DC composite tower electrostatic dust collection integrated flue gas treatment system

Abstract

The invention discloses a DC composite tower electrostatic dust collection integrated flue gas treatment system including a DS multi-phase desulfurization tower and a CST turbogrid tower; the top end of the DS multi-phase desulfurization tower communicates with a boiler via a pipeline, and the lower end of the DS multi-phase desulfurization tower is arranged on a sedimentation tank and communicates with the sedimentation tank; the lower end of the CST turbogrid tower is arranged on the sedimentation tank and communicates with the sedimentation tank, and the top end of the CST turbogrid tower is connected with a wet electric dust collector via a pipeline; the wet electric dust collector is connected with a draught fan via a pipeline, and the draught fan communicates with a chimney via a pipeline; the lower part of the sedimentation tank is provided with a sewage port; the middle part of the sedimentation tank is connected into the upper part of the DS multi-phase desulfurization tower via a circulating pump; the pipeline between the draught fan and the chimney and the pipeline between the boiler and the DS multi-phase desulfurization tower communicate with each other via a circulating wind pipe. The problem of secondary pollution caused by discharge of aerosol particulate matters carried by wet desulfurization flue gas is solved; the system reduces the land occupation area when single towers are used in series, investment costs are saved, and the operation reliability of the system is enhanced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, and relates to a DC composite tower electrostatic dust removal integrated flue gas treatment system, in particular to an integrated desulfurization technology of a DS multiphase desulfurization tower and a CTS cross-flow tray. Background technique [0002] The main component of flue gas pollutants discharged by industry is SO 2 and dust, causing serious harm to the atmospheric environment and human beings. The integrated technology of flue gas desulfurization and dust removal can be integrated into the process engineering, combining the two operating units of desulfurization and dust removal, which has high efficiency and low investment. The promotion of integrated technology of dust removal and desulfurization will improve the living environment, increase economic benefits and regional benefits Air quality plays an important role. The desulfurization system is locate...

AI Technical Summary

Problems solved by technology

[0004] Both the DS multiphase desulfurization tower and the CST cross-flow plate tower in the prior art belong to wet desulfurization. Although they each have high desulfurization efficiency, their shortcomings are as follows: DS multiphase desulfurization tower, such as figure 1 As shown, although the desulfurization tower has a high desulfurization efficiency, it can be seen from the figure alone that the reaction liquid and the flue gas are not closed during the contact process, and there will be a small part of the gas that does not contact the reaction liquid and passes through the mist eliminator. After being discharged from the reaction tower, it affects the desulfurization efficiency of the desulfurization tower; CST through-flow plate tower, such as figure 2 As shown, due to the relatively small pores on the surface, all kinds of reaction solutions are limited, and SO 2 The reaction solution produced by the reaction cannot be used in the reaction tower, and it is easy to block the sieve holes, making the reaction tower unable to operate

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