转炉出钢时,为了防止钢渣流入钢包,有各种方法,例如:采用挡渣球等,用挡渣球进行挡渣,其效果取决于挡渣球与出钢口的接触情况,由于多种原因,挡渣球的挡渣效果不能令人满意。奥地利Voest-Alpine公司研制成功用气动挡渣塞进行挡渣,1977年已在30吨转炉上使用,现在243吨转炉也使用这种气动挡渣 In the tapping of the converter, in order to prevent the steel slag from flowing into the ladle, there are various methods, for example, the use of a slag-blocking ball and the like to block the slag with the slag-blocking ball. The effect depends on the contact between the slag-blocking ball and the tapping hole, The reason is that the slag-blocking effect of slag-blocking ball is unsatisfactory. Austrian Voest-Alpine company successfully developed with pneumatic blocker slag, slag has been used in 30 tons of converter in 1977, and now 243 tons of converter also use this pneumatic slag