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Anticorrosion and acid-resistant glue for wet desulfurization chimney and preparation method thereof

A wet desulfurization and chimney technology, which is applied in the direction of anti-corrosion coatings, adhesives, polycarbonate coatings, etc., can solve problems such as waste, and achieve the effects of increasing the service life, saving operating costs, and reducing the impact on personnel health

Active Publication Date: 2015-11-25
SHANGHAI JORLE FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] With this technology, organic silica gel is mainly used to bond foamed glass bricks in the market now. Since silica gel is not acid-resistant at all, the foamed glass bricks bonded with silica gel will be repaired in two or three years, and some even re-constructed, causing great damage. waste

Method used

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  • Anticorrosion and acid-resistant glue for wet desulfurization chimney and preparation method thereof
  • Anticorrosion and acid-resistant glue for wet desulfurization chimney and preparation method thereof
  • Anticorrosion and acid-resistant glue for wet desulfurization chimney and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070]

[0071] In the first step, the No. 10 petroleum pitch, polycarbonate diol and styrene-butadiene-styrene copolymer resin are heated in the kettle until No. 10 petroleum pitch melts, and two high-shear The emulsifier emulsifies and disperses the asphalt and the other two components evenly, the temperature of the kettle is controlled at 150-200 degrees, and the vacuum pressure in the kettle is controlled at 200-300Pa;

[0072] The second step is to close the emulsifier, open the atmosphere, put in the above-mentioned silicon micropowder, dibutyltin dilaurate and white carbon black, open the high-speed disperser under vacuum and heat preservation, and disperse at 600-1500 rpm to obtain a paste-like finished product , the vacuum pressure is controlled at 200-300Pa, the kettle temperature is controlled at 110-130 degrees, and the moisture in the system is fully removed;

[0073] The third step is to put in No. 200 solvent oil and quickly disperse evenly under airtight con...

Embodiment 2

[0077]

[0078] In the first step, the No. 10 petroleum pitch, polycarbonate diol (M=2000) and styrene-butadiene-styrene copolymer resin are heated in a kettle until No. 10 petroleum pitch is melted, and the Turn on two high-shear emulsifiers to emulsify and disperse the asphalt and the other two components evenly, control the temperature of the kettle at 150-200 degrees, and control the vacuum pressure in the kettle at 200-300Pa;

[0079] The second step is to close the emulsifier, open the atmosphere, put in the above-mentioned silicon micropowder, dibutyltin dilaurate and white carbon black, open the high-speed disperser under vacuum and heat preservation, and disperse at 600-1500 rpm to obtain a paste-like finished product , the vacuum pressure is controlled at 200-300Pa, the kettle temperature is controlled at 110-130 degrees, and the moisture in the system is fully removed;

[0080] The third step is to put in No. 200 solvent oil and quickly disperse evenly under airt...

Embodiment 3

[0084]

[0085] Shear strength (steel-steel) After 2MPa acid soaking (40% sulfuric acid, 80 degrees Celsius, 7 days), the tensile strength retention rate is 110%.

[0086] Note: The curing condition of the above formula is 7 days at 25 degrees Celsius.

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Abstract

The invention discloses anti-corrosion acid-resistant glue for a wet-process desulfurization chimney. The anti-corrosion acid-resistant glue comprises the following components in percentage by weight: component A: 20-60% of asphalt, 10-50% of polyatomic alcohol, 2-40% of viscosifying resin, 10-50% of inorganic acid-resistant filler, 2-20% of rheological additive, 0.01-1% of catalyst and 5-10% of solvent; and component B: 3-10% of polyisocyanate. The invention also discloses a preparation method of the anti-corrosion acid-resistant glue for the wet-process desulfurization chimney. The invention has the beneficial effects that the anti-corrosion acid-resistant glue contains a little amount of solvent, the influence of the solvent to the health of staffs and the pollution of the solvent to the environment are greatly reduced; and the inner part of the chimney is relative-closed environment and over-high solvent solubility in the air has influence on the construction safety.

Description

technical field [0001] The invention relates to an anti-corrosion and acid-resistant glue, more specifically, the invention relates to an anti-corrosion and acid-resistant glue for wet desulfurization chimneys and a preparation method thereof. Background technique [0002] With the increasing implementation of the country's environmental protection policies in the power industry, coal-fired generating units must be installed with wet desulfurization devices within a time limit. At present, major thermal power groups are actively responding to the national environmental protection policy, increasing flue gas desulfurization efforts, and striving to make the smoke emission concentration of their respective power plants meet the environmental protection standards stipulated by the state within the regular time limit. [0003] In the past, my country's thermal power industry emitted high-temperature flue gas, which was less corrosive to the flue and chimney. In addition, in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00C09J169/00C09J153/02C09J109/00C09J123/08C09J11/04C09D195/00C09D169/00C09D153/02C09D5/08
Inventor 邓惠山段德坤
Owner SHANGHAI JORLE FINE CHEM
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