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Anti-coking and anti-corrosion treatment agent for boiler, and preparation method and application thereof

A technology of corrosion treatment and treatment agent, which is applied in the field of boiler anti-coking and anti-corrosion treatment agent and its preparation, which can solve problems affecting boiler thermal efficiency and coking, and achieve the effects of ensuring safe and economical operation, uniform temperature, and enhanced heat exchange capacity

Active Publication Date: 2020-08-21
河南爱邦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention proposes a boiler anti-coking and anti-corrosion treatment agent and its preparation method and application, which solves the problem of coking caused by local high temperature on the heating surface of a power station boiler and affects the thermal efficiency of the boiler

Method used

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  • Anti-coking and anti-corrosion treatment agent for boiler, and preparation method and application thereof
  • Anti-coking and anti-corrosion treatment agent for boiler, and preparation method and application thereof
  • Anti-coking and anti-corrosion treatment agent for boiler, and preparation method and application thereof

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Embodiment 1

[0035] A boiler anti-coking and anti-corrosion treatment agent according to the present embodiment, said treatment agent includes 3 parts of zirconia, 5 parts of refractory fine soil, 5 parts of sodium soil powder, 13 parts of silicon carbide, boron nitride in parts by mass. 13 parts, 20 parts of brown corundum, 1.5 parts of cobalt oxide, 10 parts of chromium oxide green, 10 parts of aluminum oxide, 12 parts of phosphoric acid solution, 6 parts of aluminum dihydrogen phosphate solution, 1 part of graphene, 2 parts of carboxymethyl cellulose, 17 parts of water.

[0036] The fineness of the zirconia is 2500 mesh, the fineness of refractory fine soil is 1000 mesh, the fineness of sodium earth powder is 800 mesh, the fineness of silicon carbide is 2500 mesh, the fineness of boron nitride is 1500 mesh, The fineness of brown corundum is 3500 mesh, the fineness of cobalt oxide is 1200 mesh, the fineness of chromium oxide green is 3000 mesh, the fineness of alumina is 1500 mesh, the f...

Embodiment 2

[0049] A boiler anti-coking and anti-corrosion treatment agent according to the present embodiment, said treatment agent includes 5 parts of zirconia, 10 parts of refractory fine soil, 5 parts of sodium soil powder, 13 parts of silicon carbide, boron nitride in parts by mass. 15 parts, 25 parts of brown corundum, 2 parts of cobalt oxide, 10 parts of chromium oxide green, 10 parts of aluminum oxide, 10 parts of phosphoric acid solution, 5 parts of aluminum dihydrogen phosphate solution, 0.8-1 part of graphene, 1 carboxymethyl cellulose 15 parts, water 15 parts.

[0050] The fineness of the zirconia is 3000 mesh, the fineness of refractory fine soil is 1000 mesh, the fineness of sodium earth powder is 1000 mesh, the fineness of silicon carbide is 3000 mesh, the fineness of boron nitride is 1500 mesh, The fineness of brown corundum is 3500 mesh, the fineness of cobalt oxide is 1500 mesh, the fineness of chromium oxide green is 3000 mesh, the fineness of alumina is 1500 mesh, the ...

Embodiment 3

[0057] A boiler anti-coking and anti-corrosion treatment agent according to the present embodiment, the treatment agent includes 4 parts of zirconia, 8 parts of refractory fine soil, 4 parts of sodium soil powder, 12 parts of silicon carbide, boron nitride in parts by mass. 14 parts, 23 parts of brown corundum, 1.5 parts of cobalt oxide, 13 parts of chromium oxide green, 11 parts of aluminum oxide, 11 parts of phosphoric acid solution, 5.5 parts of aluminum dihydrogen phosphate solution, 0.9 parts of graphene, 1.5 parts of carboxymethyl cellulose, 16 parts of water.

[0058] The fineness of the zirconia is 2500 mesh, the fineness of refractory fine soil is 800 mesh, the fineness of sodium earth powder is 800 mesh, the fineness of silicon carbide is 2500 mesh, the fineness of boron nitride is 1500 mesh, The fineness of brown corundum is 3500 mesh, the fineness of cobalt oxide is 1200 mesh, the fineness of chromium oxide green is 3000 mesh, the fineness of alumina is 1500 mesh, ...

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Abstract

The invention belongs to the technical field of anti-coking treatment of boilers, and particularly relates to an anti-coking and anti-corrosion treatment agent for a boiler, and a preparation method and an application thereof. The treatment agent comprises 3-5 parts of zirconium oxide, 5-10 parts of refractory fine soil, 3-5 parts of sodium soil powder, 11-13 parts of silicon carbide, 13-15 partsof boron nitride, 20-25 parts of brown fused alumina, 1.5-2 parts of cobalt oxide, 10-15 parts of chromium oxide green, 10-12 parts of aluminum oxide, 10-12 parts of a phosphoric acid solution, 5-6 parts of an aluminum dihydrogen phosphate solution, 0.8-1 part of graphene, 1-2 parts of carboxymethyl cellulose and 15-17 parts of water. According to a method provided by the invention, the surface ofa heating surface is coated with a layer of material with nanoscale granularity and high radiance, so the surface of an object has high heat absorption and radiation capacity, the heat transfer efficiency of the object is improved, and the treatment method for solving boiler coking can effectively relieve and restrain boiler coking, and guarantee high-load, economical, safe and stable operation of the boiler. The method is low in cost, simple to implement and extremely obvious in effect.

Description

technical field [0001] The invention belongs to the technical field of boiler anti-coking treatment, in particular to a boiler anti-coking and anti-corrosion treatment agent and its preparation method and application. Background technique [0002] Some existing power plant boilers have different degrees of coking and slagging phenomenon. Due to severe coking in some power plants, boiler output is reduced by 10%-20%, and thermal efficiency is reduced by 1%-2.5%. The coking in the furnace will increase the heat transfer resistance of the heating surface, reduce the radiation heat absorption of the cold wall, increase the temperature of the flue gas at the furnace outlet, and affect the water circulation condition, causing the convection heating surface to overheat due to the increase in heat load; the burner Coking at the nozzle and its vicinity will change the jet flow and power conditions in the furnace, affecting air powder mixing and combustion; coking at the heating surfa...

Claims

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Application Information

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IPC IPC(8): C04B35/103C04B35/106C04B35/105F23M5/08
CPCC04B35/103C04B35/105C04B35/106C04B35/62222F23M5/08C04B2235/349C04B2235/386C04B2235/3826C04B2235/3275C04B2235/447C04B2235/425C04B2235/96C04B2235/9607C04B2235/77
Inventor 董培仑桂国喜
Owner 河南爱邦科技有限公司