| Abstract [eng] |
The invention is considered to be a part of the technology of pre-treatment devices, in which gas contaminated with fine and ultrafine particulate matter is subjected to an adapted electric field, causing the particles to agglomerate – that is, to form coarser formations - with part of them being deposited. The objective is achieved by the use of a bipolar electric cold plasma field unit in the primary zone of the dual-zone working chamber, a multilayer plate modular cartridge consisting of electrically connected modules (8) of identical structure with symmetrically configured rectangular interlayers. Each module is symmetrically shielded on both sides, and the designed internal (10) and external (14) air gaps allow for the parallel movement of the contaminated gas flow. The core of the module is equipped with a metallic conductor (copper-aluminium alloy) foil electrode (12), insulated on both sides by symmetrical inner (11) and outer (13) protective glass insulator plates (11), which act as electrical capacitors. From the single-phase mains (20), the electric current is fed by a primary circuit (21) to a current rectifier (16), a pulse generator (17), and an autotransformer (18), and by a secondary circuit (28) to a high-voltage transformer (19), which then delivers the smoothed DC, bipolar pulsed, and stepped-up voltage to the electrodes of the electrical conductor foil (12). |
