Dust collectors are devices used to separate dust from flue gas, also known as dust removal equipment. The performance of dust collectors is expressed by the gas volume they can handle, the pressure drop when gas passes through the collector, and the dust removal efficiency. Additionally, the price, operating and maintenance costs, lifespan, and ease of operation and management are also significant factors in evaluating their performance. Dust collectors are commonly used facilities in boilers and industrial production.

Dust collectors are set up at all dusty locations, and the dust-laden gas is transported through a pipeline to the dust removal unit via gas lines. After gas-solid separation within the unit, the dust is collected inside, while the clean gas is introduced into the main pipeline or directly released into the atmosphere. This entire setup constitutes the dust removal system, with the dust collector being a crucial component. From the perspective of ventilation and dust removal, dust refers to all solid particles that can remain suspended in the air for a relatively long time. It forms a dispersion system known as an aerosol, where air acts as the dispersion medium and solid particles as the dispersed phase. Dust collectors are the equipment used to separate these solid particles from the aerosol.