Device for desulfurization and dedusting of smoke of ship through seawater

Abstract

The invention belongs to the technical field of seawater desulfurization and in particular discloses a device for desulfurization and dedusting of smoke of a ship through seawater. The device comprises an outer casing, a gas inlet pipe, an exhaust pipe, a water inlet pipe and a drainage pipe, wherein both the gas inlet pipe and the exhaust pipe are inserted into the top end of the outer casing; the water inlet pipe is inserted into the upper side of the left side wall of the outer casing; and the drainage pipe is connected with the bottom of the outer casing. Seawater is added into the outer casing through the water inlet pipe, the seawater is discharged out from the drainage pipe, through the function of sufficient contact of the seawater with a flue gas, impurities in the flue gas can beadsorbed, meanwhile, a desulfurization function is taken into play, sufficient contact is achieved, and the desulfurization effect is good; through a floating dust filtering mechanism, impurities andfoams generated by the flue gas desulfurization can be filtered and are prevented from floating up, and thus a primary filtering effect is achieved; and when the seawater is discharged through an overflow pipe or the drainage pipe, impurities in the seawater can be filtered through a discharge filter device.

Description

technical field [0001] The invention relates to the technical field of seawater desulfurization, in particular to a device for desulfurizing and dust-removing ship exhaust smoke by using seawater. Background technique [0002] Seawater flue gas desulfurization is to use the natural alkalinity of seawater to absorb SO in flue gas 2 A desulfurization process. Because the rainwater brings the alkaline substances (carbonates) of the rock formations on the land into the sea, the natural seawater is usually alkaline, with a pH value generally greater than 7, and its main components are chlorides, sulfates and a part of soluble carbonates. Carbonate (HCO 3 - ), the natural alkalinity is about 1.2-2.5mmol / L, which makes seawater have natural acid-base buffering capacity and absorbs SO 2 Ability. A basic theoretical basis for seawater desulfurization is that most of the sulfur in nature exists in the ocean, sulfate is one of the main components of seawater, and most of the sulfu...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a device for desulfurizing and dust-removing ship exhaust by using seawater to solve the problem that existing desulfurization equipment is difficult to completely desulfurize tail gas when desulfurizing ship tail gas proposed in the above background technology, and for exhaust gas It is difficult to filter the smoke and dust, and it is necessary to filter the seawater after desulfurization, which increases the problem of the operation process

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