SET OF ELECTRODES FOR PLASMA-ARC TREATMENT OF TRANSIT HETEROGENEOUS FLOW Russian patent published in 2002 - IPC

FIELD: arc and plasma-arc engineering. SUBSTANCE: set of electrodes designed for use in plasma- arc fluidized-bed reactors including lighting up of advanced power boiler furnaces is, essentially, system of definitely arranged supports for mounting disperse electrodes building up vortex region in aerodynamic shadow of members of these supports; electrodes formed on upper surfaces of these supports are self-recovered due to immobilizing particles of originally conducting material or of disperse material acquiring electrical conductance under effect of electric arc with arc initialization voltage and current supplied under its layer by means of current conducting leads which are buried to protect them against direct impact of arc temperatures and which function to ensure adequate distance between desired opposite sections of arc-feeding electrode pair edges to ensure that arc will be initialized by voltage not exceeding open- circuit value of power source. These particles are falling out of heterogeneous mixture and cease their motion on these surfaces occurring under impact of aerodynamic and gravitational forces. Disperse electrodes are placed directly in channel into divided flow section of heterogeneous mixture materials intended for plasma-arc treatment. EFFECT: enlarged functional capabilities. 6 cl, 7 dwg