Particle Agglomeration in Bipolar Barb Agglomerator Under AC Electric Field

The development of an efficient technology for removing fine particles in flue gas is essential as the haze is becoming more and more serious. To improve agglomeration effectiveness of fine particles, a dual zone electric agglomeration device consisting of a charging chamber and an agglomeration chamber with bipolar barb electrodes was developed. The bipolar barb electric agglomerator with a polar distance of 200 mm demonstrates good agglomeration effectiveness for particles with a size less than 8.0 µm under applied AC electric field. An optimal condition for achieving better agglomeration effectiveness was found to be as follows: flue gas flow velocity of 3.00 m/s, particle concentration of 2.00 g/m³, output voltage of 35 kV and length of the barb of 16 mm. In addition, 4.0-6.0 µm particles have the best effectiveness with the variation of particle volume occupancy of −3.2.