Wet desulfurization device for micro-pressure flue gas and seawater or reclaimed water desulfurization device

Abstract

The invention discloses a wet desulfurization device for micro-pressure flue gas and a seawater or middle water desulfurization device. In the wet desulfurization device of micro-pressure flue gas, the water pump pumps the filtered lime water in the sump to the desulfurization pool. The flue gas passes through the main smoke pipe and the organosilicon rubber smoke pipe, and comes out from the hard plastic pipe under the blended cotton cloth on the desulfurization pool, and reacts SO2+Ca(OH)2=CaSO3+H2O. The nitrogen in the flue gas slowly passes through the wet blended cotton cloth on the desulfurization pool, and then is discharged from the chimney above the desulfurization pool. The desulfurized sewage passes through the baffle to reach the aeration tank. The wind from the blower passes through the sponge laid on the aeration tank through the main air pipe and the rubber air pipe, and blows out from the hard plastic pipe. Calcium sulfate is generated in the aeration tank, and then flows to the sedimentation tank to settle down. The lime water overflowing from the sedimentation tank flows into the sump and is pumped out for recycling. In the seawater or reclaimed water desulfurization device, the flue gas first enters under the blended cotton cloth of the absorption tank, and then is treated by the desulfurization tank, aeration tank and sedimentation tank.

Description

Technical field: [0001] The invention relates to a wet desulfurization device for micro-pressure flue gas and a seawater or middle water desulfurization device. Background technique: [0002] The water pump of the existing wet desulfurization device draws lime water from the sump, and then sprays atomized water from the Venturi nozzle of the desulfurization tower, and the atomized lime water reacts with sulfur dioxide in the flue gas in the desulfurization tower to generate calcium sulfite. After the water pump of the existing seawater desulfurization device pressurizes the seawater, atomized water is also sprayed from the Venturi nozzle of the desulfurization tower, and the sulfur dioxide in the flue gas in the desulfurization tower dissolves in the atomized seawater, and then falls into the seawater pool; The sulfur dioxide dissolved in the seawater reacts chemically with the lime water in the seawater pool to form calcium sulfite. The seawater containing calcium sulfite f...

AI Technical Summary

Problems solved by technology

However, the pressure of the flue gas from the boiler of the power plant is very low, and it cannot be desulfurized by this method

In addition, the flue gas after desulfurization has to go through the mist eliminator to remove the water mist and the dust collector to remove the dust. In short, the process is complicated and the operation cost is high.

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