Surface treatment method for self-cleaning anti-jamming demister blade

A surface treatment and demister technology, which is applied in the field of demister blade treatment, to achieve the effect of reducing the cost of descaling, excellent binding force, and avoiding fouling and clogging

Active Publication Date: 2015-12-30
武汉珈合实业投资管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these methods can only inhibit the fouling phenomenon and delay its clogging, and still need to manually clean the demister or flush it with high-pressure water on a regular basis, which cannot fundamentally solve the problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The surface treatment method of self-cleaning anti-clogging mist eliminator blade (PP material), the steps are as follows:

[0024] 1) Spraying an ethyl acetate solution (10wt%) containing perchlorethylene on the surface of the demister blade, drying and curing at room temperature to obtain a perchlorethylene resin layer on the surface of the demister blade;

[0025] 2) in step 1) gained perchlorethylene resin layer surface coating UV photocurable coating (prescription is: polyester acrylate 40wt%, TMPTA38wt%, TPGDA20wt%, photoinitiator 1841wt%, photoinitiator 11731wt%), then Spray the super-hydrophobic coating 4mm away from the demister blades under 2-3 atmospheric pressure, put the super-hydrophobic coating at room temperature for 30 minutes, put it in an oven at 100°C to cure for 1 hour, then cool to room temperature, and then place the demister blades on the Cured under UV light for 20s, then cooled to room temperature.

Embodiment 2

[0027] The surface treatment method of self-cleaning anti-clogging mist eliminator blade (PP material), the steps are as follows:

[0028] 1) Spraying an ethyl acetate solution (concentration of 8wt%) containing perchlorethylene on the surface of the demister blade, drying and curing at room temperature to obtain a perchlorethylene resin layer on the surface of the demister blade;

[0029] 2) in step 1) the gained perchlorethylene resin layer surface is coated with UV photocurable paint (prescription is: polyester acrylate 20%, polyurethane acrylate 20%, TMPTA37%, TPGDA20%, photoinitiator 1841%, photoinitiation agent 11732%), and then spray the super-hydrophobic coating 6mm away from the demister blade under 2-3 atmospheric pressure, place the super-hydrophobic coating at room temperature for 45min, then put it into an oven to cure at 90°C for 1 hour, then cool to room temperature, and then Put the defogger blade under the UV lamp to cure for 20s, and wait until it cools down ...

Embodiment 3

[0031] The surface treatment method of self-cleaning anti-clogging mist eliminator blade (PP material), the steps are as follows:

[0032] 1) Spraying an ethyl acetate solution (concentration of 5wt%) containing perchlorethylene on the surface of the demister blade, drying and curing at room temperature to obtain a perchlorethylene resin layer on the surface of the demister blade;

[0033] 2) in step 1) the gained perchlorethylene resin layer surface is coated with UV photocurable paint (prescription is: polyester acrylate 20%, epoxy acrylate 20%, TMPTA37%, TPGDA20%, photoinitiator 1841%, light Initiator 11732%), then spray the super-hydrophobic coating at 5 mm away from the demister blade under 2-3 atmospheric pressure, place the super-hydrophobic coating at room temperature for 60 minutes and then put it into an oven to solidify at 80 ° C for 1 hour, then cool to room temperature, Then put the demister blade under the UV lamp to cure for 35s, and wait until it cools down to ...

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PUM

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Abstract

The invention relates to a surface treatment method for a self-cleaning anti-jamming demister blade. The demister blade is prepared from a PP material. The method comprises the following steps: 1) spraying a solution containing chlorinated polyvinyl chloride on the surface of the demister blade and carrying out drying and curing at room temperature so as to obtain a chlorinated polyvinyl chloride resin layer on the surface of the demister blade; and 2) coating the surface of the chlorinated polyvinyl chloride resin layer with a UV light-cured paint, then spraying a super-hydrophobic coating and curing the demister blade under a UV lamp after drying and curing of the super-hydrophobic coating. With the surface treatment method for demister blade, the phenomena of fouling and obstruction of the demister blade can be fundamentally avoided, and descaling cost is reduced; the coated coating has excellent bonding force with the base material (i.e., the demister blade), and adhesion reaches more than grade 2 in testing according to the Standard GB/T9286-1998; and the demister blade can working for a long time in a high temperature wet environment and has high economic and environmental benefits.

Description

technical field [0001] The invention relates to a treatment method for a demister blade in a wet smoke desulfurization device, in particular to a surface treatment method for a self-cleaning anti-blocking demister blade. Background technique [0002] The mist eliminator system consists of the mist eliminator body and the flushing system, specifically including the mist eliminator body, flushing water pipes, nozzles, support frames, support beams and related connections, fixations, seals, etc. The demister body is mainly composed of plates and supporting devices, and the plates (that is, the demister blades) are usually made of polymer materials (such as polypropylene PP, FRP, etc.) or stainless steel (such as 316L, 317L, etc.) Made of materials, generally divided into streamlined and broken lines. [0003] The demister system is usually arranged at the top of the absorption tower. When the sulfur-containing flue gas passes through the reaction zone of the absorption tower, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08L23/12C09D167/06C09D175/14C09D163/10C09D127/24C09D7/12B05D1/38B05D7/04
Inventor 辛闻袁军张富青
Owner 武汉珈合实业投资管理有限公司
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