ABSTRACT

Dust removal equipment can be classified into dry and wet collectors. They are classified into industrial dust collectors and air filters, depending on inlet dust concentration and the pressure drop. An air filter is one of the most reliable and efficient methods for dust collection, and particles are mainly used at a low dust concentration so that particles are captured inside the filter, and thus this type of particle collection is called a depth filter. The total annual cost to operate a dust collector is the lowest at an economical gas velocity, which usually differs from the gas velocity at its best performance. Hence, one has to have a criterion for the selection of dust collectors. The gravitational dust collector separates particles by the difference of gravitational settling velocity, which is suited for large particles. In most cases, it is used as a pre-dust collector. The cyclone is the most widely used centrifugal dust collector because of its simple structure.