APPARATUS FOR VERTICALLY RAISING AND/OR LOWERING A METALLURGICAL VESSEL, FACILITY HAVING SUCH AN APPARATUS AND METHOD
The invention relates to an apparatus for vertically raising and/or lowering a metallurgical vessel for the production and/or treatment of liquid metal, wherein a weight of the vessel including the liquid metal is in the range from 50 to 350 t, in particular in the range from 180 to 350 t, during raising and/or lowering, wherein the apparatus has a support structure having at least two, independently actuable positioning elements in the form of electromechanical threaded spindle drives for raising and/or lowing the vessel, wherein the electromechanical threaded spindle drives are formed by electromechanical lifting cylinders with a roller screw drive.