PROCESS FOR INTRODUCING ADDITIVE SUBSTANCES WHICH ARE CAPABLE OF FLOW INTO A METALLURGICAL VESSEL AND A VESSEL FOR THAT PROCESS

摘要

PCT No. PCT/EP90/01902 Sec. 371 Date Aug. 23, 1991 Sec. 102(e) Date Aug. 23, 1991 PCT Filed Oct. 26, 1990 PCT Pub. No. WO91/06683 PCT Pub. Date May 16, 1991.For the metallurgical treatment of a molten metal bath (1) in a metallurgical smelting and refining vessel (3), additive substances (43) which are capable of flow, in particular lime, are supplied in a granular to dust state, at least during a part of the refining phase, to the upper region of the inward side (15') of the vessel wall (11), distributed around the periphery thereof. At the vessel wall (11) the additive substances (43) form a barrier or protective layer which reduces the energy losses and increases the service life of the vessel (3).