The chimney anti-corrosion construction is usually by improving the corrosion resistance of the surface of the chimney, it is only temporary. Jiangsu star air that chimney anticorrosion should not only be temporary, also need to cure. Chimney anti-corrosion can not pay attention to the link
To improve the anti-corrosion capacity of the chimney, one is to provide the surface of the chimney anti-corrosion ability, two is to reduce the amount of corrosion of flue gas emissions. By improving the combustion technology and emission technology, we can reduce the content of corrosive substances in emissions.
Properties of flue gas medium
The corrosive properties of acid and alkali media, first of all, depend on their strength. Strong acid (such as sulfuric acid, nitric acid, hydrochloric acid), alkali (e.g., sodium hydroxide) have greater corrosion of building materials. The destructive oxygen acid of organic materials: maximum corrosion of concentrated sulfuric acid and nitric acid on wood and asphalt. In a short period of time will lose material strength. The same intensity of oxygen acid and deoxygenated rot turbidity of inorganic materials roughly equal. No Corrosive hydrofluoric acid on many organic and inorganic materials, but on silica and silica containing component materials (such as glass, ceramics etc.) is highly corrosive. Moderate phosphoric acid and weak acid have little or no corrosion to organic materials, such as phosphoric acid.
In the alkaline medium. The caustic corrosive. Alkaline carbonate (sodium carbonate) times. The turbidity of ammonia aqueous solution is relatively small, because it has low degree of dissociation in aqueous solution, and the volatility is large. There are two chemical and physical aspects of the corrosion of salt solutions. Under the condition of dry wet alternation and temperature change, most of the salt solution will appear the crystal expansion, so it has the physical damage to the concrete, brick masonry, wood and other materials. The sodium sulfate, potassium, ammonium, magnesium, copper, iron and so are the most toxic to the concrete and clay brick. Chlorine salt of steel and reinforced concrete, reinforced greatly corrosion. But compared with the corrosion of concrete.
To do a good job of chimney anti-corrosion work, one from the source control, from the chimney wall and improve the corrosion resistance of the chimney wall, the two links do, is the best chimney anti-corrosion construction works. Chimney anti-corrosion can not pay attention to the link