Flue gas desulfurization tower with gas diversion and fluid column rushing flush
A desulfurization tower and flue gas technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of high operating costs, low mass transfer efficiency, large liquid and gas, etc., and achieve full utilization and reduce equipment fixation. The effect of investment and operating costs
Inactive Publication Date: 2006-08-30
CHINA PETROLEUM & CHEM CORP +1
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[0004] The purpose of the present invention is to provide a flue gas desulfurization tower with gas diversion and liquid column turbulence for large-scale thermal power plants, so that it can effectively overcome the relatively low mass transfer efficiency in the prior art due to the large diameter of the tower. Relatively large liquid and gas, high operating costs and other defects
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[0010] The invention relates to a tower structure which utilizes grid packing (patent No. ZL93213845.4) to carry out uniform distribution and diversion of gas and utilizes turbulent collision of absorption liquid to enhance mass transfer. In the present invention, the honeycomb grid filler 7 is used in the flue gas inlet area 8 to guide and evenly distribute the gas. The grid uses high-pressure polyethylene and other high-molecular materials, which are corrosion-resistant and not easy to scale; The grid of the grid is larger (the size of the grid space is 30cm ~ 70cm), so that the pressure drop when the gas passes through the grid is small. Compared with the empty tower, the grid increases the gas-liquid contact area at the same time. Nozzles 11 are arranged in double layers, and the angle α formed by two adjacent nozzles in the same layer is from 30° to 80°, so that the two streams sprayed upwards collide and disperse into smaller droplets to increase the mass transfer surface...
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The invention relates to a kind of stack-gases desulfurizing tower that contains gas diversion and turbulence in the form of liquid column. It involves in an apparatus of stack gases desulfurizing tower, which utilizes the gas diversion and the technique of liquid column turbulence to intensifying mass transfer. The technical features of the invention are as follows: in the inlet of stack gases, there is a favose grating packing for the diversion and uniform distribution of gas; the nozzle in the recycled shower nozzle adopts a two-layer structure, and the two nearly nozzle in the same layer form alpha angle of 30-80. In the result of a distributed apparatus and a special nozzle in the system, it can improve the efficiency of mass transfer in the same tower-track by 20%-30%, can increase the handling capacity by 15%-20%, and can also decline the ratio of liquid-gas flow rate by 20%-30%, which compared with the ordinary liquid column tower. Moreover, the pressure drop is only increased 300Pa, so that it greatly declines the capital expenditure of equipment and the cost of operation, and then makes full use of desulfurization agent, and especially suits to stack-gases desulfurizing tower with diameter more than 10m.
Description
technical field [0001] The invention relates to a flue gas desulfurization tower equipment which utilizes a gas diversion device and liquid column turbulence technology to enhance mass transfer, in particular to the flue gas desulfurization and environmental protection technology of coal-fired boilers in large power plants; it is especially suitable for tower diameters larger than The 10m flue gas desulfurization tower is mainly used for large thermal power plants. Background technique [0002] my country's SO in 2000 2 The total emissions are 20 million tons due to SO 2 The acid rain caused by the discharge has brought huge losses to my country's ecological environment and industrial and agricultural production. At present, the acid rain area in my country is close to 40% of the country's land area, so reducing SO 2 Emissions are imminent. SO emissions from coal-fired boilers in thermal power plants 2 occupy a large proportion. The flue gas desulfurization process of t...
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IPC IPC(8): B01D53/78
Inventor 王玉军吴国华朴香兰朱慎林
Owner CHINA PETROLEUM & CHEM CORP