Cyclonic spray scrubber

As the gas swirls around the chamber, pollutants are removed when they impact on liquid droplets, are thrown to the walls, and washed back down and out.

The liquid droplets produced capture the pollutants, are eventually thrown to the side walls, and carried out of the collector.

The cyclonic spray scrubber (Figure 2) forces the inlet gas up through the chamber from a bottom tangential entry.

Liquid sprayed from nozzles on a center post (manifold) is directed toward the chamber walls and through the swirling gas.

This type of technology is a part of the group of air pollution controls collectively referred to as wet scrubbers.

This higher particulate-to-liquid relative velocity increases particulate collection efficiency for this device over that of the spray chamber.

The pressure drops across cyclonic scrubbers are usually 4 to 25 cm (1.5 to 10 in) of water; therefore, they are low- to medium-energy devices and are most often used to control large-sized particulates.