Desulfurizing tower for wet fuel gas desulfurizing system

Abstract

The invention discloses a desulfurization tower used for a wet flue gas desulfurization system which includes a tower body (1); the bottom part of the tower body (1) is provided with a slurry pool (2); a first spraying layer (3) and a second spraying layer (4) are arranged above the serum pool (2) and spaced from up to down; a waste gas inlet (5) is arranged on the wall of the tower body (1) between the slurry pool (2) and the first spraying layer (3); a defogger (6) is arranged above the second spraying layer (4); the top part of the tower body (1) is provided with a waste gas outlet (7); a supporting plate (8) is arranged between the first spraying layer (3) and the second spraying layer (4); the surface of the supporting plate (8) is provided with a through hole; a plurality of hollow balls (9) are arranged on the supporting plate (8); a limit plate (10) is arranged below the second spraying layer (4) and a through hole is arranged on the limit plate (10). The desulfurization tower not only has high desulfurization efficiency, but also can be suitable for the desulfurization of the high flue gas generated by the techniques of making steel and making iron, etc.

Description

technical field [0001] The invention relates to a desulfurization tower for a wet flue gas desulfurization system, belonging to the technical field of flue gas desulfurization. Background technique [0002] At present, the desulfurization towers used in the wet flue gas desulfurization system mainly include spray towers, grid towers, and bubble towers. Among them, the spray tower is the most used one. The absorption principle is that the absorbent slurry is sprayed in the absorption tower. Atomization, spraying from top to bottom and mixing with flue gas from the bottom of the tower to absorb SO in the flue gas 2 , its main disadvantage is that it is difficult to fully mix the flue gas and the absorbent slurry, which belongs to the gas-liquid two-phase contact, resulting in low desulfurization efficiency; at the same time, the flow rate of the spray tower is low and the equipment is large, so it occupies a large area. Contents of the invention [0003] The technical probl...

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Problems solved by technology

[0002] At present, the desulfurization towers used in the wet flue gas desulfurization system mainly include spray towers, grid towers, and bubble towers. Among them, the spray tower is the most used one. The absorption principle is that the absorbent slurry is sprayed in the absorption tower. Atomization, spraying from top to bottom and mixing with flue gas from the bottom of the tower to absorb SO in the flue gas 2 , its main disadvantage is that it is difficult to fully mix the flue gas and the absorbent slurry, which belongs to the gas-liquid two-phase contact, resulting in low desulfurization efficiency; at the same time, the flow rate of the spray tower is low and the equipment is large, so it occupies a large area

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