Numerical Simulation and Application of an Oxygen-Enriched Side-Blown Smelting Furnace for the Treatment of Electroplating Sludge

In the oxygen-enriched side-blown smelting furnace for treatment of electroplating sludge, fluent was used to simulate gas–liquid two-phase flow process. The relationship between lance diameter, inclination, bath depth, and evaluation indicators were studied, oxygen spacing optimized. results show that high velocity gas rate areas near lance, while stirring dead zones with low appeared in central bottom molten pool. key parameters optimized using single-factor analysis multifactor comprehensive optimization. showed all at good levels under optimal parameter conditions. These comprehensively obtained as following: diameter 25 mm, inclination 15°, 1050 depth 1500 mm. industrial test carried out an environmental protection enterprise Guangdong achieved satisfactory results. shows sludge containing 7.24% Cu can be melted 1300~1400 °C obtain matte. Compared copper slag, slag has a higher CaO lower Fe content.