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A far-infrared energy-saving radiation coating for high-temperature furnaces

A high-temperature furnace, radiation coating technology, applied in sustainable manufacturing/processing, climate sustainability, chemical industry and other directions, can solve the problems of energy restricting global economic development, energy and environmental pollution, environmental pollution, etc. Radiant performance, high emissivity, high yield effect

Active Publication Date: 2021-04-13
河北弘华节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the consumption of energy brings pollution to the environment; on the other hand, the depletion of energy seriously restricts the development of the global economy
my country is a big energy-consuming country in the world. At present, there is still a certain gap between my country's energy utilization rate and developed countries in the world, and our country's environmental pollution is relatively serious. Among these total energy, the energy consumption of industrial furnaces accounts for about 25%. ~40%, and the thermal efficiency of the furnace is only about 30%

Method used

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  • A far-infrared energy-saving radiation coating for high-temperature furnaces
  • A far-infrared energy-saving radiation coating for high-temperature furnaces
  • A far-infrared energy-saving radiation coating for high-temperature furnaces

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preparation example Construction

[0036] One embodiment of the present invention also provides a method for preparing the above-mentioned infrared radiation base material, using a sol-gel method, which includes the following steps:

[0037] - Make lanthanum nitrate, aluminum nitrate and ruthenium nitrate into aqueous solution and then mix them to prepare liquid A;

[0038] -Dissolve amino acid and organic acid in water, add catalyst, and prepare liquid B;

[0039] -Stir and mix liquid A and liquid B, then irradiate with microwaves, dry and grind to obtain the precursor;

[0040] -Roast the precursor, cool it and grind it to get LaAl 1-x Ru x o 3 Nanoparticles.

[0041] In one embodiment of the present invention, the firing temperature is 1000-1200°C, such as 1050°C, 1085°C, 1100°C, 1110°C, 1125°C, 1140°C, 1150°C, 1160°C, 1175°C, 1180°C, 1190°C, etc. . The preparation method of the present invention utilizes the sol-gel method to prepare LaAl 1-x Ru x o 3 Nanoparticles, polymerize amino acids and organ...

Embodiment 1

[0069] The preparation method of infrared radiation base material, comprises the following steps:

[0070] 1) After making lanthanum nitrate, aluminum nitrate, and ruthenium nitrate into a 0.2mol / L aqueous solution, then mix and prepare liquid A according to the molar ratio of La:Al:Ru of 1:0.6:0.4;

[0071] 2) Dissolve glutamic acid and citric acid in water at a molar ratio of 1:1, add a catalyst, and prepare liquid B;

[0072] 3) Stir and mix liquid A and liquid B at a mass ratio of 1.25:1 for 1.5 hours, then irradiate with microwaves at a microwave power of 1000W for 4 minutes, then bake at 100°C for 15 hours, and grind to obtain the precursor;

[0073] 4) The precursor was roasted in an air atmosphere at 1100°C for 3.5 hours, cooled naturally in the furnace, and ground to obtain LaAl after cooling 0.6 Ru 0.4 o 3 Nanoparticles, i.e. infrared radiation binders.

[0074] A far-infrared energy-saving radiation coating for high-temperature furnaces, which includes: 14 parts...

Embodiment 2

[0077] The preparation method of infrared radiation base material, comprises the following steps:

[0078] 1) After making lanthanum nitrate, aluminum nitrate, and ruthenium nitrate into a 0.2mol / L aqueous solution, then mix and prepare liquid A according to the molar ratio of La:Al:Ru of 1:0.5:0.5;

[0079] 2) Dissolve glutamic acid and malic acid in water at a molar ratio of 1:1, add a catalyst, and prepare liquid B;

[0080] 3) Stir and mix liquid A and liquid B at a mass ratio of 1.25:1 for 1.5 hours, then irradiate with microwaves at a microwave power of 1000W for 4 minutes, then bake at 100°C for 15 hours, and grind to obtain a precursor;

[0081] 4) The precursor was roasted in an air atmosphere at 1100°C for 3.5 hours, cooled naturally in the furnace, and ground to obtain LaAl after cooling 0.5 Ru 0.5 o 3 Nanoparticles, i.e. infrared radiation binders.

[0082] A far-infrared energy-saving radiation coating for high-temperature furnaces, which includes: 14 parts by...

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Abstract

The invention provides a far-infrared energy-saving radiation coating for high-temperature furnaces, which belongs to the technical field of energy-saving coatings and includes LaAl 1‑x Ru x o 3 The far-infrared radiation base material, regulator, and binder of nanoparticles, the preparation method of the above-mentioned infrared radiation base material includes the following steps: making lanthanum nitrate, aluminum nitrate, and ruthenium nitrate into aqueous solutions and then mixing them to form A liquid; Dissolve organic acid in water, add catalyst, and prepare liquid B; stir and mix liquid A and liquid B, then irradiate with microwaves, dry, and grind to obtain a precursor; roast the precursor, cool, and grind to obtain nanoparticles. The far-infrared radiation base-material of the present invention has better far-infrared radiation properties, and the coating that comprises the far-infrared radiation base-material of the present invention has higher emissivity and lower thermal conductivity, and the coating that the coating spraying of the present invention obtains has good Far-infrared radiation performance and heat insulation performance, excellent bonding strength and thermal shock resistance, and energy-saving effect.

Description

technical field [0001] The invention belongs to the technical field of energy-saving coatings, in particular to a far-infrared energy-saving radiation coating for high-temperature furnaces. Background technique [0002] With the rapid development of the world economy, the consumption of energy is also increasing day by day. However, the energy on the earth is limited, especially those non-renewable energy sources, such as coal mines, oil, and natural gas. On the one hand, the consumption of energy brings pollution to the environment; on the other hand, the depletion of energy seriously restricts the development of the global economy. my country is a big energy-consuming country in the world. At present, there is still a certain gap between my country's energy utilization rate and developed countries in the world, and our country's environmental pollution is relatively serious. Among these total energy, the energy consumption of industrial furnaces accounts for about 25%. ~40...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/44C04B35/624C04B35/626C04B35/14C04B35/622C04B41/87
CPCC04B35/44C04B35/624C04B35/626C04B35/14C04B35/62222C04B41/87C04B41/5035C04B2235/3227C04B2235/3289C04B2235/3418C04B2235/3287C04B2235/3286C04B2235/9607C04B41/5032C04B41/5027C04B41/4543C04B41/0072Y02P20/10
Inventor 于文齐平玉峰张峰
Owner 河北弘华节能科技有限公司