The utility model relates to a large-scale desulfurization device for flue gas desulfurization of coal-fired power plants, which is called a glass fiber reinforced plastic desulfurization tower. In the desulfurization tower and desulphurization dust, using lye flue gas SO2, of SO2 in flue gas by chemical absorption. In order to strengthen the absorption process, improve the desulfurization efficiency, reduce equipment investment and operating costs, glass fiber reinforced plastic desulfurization tower should meet the following basic requirements:
(a) there is a large contact area between gas and liquid and a certain contact time;
(b) the gas-liquid interaction is strong, the absorption resistance is small, and the absorption efficiency of SO2 is high;
(c) the operation is stable, there must be appropriate operational flexibility;
(d) the pressure drop through the air flow is small;
The utility model has the advantages of simple structure, convenient manufacture and maintenance, low cost and long service life;
(f) no scaling, no blockage, abrasion resistance, corrosion resistance;
(g) low energy consumption, no two pollution. Glass fiber reinforced plastics desulfurization tower should meet the basic requirements?
SO2 absorption and purification process, the treatment of low concentration of SO2 flue gas, the amount of smoke is considerable, requiring continuous continuous efficient purification of flue gas. Thus, chemical reaction in SO2 for fast reaction, their membrane transformation coefficient is larger, reaction occurs in the film, so the gas phase as continuous phase, a high degree of turbulence, phase interface large absorption tower as a desulfurization tower and desulfurization dust remover is suitable. Usually, spray tower, packed tower, spray tower, plate tower, Venturi absorption tower can meet these requirements. The spray tower is one of the most widely used type of desulfurization tower, spray tower has the advantages of simple structure, mature technology and reliable, widely used in large power plant, control of small and medium scale low sulfur gas; for the treatment of high sulfur gas, the nonferrous metals industry in pneumatic emulsifying desulfurization tower, multi-layer spray tower etc.. Glass fiber reinforced plastics desulfurization tower should meet the basic requirements?