ABSTRACT

Various types of dust removal equipment are used to recover valuable materials or as emissions control equipment for air pollution. They adopt various mechanisms to remove particles, depending on particle and gas conditions. Dust removal equipment can be classified into dry and wet collectors. They are also classified into industrial dust collectors and air filters, depending on inlet dust concentration and the pressure drop. Industrial collectors are usually two or three orders of magnitude higher than those of air filters. When they are classified according to gas flow and dust collection mechanism, every dust collector belongs to one of the following categories, shown in Figure 12.1.