Integrated marine seawater wet desulfurization washing tower

Abstract

The invention discloses an integrated marine seawater wet desulphurization washing tower which comprises a tower body, a gas inlet mechanism, a washing mechanism and a discharge mechanism, a liquid inlet pipe is arranged on the outer side surface of one side of the tower body, a plurality of liquid guide pipes are arranged on the side surface of one side of the liquid inlet pipe, the gas inlet mechanism is arranged on the tower body, the gas inlet mechanism is composed of a first mounting plate, an air compressor, an air guide pipe, a mixing box, a spiral pipe, an air inlet pipe and a connecting pipe. The tower is simple in structure, waste gas can be uniformly and fully mixed with introduced oxygen, CaSO3 is ensured to be oxidized into CaSO4 (gypsum), the subsequent washing effect is improved, during washing, slurry is subjected to quantitative multi-stage washing and is matched with mixing and stirring, so that mixed gas is fully contacted with the slurry, the desulfurization efficiency and the slurry absorbent utilization rate are higher, and subsequent treatment cost is prevented from being increased due to generation of more wastewater; meanwhile, through cooperation with rotation in the mixing and stirring process, precipitates separated out by CaSO4 crystallization can be scraped out, and blockage in the device is prevented.

Description

technical field [0001] The invention relates to the technical field of ship waste gas treatment equipment, in particular to an integrated seawater wet hair desulfurization scrubber for ships. Background technique [0002] When the diesel engine on the ship is working, it will produce a large amount of exhaust gas, and the exhaust gas will pollute the air if it is directly discharged, so it needs to be desulfurized through a scrubber. [0003] The deficiencies of existing technology: [0004] When the flue gas is desulfurized through the scrubber, the flue gas is directly introduced into limestone powder and water to make a slurry for desulfurization, and oxygen is introduced to improve the scrubbing effect. However, it is difficult to ensure the uniform mixing of oxygen and exhaust gas during the scrubbing process. Insufficient mixing of exhaust gas leads to incomplete washing. At the same time, spraying is usually used for washing. Although the exhaust gas can fully contac...

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Problems solved by technology

[0004] When the flue gas is desulfurized through the scrubber, the flue gas is directly introduced into limestone powder and water to make a slurry for desulfurization, and oxygen is introduced to improve the scrubbing effect. However, it is difficult to ensure the uniform mixing of oxygen and exhaust gas during the scrubbing process. Insufficient mixing of exhaust gas leads to incomplete washing. At the same time, spraying is usually used for washing. Although the exhaust gas can fully contact the washing slurry, the utilization rate of the slurry is low. At the same time, sulfur dioxide in the exhaust gas may remain, which increases the follow-up. The waste water output and the utilization rate of the slurry are reduced, and the calcium carbonate produced by washing is easy to crystallize and precipitate, forming dirt on the inner wall of the device and causing blockage

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