EXPERIMENTAL COLMATATION INVESTIGATION OF FINELY-DISPERSED GAS-FLOW PARTICLES IN HIGHLY-POROUS MATERIALS UNDER INFLUENCE OF ELECTRIC FIELD

Abstract

The paper reveals that the highest colmatation efficiency of charged and neutral particles is achieved in a polarizing electrostatic filter with a dielectric filter material which is placed in an electric field of high intensity created by surrounding metal electrodes.  Due to polarization of dielectric jumpers (dipole formation) strong electric charges are initiated on their surface and in consequence of these charges forces of Coulombic and induction particle settling are dominating there. These forces are considered as the most efficient mechanisms for settling of dielectric and electrically-conductive finely-dispersed particles.