ABSTRACT
Mechanically aided scrubbers are defined as devices that use a moving mechanism in the gas stream to achieve the desired particulate or contaminant gas removal.
Mechanically aided scrubbers are generally used for dust control involving particulate larger than approximately 10 μm diameter and at low loadings (below 5 grains per dry standard cubic foot). They have been used to control dusts from loading and unloading facilities, fugitive dusts from storage facilities, wet coating operations, and numerous other applications. They were particularly popular in the 1970s in the mining industry for dust control where a wet product was required and are still used for that purpose. They are noted for their low cost, compact size, and reliability. Ever-tightening codes have shifted the focus to low-to medium-energy Venturi scrubbers on many applications that had been dominated by mechanically aided designs.
