Numerical Simulation of Multi-Physics Fields in Fused Magnesia Furnace

In this paper, a 3D transient multi-physical field model is developed to capture the complex processes inside fused magnesia furnace. The multi-physics integrates electromagnetism, thermodynamics, decomposition reactions, and flow. three-phase submerged furnace includes an arc, magnesite ores, melting pool, solidification ingot. For more comprehensive analysis of optimal design industrial operations, influence key index electrode insertion depth on temperature reaction also discussed. results show that current density in almost same as joule heat distribution, there obvious area low energy affected by skin effect, which leads waste electric energy. at center arc reaches 12,000 K, plasma areas formed end three electrodes are connected each other form closed path, provides for process magnesia. region ellipsoid with length ~30 mm diameter ~49 mm. mainly occurs area, radiation provided high-temperature used source. There no molten pool only When 0.4, 0.5, 0.6, 0.7 m, 0.049 0.066 0.068 0.059 respectively. According simulation results, depth.