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This paper presents the design of a novel atomized corona discharge coupled screen electrode dust collector, which integrates electrostatic capture and wet electrostatic dust removal technologies. The upper part of the dust collector features an atomized corona discharge electrode utilizing a threaded-wire hole design with uniform water distribution. This design effectively addresses the issue of electrode fatness that may arise from uneven distribution of the discharge electrode. In contrast, the lower part of the collector is equipped with four side-by-side silk screen electrodes, which serve to expand the dust collection area, facilitate secondary particle capture, and consequently enhance dust removal efficiency. The study delves into a detailed analysis of the impact of various parameters on discharge characteristics and dust removal efficiency, culminating in the identification of optimal parameters. • A dust removal device combining an atomized corona discharge device and an electrostatic capture device was designed, in which a threaded wire hole electrode was designed to effectively expand the corona discharge area. • The experimental results show that the addition of atomized water does not affect the charging of the particles, and a better discharge and dust removal effect can be obtained at a smaller flow rate (10 mL/min). • The effects of electrode spacing, flow rate and other factors on the dust removal efficiency were investigated, and the optimal dust removal efficiency was 91.56% when the atomized corona discharge device was coupled with metal mesh electrodes, which was significantly improved by 4.42%. [ABSTRACT FROM AUTHOR]

Corona discharge low-temperature plasma technology has good performance in treating dust and removing gaseous pollutants. In this paper, the dust and SO 2 in the flue gas are removed by using the ground electrode atomization negative corona discharge device under the action of a magnetic field, and the discharge characteristics of the device, the removal efficiency of dust and sulfur dioxide, and its influencing factors are studied. The results show that the discharge characteristics and dust removal and desulfurization efficiency of the ground electrode atomization negative corona discharge under the action of a magnetic field are superior to the traditional l corona discharge and are almost affected by the extension of the operating time. Finally, the ground electrode atomization negative corona discharge under the action of a magnetic field is analyzed. The dust removal and desulfurization mechanism of corona discharge provide a reference for the development of dust removal and integrated desulfurization equipment. • When the atomization flow rate increases to 20 ml/min, the ozone concentration is the highest. • At a working voltage of 14 kV, an air speed of 1 m/s, and a flow rate of 25 ml/min, the dust removal efficiency is 92.7%. • Both atomization and magnetic field enhance the oxidation of SO 2 by corona discharge, promoting the removal of SO 2. [ABSTRACT FROM AUTHOR]