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Special high-temperature-resistant anticorrosive paint for chimney and composite resin glass fiber reinforced plastic spraying process

A composite resin, anti-corrosion spraying technology, applied in anti-corrosion coatings, fire-retardant coatings, asphalt coatings, etc., can solve the problems of poor anti-aging performance, short service life, low bonding strength, etc., achieve good corrosion resistance, low cost, The effect of short renovation period

Active Publication Date: 2021-10-19
太原市奥爱姆烟囱材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of low bonding strength, high temperature resistance, short service life and poor anti-aging performance in the existing chimney anti-corrosion coatings and processes, and further provide a special high-temperature anti-corrosion coating and composite resin for chimneys FRP spraying process

Method used

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  • Special high-temperature-resistant anticorrosive paint for chimney and composite resin glass fiber reinforced plastic spraying process
  • Special high-temperature-resistant anticorrosive paint for chimney and composite resin glass fiber reinforced plastic spraying process
  • Special high-temperature-resistant anticorrosive paint for chimney and composite resin glass fiber reinforced plastic spraying process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An anti-corrosion spraying process for old concrete chimneys, using high-temperature-resistant composite resin glass fiber reinforced plastic coatings, the construction process is as follows:

[0035] Basic surface treatment: Use special tools to clean the lining surface and remove the residue by sandblasting to expose a clean lining surface (some bricks that have been corroded and crispy should be excavated for partial treatment), and finally use high pressure Rinse with water to remove dust.

[0036] Treatment of inner lining surface flatness: The corroded part should be removed and filled in time with dilute acid-resistant mortar. Firstly, the surface of the inner lining is generally wiped with a special mortar resistant to dilute acid, so that the anti-corrosion base surface forms a relatively flat surface, and the brick joints are filled once to prevent the desulfurization condensed water from seeping out through the brick joints. The thickness of the mortar layer...

Embodiment 2

[0042] Technology is identical with embodiment 1 process, and parameter difference is as follows:

[0043] The thickness of the mortar layer is 12mm, and the thickness of the composite resin coating structure layer is 1.4mm when the surface smoothness of the inner lining is treated. The raw materials of the composite resin coating include 30 parts by mass of modified silicone resin, 8 parts by mass of fumed silica, 12 parts by mass of graphite powder, 20 parts by mass of xylene, 20 parts by mass of active thinner, 8 parts by mass of refined coal tar, defoaming 2 parts by mass of agent, 3 parts by mass of imported curing agent.

Embodiment 3

[0045] Technology is identical with embodiment 1 process, and parameter difference is as follows:

[0046] The thickness of the mortar layer is 15mm, and the thickness of the composite resin coating structure layer is 1.5mm when the surface smoothness of the inner lining is treated. The raw materials of the composite resin coating include 40 parts by mass of modified silicone resin, 10 parts by mass of fume silica, 15 parts by mass of graphite powder, 20 parts by mass of xylene, 25 parts by mass of active thinner, 10 parts by mass of refined coal tar, defoaming 2 parts by mass of agent, 3 parts by mass of imported curing agent.

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Abstract

The invention relates to the field of chimney corrosion prevention, and discloses a special high-temperature-resistant anticorrosive paint for a chimney and a composite resin glass fiber reinforced plastic spraying process in order to solve the problems of low bonding strength, no high-temperature resistance, short service life, poor aging resistance and the like in the existing chimney anticorrosive paint and process. The special high-temperature-resistant anticorrosive coating for the chimney comprises a composite resin coating and glass fibers which are used by mixing jet filaments, wherein the raw materials of the composite resin coating comprise modified silicon resin, gas silicon powder, graphite powder, xylene, an active thinner, refined coal tar, a defoaming agent and an imported curing agent. By utilizing the advantages of good high temperature resistance of the organic silicon resin and high bonding strength and good corrosion resistance of the epoxy resin, the organic silicon resin and the epoxy resin are subjected to polymerization reaction in a reaction kettle, and new composite resin with good high temperature resistance and good corrosion resistance is generated through a catalyst; and in addition, common glass fiber reinforced plastic fiber cloth is fiberized and added into the coating. The smoke exhaust temperature resistance of common glass fiber reinforced plastic can only reach the limit 130 DEG C and is improved to 250 DEG C.

Description

technical field [0001] The invention relates to the field of anti-corrosion of chimneys, in particular to a special high-temperature-resistant anti-corrosion paint and composite resin glass fiber reinforced plastic spraying process for the inner lining of concrete chimneys and steel chimneys after desulfurization and denitrification. Background technique [0002] my country is a country that uses coal as its main energy structure. The sustained and stable growth of the national economy and the increase in electricity demand have effectively promoted the development of the thermal power generation industry. Wet flue gas desulfurization (WFGD) has gradually become the most widely used and most adaptable flue gas desulfurization technology due to its mature, reliable, stable and efficient characteristics, and its desulfurization efficiency can reach 98%. [0003] After the wet desulfurization and denitrification process is adopted, the dry flue gas in the chimney operation chan...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D183/04C09D163/00C09D195/00C09D7/61B05D1/36C04B28/06C04B111/72
CPCC09D5/08C09D5/18C09D183/04C09D7/61C09D7/70B05D1/36B05D7/5883C04B28/06C08L2201/08B05D2518/10B05D2301/00B05D2320/00B05D2504/00C04B2111/72C04B2111/00482C08L63/00C08L95/00C08K7/26C08K3/04B05D2425/01B05D2425/02C04B18/146C04B20/0048C04B2103/0068C04B14/06
Inventor 王金兴王玲潘利国张万林
Owner 太原市奥爱姆烟囱材料有限公司
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