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Chimney special high temperature anti-corrosion coating 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: 2022-07-29
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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  • Chimney special high temperature anti-corrosion coating and composite resin glass fiber reinforced plastic spraying process
  • Chimney special high temperature anti-corrosion coating and composite resin glass fiber reinforced plastic spraying process
  • Chimney special high temperature anti-corrosion coating 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 adopts high temperature resistant composite resin glass fiber reinforced plastic coating, and the construction process is as follows:

[0035] Surface treatment of the base layer: Use special tools to clean the surface of the inner lining and use the sandblasting process to knock off the residue to expose the clean inner lining surface (individually corroded and fluffy bricks should be dug up for local treatment), and finally use high pressure Water for rinsing and dust removal.

[0036] Treatment of the surface flatness of the lining: The corroded parts should be removed and filled in time with dilute acid-resistant mortar. First, use the special mortar for dilute acid resistance to carry out a general batch wiping on the lining surface, so that the anti-corrosion base surface forms a relatively flat surface, and fill the brick joints once to prevent the desulfurization condensate from seeping out through the...

Embodiment 2

[0042] The process is the same as that of Example 1, and the parameter difference is as follows:

[0043] The thickness of the mortar layer during the treatment of the surface flatness of the inner lining is 12mm, and the thickness of the structure layer of the composite resin coating is 1.4mm. 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 and 3 parts by mass of imported curing agent.

Embodiment 3

[0045] The process is the same as that of Example 1, and the parameter difference is as follows:

[0046] The thickness of the mortar layer in the treatment of the surface flatness of the inner lining is 15mm, and the thickness of the structure layer of the composite resin coating is 1.5mm. The raw materials of the composite resin coating include 40 parts by mass of modified silicone resin, 10 parts by mass of fumed 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 and 3 parts by mass of imported curing agent.

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Abstract

The invention relates to the field of chimney anti-corrosion. In order to solve the problems of low bonding strength, high temperature resistance, short service life, poor anti-aging performance, etc. existing in the existing chimney anti-corrosion coatings and processes, a special high-temperature anti-corrosion coating for chimneys and a composite chimney are disclosed. Resin glass fiber reinforced plastic spraying process, the special high-temperature anti-corrosion coating for chimneys includes composite resin coating and glass fiber mixed with jet wire, and the raw materials of the composite resin coating include modified silicone resin, fumed silica, graphite powder, xylene, active Thin material, refined coal tar, defoamer and imported curing agent. The invention utilizes the advantages of good high temperature resistance of silicone resin and high bonding strength of epoxy resin and good corrosion resistance, and polymerizes the two in a reaction kettle, and generates a new product with good high temperature resistance and corrosion resistance through catalyst. Composite resin; in addition, the usual fiberglass fiber cloth is fiberized and added to the coating. The temperature resistance of ordinary FRP smoke exhaust can only reach the limit of 130 ℃, and it can be increased to 250 ℃.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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