Injector device for blowing oxygen rich gases into or inside a metallurgical unit or melting apparatus and electric arc furnace

摘要

Injector device (1) for the pyrometallurgical treatment of metals, metal melts and / or slags in a metallurgical unit or fusion tank with an injector mechanism (2, 3) to generate a high speed gas jet (5) of an oxygen gas jet (6) and a combustion gas-inflamed air mixture jet (7), in which the injector mechanism (2, 3) comprises a Laval nozzle element (8) arranged in a piece of nozzle head (41) to generate the oxygen gas jet (6), and wherein the combustion gas-air mixture (7) is miscible by a mixing element (9) to mix combustion gas (32) and air (36), characterized in that the Laval nozzle element (8) and the mixing element (9) are arranged one behind the other within and / or on the nozzle head part (41) together along of the central longitudinal axis (13) of the injector mechanism (2, 3) separable from each other, in such a way that the head piece of An annular gap (43) is formed into the nozzle (41) and the Laval nozzle element (8) into which a combustion gas channel (34) and an air channel (38) of the mixing element (9) open.