Unlock instant, AI-driven research and patent intelligence for your innovation.

High-temperature chlorine-corrosion-resistant NiCrTiAlSi/La2O3 coating on flue gas side of garbage incineration and power generation boiler and preparation method

A technology for power generation boilers and waste incineration, applied in coatings, metal material coating processes, metal processing equipment, etc., can solve problems that limit the effective operation of waste incinerators, high-temperature corrosion of materials, etc., and achieve high-temperature corrosion resistance and anti-corrosion Oxidation, grain refinement, and the effect of improving high temperature erosion resistance

Active Publication Date: 2016-11-09
GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the serious high-temperature corrosion of materials in the process of waste incineration will undoubtedly become a key issue that limits the effective operation of waste incinerators.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature chlorine-corrosion-resistant NiCrTiAlSi/La2O3 coating on flue gas side of garbage incineration and power generation boiler and preparation method
  • High-temperature chlorine-corrosion-resistant NiCrTiAlSi/La2O3 coating on flue gas side of garbage incineration and power generation boiler and preparation method
  • High-temperature chlorine-corrosion-resistant NiCrTiAlSi/La2O3 coating on flue gas side of garbage incineration and power generation boiler and preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The high temperature chlorine corrosion resistance NiCrTiAlSi / La measured by the flue gas of the waste incineration power generation boiler according to the present invention 2 o 3 The preparation method of coating comprises the following steps:

[0029] (1) Mix Inconel625 alloy powder with NiCrTiAlSi / La 2 o 3 The alloy powder is uniformly mixed in proportion to obtain a composite powder;

[0030] (2) Grinding the composite powder prepared in step (1) evenly to obtain spherical composite powder and drying;

[0031] (3) Clean and roughen the surface of the heating surface of the garbage incinerator;

[0032] (4) Thermal spraying technology is used to spray a primer layer on the surface of the heating surface;

[0033] (5) adopt thermal spray technology to spray the spherical composite powder prepared in step (2) on the primer layer of step (4);

[0034] (6) cooling to obtain a high temperature resistant chlorine corrosion coating on the heating surface of the refus...

Embodiment 1

[0042] see figure 1 , which is the high temperature chlorine corrosion resistant NiCrTiAlSi / La measured by the flue gas of the waste incineration power generation boiler of the present embodiment 2 o 3 Schematic diagram of the coating structure. The coating includes a substrate layer 11 , a primer layer 12 and an anti-corrosion coating 13 stacked in sequence from bottom to top. The anti-corrosion coating 13 is Inconel625-NiCrTiAlSi / La 2 o 3 Composite coating, said composite coating is made of Inconel625 and NiCrTiAlSi / La 2 o 3 It is formed by mixing 90% and 10% by mass percentage respectively. Wherein, the substrate layer 11 is any one of carbon steel and alloy steel. The primer layer 12 is a NiAl alloy layer with a thickness of 80-100 μm. The thickness of the anti-corrosion coating 13 is 0.3-0.5 mm.

[0043] The high temperature chlorine corrosion resistance NiCrTiAlSi / La measured by the flue gas of the waste incineration power generation boiler according to the pres...

Embodiment 2

[0060] see image 3 , which is the high temperature chlorine corrosion resistant NiCrTiAlSi / La measured by the flue gas of the waste incineration power generation boiler of the present embodiment 2 o 3 Schematic diagram of the coating structure. The coating includes a substrate layer 21 , a primer layer 22 and an anti-corrosion coating 23 stacked in sequence from bottom to top. The anti-corrosion coating 23 is Inconel625-NiCrTiAlSi / La 2 o 3 Composite coating, said composite coating is made of Inconel625 and NiCrTiAlSi / La 2 o 3 It is formed by mixing 85% and 15% respectively by mass percentage. Wherein, the substrate layer 21 is any one of carbon steel and alloy steel. The primer layer 22 is a NiAl alloy layer with a thickness of 80-100 μm. The thickness of the anti-corrosion coating 23 is 0.3-0.5 mm.

[0061] The high temperature chlorine corrosion resistance NiCrTiAlSi / La measured by the flue gas of the waste incineration power generation boiler according to the pres...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-temperature chlorine-corrosion-resistant NiCrTiAlSi / La2O3 coating on a flue gas side of a garbage incineration and power generation boiler and a preparation method. The preparation method comprises steps that (1) composite powder is prepared; (2) the composite powder is ground evenly for obtaining spherical composite powder which is then dried; (3) the surface of a base plate is subjected to cleaning and roughening treatment; (4) the thermal spray technology is utilized for coating a heated surface with a priming paint layer; (5) the thermal spray technology is adopted for spraying the spherical composite powder on the priming paint layer; and (6) cooling is conducted. According to the coating obtained by use of the preparation method, the composite coating is sprayed on the surface of the priming paint layer, the rare element La2O3 added in the coating has the function of purifying the coating crystal boundary, the crystal boundary is enhanced, forming of an oxidation film is facilitated, the form of the coating is changed, crystal particles are refined, and the high-temperature corrosion resistance and the oxidation resistance of the coating are improved.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coating materials, in particular to a high-temperature chlorine corrosion-resistant NiCrTiAlSi / La for flue gas measurement of waste incineration power generation boilers 2 o 3 Coatings and methods of preparation. Background technique [0002] Waste incineration power generation has the advantages of reduction, harmlessness, and resource utilization, and is recognized as the best way to dispose of waste. Compared with landfill treatment, it has the advantages of small footprint, easy site selection, short treatment time, significant reduction, complete harmlessness, and recyclable waste heat from waste incineration. It is a waste treatment method vigorously promoted in my country. [0003] However, the concentration of chlorine in solid waste is usually high (0.5% to 2.0%), and chlorination corrosion will occur in waste incineration. The high activity of chlorine allows it to react with a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C23C4/129C23C4/134C23C4/06C23C4/08B22F1/065B22F1/17
CPCC23C4/06C23C4/08B22F1/17B22F1/065B22F2998/10C22C1/05B22F2009/043B22F3/115C22C1/0433C23C4/129C23C4/134C23C4/04C23C4/067C22C19/055C23C4/02C23C4/18B22F2009/0824
Inventor 杨波李茂东李仕平陈志刚林金梅喻文翟伟辛明亮黄国家王志刚伍振凌曹丽英
Owner GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com