High temperature abrasion-proof paint and method for producing the same

A high-temperature wear-resistant and coating technology, applied in the field of refractory materials, can solve the problems of wear resistance, erosion resistance, erosion resistance and thermal shock stability, which affect the normal operation of circulating fluidized bed boilers and consume manpower and financial resources and other problems, to achieve the effect of saving manpower and material resources, high density, and improving production efficiency

Active Publication Date: 2009-05-13
YIXING GUOQIANG FURNACE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the refractory materials currently used in circulating fluidized bed boilers use high-alumina clinker or fused corundum as raw materials, with high cement content, and their wear resistance, erosion resistance, erosion resistance and thermal shock stability cannot meet the requirements of cycle Fluidized bed boiler technology requirements, short service life, need frequent repair or replacement, affect the normal operation of circulating fluidized bed boiler, consume a lot of manpower and financial resources

Method used

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  • High temperature abrasion-proof paint and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, high temperature wear-resistant coating, is made up of the first material of 70 parts of weight and the second material of 30 parts of weight, wherein:

[0029] The weight percentage of each component of material A is:

[0030] Zirconium corundum particle size 1 ~ 3mm 15%

[0031] Zirconium corundum particle size 0.4 ~ 1mm 35%

[0032] Corundum fine powder 220-250 mesh 20%

[0033] He No. 3 kyanite 180 mesh to 220 mesh 16%

[0034] Yttrium Stabilized Zirconium 3%

[0035] Silica powder SI≥98% Elkem silica powder 3%

[0036] Alumina fine powder 4%

[0037] Pure calcium aluminate cement 3%

[0038] Sodium tripolyphosphate 0.5%

[0039] Fused calcium chromate 0.5%;

[0040] The weight percent of each component of second material is:

[0041] Phosphoric acid 75%

[0042] Ink Grade Aluminum Hydroxide 15%

[0043] Zirconia superfine powder 5%

[0044] Yttrium Stabilized Zirconium 3%

[0045] Fused calcium chromate 2%

[0046] Among them: the concen...

Embodiment 2

[0048] Embodiment 2, high-temperature wear-resistant coating, is made up of the first material of 80 parts by weight and the second material of 20 parts by weight, wherein:

[0049] The weight percentage of each component of material A is:

[0050] Zirconium corundum particle size 1 ~ 3mm 19%

[0051] Zirconium corundum particle size 0.4 ~ 1mm 25%

[0052] Corundum fine powder 220-250 mesh 15%

[0053] He No. 3 kyanite 180 mesh to 220 mesh 10%

[0054] Yttrium Stabilized Zirconium 9%

[0055] Silica powder SI≥98% Elkem silica powder 7%

[0056] Alumina fine powder 8%

[0057] Pure calcium aluminate cement 5.5%

[0058] Sodium tripolyphosphate 0.3%

[0059] Fused calcium chromate 1.2%;

[0060] The weight percent of each component of second material is:

[0061] Phosphoric acid 85%

[0062] Ink Grade Aluminum Hydroxide 6%

[0063] Zirconia superfine powder 5%

[0064] Yttrium stabilized zirconium 3.7%

[0065] Fused calcium chromate 0.3%

[0066] Among them: the con...

Embodiment 3

[0068] Embodiment 3, high-temperature wear-resistant coating, is made up of the first material of 85 parts of weight and the second material of 15 parts of weight, wherein:

[0069] The weight percentage of each component of material A is:

[0070] Zirconium corundum particle size 1 ~ 3mm 25%

[0071] Zirconium corundum particle size 0.4 ~ 1mm 28%

[0072] Corundum fine powder 220-250 mesh 15%

[0073] He No. 3 kyanite 180 mesh to 220 mesh 10%

[0074] Yttrium Stabilized Zirconium 5%

[0075] Silica powder SI≥98% Elkem silica powder 5%

[0076] Alumina fine powder 5.4%

[0077] Pure calcium aluminate cement 4%

[0078] Sodium tripolyphosphate 0.1%

[0079] Fused calcium chromate 2.5%;

[0080] The weight percent of each component of second material is:

[0081] Phosphoric acid 75%

[0082] Ink grade aluminum hydroxide 7.7%

[0083] Zirconia superfine powder 7%

[0084] Yttrium Stabilized Zirconium 8%

[0085] Fused calcium chromate 2.3%

[0086] Among them: the c...

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Abstract

The invention relates to a 318 high-temperature wear-resistant coating and a preparation method thereof, in particular to a rapid repair material for repairing various abrasive bricks and wear-resistant casting damage positions in circulating fluidized bed boilers of fuel electric plants. At the same time, the invention provides a method for producing the high-temperature wear-resistant coating, and belongs to the technical field of refractory material. The rapid repair material consists of a material A and a material B according to the weight portion proportion of 70-85 to 30-15, wherein the material A is prepared by zircon corundum, fine corundum powder, cyanite, yttrium-stabilized zirconium, silicon micropowder, alumina micropowder, pure calcium aluminate cement, trimeric sodium phosphate, and fused calcium chromate; and the material B is prepared by phosphorous acid, ink grade aluminum hydroxide, zirconia ultrafine powder, yttrium-stabilized zirconium, and fused calcium chromate.

Description

technical field [0001] The invention relates to a 318 high-temperature wear-resistant coating and a preparation method thereof, in particular to a rapid repair material for repairing wear-resistant bricks and wear-resistant casting damaged parts in a circulating fluidized bed boiler in a thermal power plant. At the same time, it provides The invention relates to a manufacturing method of the high-temperature wear-resistant coating. It belongs to the technical field of refractory materials. Background technique [0002] The circulating fluidized bed boiler technology is currently recognized as a clean coal combustion technology. Due to the complex construction system of the circulating fluidized bed power generation boiler, the large amount of construction, the high flow rate of pulverized coal in the system pipeline, and the large flow rate, excellent performance is required for refractory materials. However, the refractory materials currently used in circulating fluidized ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B35/66
Inventor 林国强蔡锋张洪强
Owner YIXING GUOQIANG FURNACE IND
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