A quenched absorption tower

Abstract

The invention relates to a quenching type absorption tower which comprises a steel shell and a graphite lining. The quenching type absorption tower is characterized by comprising a gas inlet pipe, a spraying layer, an absorption layer, a cooling layer and a discharge layer, and the spraying layer, the absorption layer, the cooling layer and the discharge layer are sequentially arranged from top to bottom; the aim of rapidly cooling high-temperature smoke is achieved by conducting pre-cooling and rapid cooling on high-temperature smoke in the absorption tower through a pre-cooling system and the cooling layer; a dual-layer distribution mode is adopted for liquid distributors a so that liquid can be slowly distributed on a first distribution layer, and if a large amount of liquid needs to be distributed, liquid can overflow through an overflow hole to a second distribution layer to be evenly distributed, so liquid can evenly flow out of the distributor after passing through the distributor, smoke and sprayed liquid can conveniently make full contact, and substances in smoke can be better absorbed.

Description

technical field [0001] The invention relates to the field of graphite device production, in particular to a quenching absorption tower. Background technique [0002] The absorption tower is the equipment that realizes the absorption operation. According to the gas-liquid phase contact form, it is divided into three categories. The first category is the plate tower, bubbling absorption tower, and stirred bubbling absorption tower in which the gas is dispersed in the liquid phase in the form of bubbles; the second category is that the liquid is dispersed in the form of droplets. Ejectors, Venturi tubes, and spray towers in the gas phase; the third category is packed absorption towers and falling film absorption towers in which the liquid contacts the gas phase in a film-like motion. The gas-liquid two-phase flow mode in the tower can be counter-current or co-current. Usually, countercurrent operation is adopted, and the absorbent is added from the top of the tower to flow fr...

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Problems solved by technology

[0003] Generally, when absorbing high-temperature flue gas, it is necessary to correct the cooling effect of the absorption tower. The temperature of the absorbed gas is still high when it is discharged, and the contact time between the liquid and the flue gas is short, and the liquid distribution is uneven. The absorption tower is not fully absorbed when absorbing high-temperature waste gas

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