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A permeable cross-linked reinforced anti-corrosion material for concrete cooling towers and its application

A technology of anti-corrosion materials and reinforcement materials, applied in the field of building materials, can solve the problems of destroying concrete, concrete performance and structural stability decline, and achieve the effects of improving compressive strength, solving performance and structural stability decline, and improving compactness

Active Publication Date: 2022-04-19
北京固斯特国际化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned scheme is mainly aimed at the anti-corrosion protection of the newly-built cooling tower, and there are still some deficiencies in the repair and maintenance of the cooling tower after corrosion: Pre-salt-resistant reinforcement treatment is carried out on the concrete base surface, so these salts in the concrete will continue to damage the concrete; ② The structural damage of the concrete (such as structural concrete cracks, etc.) is not addressed in this plan Therefore, there is still a considerable risk of performance and structural stability degradation of concrete

Method used

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  • A permeable cross-linked reinforced anti-corrosion material for concrete cooling towers and its application
  • A permeable cross-linked reinforced anti-corrosion material for concrete cooling towers and its application
  • A permeable cross-linked reinforced anti-corrosion material for concrete cooling towers and its application

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preparation example Construction

[0062] Preferably, the preparation method of the micron-sized diamine@MOF particles comprises: adding aluminum nitrate and 4,4'-biphenyldicarboxylic acid to the Disperse evenly in water, heat up to 160-200°C, then adjust the pH of the resulting solution to 2-4, and keep it warm for 5-10 hours; after the reaction, filter, wash, dry and pulverize to obtain micron-sized aluminum MOF particles ;Immerse aluminum MOF particles in a diamine solution (isophoronediamine, m-phenylenediamine or m-xylylenediamine), let it stand for 2-4h for adsorption, and centrifuge to obtain micron-sized diamine@MOF particles.

[0063] A method for strengthening and anti-corrosion treatment of cooling towers, comprising the following steps:

[0064] S1: Clean up the cooling tower base.

[0065] S2: Spray anti-salt reinforcement material to the cooling tower substrate for anti-salt reinforcement treatment (amount of 90-110g / m 2 ) to prevent salt substances from further invading the cooling tower matri...

Embodiment 1

[0071] A permeable cross-linked reinforced anti-corrosion material for concrete cooling towers, including salt-resistant reinforcing material, base surface repair mortar, base surface reinforcement material, bottom layer anti-corrosion material and surface layer anti-corrosion material, which are sequentially coated or injected on the concrete base surface The anti-corrosion material of the surface layer is divided into the anti-corrosion material of the inner wall surface layer and the anti-corrosion material of the outer wall surface layer; wherein:

[0072] The salt-resistant reinforcing material includes the following components in mass percentage: 3.5% of potassium silicate with a maximum particle size of less than 20nm, 15% of acrylate polymer, 3.5% of polysiloxane, 0.75% of ethoxylated tridecyl alcohol, water balance.

[0073] technical name Technical data main ingredient polymer, silicate particle diameter 20nm density 1.03g / cm 3

...

Embodiment 2

[0086] A permeable cross-linked reinforced anti-corrosion material for concrete cooling towers, including salt-resistant reinforcing material, base surface repair mortar, base surface reinforcement material, bottom layer anti-corrosion material and surface layer anti-corrosion material, which are sequentially coated or injected on the concrete base surface The anti-corrosion material of the surface layer is divided into the anti-corrosion material of the inner wall surface layer and the anti-corrosion material of the outer wall surface layer; wherein:

[0087] The salt-resistant reinforcing material includes the following components in mass percentage: 2% of potassium silicate with a maximum particle size of less than 20nm, 20% of acrylate polymer, 2% of polysiloxane, 1% of ethoxylated tridecyl alcohol, Water 75%.

[0088] The base surface repair mortar includes the following components in mass percentage: 55% of natural quartz sand, and the specific surface area is greater th...

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Abstract

The invention relates to the field of building materials, and discloses a permeable and cross-linked reinforced anti-corrosion material for concrete cooling towers and its application. The reinforced anti-corrosion material includes salt-resistant reinforcing materials, base surface repair mortar, base surface reinforcement materials, and bottom anti-corrosion materials. and surface anti-corrosion materials; the surface anti-corrosion materials are divided into inner wall surface anti-corrosion materials and outer wall surface anti-corrosion materials. In the present invention, the salt-resistant reinforcing material is used to carry out deep salt-resistant reinforcing treatment on the concrete to prevent the salt substances in the cooling tower structure from continuing to damage the base layer; then the base surface repair mortar is used to repair the surface defects of the cooling tower structure, and then through Inject base surface reinforcement materials for reinforcement treatment, making the above materials and concrete permanently integrated, preventing the repaired part from loosening and cracking again. Finally, the bottom layer and the surface layer of anti-corrosion materials are applied in order to further achieve the effect of strengthening anti-corrosion.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a permeable cross-linked reinforcement anticorrosion material for concrete cooling towers and an application thereof. Background technique [0002] The natural draft cooling tower is a facility that cools the circulating water by utilizing the difference in air density inside and outside the tower or the air convection effect formed by natural wind. The base body of the cooling tower is mainly made of concrete. Due to the particularity of its use environment, the concrete is very susceptible to corrosion. Especially for cooling towers using seawater or urban reclaimed water for circulating water, and for exhaust cooling towers that use cooling towers to discharge desulfurized flue gas, the corrosion is particularly serious. In addition, the cooling towers located in the north are extremely vulnerable to freezing and thawing damage due to the severe cold weather. [0003] It ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/08C04B28/04C04B26/06C09D133/04C09D7/61C09D7/63C09D7/65C09J163/02C09J11/08C09D163/00C04B41/89C04B111/72C04B111/20C04B111/26
CPCC04B28/04C04B26/06C09D133/04C09D5/08C09D7/61C09D7/63C09D7/65C09J163/00C09J11/08C09D163/00C04B41/89C04B41/52C04B2111/20C04B2111/72C04B2111/26C04B2111/00482C08L2205/025C08K2003/265C08K2003/2241C04B14/068C04B24/2688C04B24/383C04B24/405C04B24/2611C04B18/141C04B14/06C04B14/28C04B14/305C08L83/04C08K3/34C08K5/06C08L63/00C08K3/26C08K3/22C04B41/5024C04B41/4961C04B41/483C04B41/5079C04B41/5035C04B41/4803C04B41/50C04B41/4861C04B41/4853C04B41/463C04B41/4905C04B41/4896C04B41/46C04B41/501C04B41/5041C04B41/4892
Inventor 缪红波曾婷婷程义明
Owner 北京固斯特国际化工有限公司
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