Flue gas desulfurization system
A desulfurization system and flue gas technology, applied in the direction of dispersed particle separation, chemical instruments and methods, separation methods, etc., can solve the problems of increasing the circulation volume of desulfurization solution, low desulfurization rate, and high content of suspended impurities in desulfurization solution, so as to solve the problem of desulfurization The effect of system clogging and improving desulfurization efficiency
Active Publication Date: 2016-08-17
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Problems solved by technology
It solves a series of problems in the existing desulfurization system, such as high content of suspended impurities in the desulfurization solution, system blockage, and low desulfurization rate.
[0005] Although the applicant can solve the shortcomings of the traditional flue gas washing method to a certain extent, its actual production and use effect is still not good
For example, the concentration of sulfur dioxide in sintering flue gas is as high as 4000-7000mg / Nm 3 , if the sulfur dioxide concentration in the flue gas treated by the flue gas desulfurization system is to be less than 200mg / Nm 3 , it is necessary to increase the height of the packing in the absorption section and increase the circulation volume of the desulfurization solution, which increases the height of the tower and the operating cost of desulfurization
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[0023] Hereinafter, the flue gas desulfurization system according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments. In this specification, the sulfur-containing flue gas to be desulfurized (hereinafter referred to as flue gas) can be sintering flue gas, metallurgical flue gas, power plant boiler flue gas, etc. The sulfur oxides in the flue gas are mainly sulfur dioxide, sulfur trioxide , however, the sulfur-containing flue gas to be desulfurized is not limited thereto.
[0024] figure 1 It is a schematic structural diagram of a flue gas desulfurization system in an exemplary embodiment of the present invention. Combine below figure 1 Each component of the flue gas desulfurization system 100 according to an exemplary embodiment of the present invention and the flue gas desulfurization process realized by using the flue gas desulfurization system 100 are described in detail.
[0025] Such as figure 1 A...
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The invention provides a flue gas desulfurization system. The system comprises a flue gas desulfurization tower, which comprises a tower body and a tower body inner cavity enclosed by the tower body; wherein the flue gas desulfurization tower is divided into a washing section, an absorbing section, and a recycling section along the flue gas flowing direction; a desulfurization combination composed of a desulfuration section with a filler layer and a spraying desulfurization device is arranged in the absorbing section of the flue gas desulfurization tower, thus the desulfurization efficiency is improved, the problem that in the prior art the desulfurization efficiency can just be increased by increasing the height of the filler layer is solved, and the desulfurization efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of removing sulfur dioxide in flue gas, in particular to a flue gas desulfurization system. Background technique [0002] At present, flue gas desulfurization technology is widely used in petrochemical flue gas purification treatment. Here, petrochemical flue gas is relatively clean and does not require additional dust removal treatment. Different from the purification treatment of petrochemical flue gas, when removing high-temperature flue gas with a large amount of dust and a large amount of sulfur trioxide, chloride, fluoride, nitrogen oxides, etc., it is necessary to carry out the dust in the flue gas Remove the pretreatment, and at the same time scrub the sulfur trioxide, hydrogen chloride and other gases in the flue gas. [0003] The traditional flue gas washing method uses washing liquid to wash the flue gas, so as to achieve the purpose of dust collection, cooling, and washing of acidic gases such a...
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IPC IPC(8): B01D53/78B01D53/50
Inventor 邱正秋黎建明王建山张小龙伍兵杨文迪张亦凡
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP