Modeling of solids flow in a blast furnace by the streamline method

The streamline method is applied to simulate solids Row in a blast furnace by superposing potential sources at the lower parts of the furnace model on to a viscous down-flow stream, This superposition yields a stationary zone at the bottom to simulate the so-called 'deadman' in a blast furnace. A bou ndary layer is added on the deadman to satisfy the condition of no slipping there. As a result, analytic expressions for solids velocities have been o btained and the experimental results could be satisfactorily predicted, i.e . there exists a higher velocity in the how region between the side wall an d the central deadman along the depth in a three-dimensional cold model of a blast furnace with coarse polystyrene beads.