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High-temperature-resistant and corrosion-resistant nano self-cleaning coating and preparation method and application thereof

A high-temperature-resistant and corrosion-resistant technology, applied in corrosion-resistant nano-self-cleaning coatings and high-temperature-resistant fields, can solve problems such as easy blockage, poor heat transfer effect, easy cracking and coking of the coke oven riser heat exchanger, and achieve excellent firmness , Improve production capacity, good heat exchange effect

Inactive Publication Date: 2017-03-29
江苏龙冶节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mixed gas in the coke oven raw gas riser heat exchanger may produce tar when the temperature is lower than 400 ° C. The tar is easy to adhere to the inner surface of the riser heat exchanger, and it is easy to crack and coke at high temperature, resulting in the coke oven riser The heat exchanger is easy to block, and the heat exchange effect is poor, which seriously affects the production

Method used

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  • High-temperature-resistant and corrosion-resistant nano self-cleaning coating and preparation method and application thereof
  • High-temperature-resistant and corrosion-resistant nano self-cleaning coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: get nano-silica 7kg, nano-zirconia 4kg, nano-scale ceramic powder 8kg, nano-titanium dioxide 6kg, nano-silicon nitride 2kg, nano-iron oxide 2kg, nano-magnesia 2kg, triphenyl phosphate 4kg, no 8kg of water ethanol, 2kg of aminosilane, and 50kg of water; wherein, the particle size of the nanoscale ceramic powder is 4nm.

[0019] Prepare high-temperature-resistant, corrosion-resistant nano self-cleaning coatings according to the following steps:

[0020] S01, 7kg nano-silica, 4kg nano-zirconia, 8kg nano-scale ceramic powder, 6kg nano-titanium dioxide, 2kg nano-silicon nitride, 2kg nano-iron oxide, 2kg nano-magnesia, 8kg absolute ethanol are added to 50kg water, While stirring at a stirring speed of 60r / min, use microwave heating to 55°C, keep stirring for 2-3 hours to obtain product A;

[0021] S02. Slowly add 4 kg of triphenyl phosphate to product A, heat to 75° C. with microwave while stirring at a stirring speed of 40 r / min, keep stirring for 2-3 hours to...

Embodiment 2

[0023] Embodiment 2: Get nano-silica 5kg, nano-zirconia 3kg, nano-scale ceramic powder 6kg, nano-titanium dioxide 5kg, nano-silicon nitride 1kg, nano-iron oxide 1kg, nano-magnesia 1kg, triphenyl phosphate 3kg, no 6kg of water ethanol, 1kg of aminosilane, and 30kg of water; wherein, the particle size of the nanoscale ceramic powder is 3nm.

[0024] Prepare high-temperature-resistant, corrosion-resistant nano self-cleaning coatings according to the following steps:

[0025] S01, 5kg nano-silica, 3kg nano-zirconia, 6kg nano-scale ceramic powder, 5kg nano-titanium dioxide, 1kg nano-silicon nitride, 1kg nano-iron oxide, 1kg nano-magnesia, 6kg absolute ethanol are added to 30kg water, Heat at 55°C in a water bath while stirring at a stirring speed of 60r / min, keep stirring for 2-3 hours to obtain product A;

[0026] S02. Slowly add 3 kg of triphenyl phosphate to product A, heat to 75° C. in a water bath while stirring at a stirring speed of 40 r / min, keep stirring for 2-3 hours to ...

Embodiment 3

[0028] Embodiment 3: Get nano-silica 8kg, nano-zirconia 5kg, nano-scale ceramic powder 10kg, nano-titanium dioxide 7kg, nano-silicon nitride 3kg, nano-iron oxide 3kg, nano-magnesia 3kg, triphenyl phosphate 5kg, no 10kg of water ethanol, 3kg of aminosilane, and 70kg of water; wherein, the particle size of the nanoscale ceramic powder is 5nm.

[0029] Prepare high-temperature-resistant, corrosion-resistant nano self-cleaning coatings according to the following steps:

[0030] S01, 8kg nano-silica, 5kg nano-zirconia, 10kg nano-scale ceramic powder, 7kg nano-titanium dioxide, 3kg nano-silicon nitride, 3kg nano-iron oxide, 3kg nano-magnesia, 10kg absolute ethanol are added to 70kg water, While stirring at a stirring speed of 60r / min, use electric heating to heat to 55°C, keep stirring for 2-3 hours under continuous stirring, and obtain product A;

[0031] S02. Slowly add 5 kg of triphenyl phosphate to product A, heat to 75° C. with electric heating while stirring at a stirring spe...

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Abstract

The invention discloses a high-temperature-resistant and corrosion-resistant nano self-cleaning coating and a preparation method and application thereof. The high-temperature-resistant and corrosion-resistant nano self-cleaning coating is prepared from, by weight, 5-8 parts of nano silicon dioxide, 3-5 parts of nano zirconium dioxide, 6-10 parts of nano-scale ceramic powder, 5-7 parts of nano titanium dioxide, 1-3 parts of nano silicon nitride, 1-3 parts of nano iron oxide, 1-3 parts of nano magnesium oxide, 3-5 parts of triphenyl phosphate, 6-10 parts of absolute ethyl alcohol, 1-3 parts of amino silane and 30-70 parts of water. The nano self-cleaning coating has excellent fastness, is resistant to high temperature, corrosion, acid and alkali, prevents oil contaminations and tar sagging and has oxidation resistance and other properties, the super-thinning and lubricating effect of CSH is excellent, and the nano self-cleaning coating is applied to a coke oven ascension pipe heat exchanger, so that a coke oven ascension pipe is non-coking, the heat exchanging effect of the heat exchanger is good, and the production capacity is improved.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a high-temperature-resistant and corrosion-resistant nanometer self-cleaning coating, as well as its preparation method and application. Background technique [0002] Coke oven gas, also known as coke oven gas, belongs to high calorific value gas, crude gas or raw coal gas due to its many combustible components. Coke oven raw gas is a mixture, and its yield and composition vary with the quality of coking coal and coking process conditions. The main components are hydrogen, methane, carbon monoxide, water, hydrogen sulfide and ammonia. The mixed gas in the coke oven raw gas riser heat exchanger may produce tar when the temperature is lower than 400 ° C. The tar is easy to adhere to the inner surface of the riser heat exchanger, and it is easy to crack and coke at high temperature, resulting in the coke oven riser The heat exchanger is easy to block, and the heat exchange effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/08C09D5/16C09D7/12
CPCC09D1/00C09D5/08C09D5/1687C09D5/18
Inventor 孟晓东汪琴刘建成高远孔秀宽高越
Owner 江苏龙冶节能科技有限公司
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