Energy and energy conservation, energy conservation of materials, and energy-saving social development have become inevitable, and the two sides of society and enterprises are benefiting. At present, the topic of building a conservation-oriented society has been well known. It is imperative to develop more effective and environmentally friendly high-performance anti-corrosion coatings. With the maturity of anti-corrosion technology (Excavation 010-57182232)
Energy and energy conservation, energy conservation of materials, and energy-saving social development have become inevitable, and the two sides of society and enterprises are benefiting. At present, the topic of building a conservation-oriented society has been well known. It is imperative to develop more effective and environmentally friendly high-performance anti-corrosion coatings. With the maturity of anti-corrosion technology, anti-corrosion coatings will surely be further developed. According to statistics, the annual economic loss caused by corrosion in the world is about 700 billion US dollars, about six times the total economic loss caused by natural disasters such as earthquakes, floods and typhoons, accounting for 2% to 4% of the gross national product (GNP) of each country. %. Beijing Zhisheng Weihua Chemical Co., Ltd., located in Dongtieying, Fengtai District, has developed a series of ZS wear-resistant anti-corrosion coatings for the long-term tracking test of smelting waste gas. The temperature can reach 1800 °C, the coating is dense, the corrosion resistance is high, and the service life is high. Long features.
There are three main sources of waste gas in the steel industry: (1) A large amount of dusty waste gas is generated in the process of iron ore raw materials, fuel transportation, loading and unloading and processing. (2) A large amount of exhaust gas containing dust and harmful gases is generated during the re-production of various kiln furnaces in the steel plant. (3) Exhaust gas emitted from the chemical reaction of the production process, such as smelting, coking, and waste gas generated during the pickling process of steel.
The steel industry waste gas has the following characteristics:
(1) Exhaust gas emissions are large and the area is wide. Among the various sectors, the steel industry is a major emitter, and the emission of atmospheric pollutants such as sulfur dioxide accounts for about 11% of the total industry, second only to the power industry.
(2) The temperature of the exhaust gas discharged from the metallurgical kiln is high and the treatment is difficult. The temperature of the exhaust gas discharged from the kiln is generally 400 to 1000 ° C, and the maximum temperature is 1400 to 1600 ° C.
(3) The particle size of the soot is small and the adsorption force is strong. Most of the iron and steel smelting process is iron oxide soot, the particles are fine, the particle size is mostly less than 1 mm, the specific surface area is large, the adsorption force is strong, and the harmful gas is easily adsorbed.
(4) Flue gas emissions are strong and paroxysmal. In some processes such as blast furnace tapping, slag tapping, converter hot metal, oxygen smelting and tapping, the emission of flue gas is bursty and unorganized.
(5) The exhaust gas has a recovery value. For example, the flue gas can recover waste heat for power generation. The gas produced during coking, iron making and steel making can be used as the main fuel for iron and steel enterprises, and iron oxide dust can be recycled.
In view of the actual working conditions of the above-mentioned smelting waste gas, Zhisheng Weihua has developed ZS-based anti-corrosion coatings, which are highly targeted and have good corrosion resistance and corrosion resistance.
1. ZS-711 inorganic anti-corrosion coating: ZS-711 inorganic anti-corrosion coating The coating coating formed by inorganic polymer chelate film solution and highly activated anti-corrosion pigment can react with the surface material atom or ion of the object to form a physical physics. , chemical, electronic triple protection and protection, through the chemical bonds, ionic bonds and the surface of the substrate is firmly combined. It has a good protective matrix function for the physical anti-corrosion, chemical anti-corrosion and electronic anti-corrosion of the substrate.
2, high temperature anti-corrosion coating: ZS-811 high temperature anti-corrosion coating developed by Beijing Zhisheng Weihua Chemical Co., Ltd., using Zhisheng Weihua high temperature resistant solution, temperature resistance can reach 1800 °C, inorganic water-based coating, no organic matter, no pollution to the environment It is harmless to the human body, non-toxic and odorless, no flashing point, high hardness, abrasion resistance and impact resistance. The high-temperature anti-corrosion coating is densely coated, can resist acid and alkali corrosion at high temperature for a long time, resists nuclear radiation, is resistant to ultraviolet aging, and self-curing at room temperature. Its physical properties, chemical properties and performance have reached the international advanced level.
3, ceramic high-temperature anti-corrosion coating: ZS-822 composite ceramic high-temperature anti-corrosion coating, temperature can reach 1400 ° C, dense coating, strong inert, high hardness, can withstand strong corrosion under 20Kg pressure, high temperature oxidation resistance, high purity It has no volatilization, it can resist the long-term immersion of strong solvent and mixed solvent, can resist the oxidative corrosion of concentrated sulfuric acid and concentrated hydrochloric acid, can resist the corrosion of strong acid, resist the corrosion of high temperature chlorine gas, resist the corrosion of hydrogen gas, and resist the corrosion of high temperature seawater. It can withstand the waterproof and anti-corrosion at 1000 ° C high temperature, and this anti-corrosion coating has good wear and self-cleaning properties. This anti-corrosion coating can be called the strongest anti-corrosion coating in the world.
4, ZS-1041 flue gas anti-corrosion coating: ZS-1041 flue gas anti-corrosion coating uses Zhisheng Weihua's unique inorganic-organic high-temperature solution, high temperature resistance, temperature resistance can reach 800 ° C, wear resistance, acid and alkali corrosion resistance, line Good expansion coefficient, high adhesion, convenient construction and long service life.
5, ZS-1031 wear-resistant anti-corrosion coating: ZS-1031 anti-corrosion wear-resistant ceramic coating This coating can provide a protective coating with high wear resistance, impact resistance, high adhesion and toughness. It has composite functions such as anti-corrosion, wear resistance, impact resistance and good flexibility;
6, ZS-1033 hydrofluoric acid anticorrosive coating: ZS-1033 hydrofluoric acid anticorrosive coating Zhisheng Weihua unique patented technology, coatings selected phenolic resin, barite, nano-chromium powder, anti-media solid filler and other special materials finishing The coating is dense and stable, resistant to strong acid corrosion, especially resistant to hydrofluoric acid (HF) corrosion, and the coating can also prevent hydrogen ion penetration, and can protect metal and other materials from corrosion.
The iron and steel industry is a major polluter of the atmosphere, and the steel industry waste gas treatment must implement the principle of comprehensive management. Efforts to reduce energy consumption and raw material consumption are one of the fundamental ways to reduce exhaust emissions; reforming processes, adopting advanced processes and equipment, advanced anti-corrosion coatings, and strong corrosion resistance to reduce emissions from production processes; The treatment methods and equipment, strengthen the treatment and recycling of waste gas; vigorously carry out comprehensive utilization.
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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