| abstract |
The invention relates to an injector device (1) for the pyrometallurgical treatment of metals, metal melts, and/or slags in a metallurgical unit or melting vessel, comprising an injector apparatus (2, 3) for producing a high-velocity gas jet (5) from an oxygen gas jet (6) and an ignited combustible-gas/air mixture jet (7), wherein the injector apparatus (2, 3) comprises a de Laval nozzle element (8) for producing the oxygen gas jet (6), which de Laval nozzle element is arranged in a nozzle head part (41), and wherein the combustible-gas/air mixture (7) can be mixed by means of a mixing element (9) for mixing combustible gas (32) and air (36), wherein the de Laval nozzle element (8) and the mixing element (9) are jointly arranged along the center longitudinal axis (13) of the injector apparatus (2, 3) one behind the other in such a way that the de Laval nozzle element and the mixing element can be detached from each other. |