电熔镁炉铝合金导电横臂的参数计算与仿真分析

Parameter Calculation and Simulation Analysis of Fused Magnesium Furnace Aluminum Conductive Arm

研究电熔镁炉采用铜—钢复合导电横臂存在电能损耗大、电极升降速度慢和控制性能差的问题,提出了采用铝合金导电横臂代替铜—钢复合导电横臂的方法,并针对目前导电横臂阻抗计算误差大的现状给出了精确计算的基本公式,对两种导电横臂的阻抗值进行了理论及仿真计算,同时求得了导电横臂的质量,最后比较分析了两种导电横臂的阻抗、电能损耗、电极调速等参数。仿真结果表明,电熔镁炉采用铝合金导电横臂与铜—钢复合导电横臂电能损耗相近,但电极升降速度和控制性能均有提高。

Fused magnesium furnace applying copper-steel composite conductive arm has the problems of power dissipation, slow speed of electrode, and poor control performance. Solution to replace copper-steel composite conductive arm with aluminum conductive arm was put forward. Basic formula for accurate calculation was provided to solve big error in calculation of conductive arm impedance. Theoretical and simulation calculation of impedance value of two kinds of conductive arms were calculated and mass of conductive arm was obtained. Impedance, electric energy loss, and electrode governing parameters of two conductive arms were compared and analyzed. Simulation results show that power toss of fused magnesium furnace adopting aluminum alloy conductive arm and copper-steel composite conductive cross arm is similar,but electrode lifting speed and control performance are improved.