Research of heat exchange and efficiency of the arcs in the arc steel-melting furnaces with usual conveyor and loaded

3rd International Scientific and Technical Conference “Energy Systems”

Makarov, A.N.^1 ; Okuneva, V.V.^1 ; Pavlova Yu, M.^1

Departament of Electrical Supply and Electrical Engineering, Tver State Technical University, nab. Af Nikitina 22, Tver

170026, Russia^1

关键词: Arc furnaces;    Average efficiencies;    Electric arc furnace;    Heat exchange;    Metal bath;    Oxidation of coke;    Specific energy consumption;    Steel-melting furnaces;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/552/1/012036/pdf
DOI  :  10.1088/1757-899X/552/1/012036

来源: IOP

【 摘 要 】

The analysis of heat exchange and the efficiency of the arcs in the arc steel-melting furnaces with usual conveyor and loaded. For comparison, accepted arc furnace close in power and performance. The analysis revealed that the average efficiency of arcs furnace Consteel ASF-120co 8-9% less than particle ASF-120us. Analysis of the efficiency of the arcs of electric arc furnaces allowed to explain more 8-9% lower specific energy consumption in the furnace ASF-120co compared to the same period in the furnace ASF-120us. Calculation and the analysis of efficiency of various ways of input of heat in a bathtub of metal of ASF-120co and ASF-120us furnaces is performed. The most effective way is introduction of heat by means of electric arches which efficiency is 0,69-0,78. Heating of the metal charge by means of torches of gas-oxygen torches, efficiency of the method 0,45-0,55 is less effectively carried out. Heating of a metal bath by means of oxidation of coke which is continuously entered into slag for foaming of the last is carried out with the efficiency of a way of the method 0,28-0,36.