Method and device for operating a change converter unit of an oxygen steel-making plant

Method of operating a changing converter unit (1) of a converter steel plant, wherein alternatingly the converter (4a) which has become useless because of wear of the refractory material is removed from a converter stand for repairs and a converter (4b) newly lined with refractory material is placed in the converter stand in an exchange, wherein, when the exchange procedure is carried out, the worn converter (4a) is moved including the entire complete converter unit (3a) composed, in addition to the converter (4a), of an integrated converter carriage (7), support ring (6), tilting drive (5), floor rinsing device (9) and a possibly present support ring cooling device (10), from the converter stand (2) for repairs into a free lining and holding stand (12a) and simultaneously another structurally identical complete converter unit 3b, which contains a repaired useful converter (4b), is moved from another lining and holding stand (12b) into the converter stand (2), wherein the transport of the complete converter unit (3a, 3b) is carried out by means of the integrated converter carriage (7) constructed with its own drive on a converter carriage track (17), wherein, after separating the complete converter unit (3a, 3b) from an energy and media station (11) which is used jointly by both complete converter units (3a, 3b), for providing an energy supply for the transport a self-propelled energy supply carriage (14) is moved in and coupled to the converter carriage (7) through the converter carriage track (17).