关键词反应模型矿热炉参数
中图分类号TF611文献标识码A
DISCUSSION ON IDEAL SMELTING MODEL
OF SUBMERGEDARC FURNACE
Li Jingchun
(Jilin Ferroalloy group Co.Ltd.,Jilin,China 132002)
AbsrtactStarting from the equivalent circuit and heat distribution in submergedarc furnace,it is put forward that an optimum heat distribution relationship exists between the reaction area and furnace charge area,in view of this,a simple smelting model of submergedarc furnace is set up.The model is constituted by the hemisphere reaction area whose bottom is molten metal surface(or conductive furnace bottom)and furnace charge area whose length is electrode spacing and effective charge sectional area is S′.The model′s rationality is briefly discussed,from this the mathematical formula for model′s parameters are derived such as pitch circle diameter,secondary current,effective depth of hearth,electrode diameter and operation tesistance etc.The relationship formula of parameter coefficient in Westly experimental calculation and charge physicalchemical properties from simplifying model′s parameter formula are also derived;by further deiving parameter formala,physical significance of analogue number in analogue method can be reflected more specifically and exactly.The directive function of the smelting model in the production is also introduced.
Keywodsreaction moldel,ore smelting electric arc furnace,parameter
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