由于包钢高炉所用矿石比较特殊,高炉投产以来,风口破损十分严重.1977年以前使用空腔铸铜风口时,全厂两座高炉风口年破损量高达2000个以上,其中一座高炉个别月份高达334个,实属罕见,给高炉生产造成巨大损失.自1978年普遍使用高流速方铜管螺旋风口后,加之高炉操作工艺的改进,1981年两座高炉风口年破损量为65个,风口 Since the blast furnace blast furnace ore is rather special, since the blast furnace put into operation, the tuyere damage is very serious.With the use of the cavity bronze tuyere before 1977, the whole plant two blast furnace tuyere damage as high as 2000, one of the blast furnace up to 334 A rare, blast furnace production caused huge losses since the widespread use of high velocity square copper spiral tuyere in 1978, combined with blast furnace operating process improvement, in 1981 two blast furnace tuyere annual damage amount of 65, the outlet