Dual-chamber multi-absorption wet flue gas desulfurizing device

Abstract

Disclosed is a dual-chamber multi-absorption wet flue gas desulfurization device, which mainly comprises a first atomization absorption chamber (4), a second atomization absorption chamber (14), a flue gas transition channel (3) and a slurry pool (8). The interior of the first atomization absorption chamber (4) is provided with a first atomization spraying layer (2); through which ultrafine desulfurizing agent is sprayed to finely remove SO2 from the flue gas for the first time. The flue gas transition channel (3) increases the liquid gas absorbing surface on the basis of communicating the flue gas; consequently the sedimentation rate of impurities in the flue gas is intensified. The bottom of the second atomization absorption chamber (14) is provided with a guide plate (9) for improving the flowing state of the flue gas and reducing flowing dead zones; the middle part of the second atomization absorption chamber (14) is provided with a second atomization spraying layer (11), which is used for performing the second flue gas desulfurization on the one hand and capturing fine fog drops in the flue gas on the other hand. A demister (12) can be used for demisting the final desulfurized flue gas which is discharged from the desulfurizing tower through a flue gas outlet (13).

Description

technical field [0001] The invention relates to the field of large-scale flue gas desulfurization, in particular to a double-chamber multi-absorption wet flue gas desulfurization device. Background technique [0002] SO2 pollution is the main problem of air pollution in our country and an important environmental factor that restricts the coordinated and stable development of our economy. The main source of SO2 in the atmosphere in my country is coal combustion, and its emission accounts for more than 90% of the total emission, which causes the area of ​​acid rain in our country to continue to expand. So far, researchers from various countries have researched and developed many SO2 control technologies, among which lime / limestone-gypsum wet flue gas desulfurization technology is the most mature technology at present. This method has many achievements, stable operation and high desulfurization efficiency, and has been widely accepted and applied by various industries. Howeve...

AI Technical Summary

Problems solved by technology

Since the atomized particle size of the desulfurization agent is generally 1000 μm-3000 μm when mechanical atomization is used, multiple spray layers and nozzles must be arranged, and the desulfurization agent is sprayed repeatedly through the slurry circulation pump, resulting in high energy consumption for desulfurization

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