Refractories for the Taphole of Converters

A range of refractory materials for the converter's taphole lining commercially available from the Kombinat Magnezit Joint-Stock Co. and major aspects of the processing technology are considered. The effective use of antioxidant additions is confirmed by thermal analysis. Results of operational tests of refractory materials are discussed. The advantages of an innovative design of the taphole unit composed of blocks of variable diameter and assembled on a metal template are emphasized. An economic feasibility analysis of the use of periclase-carbon taphole blocks is given. The newly designed refractory material are shown to conform with the requirements of modern converter technology.