A simple tower gas-liquid mass transfer equipment. The spray tower is a hollow cylinder, and the top of the spray tower is equipped with a liquid sprayer, so that the liquid is dispersed into fine droplets to fall, and the gas and the droplets are in countercurrent contact for mass transfer.
The advantages of the equipment are simple structure, low cost and small gas pressure drop, but the disadvantages are high power consumption of liquid spraying, more gas mist entrainment at the outlet and serious gas backmixing in the equipment. It is mainly used for the absorption of soluble gas, and can also be used for gas washing.
Extended data:
The advantages of spray tower are simple structure, low cost, small gas pressure drop and no blockage. It is widely used in wet desulfurization system at present. Its main feature is complete openness. There are no other internal facilities except the nozzle. The nozzle is the main accessory of the spray tower, and it is required that the nozzle can provide fine and uniform droplets to make the spray tower run effectively.
In parallel flow spray tower, liquid and dusty gas flow in the same direction, usually dripping from the top, which is beneficial to the separation of liquid droplets from the airflow. The disadvantage is that the inertial collision effect is poor, and it is mainly used to cool and humidify gas.
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