Mixing Phenomena in a Torpedo-ladel Affected by Gas Injection

Experimental Study by Use of Cold Model

Abstract

For the purpose of improving the efficiency of desulfurization in the gas injection process of torpedo-car, experimental study was carried out by use of cold model. Test lance was inserted into the water in the torpedo-car model. The intensity of mixing was expressed by the mixing time required for the homogenization of a tracer. The mixing time was measured by phenolphthalein method by varying following parameters, i. e. injected gas flow-rate, immersed lance nozzle depth, number of nozzle orifices, and position of lance nozzle relative to the vessel. As the results of this study, it was made clear that these four parameters affected the mixing intensity in torpedo-ladle.