Numerical Simulation of Gas-Particle Characteristics in Copper Flash Smelting Furnace
A CFD-DEM coupling method is adopted to simulate the cooper flash smelting furnace and the key parameters such as gas velocity and temperature,particle temperature and residence time under given working conditions are analyzed and studied.The simulation results show that in the flash smelting furnace reactor shaft,the particle and gas phase are both conical in distribution.Within 2m from the top of the reactor shaft,the average temperature of particles increases rapidly,and the mass fraction of CuFeS2 in concentrate particles decreases sharply,indicating that particles reach the reaction temperature and react quickly after entering the reactor.The residence time results show that particles reach the surface of the settler within 1s.The predicted average temperature of the flash smelting furnace is basically consistent with the temperature provided by the technologist,indicating that the simulation model established is accurate in the calculation of the copper flash smelting process.
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