Sammendrag
Tapping of slag and metal from metal producing furnaces are often inconsistent and it is difficult to predict the outcome of the process. Nonuniformities in the particle bed has been hypothesized as reasons for inconsistent tapping of slag and metal. Examples of nonuniformities are cracks in the particle bed, zones with looser packed particles (weak zone) and barriers in the particle bed. The impact of these nonuniformities on the tapping rate have been studied by CFD. The CFD model and results of the study are presented.