An integrated seawater wet desulfurization scrubber for ships

Abstract

The invention discloses an integrated seawater wet hair desulfurization washing tower for ships, which includes a tower body, an air intake mechanism, a washing mechanism and a discharge mechanism. A liquid inlet pipe is arranged on the outer surface of one side of the tower body. The side of one side of the liquid inlet pipe is provided with several liquid guiding pipes, and the air inlet mechanism is arranged on the tower body, and the air inlet mechanism is composed of a first mounting plate, an air compressor, an air guide pipe, a mixing box, a spiral Composed of pipes, intake pipes and connecting pipes. The invention has a simple structure, and the waste gas can be uniformly and fully mixed with the imported oxygen to ensure that all CaSO3 is oxidized to CaSO4 (gypsum) and improve the subsequent washing effect. In full contact with the slurry, the desulfurization efficiency and the utilization rate of the slurry absorbent are higher, avoiding the generation of more wastewater and increasing the subsequent treatment costs, and at the same time, with the rotation during the mixing and stirring process, the precipitate of CaSO4 crystallization can be scraped out to prevent damage to the device Internal blockage.

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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