Far-infrared high-temperature anti-abrasion energy-saving coating and preparation method thereof

A high-temperature wear-resistant and energy-saving coating technology, applied in the field of refractory materials and their preparation, can solve the problems affecting the normal operation of circulating fluidized bed boilers and high operating costs, and achieve good thermal insulation, high compressive strength, and high Mohs hardness. Effect

Inactive Publication Date: 2017-01-04
YIXING GUOQIANG FURNACE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the refractory materials used in circulating fluidized bed boilers are made of high alumina clinker or white corundum raw materials, and their thermal insulation, wear resistance, corrosion resistance, erosion resistance and thermal shock stability cannot meet the requirements of circulating fluidization. The strict requirements of bed boiler technology require frequent repairs or replacements, affecting the normal operation of circulating fluidized bed boilers and high operating costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The far-infrared high-temperature wear-resistant energy-saving coating is composed of main materials and auxiliary materials, and the weight ratio of the main materials and auxiliary materials is 65:23; the main materials and auxiliary materials are respectively composed of the following raw materials in parts by weight:

[0020] Main ingredients, 19 parts of zirconium corundum fine powder with a particle size of 1-2.5 mm; 27 parts of zirconium corundum fine powder with a particle size of 0.5-1 mm; 7 parts of titanium oxide powder with a particle size of 0.072-0.093 mm; 10 parts of zirconia; pure aluminum 9 parts of calcium acid cement; 8 parts of yttrium oxide; 6 parts of high-purity sintered magnesia-zirconium sand; 9 parts of silicon micropowder; 5 parts of alumina micropowder; 0.3 part of sodium triphosphate; 1 part of silicon nitride; 5.8 parts of hydrotalcite; The silica powder is fused silica powder with silicon content ≥ 98%. The content of magnesium oxide in hig...

Embodiment 2

[0028] The far-infrared high-temperature wear-resistant energy-saving coating is composed of main materials and auxiliary materials, and the weight ratio of the main materials and auxiliary materials is 70:10; the main materials and auxiliary materials are respectively composed of the following raw materials in parts by weight:

[0029] Main ingredients, 23 parts of zirconium corundum fine powder with a particle size of 1-2.5 mm; 23 parts of zirconium corundum fine powder with a particle size of 0.5-1 mm; 16 parts of titanium oxide powder with a particle size of 0.072-0.093 mm; 16 parts of zirconia; pure aluminum 7 parts of calcium acid cement; 4 parts of yttrium oxide; 10 parts of high-purity sintered magnesia-zircon sand; 5 parts of silicon micropowder; 3 parts of alumina micropowder; 0.5 part of sodium triphosphate; 2.3 parts of silicon nitride; The silica powder is fused silica powder with silicon content ≥ 98%. The content of magnesium oxide in high-purity sintered magnesi...

Embodiment 3

[0037] The far-infrared high-temperature wear-resistant and energy-saving coating is composed of main materials and auxiliary materials, and the weight ratio of the main materials and auxiliary materials is 81:20; the main materials and auxiliary materials are respectively composed of the following raw materials in parts by weight:

[0038] Main ingredients, 15 parts of zirconium corundum fine powder with a particle size of 1-2.5 mm; 20 parts of zirconium corundum fine powder with a particle size of 0.5-1 mm; 10 parts of titanium oxide powder with a particle size of 0.072-0.093 mm; 9 parts of zirconia; pure aluminum 5 parts of calcium acid cement; 2 parts of yttrium oxide; 5 parts of high-purity sintered magnesia-zircon sand; 7 parts of silicon micropowder; 7 parts of alumina micropowder; 0.7 part of sodium triphosphate; 1.5 parts of silicon nitride; The silica powder is fused silica powder with silicon content ≥ 98%. The content of magnesium oxide in high-purity sintered magne...

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Abstract

The invention relates to a fireproof material and a preparation method thereof, in particular to a far-infrared high-temperature anti-abrasion energy-saving coating and a preparation method thereof. The far-infrared high-temperature anti-abrasion energy-saving coating consists of a main material and an auxiliary material, wherein the main material is composed of fused alumina zirconia fine powder, zirconium oxide, pure calcium aluminate cement, yttrium oxide, high-purity sintered magnesia-zirconia powder, silica micro powder, aluminum oxide micro powder, sodium tripolyphosphate, silicon nitride and hydrotalcite; and the auxiliary material is composed of phosphoric acid, aluminum hydroxide for ink, aluminum sulfate, calcium borate, borax and a sintering agent. The far-infrared high-temperature anti-abrasion energy-saving coating has high pressure resisting strength, relatively high hardness, high Moh's hardness and high compactness, has good heat preservation property, abrasion resistance, erosion resistance and washing resistance and has heat shock stability and high viscosity.

Description

technical field [0001] The invention relates to a refractory material and a preparation method thereof, in particular to a far-infrared high-temperature wear-resistant energy-saving coating and a preparation method thereof. Background technique [0002] High-temperature far-infrared radiation energy-saving coating is a new high-efficiency, energy-saving and environmentally friendly product for industrial kilns. It can be directly sprayed on the surface of refractory materials in various high-temperature kilns, or the surface of water-cooled wall tubes in steam boilers to form a layer of hard ceramics. The glazed hard shell can protect the furnace body, prolong the service life of the furnace, and effectively reflect the infrared heat in the furnace. It significantly improves the heat transfer effect in the furnace, reduces black oil emissions, and saves fuel consumption by 5% to 20%. It is very suitable for industrial furnaces above 500 °C. Especially in circulating fluidiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 林国强
Owner YIXING GUOQIANG FURNACE IND
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