Schwietz Józef, Panic Bogdan, Saternus Mariola, Pieprzyca Jacek, Janiszewski Krystian
Stilmar Częstochowa, 42-202 Częstochowa, Poland.
Faculty of Materials Engineering, Silesian University of Technology, 40-019 Katowice, Poland.
Materials (Basel). 2024 Nov 29;17(23):5860. doi: 10.3390/ma17235860.
Electric arc furnaces are commonly used in foamed slag technology for the production of steel from steel scrap through an electric process. The effects of using this technology include increased efficiency, reduced consumption of refractory materials, reduced energy consumption, reduced electrode wear, and improved arc stability. The world is constantly looking for solutions to optimize the feeding of the foaming agent to the electric furnace, including determining the moment of starting its feeding. The authors propose using two parameters to determine the optimal moment of introducing the foaming agent: the change in the sound level emitted by the arc furnace and the fluctuations in active power consumption. In order to determine the above parameters, tests were carried out on an industrial alternating UHP arc furnace with a capacity of 70 tons. The sound intensity level was determined at which the feeding of the foaming agent to the furnace's working space should begin. A moving coefficient of power consumption variation was developed and decision variables of the software for online foaming agent feeding were determined. As a result of implementing the developed solutions to the electric furnace control system and conducting comparative tests, savings were obtained in the form of reduced foaming agent consumption.
电弧炉常用于泡沫渣技术，通过电炉工艺从废钢生产钢。使用该技术的效果包括提高效率、减少耐火材料消耗、降低能源消耗、减少电极磨损以及提高电弧稳定性。全世界一直在寻找优化向电弧炉添加发泡剂的解决方案，包括确定开始添加的时刻。作者提出使用两个参数来确定引入发泡剂的最佳时刻：电弧炉发出的声级变化和有功功率消耗的波动。为了确定上述参数，在一座容量为70吨的工业交流超高功率电弧炉上进行了测试。确定了向炉内工作空间添加发泡剂时应开始的声强水平。开发了功耗变化的移动系数，并确定了在线发泡剂添加软件的决策变量。通过将开发的解决方案应用于电炉控制系统并进行对比测试，实现了发泡剂消耗减少形式的节约。
