氧枪喷头是顶吹氧气转炉的主要工艺设备。它的合理性,对炉子的技术经济指标有极大的影响。几年来,三炼钢厂对氧枪喷头作过多次改进,从单孔、单三式发展到三喉式,直至目前的五喉式(A—5型喷头)。对于这些发展过程及每次修改的意图,在1974年的《三孔喷头的使用总 Oxygen gun nozzle is the top blowing oxygen converter’s main process equipment. Its rationality has a tremendous impact on the technical and economic indicators of the furnace. Over the past few years, the third steel mills made several improvements to the oxygen lance nozzle, from the single-hole, single three-type development to the throat type until the current five throat type (A-5 nozzle). For these developments and the intent of each modification, in 1974 the "total usage of three-hole sprinklers