In order to find a method for ultra-low emission of fine particles in the flue gas of sintering machine head

two kinds of corona wires（circular linear electrode

barbed electrode） and collecting electrodes（traditional plate

perforated plate） were used to form a variety of electrodes configurations in the test. Moreover

we investigated the factors that affect the collecting effect of fine particles in sintering flue gas through analyzing the dust collection efficiency and particle size distribution of different electrodes configurations. The results reveal that the particle size distribution and flue field structure are the predominant factors of removal effect. The perforated collecting electrode changes the airflow distribution in the discharge space and achieves a high collection efficiency of fine particles（such as PM2.5 and PM10）. Among them

the dust collection efficiency of the configuration with barb-perforated plate is up to 99.00%

and the emission concentration of particulate matter of electrostatic precipitators for the sintering machine head can be lower than 5 mg/m3 in last grade

achieving an effectiveness of ultra-low emission.