摘要
为了提高钢水质量,减少出钢过程下渣量、提高合金元素收得率,唐钢公司第二钢轧厂对转炉挡渣工艺进行了优化,改进了挡渣球结构、出钢口形状、挡渣球的加入方式。优化后,挡渣成功率提高约10%;出钢下渣量减少了30%以上;平均回磷量可控制在0.008%以内;硅锰合金吸收率提高了约7%,碳化硅收得率提高约15%,取得了很好的经济效益,且有利于提高精炼效果。
To improve quality of molten steel,reduce slag quantity in tapping and increase recovery ratio of alloy elements,the slag stopping process of converter is optimized： improving the structure of slag stopping ball,tap hole shape and adding method of slag stopping ball.After that success rate of slag stopping is raised by about 10%,slag quantity in tapping reduced by over 30%,average phosphor recovery controlled within 0.008%,absorption rate of silicon-manganese alloy increased by about 7%,recovery rate of silicon carbide increased by about 15 %,good economic profit got.
出处
《河北冶金》
2012年第4期37-38,30,共3页
Hebei Metallurgy
关键词
转炉
挡渣球
挡渣
优化
效果
converter
slag stopping ball
slag stopping
optimization
effect
