熔化期

SR电弧炉熔化期供电优化模型

Optimized Power Supply Model in Melting Period of SR-EAF

尤其是在冶炼的熔化期，炉内变化非常剧烈，传统的PID控制难以满足控制要求，寻求合理的控制规律来解决这个复杂非线性时变对象是控制理论中的一个难点。

Especially in smelting furnace melting period , the changes were very intense ; the traditional PID control was hard to meet control requirements , the control law for a reasonable to solve this complex nonlinear time-varying object was one of the difficulties in the control theory .

在分析附加电抗电弧炉熔化期电气特性的基础上，以电耗和通电时间最小为目标，建立了基于多目标混合整数非线性规划（MINLP）的供电优化模型，来指导熔化期供电策略的制定。

Analyzing the electric characteristics of the melting period of supplemental reactor electric arc furnace ( SR-EAF ), an optimized power supply model is established on the basis of mixed-integer nonlinear programming ( MINLP ) model to minimize the power-on period and electric power consumption .

真空感应炉熔化期工艺优化控制

Optimal control of melting stage process in vacuum induction melting furnace

铜精炼反射炉熔化期重油流量数学模型与应用

A mathematical model of heavy oil flux about reverberator melting process in copper refining and its application

然后根据不同的炉况给出了熔化期四个阶段的供电策略，进而实现电弧炉输入能量的优化，该方法具有较高的预测精度和实际应用价值。

Depending on the furnace conditions and optimization of energy input indicators , the melt is given the power of the four stages of policy , thus achieving the optimization of electric arc furnace input energy .

计算结果表明，电弧等离子体主要以对流换热方式将能量传给钢水和四周环境，因此在熔化期应采用大电流长电弧操作；

The result shows that the energy produced by electric arc plasma is mainly transferred by convective heat transfer to the melted steel . Therefore , the long arc length operation should be adopted during the melting period .

高电压应尽可能在熔化期和氧化中前期使用，及早造好泡沫渣，确保电弧埋弧加热。

The hight voltage make use of a period of melting and a in front of middle period of oxidation time as soon as possible , we should make out scum and insure that electrical arc heat up in the scum .

结果表明：硅铁浸入铁液至完全熔化分为两个时期，即铁壳期和熔化期；

Two separate periods are identified : the iron shell period and melting period , after immersion of ferrosilicon into liquid iron .