新钢铁水质量调整对用料影响分析

Materials Affect Analysis on Hot Metal Quality Adjustment

因提质增效要求,新钢2015年提高了铁水中有害元素砷、锡、铜、铬、磷的质量标准要求,其中磷质量分数标准的调整对铁前用料结构会产生较大影响,主要体现为w(P)大于0.08%的铁料使用量会受到限制,特别是大于0.1%的铁料将会被停止采购和使用,如国内高磷块矿、低品位粗精粉等。加强铁水中磷含量精度控制、减少铁水中磷波动将有利于扩大资源供应的空间。

Due to the requirements of improving quality and increasing benefit,the quality standard requirement for harmful elements like tin,copper,chromium,arsenic,phosphorus are raised in Xinyu Steel in 2015,among them,adjusting the standard of phosphorus mass fraction of iron materials structure will produce great influence. It mainly reflects in iron material used could be limited when W（ P） is more than 0. 08%,especially when it is more than 0. 1% iron material will be to stop buying and using,such as the domestic high phosphorus ore,low grade coarse powder,etc. To strengthen the control accuracy,reduce the fluctuation of phosphorus content in hot iron,and it will help increase the resource space.