Internal wall anticorrosive coating for sea water evaporating installation

Abstract

The invention relates to endophragm anticorrosion dope of carbon steel material vaporizing equipments in seawater desalting craft of low temperature and multiple effect distillation. It mainly comprises basic materials, pigment, padding, auxiliary agent and solvent. The basic materials are one or more than one kind of epoxy resin and painthydroxybenzene modified thermostable resins. The painthydroxybenzene modified thermostable resins are one or more than one kind of painthydroxybenzene silicon resin, painthydroxybenzene furol resin and painthydroxybenzene titanium resin got from chemical modification of painthydroxybenzene distilled from fresh paint; the color padding is one or more than one kind of titanium oxide powder, talcum powder, mica powder, mica ferric oxide, gas phase silicon dioxide, silica flour, porcelain powder and bentonite. The dope is solidified at room temperature. It has excellent permeability resistance of water, seawater and vapor at high temperature and is suitable to anticorrosion of low temperature.

Description

technical field

[0001] The invention relates to an anti-corrosion coating, in particular to an anti-corrosion coating for the inner wall of seawater evaporation equipment. It is mainly about anti-corrosion coatings on the inner wall of carbon steel evaporation equipment in the low-temperature multi-effect distillation seawater desalination process, especially the coatings that are cured at room temperature and have stable performance for high-temperature water, seawater, and steam mixed media. Background technique

[0002] The shortage of fresh water resources has attracted worldwide attention, and China is one of the 13 most water-scarce countries in the world. In addition to drinking water, the year-by-year increase in industrial water consumption has increased the demand for fresh water resources. Therefore, the seawater desalination industry has received more and more attention and has become a hot spot for ocean development in the 21st century. The low-temperature mult...

Examples

Embodiment 1

[0030] Component Weight (%)

[0031] Component A: Epoxy resin 26.0

[0032] Urushiol silicone resin 22.0

[0033] Titanium dioxide 15.0

[0034] Mica 5.0

[0035] Talc 6.0

[0036] Porcelain powder 9.0

[0037] Bentonite 1.0

[0038] Solvent 6.0

[0039] Defoamer 0.5

[0040] Leveling agent 0.5

[0041] B component: Phenalkamine curing agent 9.0

Embodiment 2

[0043] Component Weight (%)

[0044] Component A: Epoxy resin 21.0

[0045] Urushiol furfural resin 30.0

[0046] Titanium dioxide 5.0

[0047] Mica 5.0

[0048] Talc 10.0

[0049] Mica Iron Oxide 15.0

[0050] Bentonite 1.0

[0051] Solvent 5.0

[0052] Defoamer 0.7

[0053] Leveling agent 0.3

[0054] B component: Aromatic amine curing agent 7.0

Embodiment 3

[0056] Component Weight (%)

[0057] Component A: Epoxy resin 28.0

[0058] Urushinovolac epoxy resin 10.0

[0059] Titanium dioxide 21.0

[0060] Mica 4.0

[0061] Talc 6.0

[0062] Silicon fume 12.0

[0063] Silane coupling agent 0.5

[0064] Fumed silica 1.5

[0065] Solvent 6.0

[0066] Defoamer 0.4

[0067] Leveling agent 0.6

[0068] B component: Phenalkamine curing agent 10.0

technical field

[0001] The invention relates to an anti-corrosion coating, in particular to an anti-corrosion coating for the inner wall of seawater evaporation equipment. It is mainly about anti-corrosion coatings on the inner wall of carbon steel evaporation equipment in the low-temperature multi-effect distillation seawater desalination process, especially the coatings that are cured at room temperature and have stable performance for high-temperature water, seawater, and steam mixed media. Background technique

[0002] The shortage of fresh water resources has attracted worldwide attention, and China is one of the 13 most water-scarce countries in the world. In addition to drinking water, the year-by-year increase in industrial water consumption has increased the demand for fresh water resources. Therefore, the seawater desalination industry has received more and more attention and has become a hot spot for ocean development in the 21st century. The low-temperature mult...

Examples

Embodiment 1

[0030] Component Weight (%)

[0031] Component A: Epoxy resin 26.0

[0032] Urushiol silicone resin 22.0

[0033] Titanium dioxide 15.0

[0034] Mica 5.0

[0035] Talc 6.0

[0036] Porcelain powder 9.0

[0037] Bentonite 1.0

[0038] Solvent 6.0

[0039] Defoamer 0.5

[0040] Leveling agent 0.5

[0041] B component: Phenalkamine curing agent 9.0

Embodiment 2

[0043] Component Weight (%)

[0044] Component A: Epoxy resin 21.0

[0045] Urushiol furfural resin 30.0

[0046] Titanium dioxide 5.0

[0047] Mica 5.0

[0048] Talc 10.0

[0049] Mica Iron Oxide 15.0

[0050] Bentonite 1.0

[0051] Solvent 5.0

[0052] Defoamer 0.7

[0053] Leveling agent 0.3

[0054] B component: Aromatic amine curing agent 7.0

Embodiment 3

[0056] Component Weight (%)

[0057] Component A: Epoxy resin 28.0

[0058] Urushinovolac epoxy resin 10.0

[0059] Titanium dioxide 21.0

[0060] Mica 4.0

[0061] Talc 6.0

[0062] Silicon fume 12.0

[0063] Silane coupling agent 0.5

[0064] Fumed silica 1.5

[0065] Solvent 6.0

[0066] Defoamer 0.4

[0067] Leveling agent 0.6

[0068] B component: Phenalkamine curing agent 10.0