转炉出钢挡渣改进实践  

PRACTICE OF IMPROVEMENT OF CONVERTER SLAG STOPPERS

作　　者：朱伟中 顾克井 田勇 曹建平 贾庆贤 彭其春[2] 李光强[2] 

机构地区：[1]酒泉钢铁公司 [2]武汉科技大学

出　　处：《钢铁研究》2003年第3期9-11,31,共4页Research on Iron and Steel

摘　　要：介绍了酒钢转炉改进出钢挡渣的实践 ,比较了挡渣塞和挡渣球的效果。挡渣塞的挡渣成功率为 98.0 6% ;比用挡渣球高 3 4.42 % ;下渣量可控制在 40mm以内 ,比用挡渣球减少 3 0mm ;平均回磷量控制在 0 .0 0 6%以内 ;硅的收得率提高 2 %～ 3 %。改进挡渣方式后提高了出钢口和钢包的寿命 ,改善了LF炉精炼效果。This paper describes practice of improving converter sla g stoppers at Jiuquan Iron and steel Corp. and compares the performance of slag-st opping plug and slag-stopping ball. The slag-stopping plug had a slag-stopping r ate of 98.06?%,34.42?% higher than that of slag-stopping ball; its thickness in slag ladle was controlled in a range of 40?mm,30?mm lower than that of slag -stopping ball. In addition, the average rephosphoration content of molten stee l was cont rolled less than 0.006?%, the yield rate of silicon increased 2?%～3?%. As a result, both taphole life and ladle life were prolonged and the performance of L F refining improved.

关 键 词：转炉 出钢 挡渣 挡渣塞 挡渣球 

分 类 号：TF713.7[冶金工程—钢铁冶金]