Dual-chamber multi-absorption wet flue gas desulfurizing device

Abstract

The invention discloses a dual-chamber multi-absorption wet flue gas desulfurizing device, which mainly comprises a first atomization absorption chamber, a second atomization absorption chamber, a flue gas transition channel and a slurry pond, wherein a first atomizing spraying layer is formed inside the first atomization absorption chamber; a sprayed ultrafine desulfurizing agent is used for performing first fine desulfurization on SO2 in flue gas; a liquid gas absorbing surface is formed on a flue gas channel on the basis of communicating the flue gas, so that the sedimentation rate of impurities in the flue gas is increased; the bottom of the second atomization absorption chamber is provided with a diversion plate for improving the flowing state of the flue gas and reducing flowing dead zones; the middle part of the second atomization absorption chamber is provided with a second atomizing spraying layer which is used for performing secondary flue gas desulfurization and capturing fine fog drops in the flue gas; and a demister can be used for demisting final desulfurized flue gas and discharging the flue gas out of a desulfurizing tower through a flue gas outlet. Through multi-absorption, an efficient desulfurizing effect is reached. The device can be used for desulfurizing flue gas in the industries of thermal power generation, metallurgy industry, petrifaction and the like.

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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