In recent years, whether it is power plants, steel plants or cement The problem of flue gas emission pollution of the plant is gradually concerned and valued by people In order to meet the national environmental protection regulations and reduce the project cost, the wet desulfurization (FGD) process commonly used by major companies is not equipped with a flue gas heating system (GGH) FGD is installed without GGH, and the temperature of flue gas discharged into the chimney is about 50 ℃. Wet flue gas condenses in the chimney to form condensed acid, which greatly enhances the corrosivity of the chimney
Relevant data shows that in order to solve this problem, various manufacturers have successively adopted the following measures: adding steel inner cylinder with titanium plate for corrosion prevention, adding steel exhaust funnel in concrete chimney, using polyurea elastomer for corrosion prevention in steel chimney refractory bricks The methods such as spraying fire-resistant mortar and using light acid resistant castables for overall pouring have not been unanimously recognized by the industry.
In order to solve the anti-corrosion problem of wet chimney, it is necessary to find a kind of material that is acid resistant, corrosion resistant, temperature resistant, high temperature resistant and has good abrasion resistance and adhesion. Beijing Zhisheng Weihua Chemical Co., Ltd. independently produces pin The ZS-1041 smoke anti-corrosion paint sold provides us with a better choice. At least so far, this is the strength in solving smoke corrosion.
ZS-1041 smoke anticorrosive paint and traditional polyurea Foam glass Different from brick, glass flake, OM paint or mastic, it has high temperature resistance, light coating, long service life and good durability. Damaged coating can be easily repaired. In the process of preparation, coating and coating formation, the environment is pure.
1. The flue gas anti-corrosion paint coating has excellent chemical corrosion resistance, especially condensation sulfuric acid corrosion;
2. The flue gas anti-corrosive paint coating has very high resistance to water vapor penetration;
3. The flue gas anti-corrosive paint coating has good performance of high temperature resistance and temperature change resistance, which can meet the long-term operating temperature fluctuation between 45 ℃ and 600 ℃, the short-term operating temperature 800 ℃, and the protection action temperature 850 ℃;
4. The flue gas anti-corrosive paint coating also has high flexibility and thermal expansion resistance, which can resist the inevitable vibration of the steel chimney in operation although it has been reinforced;
5. The smoke anti-corrosion paint has a very good adhesion with the steel substrate;
6. The eye-catching thing is that ZS-1041 can be welded after painting, which greatly improves the safety, and at the same time, it can be found that the construction cost is significantly reduced.
