An improved apparatus for projecting a solids-containing gaseous media into an arc discharge utilizing a cone shaped cathode, with a passage along the conical surface thereof for insertion of gaseous media into the arc discharge, employing a plurality of individual linear feed channels having a constant flow cross-sectional area in said passage, said individual feed channels being supplied from a common source of a solids entrained gaseous media through flow splitters splitting said gaseous media into equal amounts, said flow splitters having two or more converging channels on the outlet side forming an angle of 15.degree. or less, opening into a channel of the same or greater cross-sectional area as the sum of the areas of the two or more converging channels, where the outlet area of said plurality of individual linear feed channels is extensively cooled to maintain the surface temperature of the outlet area below the temperature at which the solids contained in said gaseous media agglomerate; as well as the method for energizing a solids-containing gaseous media by means of an arc discharge employing said improved apparatus.