The use of FRP desulfurization tower can effectively improve the air quality around us
，玻璃钢脱硫塔烟气腐蚀区、温烟气腐蚀区、进口烟道干湿界面腐蚀区、吸收塔内腐蚀区和净烟气腐蚀区。 The use of glass fiber reinforced plastic desulfurization tower can effectively improve the air quality around us . The glass fiber reinforced plastic desulfurization tower has a flue gas corrosion zone, a warm flue gas corrosion zone, a wet and dry interface corrosion zone of the inlet flue, a corrosion zone inside the absorption tower, and a net flue gas corrosion zone. The temperature of the flue gas emitted by the boiler is generally around 180 ° C and the relative humidity is 3%. It contains ash and various corrosive components such as SO2, HCl, NO2, and salt mist. Some flue gas contains strong hydrofluoric acid. Corrosive gas is present. 又具有酸碱价质替换的特性，因而设备腐蚀严峻，防腐条件要求比较严苛。 And in the process of FRP desulfurization, it also has the characteristics of acid and alkali valence replacement, so the equipment is severely corroded and the requirements for anticorrosive conditions are more stringent.
In recent years, in the research and development of desulfurization tower equipment and chimney flue corrosion coatings, Zhisheng Weihua anticorrosive developers have learned the experience and experience of flue gas chimney corrosion in the past, and based on the situation of hundreds of flue gas flues, try their best to be bold Innovation, selection of new technology, combined with high technology, ZS-1041 Zhisheng Weihua Flue Gas Anticorrosive Coating developed by Beijing Zhisheng Weihua Company has been successfully applied. The coating has amazing resistance to high temperature flue gas and chimney stack condensation. Water corrosion effect, high temperature resistance, high hardness and wear resistance, acid and alkali resistance, good expansion coefficient, can be used for more than 10 years. Acidic corrosive gases such as sulfur dioxide, sulfur trioxide, hydrogen fluoride, and hydrogen chloride in flue gas chimney pipes will not condense into acid liquid to corrode the chimney, and the practical life of desulfurization towers and chimneys is much longer than thirty years.
Desulfurization tower has the following characteristics and advantages:
1. The ability of the equipment to be accustomed to the load is large: it can perform useful operations within a wide range of load changes, and then ensure that the equipment can adhere to a higher operating power under different operating conditions.
2. High working power: when it is used for flue gas desulfurization, it can reach more than 95%; when it is used for dust removal from flue gas or other gases, it can reach more than 99.5%. This can greatly reduce the sewage charges of enterprises.
3, used to a variety of desulfurizers, without affecting its desulfurization power: ammonia, lime, limestone can be used as desulfurizers. In particular, industrial waste liquid waste residues, such as calcium carbide residue, waste lye, and other different desulfurizing agents can be used, which is a useful way to deal with the pollution problems of some enterprises.
4. The special structure of the equipment: make the gas and liquid fully touch the mass transfer response and then can be usefully separated, so that the flue gas after the response has fewer droplets, and then it is beneficial to improve the operating conditions of the fan and the tail flue. Anti-corrosion.
5. Good anti-scaling performance: Because there is no structure such as a nozzle and the specially planned process flow, the equipment is not easy to block and avoids scaling.
6, the system resistance is low, generally less than 1000Pa: then to ensure that under high loads save power consumption, with significant advantages of low operating costs.
7, equipment structure is simple, easy to manufacture and equipment: because can choose non-metallic materials, etc., the desulfurization tower has good corrosion resistance and long service life. Generally, the steel desulfurization tower is anticorrosive every year, and the cost of anticorrosion is high. Even so, the life span of steel towers is far less than that of non-metal towers such as hemp and glass steel.
8. The purity of the desulfurization by-product ammonium sulfate (or gypsum) is high, which is convenient for comprehensive use: it can achieve certain economic benefits instead of simply paying the discharge cost.
9. The system covers a small area and is easy to handle and protect together.
The use of FRP desulfurization towers can improve the air quality around us:
Air pollution is getting worse. Sulfur dioxide has severely affected the quality of the air. The air we can't live without is now affected by smog. After passing through the glass fiber reinforced plastic desulfurization tower, the sulfur dioxide in the air can be effectively replaced.
The rubber fabric of FRP desulfurization tower has outstanding abrasion resistance, elasticity, impermeability and stress corrosion resistance. However, in the hot environment, due to aging and hardening, the elasticity, wear resistance and stress corrosion resistance are reduced. FRP glass fiber reinforced plastic, also known as glass fiber reinforced plastic (FRP), is a composite material made of glass fiber or its products as a reinforcing material and participating in heat-resistant and corrosion-resistant synthetic resins such as epoxy resin and vinyl ester resin. Compared with metal materials or other inorganic materials, it has good heat resistance, permeability resistance and stress corrosion resistance.
The glass fiber reinforced plastic desulfurization tower is mainly used for the treatment of the exhaust gas of the acid gas exhaust system such as sulfuric acid, nitric acid and hydrochloric acid, which can effectively prevent the air pollution caused by the exhaust gas. The glass fiber reinforced plastic desulfurization tower is a type of dust remover that makes the dust-containing gas and water have a sufficient bathing effect. It is mainly composed of a main body, an intake pipe, an exhaust pipe, a nozzle, a water source and a water bath circulation system. It is a kind of dust removal equipment that makes the water content in a specific container add, change the direction of air flow, lower the speed of air flow, make it mix with the dust-containing gas, make the specific gravity of dust add and adhere, and remove water and dust from the air.
设备工流程:首要，热烟气进入预洗刷塔，与饱满硫酸铵溶液触摸，烟气在此进程中被冷却，一起，因为饱满硫酸铵溶液中水的蒸腾而分出硫酸铵晶体。 FRP desulfurization tower equipment process: First, the hot flue gas enters the pre-washing tower and touches the full ammonium sulfate solution. The flue gas is cooled in this process. Together, the ammonium sulfate crystals are separated because of the water transpiration in the full ammonium sulfate solution. . The cooled flue gas passes through the demister and enters the SO2 absorption tower. In the absorption tower, ammonia is mixed with water to form an ammonia solution. The SO2 in the flue gas is absorbed here and reacts with ammonia to form ammonium sulfate. Finally, the flue gas after desulfurization is discharged into the atmosphere through a 120-meter-high chimney. The ammonium sulfate solution is sent to the pre-washing tower for recycling. The ammonium sulfate slurry in the pre-washing tower enters the dehydration system. First dehydration by a hydrocyclone, and then a centrifuge to obtain an ammonium sulfate filter cake. The supernatant recovered from the cyclone and centrifuge is returned to the pre-washer and recycled. The ammonium sulfate filter cake is sent to the granulation system to obtain high-use granular ammonium sulfate fertilizer. Before being transported by train or truck, it is stored in a dome storage tank that can hold 50,000 tons of ammonium sulfate.
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