NOUFERROUS METALLURGICAL EQUIPMENT

The flue gas particle deposition characteristics in the flue gas recovery process of submerged arc furnace flue in ferronickel smelting was investigated by numerical simulation method. The particle deposition was modeled using Grant and Tabakoff particle bounce model and critical velocity model. The gas flow field was simulated using the RNG k-ε turbulence model. The particle deposition characteristics of water-cooled flue and insulated flue were investigated, as well as the effect of flue gas flow velocity on the particle deposition in the flue. It was found that the deposition rate of the water-cooled flue was significantly lower than that of the insulated flue, and the use of the water-cooled flue could effectively reduce the particle deposition in the flue; with the increase of the flue gas flow velocity, the particle deposition rate was reduced and the optimal flow velocity of the flue gas was 7m/s.