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Ceramic coatings and their applications

A technology of ceramic coatings and content, applied in the field of coatings, can solve the problem that the comprehensive performance of coatings is not very high

Active Publication Date: 2017-03-22
铜陵兆山科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example: Chinese patent application number 201410687121.8 discloses a high-temperature-resistant, stain-resistant and slagging-resistant ceramic coating, which includes: fillers, binders and water, wherein the fillers include zirconia, silicon nitride, silicon carbide, titanium dioxide, kaolin and rare earth oxides, the ceramic coating provided by this patent can withstand high temperatures of 1050°C, but the overall performance of the coating is still not very high

Method used

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  • Ceramic coatings and their applications
  • Ceramic coatings and their applications
  • Ceramic coatings and their applications

Examples

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Effect test

preparation example Construction

[0040] The preparation method of the ceramic coating described in the present application can be prepared in a manner well known to those skilled in the art. In order to make the various components in the coating more uniform, the preparation method of the ceramic coating described in the application is preferably carried out according to the following steps:

[0041] mixing the binder with water to obtain a binder liquid;

[0042] The filler is refined and mixed with the binder liquid, and then additives are added to obtain a ceramic paint.

[0043] The application also provides the application of the ceramic coating in industrial furnaces. The ceramic coating of the present application can be applied to the surface of the above-mentioned industrial furnace tube to form a ceramic coating to protect the stability of the industrial furnace during use. The industrial furnaces mentioned above can be industrial furnaces well known to those skilled in the art, such as boilers, ki...

Embodiment 1

[0046] Mix the organic binder, the inorganic binder and water to obtain the binder liquid, add the refined filler into the binder liquid, add the auxiliary agent and stir evenly, filter and package, and obtain the ceramic coating. The content of each component of the ceramic coating of the example is shown in Table 1.

Embodiment 2

[0048] The preparation process of the ceramic coating is the same as in Example 1, and the content of each component of the ceramic coating in this example is shown in Table 1.

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Abstract

The invention provides ceramic paint. The ceramic paint comprises 3.0wt%-6.8wt% of organic binders, 15.0wt%-45.0wt% of inorganic binders, 7wt%-35wt% of packing, 2.0wt%-3.0wt% of auxiliaries and the balance water. The organic binders are made of silicone emulsion, the inorganic binders are made of sodium water glass, and the packing comprises rare-earth oxide, graphite, mica, kaolin, copper chromite black, zirconia and chromium oxide. The invention further provides application of the ceramic paint to industrial furnaces. The ceramic paint and the application have the advantages that mutual synergistic effects can be realized by components in the ceramic paint, and accordingly the ceramic paint is excellent in comprehensive performance when used as a ceramic coating.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to ceramic coatings and applications thereof. Background technique [0002] In the production and operation of power plant boilers, petrochemical heating furnaces, and small and medium-sized industrial boilers, the contamination of pulverized coal boilers has caused great hidden dangers in the safe operation of boilers, and will also affect the efficiency of boilers or heating furnaces. Contamination and slagging on the high-temperature heat exchange surface directly leads to a decrease in heat exchange capacity and furnace efficiency, which in turn causes uneven heating of the heat exchange surface, resulting in uneven thermal stress of the furnace tube and uneven heating of the heated working fluid. It will cause problems such as over-temperature operation of the furnace tube, formation of nitrogen oxides, aggravated emissions, and excessively high exhaust gas temperature; at the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/01
Inventor 邰召山
Owner 铜陵兆山科技有限公司
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