摘要
采用电气特性优化模型,对河北钢铁集团150tLF炉进行了电气特性曲线分析,计算了1至4档电压下各工作点的电气参数,优化了现有的供电制度,达到了缩短精炼时间,提高LF热效率的目的。研究结果表明:该150tLF炉1至4档电压下的加热速度在2.46～4.25℃/min之间;通过优化供电制度,加热期间的功率因子由0.5提高到0.72,热效率由0.68提高到0.82,加热速度提高了0.93℃/min,吨钢成本可节约4元。
The electric characteristic curves for Hebei Steel 150 t LF were analyzed by using electric characteristic optimizing model.The reasonable electric supply systems were proposed according to work point technical parameters of first four levels;the optimization efficiently reduced refining time and improved heating efficiency.The results show that the speed of heating-up of 150 t ladle furnace is from 2.46 to 4.25 ℃/min for the first four levels.Through optimizing power supply system,the heating-up speed can be improved 0.93 ℃/min and power factor at heating stage is increased from 0.5 to 0.72,heat efficiency is increased from 0.68 to 0.82,and the cost of product is reduced four yuan/t.
出处
《钢铁》
CAS
CSCD
北大核心
2013年第4期30-34,共5页
Iron and Steel
关键词
供电制度
LF
电耗
power supply system
LF
power consumption
