temperature adhesive: 5 parts.

[0046] Each chemical composition and the mass percentage of each chemical composition in the finished product after burning are as follows:

[0047] AL 2 o 3 : 79.5%;

[0048] SiO 2 : 4.5%;

[0049] MgO: 2%;

[0050] CaO: 7.5%;

[0051] The rest are impurities, totaling 100%.

[0052] The impurity contains Fe 2 o 3 、Na 2 O and K 2 O.

[0053] The high-temperature adhesive is a phosphate inorganic binder. This material mainly improves the adhesion degree of the prepared regenerator premixed material, and forms an intermolecular bridging tissue structure at a high temperature, which can i...

Embodiment 2

[0062] A honeycomb ceramic regenerator with low adsorption capacity, which is fired from the following components and parts by mass of each component:

[0063] White corundum powder: 55 parts;

[0064] Mullite: 10 parts;

[0065] a—AL 2 o 3 Powder: 14 parts;

[0066] SiO 2 Powder: 2 parts;

[0067] Tricalcium phosphate: 15 parts;

[0068] High temperature adhesive: 5 parts.

[0069] Each chemical composition and the mass percentage of each chemical composition in the finished product after burning are as follows:

[0070] AL 2 o 3 : 75.5%;

[0071] SiO 2 : 4.2%;

[0072] MgO: 2%;

[0073] CaO: 10%;

[0074] The rest are impurities, totaling 100%.

[0075] The impurity contains Fe 2 o 3 、Na 2 O and K 2 O.

[0076] The high-temperature adhesive is a phosphate inorganic binder. This material mainly improves the adhesion degree of the prepared regenerator premixed material, and forms an intermolecular bridging tissue structure at a high temperature, which can i...

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PUM

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Abstract

The invention discloses a honeycomb ceramic heat storage body with low adsorption capability and a preparation method thereof. The honeycomb ceramic heat storage body with the low adsorption capability is sintered from the following components in parts by weight: 55 to 60 parts of white corundum powder, 8 to 10 parts of mullite, 10 to 15 parts of a-AL2O3 powder, 2 to 3 parts of SiO2 powder, 10 to15 parts of tricalcium phosphate, and 4 to 5 parts of high-temperature adhesive. The honeycomb ceramic heat storage body has high material compacting/low porosity, high high-temperature resistance/high chemical reaction heat, high impermeability, low adsorption capability, high desorption capability, low production cost, high energy-saving rate, low smoke emission temperature, and long service life.

Description

technical field [0001] The invention relates to a honeycomb ceramic regenerator with low adsorption capacity and a preparation method thereof, belonging to the technical field of industrial special ceramics for regenerative metal smelting furnaces. Background technique [0002] At present, the new regenerative high-temperature air combustion technology (HTAC) based on the traditional honeycomb ceramic regenerator / ceramic ball has been widely used in various regenerative systems such as iron and steel metallurgy, petrochemical industry, precision forging, and environmental protection filtration. In heating equipment, it can not only improve the combustion effect, save energy, but also reduce NO X Emissions of similar gases can effectively avoid environmental pollution. [0003] However, for a long time, traditional honeycomb ceramic regenerators have not been able to be applied to regenerative metal melting furnaces such as aluminum melting furnaces. The specific reason is t...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/66C04B35/622
CPCC04B35/10C04B35/622C04B35/66C04B2235/3206C04B2235/3208C04B2235/3418C04B2235/447C04B2235/77C04B2235/9607
Inventor 彭赞
Owner 醴陵友立特种陶瓷有限公司
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