Wet-method desulphurization device for micropressure flue gas and seawater or reclaimed water desulphurization device

A wet desulfurization and flue gas technology, which is applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of complicated procedures, high operating costs, and desulfurization.

Active Publication Date: 2015-03-04
张英华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 desulfurizatio

Method used

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  • Wet-method desulphurization device for micropressure flue gas and seawater or reclaimed water desulphurization device
  • Wet-method desulphurization device for micropressure flue gas and seawater or reclaimed water desulphurization device
  • Wet-method desulphurization device for micropressure flue gas and seawater or reclaimed water desulphurization device

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Embodiment Construction

[0015] figure 1 , figure 2 , image 3 As shown, the wet desulfurization device for micro-pressure flue gas of the present invention is mainly composed of a desulfurization tank 2, an aeration tank 3, a sedimentation tank 4, a water collection tank 5, a blower 10, a chimney 14 and a water pump 6. There is a filter screen in the sump 5, and the water pump 6 pumps the filtered lime water in the sump 5 to the desulfurization pool 2. The sulfur dioxide and nitrogen monoxide in the flue gas are dissolved in the water of the desulfurization tank 2, and the sulfur dioxide and the lime react chemically in the desulfurization tank 2 to generate calcium sulfite. The desulfurized sewage passes through the water retaining plate and reaches the aeration tank 3, and a large amount of lime is placed in the aeration tank 3. The calcium sulfite in the aeration tank 3 chemically reacts with the oxygen in the wind blown by the blower 10 to generate calcium sulfate, and the nitrogen monoxide r...

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Abstract

The invention discloses a wet-method desulphurization device for micropressure flue gas and a seawater or reclaimed water desulphurization device. In the wet-method desulphurization device for the micropressure flue gas, a water pump is used for pumping filtered lime water in a water collecting tank into a desulphurization water tank; the flue gas flows through a main flue pipe and an organic silicon rubber flue pipe and comes out from a hard plastic pipe below blended cotton cloth on the desulphurization water tank, and reaction that SO2+Ca(OH)2=CaSO3+H2O is generated; nitrogen in the flue gas slowly flows through the wet blended cotton cloth on the desulphurization water tank, and then is discharged from a chimney above the desulphurization water tank; sewage after desulfurization passes through a water baffle and reaches an aeration tank; air from an air blower passes through sponge laid on the aeration tank via a main air pipe and a rubber air pipe, and is blown out from the hard plastic pipe; calcium sulfate is generated in the aeration tank, and then flows into a sedimentation basin for settling; lime water overflowing from the sedimentation basin flows into the water collecting tank, and is pumped out by the water pump for recycling. In the seawater or reclaimed water desulphurization device, the flue gas firstly enters below the blended cotton cloth of an absorption water tank, and then flows through the desulfurization water tank, the aeration tank and the sedimentation basin for treatment.

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...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/60
Inventor 张英华
Owner 张英华
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