On the test stand of a combined dust collector being composed of electrostatic precipitator and bag type filter

and having a flue gas disposal capacity of 50 000 m3/h

the influence of factors

such as static electric field

air velocity for filtering

and dust concentration etc.

upon the perfomance in operation of said combined dust collector has been studied.Results show that the static electric field can remove a large part of dust

greatly reducing the load of bag type filter

lengthening the period of dust cleaning

making the service-life of bag type filter to be lengthened;the air velocity for filtering and the dust cocentration are mainly affecting the resistance in operation of the said combined dust collector

basically having no influence upon the dust removal efficiency.