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Far-infrared energy-saving radiation coating for high-temperature furnace

A technology of far-infrared radiation and high-temperature furnaces, applied in sustainable manufacturing/processing, climate sustainability, chemical industry, etc., can solve problems such as energy constraints on global economic development, energy and environmental pollution, and environmental pollution, and achieve good long-term Infrared radiation performance, high emissivity, high yield effect

Active Publication Date: 2020-04-14
河北弘华节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Far-infrared energy-saving radiation coating for high-temperature furnace
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  • Far-infrared energy-saving radiation coating for high-temperature furnace

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preparation example Construction

[0036] An embodiment of the present invention also provides a preparation method of the above-mentioned infrared radiation base material, using a sol-gel method, which comprises the following steps:

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

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

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

[0040] - calcining the precursor and grinding to obtain LaAl after cooling 1-x Ru x O 3 Nanoparticles.

[0041] In one embodiment of the present invention, the calcination 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 organic acids by...

Embodiment 1

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

[0070] 1) after lanthanum nitrate, aluminum nitrate and ruthenium nitrate are made into the aqueous solution of 0.2mol / L, then, by the mol ratio of La:Al:Ni, it is 1:0.6:0.4 to be mixed and prepared into A liquid;

[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) Mixing liquid A and liquid B according to the mass ratio of 1.25:1 for 1.5 h, then microwave irradiation for 4 min at a microwave power of 1000 W, then baked at 100 ° C for 15 h, and ground to obtain the precursor;

[0073] 4) The precursor was calcined in an air atmosphere of 1100 ° C for 3.5 h, cooled naturally in the furnace, and ground to obtain LaAl after cooling 0.6 Ru 0.4 O 3 Nanoparticles, i.e. base material for infrared radiation.

[0074] A far-infrared energy-saving radiation coating for high temperature furnaces and kilns...

Embodiment 2

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

[0078] 1) after lanthanum nitrate, aluminum nitrate and ruthenium nitrate are made into the aqueous solution of 0.2mol / L, then, the mol ratio of La:Al:Ni is 1:0.5:0.5 to be mixed and prepared into A liquid;

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

[0080] 3) Mixing liquid A and liquid B according to the mass ratio of 1.25:1 for 1.5 h, then microwave irradiation for 4 min at a microwave power of 1000 W, then baked at 100 ° C for 15 h, and ground to obtain the precursor;

[0081] 4) The precursor was calcined in an air atmosphere of 1100 ° C for 3.5 h, cooled naturally in the furnace, and ground to obtain LaAl after cooling 0.5 Ru 0.5 O 3 Nanoparticles, i.e. base material for infrared radiation.

[0082] A far-infrared energy-saving radiation coating for high temperature furnaces and kil...

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Abstract

The invention provides a far-infrared energy-saving radiation coating for a high-temperature furnace, and belongs to the technical field of energy-saving coatings. The infrared radiation coating comprises a far infrared radiation base material containing LaAl1-xRuxO3 nano particles, a regulator and a binder, and the preparation method of the infrared radiation base material comprises the followingsteps: preparing water solutions of lanthanum nitrate, aluminum nitrate and ruthenium nitrate, and mixing the water solution to prepare a solution A; dissolving amino acid and an organic acid into water, adding a catalyst to prepare a solution B; stirring and mixing the solution A and the solution B, then performing microwave radiation, drying and grinding to obtain a precursor; roasting the precursor, cooling, and grinding the precursor to obtain nano particles. The far-infrared radiation base material disclosed by the invention has a relatively good far-infrared radiation performance; the coating containing the far infrared radiation base material has relatively high emissivity and a relatively low heat conductivity coefficient, and a coating layer obtained by spraying the coating has agood far infrared radiation performance, a good heat insulation performance, an excellent bonding strength, thermal shock resistance and an 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 earth is limited, especially those non-renewable energy sources, such as coal mines, oil, natural gas and so on. On the one hand, the consumption of energy brings environmental pollution; 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 my country's environmental pollution is relatively serious. Among these total energy sources, the energy consumption of industrial furnaces accounts for about 25%....

Claims

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Application Information

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Patent Type & Authority Applications(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