Investigation of Ultrasonic Velocity and Transmission Losses in Graphite Rods Based on Numerical Simulation and Experiment

The depth of electrodes inserted into the charge plays a vital role in controlling submerged arc furnace. Therefore, we used ultrasound waves reflected from electrode tip to estimate charge. However, graphite’s ultrasonic velocity and transmission loss are basis for establishing an measurement system. Thus, expected improve our understanding them through numerical simulations experimental measurements. First, proposed detection method length by embedding graphite rods Söderberg electrodes. Then, developed 3D finite element model COMSOL wave rod. 20 40 cm was simulated using models. loss, sound pressure, intensity, displacement distribution passing were calculated. To verify simulation calculation results, further conducted acoustic experiment. results showed that varies significantly with frequency. When frequency between 25 55 kHz, rod slight. At 47 1.837 dB/m.